Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-di­imine ligands

Kanno, T.; Takase, T.; Oyama, D.

doi:10.1107/S2056989020010750

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Volume 76| Part 9| September 2020| Pages 1433-1436

https://doi.org/10.1107/S2056989020010750

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Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-diimine ligands

Takatoshi Kanno,^a Tsugiko Takase ^b and Dai Oyama ^b ^*

^aGraduate School of Science and Engineering, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan, and ^bDepartment of Natural Sciences and Informatics, Fukushima University, 1, Kanayagawa, Fukushima 960-1296, Japan
^*Correspondence e-mail: daio@sss.fukushima-u.ac.jp

Edited by G. Diaz de Delgado, Universidad de Los Andes, Venezuela (Received 13 July 2020; accepted 4 August 2020; online 11 August 2020)

The crystal structures of two manganese(I) complexes with ester-substituted bipyridine or biquinoline supporting ligands are reported, namely, fac-bromidotricarbonyl(diethyl 2,2′-bipyridine-4,4′-dicarboxylate-κ²N,N′)manganese(I), [MnBr(C₁₆H₁₆N₂O₄)(CO)₃], I, and fac-bromidotricarbonyl(diethyl 2,2′-biquinoline-4,4′-dicarboxylate-κ²N,N′)manganese(I), [MnBr(C₂₄H₂₀N₂O₄)(CO)₃], II. In both complexes, the manganese(I) atom adopts a distorted octahedral coordination sphere defined by three carbonyl C atoms, a Br⁻ anion and two N atoms from the chelating α-diimine ligand. Both complexes show fac configurations of the carbonyl ligands. In I, the complex molecules are linked by C—H⋯Br hydrogen bonds and aromatic π–π contacts. In II, intramolecular C—H⋯O hydrogen bonds are present as well as intermolecular C—H⋯O and C—H⋯Br hydrogen bonds and π–π interactions.

Keywords: crystal structure; manganese(I) complex; bipyridyl ligand; biquinolyl ligand; ester substituent.

CCDC references: 2021226; 2021225

1. Chemical context

Similar to carbonyl complexes of precious metals, such as ruthenium and rhenium, those with less expensive manganese are attracting attention for their application in CO₂reduction catalysts (Bourrez et al., 2011 ) and as CO-releasing molecules (CORMs) under external stimuli (Chakraborty et al., 2014a ). For example, CORMs using manganese(I) carbonyl complexes controllably release CO by photoirradiation (Motterlini et al., 2002 ). Considering their application in vivo, photo-CORMs are expected to utilize light at lower energy. In general, extended π-conjugation systems in organic ligands lead to redshifts of charge-transfer (CT) transition bands of manganese(I) carbonyl complexes (Chakraborty et al., 2014b ). Therefore, it is essential to investigate the relationship between molecular structures including π-conjugation systems and photophysical properties.

Thus, we focused on the comparison of bipyridines, which are prototypes of the α-diimine ligand, and biquinolines with a more extended π-conjugation system. In addition, the introduction of ester groups into these ligands allows chemical adsorption with various metal oxides (Ardo & Meyer, 2009 ; Zhang et al., 2006 ). In this study, we synthesized manganese(I) tricarbonyl complexes bearing two types of α-diimine compounds, which contain both an ester substituent and different π-conjugation systems, viz. diethyl 2,2′-bipyridine-4,4′-dicarboxylate (debpy) and diethyl 2,2′-biquinoline-4,4′-didicarboxylate (debqn): fac-[MnBr(CO)₃(debpy)] (I) and fac-[MnBr(CO)₃(debqn)] (II). We successfully compared their crystal structures and photophysical properties. As expected, a CT band shift in the visible region was confirmed, depending on the size of the π-conjugation system in α-diimine ligands. This finding will provide information in the future design of suitable complexes for a variety of photoreactions (Chakraborty et al., 2014b).

2. Structural commentary

The molecular structures of compounds I and II are shown in Figs. 1 and 2, respectively. In both complexes, the manganese(I) atoms exhibit distorted octahedral coordination geometries and display primary coordination spheres that are similar to those reported for other structurally related complexes (Chakraborty et al., 2014a; Walsh et al., 2015 ). The metal–ligand bond lengths are similar to those previously reported for compounds of this type; in I, the Mn—N bond lengths are 2.046 (3) and 2.047 (2) Å, while in II, the Mn—N bond lengths are 2.063 (2) and 2.068 (2) Å. In I and II, the fac configuration of three CO ligands around the central manganese(I) atom is in agreement with their IR data. On the basis of their bond parameters, all CO ligands have typical triple-bond characters.

Figure 1
Molecular structure of I with atom labeling and displacement ellipsoids drawn at the 50% probability level.

Figure 2
Molecular structure of II with atom labeling and displacement ellipsoids drawn at the 50% probability level.

The torsion angles between the equatorial plane and the debpy pyridyl ring in I (C3—Mn1—N1—C8 and C2—Mn1—N2—C9) are −169.17 (15) and 168.81 (14)°, respectively; the corresponding torsion angles in II (C3—Mn1—N1—C12 and C2—Mn1—N2—C13) are −147.52 (16) and 147.08 (17)°, respectively (Fig. 3). The large differences in torsion angles between I and II are mainly due to steric hindrance between H atoms (H1 and H10) in debqn, and the equatorial CO ligands (C3≡O3 and C2≡O2). On the basis of similar steric hindrance, comparable torsion angles [150.4 (15) and −150.7 (5)°] have been also observed in the related Re^I complex (Hallett et al., 2011 ).

Figure 3
Side-on views of I (left) and II (right). H atoms are omitted for clarity.

Despite similar molecular skeletons, only II exhibits intramolecular hydrogen bonds between the ester group and the quinolyl ring (Table 2). The C—C bond lengths of the coordinated pyridyl rings in I [C6—C7 = 1.395 (3) Å and C10—C11 = 1.392 (3) Å] are considerably longer than the corresponding one in II [C10—C11 = 1.364 (4) Å and C14—C15 = 1.368 (4) Å]. This difference in structural parameters may eventually affect the intramolecular hydrogen-bond formation.

Table 2
Hydrogen-bond geometry (Å, °) for II

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C7—H4⋯O4	0.95	2.44	3.040 (4)	121
C11—H5⋯Br1ⁱ	0.95	2.92	3.789 (3)	153
C14—H6⋯O7	0.95	2.33	2.659 (3)	100
C18—H7⋯O6	0.95	2.25	2.883 (5)	124
C19—H8⋯O2ⁱⁱ	0.95	2.47	3.373 (4)	160
C20—H9⋯O6ⁱⁱⁱ	0.95	2.51	3.383 (4)	153
Symmetry codes: (i) -x, -y+1, -z; (ii) $[-x+1, y-{\script{1\over 2}}, -z+{\script{1\over 2}}]$ ; (iii) $[-x+1, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]$ .

3. Supramolecular features

In the crystal structure of I, complex molecules are linked by pairs of weak C—H⋯Br hydrogen bonds (Table 1) and π–π interactions [Cg1⋯Cg2ⁱⁱⁱ = 3.683 (1) Å; Cg1 and Cg2 are the centroids of the N1/C4–C8 and N2/C9–C13 rings, respectively; symmetry code: (iii) 1 − x, −y, 1 − z], forming a three-dimensional supramolecular structure (Fig. 4).

Table 1
Hydrogen-bond geometry (Å, °) for I

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C5—H2⋯Br1ⁱ	0.95	2.90	3.502 (3)	122
C13—H6⋯Br1ⁱⁱ	0.95	2.78	3.537 (3)	138
Symmetry codes: (i) $[x+{\script{1\over 2}}, -y+{\script{1\over 2}}, z]$ ; (ii) $[x-{\script{1\over 2}}, -y+{\script{1\over 2}}, z]$ .

Figure 4
Crystal packing of I with C—H⋯Br hydrogen bonds (blue) and π–π contacts (green) shown as dashed lines; ring centroids are shown as red spheres.

In the crystal structure of II, there are weak C—H⋯O and C—H⋯Br hydrogen-bonding interactions (Table 2) as well as the above-mentioned intramolecular hydrogen bonds. Additional π–π contacts are observed [Cg3⋯Cg4^iv = 3.732 (2) Å and Cg5⋯Cg6^iv = 4.002 (2) Å; Cg3, Cg4, Cg5 and Cg6 are the centroids of the C4–C9, C16–C21, N1/C8–C12 and N2/C13–C17 rings, respectively; symmetry code: (iv) 1 − x, 1 − y, −z]. These interactions lead to the formation of a three-dimensional network structure (Fig. 5).

Figure 5
Crystal packing of II with C—H⋯Br hydrogen bonds (blue) and π–π contacts (green) shown as dashed lines; ring centroids are shown as red spheres.

4. Database survey

With respect to manganese(I) complexes with a bidentate bipyridine derivative ligand (N-N) of the form fac-[MnBr(CO)₃(N-N)], some structures have been reported (CSD refcode POKGAZ; Chakraborty et al., 2014a, FUMKOQ and FUMKUW; Henke et al., 2020 , NIBSOJ; Lense et al., 2018 , XUVMUY and XUVNAF; Walsh et al., 2015). However, no structures of bidentate biquinoline derivative–coordinated manganese(I) complexes have been reported; two structures of the corresponding rhenium(I) complexes have been determined by Hallett et al., 2011 (EBANEC) and Kurz et al., 2006 (XELXOC).

5. Synthesis and crystallization

The ligands, debpy and debqn, were prepared as described by Chandrasekharam et al. (2011 ) and Hoertz et al. (2006 ). The ligands were confirmed to be spectroscopically pure (by IR and ¹H NMR analyses).

Synthesis of I and II: Compounds I and II were handled and stored in the dark to minimize exposure to light. For the synthesis of I, [MnBr(CO)₅] (31 mg, 0.11 mmol) and debpy (33 mg, 0.11 mmol) were dissolved in CHCl₃ (10 ml). The reaction mixture was stirred at 313 K for 14 h under N₂. After the solvent was evaporated under reduced pressure, an excess of Et₂O (30 ml) was added to the solution; then, the solution was allowed to stand at 253 K overnight. The resultant precipitate was collected by filtration, washed with Et₂O, and then dried under vacuum (37 mg yield, 64%). Red crystals, suitable for the X-ray diffraction experiment, were grown by diffusion of n-hexane into an acetone solution of I for one week. FTIR (KBr pellet): νCO /cm⁻¹ = 2028, 1918 (br) (C≡O), 1730 (C=O). UV–vis (CHCl₃): λ /nm (∊ /M⁻¹ cm⁻¹) = 483 (3700), 367 (4100), 318 (21000), 247 (24000).

A similar reaction between [MnBr(CO)₅] (8 mg, 0.029 mmol) and debqn (10 mg, 0.026 mmol) for 20 h afforded II (11 mg yield, 66%). Purple crystals, suitable for the X-ray diffraction experiment, were grown by diffusion of n-hexane into an acetone solution of II for one week. FTIR (KBr pellet): νCO /cm⁻¹ = 2016, 1942, 1926 (C≡O), 1725 (C=O). UV–vis (CHCl₃): λ /nm (∊ /M⁻¹ cm⁻¹) = 548 (3200), 383 (19000), 276 (37000).

6. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 3. All hydrogen atoms were placed at calculated positions (C—H = 0.95—0.99 Å) and refined using a riding model with U_iso(H) = 1.2U_eq(C).

Table 3
Experimental details

	I	II
Crystal data
Chemical formula	[MnBr(C₁₆H₁₆N₂O₄)(CO)₃]	[MnBr(C₂₄H₂₀N₂O₄)(CO)₃]
M_r	519.19	619.31
Crystal system, space group	Monoclinic, P2₁/a	Monoclinic, P2₁/c
Temperature (K)	93	93
a, b, c (Å)	11.7054 (7), 13.9151 (7), 13.3273 (8)	8.8953 (9), 12.0086 (13), 23.790 (3)
β (°)	110.347 (2)	95.794 (2)
V (Å³)	2035.3 (2)	2528.3 (5)
Z	4	4
Radiation type	Mo Kα	Mo Kα
μ (mm⁻¹)	2.66	2.16
Crystal size (mm)	0.25 × 0.20 × 0.05	0.20 × 0.08 × 0.05

Data collection
Diffractometer	Rigaku Saturn724	Rigaku Saturn70
Absorption correction	Multi-scan (REQAB; Rigaku, 1998 )	Multi-scan (REQAB; Rigaku, 1998)
T_min, T_max	0.730, 0.875	0.461, 0.898
No. of measured, independent and observed [F² > 2.0σ(F²)] reflections	20542, 4653, 4050	25401, 5757, 4100
R_int	0.029	0.080
(sin θ/λ)_max (Å⁻¹)	0.650	0.649

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.037, 0.098, 1.07	0.046, 0.134, 1.05
No. of reflections	4653	5757
No. of parameters	273	345
H-atom treatment	H-atom parameters constrained	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.05, −0.56	0.79, −1.07
Computer programs: CrystalClear (Rigaku, 2015 ), PROCESS-AUTO (Rigaku, 1998), SIR97 (Altomare et al., 1999 ), SHELXT2018/3 (Sheldrick, 2015a ), SHELXL2018/3 (Sheldrick, 2015b ), Mercury (Macrae et al., 2020 ), ORTEP-3 for Windows (Farrugia, 2012 ), CrystalStructure (Rigaku, 2019 ), PLATON (Spek, 2020 ) and publCIF (Westrip, 2010 )

Supporting information

CCDC references: 2021226; 2021225

Crystal structure: contains datablocks global, I, II. DOI: https://doi.org/10.1107/S2056989020010750/dj2012sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989020010750/dj2012Isup2.hkl

Structure factors: contains datablock II. DOI: https://doi.org/10.1107/S2056989020010750/dj2012IIsup3.hkl

Supporting information file. DOI: https://doi.org/10.1107/S2056989020010750/dj2012Isup4.mol

Supporting information file. DOI: https://doi.org/10.1107/S2056989020010750/dj2012IIsup5.mol

checkCIF report

Computing details top

Data collection: CrystalClear (Rigaku, 2015) for (I); PROCESS-AUTO (Rigaku, 1998) for (II). Cell refinement: CrystalClear (Rigaku, 2015) for (I); PROCESS-AUTO (Rigaku, 1998) for (II). Data reduction: CrystalClear (Rigaku, 2015) for (I); PROCESS-AUTO (Rigaku, 1998) for (II). Program(s) used to solve structure: SIR97 (Altomare et al., 1999) for (I); SHELXT2018/3 (Sheldrick, 2015a) for (II). For both structures, program(s) used to refine structure: SHELXL2018/3 (Sheldrick, 2015b); molecular graphics: Mercury (Macrae et al., 2020), ORTEP-3 for Windows (Farrugia, 2012). Software used to prepare material for publication: CrystalStructure (Rigaku, 2019), PLATON (Spek, 2020), publCIF (Westrip, 2010) for (I); CrystalStructure Rigaku, 2019), PLATON (Spek, 2020), publCIF (Westrip, 2010) for (II).

fac-Bromidotricarbonyl(diethyl 2,2'-bipyridine-4,4'-dicarboxylate-κ²N,N')manganese(I) (I) top

Crystal data top

[MnBr(C₁₆H₁₆N₂O₄)(CO)₃]	F(000) = 1040.00
M_r = 519.19	D_x = 1.694 Mg m⁻³
Monoclinic, P2₁/a	Mo Kα radiation, λ = 0.71075 Å
a = 11.7054 (7) Å	Cell parameters from 5049 reflections
b = 13.9151 (7) Å	θ = 3.2–27.5°
c = 13.3273 (8) Å	µ = 2.66 mm⁻¹
β = 110.347 (2)°	T = 93 K
V = 2035.3 (2) Å³	Block, red
Z = 4	0.25 × 0.20 × 0.05 mm

Data collection top

Rigaku Saturn724 diffractometer	4050 reflections with F² > 2.0σ(F²)
Detector resolution: 28.626 pixels mm^-1	R_int = 0.029
ω scans	θ_max = 27.5°, θ_min = 3.2°
Absorption correction: multi-scan (REQAB; Rigaku, 1998)	h = −15→15
T_min = 0.730, T_max = 0.875	k = −18→18
20542 measured reflections	l = −16→17
4653 independent reflections

Refinement top

Refinement on F²	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.037	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.098	H-atom parameters constrained
S = 1.07	w = 1/[σ²(F_o²) + (0.055P)² + 1.4779P] where P = (F_o² + 2F_c²)/3
4653 reflections	(Δ/σ)_max = 0.001
273 parameters	Δρ_max = 1.05 e Å⁻³
0 restraints	Δρ_min = −0.56 e Å⁻³
Primary atom site location: structure-invariant direct methods

Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Refinement. Refinement was performed using all reflections. The weighted R-factor (wR) and goodness of fit (S) are based on F². R-factor (gt) are based on F. The threshold expression of F² > 2.0 sigma(F²) is used only for calculating R-factor (gt).

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
Br1	0.61566 (2)	0.30862 (2)	0.74453 (2)	0.02885 (10)
Mn1	0.59428 (3)	0.13106 (3)	0.76285 (3)	0.02227 (11)
O1	0.56476 (18)	−0.07302 (16)	0.80205 (17)	0.0373 (5)
O2	0.4659 (2)	0.17993 (16)	0.91224 (17)	0.0383 (5)
O3	0.82383 (19)	0.14080 (17)	0.94807 (17)	0.0445 (6)
O4	0.9317 (2)	0.0758 (2)	0.4214 (2)	0.0611 (8)
O5	0.74278 (19)	0.0819 (2)	0.30486 (17)	0.0491 (6)
O6	0.06293 (17)	0.21138 (15)	0.31716 (16)	0.0348 (5)
O7	0.18898 (17)	0.15004 (15)	0.23897 (15)	0.0337 (5)
N1	0.67488 (18)	0.10977 (15)	0.65084 (17)	0.0225 (4)
N2	0.44701 (18)	0.13714 (14)	0.62383 (16)	0.0204 (4)
C1	0.57649 (19)	−0.00038 (19)	0.78541 (18)	0.0184 (5)
C2	0.5130 (2)	0.1609 (2)	0.8528 (2)	0.0281 (6)
C3	0.7357 (2)	0.1367 (2)	0.8760 (2)	0.0300 (6)
C4	0.7938 (2)	0.09076 (19)	0.6709 (2)	0.0277 (6)
H1	0.846290	0.085051	0.743314	0.033*
C5	0.8427 (2)	0.07926 (19)	0.5918 (2)	0.0286 (6)
H2	0.926942	0.065380	0.609537	0.034*
C6	0.7678 (2)	0.08816 (17)	0.4859 (2)	0.0248 (5)
C7	0.6442 (2)	0.10676 (17)	0.4631 (2)	0.0227 (5)
H3	0.590464	0.112142	0.391116	0.027*
C8	0.6010 (2)	0.11726 (17)	0.5469 (2)	0.0212 (5)
C9	0.4718 (2)	0.13526 (16)	0.53200 (19)	0.0195 (5)
C10	0.3818 (2)	0.14873 (17)	0.4324 (2)	0.0218 (5)
H4	0.401900	0.149195	0.369186	0.026*
C11	0.2618 (2)	0.16152 (17)	0.42677 (19)	0.0218 (5)
C12	0.2358 (2)	0.16067 (18)	0.5208 (2)	0.0228 (5)
H5	0.154399	0.167911	0.518946	0.027*
C13	0.3306 (2)	0.14909 (17)	0.6174 (2)	0.0219 (5)
H6	0.312656	0.149609	0.681603	0.026*
C14	0.8236 (2)	0.08021 (19)	0.4011 (2)	0.0300 (6)
C15	0.7888 (3)	0.0781 (3)	0.2161 (3)	0.0509 (9)
H7	0.812429	0.143292	0.200741	0.061*
H8	0.861458	0.036113	0.234873	0.061*
C16	0.6927 (3)	0.0403 (3)	0.1227 (3)	0.0487 (8)
H9	0.720196	0.040532	0.061186	0.058*
H10	0.619799	0.080493	0.106964	0.058*
H11	0.673358	−0.025646	0.137198	0.058*
C17	0.1594 (2)	0.17805 (19)	0.3228 (2)	0.0256 (5)
C18	0.0934 (3)	0.1635 (3)	0.1343 (2)	0.0437 (8)
H12	0.067516	0.231576	0.124367	0.052*
H13	0.021624	0.123338	0.128791	0.052*
C19	0.1454 (4)	0.1343 (3)	0.0510 (2)	0.0577 (11)
H14	0.170249	0.066677	0.061456	0.069*
H15	0.216324	0.174389	0.057323	0.069*
H16	0.083590	0.142579	−0.020197	0.069*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Br1	0.02690 (15)	0.02926 (15)	0.03069 (16)	−0.00070 (10)	0.01041 (11)	−0.00024 (10)
Mn1	0.01673 (19)	0.0283 (2)	0.01915 (19)	0.00051 (14)	0.00286 (14)	−0.00025 (14)
O1	0.0297 (11)	0.0444 (13)	0.0364 (11)	0.0040 (9)	0.0096 (9)	0.0013 (9)
O2	0.0380 (12)	0.0490 (13)	0.0330 (11)	−0.0006 (9)	0.0187 (10)	−0.0064 (9)
O3	0.0273 (11)	0.0608 (15)	0.0333 (11)	−0.0066 (10)	−0.0047 (9)	0.0106 (10)
O4	0.0359 (13)	0.099 (2)	0.0583 (16)	0.0226 (13)	0.0288 (12)	0.0239 (15)
O5	0.0283 (11)	0.0907 (19)	0.0335 (11)	−0.0039 (11)	0.0173 (9)	−0.0114 (12)
O6	0.0197 (9)	0.0471 (12)	0.0318 (11)	0.0090 (8)	0.0015 (8)	−0.0025 (9)
O7	0.0248 (10)	0.0503 (12)	0.0200 (9)	0.0118 (8)	0.0003 (7)	0.0020 (8)
N1	0.0160 (9)	0.0241 (10)	0.0241 (10)	0.0007 (8)	0.0027 (8)	−0.0001 (8)
N2	0.0164 (9)	0.0221 (10)	0.0215 (10)	−0.0004 (7)	0.0052 (8)	−0.0011 (8)
C1	0.0063 (9)	0.0344 (14)	0.0133 (10)	0.0023 (9)	0.0021 (8)	−0.0008 (9)
C2	0.0232 (13)	0.0321 (13)	0.0237 (13)	−0.0027 (10)	0.0015 (11)	0.0001 (10)
C3	0.0273 (13)	0.0344 (14)	0.0278 (13)	−0.0011 (11)	0.0089 (11)	0.0042 (11)
C4	0.0167 (11)	0.0316 (13)	0.0308 (13)	0.0030 (10)	0.0033 (10)	−0.0014 (11)
C5	0.0164 (11)	0.0268 (13)	0.0410 (15)	0.0020 (9)	0.0080 (11)	−0.0020 (11)
C6	0.0214 (12)	0.0197 (12)	0.0361 (14)	−0.0015 (9)	0.0136 (11)	−0.0030 (10)
C7	0.0192 (11)	0.0231 (12)	0.0258 (12)	−0.0022 (9)	0.0076 (10)	−0.0033 (9)
C8	0.0153 (11)	0.0210 (11)	0.0257 (12)	−0.0008 (9)	0.0051 (9)	−0.0019 (9)
C9	0.0160 (11)	0.0198 (11)	0.0223 (11)	−0.0012 (8)	0.0060 (9)	−0.0014 (9)
C10	0.0195 (11)	0.0227 (12)	0.0232 (12)	0.0013 (9)	0.0074 (10)	−0.0013 (9)
C11	0.0185 (11)	0.0217 (11)	0.0217 (12)	0.0006 (9)	0.0026 (9)	−0.0008 (9)
C12	0.0151 (11)	0.0246 (12)	0.0275 (13)	−0.0004 (9)	0.0058 (10)	−0.0018 (10)
C13	0.0177 (11)	0.0245 (12)	0.0238 (12)	0.0000 (9)	0.0078 (9)	−0.0011 (9)
C14	0.0264 (14)	0.0261 (13)	0.0433 (16)	0.0003 (10)	0.0194 (12)	0.0022 (11)
C15	0.0442 (19)	0.076 (3)	0.0455 (19)	−0.0077 (17)	0.0318 (16)	−0.0074 (17)
C16	0.054 (2)	0.065 (2)	0.0344 (17)	−0.0040 (17)	0.0246 (15)	0.0039 (16)
C17	0.0202 (12)	0.0275 (13)	0.0252 (13)	0.0000 (10)	0.0028 (10)	−0.0001 (10)
C18	0.0335 (16)	0.066 (2)	0.0220 (14)	0.0164 (15)	−0.0026 (12)	0.0040 (14)
C19	0.056 (2)	0.084 (3)	0.0250 (15)	0.034 (2)	0.0043 (15)	0.0070 (16)

Geometric parameters (Å, º) top

Br1—Mn1	2.5038 (5)	C6—C14	1.493 (4)
Mn1—C3	1.812 (3)	C7—C8	1.385 (4)
Mn1—C2	1.819 (3)	C7—H3	0.9500
Mn1—C1	1.877 (3)	C8—C9	1.477 (3)
Mn1—N1	2.046 (2)	C9—C10	1.391 (3)
Mn1—N2	2.047 (2)	C10—C11	1.392 (3)
O1—C1	1.054 (3)	C10—H4	0.9500
O2—C2	1.142 (3)	C11—C12	1.389 (4)
O3—C3	1.141 (3)	C11—C17	1.502 (3)
O4—C14	1.200 (3)	C12—C13	1.386 (3)
O5—C14	1.303 (4)	C12—H5	0.9500
O5—C15	1.461 (4)	C13—H6	0.9500
O6—C17	1.199 (3)	C15—C16	1.455 (5)
O7—C17	1.337 (3)	C15—H7	0.9900
O7—C18	1.466 (3)	C15—H8	0.9900
N1—C4	1.350 (3)	C16—H9	0.9800
N1—C8	1.358 (3)	C16—H10	0.9800
N2—C13	1.345 (3)	C16—H11	0.9800
N2—C9	1.353 (3)	C18—C19	1.495 (5)
C4—C5	1.373 (4)	C18—H12	0.9900
C4—H1	0.9500	C18—H13	0.9900
C5—C6	1.384 (4)	C19—H14	0.9800
C5—H2	0.9500	C19—H15	0.9800
C6—C7	1.395 (3)	C19—H16	0.9800

C3—Mn1—C2	88.72 (12)	C10—C9—C8	123.5 (2)
C3—Mn1—C1	91.66 (11)	C9—C10—C11	118.9 (2)
C2—Mn1—C1	90.24 (11)	C9—C10—H4	120.5
C3—Mn1—N1	95.38 (11)	C11—C10—H4	120.5
C2—Mn1—N1	173.53 (10)	C12—C11—C10	119.0 (2)
C1—Mn1—N1	94.63 (9)	C12—C11—C17	118.6 (2)
C3—Mn1—N2	171.65 (11)	C10—C11—C17	122.4 (2)
C2—Mn1—N2	96.79 (10)	C13—C12—C11	118.9 (2)
C1—Mn1—N2	94.58 (9)	C13—C12—H5	120.6
N1—Mn1—N2	78.60 (8)	C11—C12—H5	120.6
C3—Mn1—Br1	86.86 (9)	N2—C13—C12	122.7 (2)
C2—Mn1—Br1	86.10 (9)	N2—C13—H6	118.7
C1—Mn1—Br1	176.08 (7)	C12—C13—H6	118.7
N1—Mn1—Br1	89.12 (6)	O4—C14—O5	124.8 (3)
N2—Mn1—Br1	87.26 (6)	O4—C14—C6	122.6 (3)
C14—O5—C15	116.8 (2)	O5—C14—C6	112.6 (2)
C17—O7—C18	115.1 (2)	C16—C15—O5	108.2 (3)
C4—N1—C8	117.7 (2)	C16—C15—H7	110.1
C4—N1—Mn1	126.13 (17)	O5—C15—H7	110.1
C8—N1—Mn1	116.18 (16)	C16—C15—H8	110.1
C13—N2—C9	118.4 (2)	O5—C15—H8	110.1
C13—N2—Mn1	125.35 (17)	H7—C15—H8	108.4
C9—N2—Mn1	116.12 (15)	C15—C16—H9	109.5
O1—C1—Mn1	176.5 (2)	C15—C16—H10	109.5
O2—C2—Mn1	177.5 (2)	H9—C16—H10	109.5
O3—C3—Mn1	179.0 (3)	C15—C16—H11	109.5
N1—C4—C5	123.2 (2)	H9—C16—H11	109.5
N1—C4—H1	118.4	H10—C16—H11	109.5
C5—C4—H1	118.4	O6—C17—O7	124.9 (2)
C4—C5—C6	119.1 (2)	O6—C17—C11	123.3 (3)
C4—C5—H2	120.4	O7—C17—C11	111.7 (2)
C6—C5—H2	120.4	O7—C18—C19	107.4 (2)
C5—C6—C7	118.7 (2)	O7—C18—H12	110.2
C5—C6—C14	118.4 (2)	C19—C18—H12	110.2
C7—C6—C14	122.9 (2)	O7—C18—H13	110.2
C8—C7—C6	119.1 (2)	C19—C18—H13	110.2
C8—C7—H3	120.5	H12—C18—H13	108.5
C6—C7—H3	120.5	C18—C19—H14	109.5
N1—C8—C7	122.2 (2)	C18—C19—H15	109.5
N1—C8—C9	114.2 (2)	H14—C19—H15	109.5
C7—C8—C9	123.6 (2)	C18—C19—H16	109.5
N2—C9—C10	122.1 (2)	H14—C19—H16	109.5
N2—C9—C8	114.4 (2)	H15—C19—H16	109.5

C8—N1—C4—C5	0.3 (4)	C8—C9—C10—C11	177.5 (2)
Mn1—N1—C4—C5	−178.5 (2)	C9—C10—C11—C12	0.2 (4)
N1—C4—C5—C6	0.5 (4)	C9—C10—C11—C17	179.0 (2)
C4—C5—C6—C7	−1.2 (4)	C10—C11—C12—C13	1.3 (4)
C4—C5—C6—C14	177.1 (2)	C17—C11—C12—C13	−177.6 (2)
C5—C6—C7—C8	1.1 (4)	C9—N2—C13—C12	−0.8 (4)
C14—C6—C7—C8	−177.1 (2)	Mn1—N2—C13—C12	174.46 (18)
C4—N1—C8—C7	−0.5 (4)	C11—C12—C13—N2	−1.0 (4)
Mn1—N1—C8—C7	178.47 (18)	C15—O5—C14—O4	0.0 (5)
C4—N1—C8—C9	178.3 (2)	C15—O5—C14—C6	177.8 (3)
Mn1—N1—C8—C9	−2.8 (3)	C5—C6—C14—O4	−7.4 (4)
C6—C7—C8—N1	−0.2 (4)	C7—C6—C14—O4	170.8 (3)
C6—C7—C8—C9	−178.8 (2)	C5—C6—C14—O5	174.7 (2)
C13—N2—C9—C10	2.4 (3)	C7—C6—C14—O5	−7.1 (4)
Mn1—N2—C9—C10	−173.32 (18)	C14—O5—C15—C16	156.1 (3)
C13—N2—C9—C8	−177.2 (2)	C18—O7—C17—O6	0.5 (4)
Mn1—N2—C9—C8	7.0 (3)	C18—O7—C17—C11	179.7 (2)
N1—C8—C9—N2	−2.8 (3)	C12—C11—C17—O6	17.2 (4)
C7—C8—C9—N2	175.9 (2)	C10—C11—C17—O6	−161.6 (3)
N1—C8—C9—C10	177.6 (2)	C12—C11—C17—O7	−162.0 (2)
C7—C8—C9—C10	−3.7 (4)	C10—C11—C17—O7	19.2 (3)
N2—C9—C10—C11	−2.1 (4)	C17—O7—C18—C19	176.5 (3)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
C5—H2···Br1ⁱ	0.95	2.90	3.502 (3)	122
C13—H6···Br1ⁱⁱ	0.95	2.78	3.537 (3)	138

Symmetry codes: (i) x+1/2, −y+1/2, z; (ii) x−1/2, −y+1/2, z.

fac-Bromidotricarbonyl(diethyl 2,2'-biquinoline-4,4'-dicarboxylate-κ²N,N')manganese(I) (II) top

Crystal data top

[MnBr(C₂₄H₂₀N₂O₄)(CO)₃]	F(000) = 1248.00
M_r = 619.31	D_x = 1.627 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71075 Å
a = 8.8953 (9) Å	Cell parameters from 9084 reflections
b = 12.0086 (13) Å	θ = 3.0–27.7°
c = 23.790 (3) Å	µ = 2.16 mm⁻¹
β = 95.794 (2)°	T = 93 K
V = 2528.3 (5) Å³	Block, purple
Z = 4	0.20 × 0.08 × 0.05 mm

Data collection top

Rigaku Saturn70 diffractometer	4100 reflections with F² > 2.0σ(F²)
Detector resolution: 7.143 pixels mm^-1	R_int = 0.080
ω scans	θ_max = 27.5°, θ_min = 3.0°
Absorption correction: multi-scan (REQAB; Rigaku, 1998)	h = −11→11
T_min = 0.461, T_max = 0.898	k = −15→15
25401 measured reflections	l = −30→30
5757 independent reflections

Refinement top

Refinement on F²	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.046	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.134	H-atom parameters constrained
S = 1.05	w = 1/[σ²(F_o²) + (0.062P)² + 0.6421P] where P = (F_o² + 2F_c²)/3
5757 reflections	(Δ/σ)_max = 0.001
345 parameters	Δρ_max = 0.79 e Å⁻³
0 restraints	Δρ_min = −1.07 e Å⁻³
Primary atom site location: structure-invariant direct methods

Special details top

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
Br1	0.09534 (4)	0.75013 (2)	0.04399 (2)	0.03365 (12)
Mn1	0.37395 (6)	0.74975 (3)	0.03376 (2)	0.02720 (14)
O1	0.6977 (3)	0.77263 (19)	0.02409 (12)	0.0455 (6)
O2	0.4042 (4)	0.8863 (2)	0.13644 (11)	0.0659 (8)
O3	0.3198 (3)	0.96864 (19)	−0.02110 (11)	0.0478 (6)
O4	−0.0202 (3)	0.4693 (2)	−0.19464 (10)	0.0522 (7)
O5	0.1200 (2)	0.33393 (18)	−0.15029 (8)	0.0358 (5)
O6	0.2414 (4)	0.2443 (2)	0.17911 (12)	0.0616 (9)
O7	0.0767 (3)	0.25994 (16)	0.10327 (10)	0.0372 (5)
N1	0.3222 (3)	0.64858 (19)	−0.03560 (9)	0.0255 (5)
N2	0.3736 (3)	0.59349 (19)	0.07024 (9)	0.0265 (5)
C1	0.5744 (4)	0.7601 (2)	0.02755 (14)	0.0331 (7)
C2	0.3926 (4)	0.8304 (3)	0.09774 (14)	0.0400 (8)
C3	0.3401 (4)	0.8825 (3)	−0.00119 (13)	0.0342 (7)
C4	0.3949 (4)	0.7704 (3)	−0.10815 (15)	0.0380 (8)
H1	0.459451	0.809647	−0.080705	0.046*
C5	0.3815 (4)	0.8050 (3)	−0.16335 (15)	0.0468 (9)
H2	0.437453	0.867719	−0.173866	0.056*
C6	0.2868 (5)	0.7494 (3)	−0.20404 (16)	0.0489 (10)
H3	0.273651	0.777152	−0.241603	0.059*
C7	0.2124 (4)	0.6553 (3)	−0.19061 (13)	0.0417 (8)
H4	0.151309	0.616168	−0.219148	0.050*
C8	0.2262 (3)	0.6154 (3)	−0.13391 (12)	0.0308 (7)
C9	0.3148 (3)	0.6779 (3)	−0.09197 (12)	0.0301 (6)
C10	0.1627 (3)	0.5137 (2)	−0.11728 (11)	0.0283 (6)
C11	0.1841 (3)	0.4822 (2)	−0.06195 (11)	0.0273 (6)
H5	0.146315	0.412652	−0.050550	0.033*
C12	0.2616 (3)	0.5524 (2)	−0.02203 (12)	0.0251 (6)
C13	0.2867 (3)	0.5228 (2)	0.03829 (11)	0.0253 (6)
C14	0.2265 (3)	0.4258 (2)	0.06018 (12)	0.0284 (6)
H6	0.161956	0.379064	0.036264	0.034*
C15	0.2605 (3)	0.3983 (2)	0.11581 (12)	0.0276 (6)
C16	0.3641 (3)	0.4668 (2)	0.15020 (12)	0.0290 (6)
C17	0.4186 (3)	0.5636 (2)	0.12506 (11)	0.0271 (6)
C18	0.4134 (4)	0.4435 (3)	0.20761 (12)	0.0348 (7)
H7	0.373534	0.381128	0.225729	0.042*
C19	0.5173 (4)	0.5101 (3)	0.23671 (13)	0.0392 (8)
H8	0.550979	0.492906	0.274893	0.047*
C20	0.5755 (4)	0.6038 (3)	0.21124 (13)	0.0369 (8)
H9	0.648519	0.649313	0.232167	0.044*
C21	0.5280 (3)	0.6298 (3)	0.15676 (12)	0.0322 (7)
H10	0.568787	0.693090	0.139770	0.039*
C22	0.0748 (3)	0.4380 (3)	−0.15902 (12)	0.0342 (7)
C23	0.0446 (5)	0.2485 (3)	−0.18631 (15)	0.0476 (10)
H11	0.043775	0.269435	−0.226591	0.057*
H12	−0.061144	0.238971	−0.177556	0.057*
C24	0.1315 (5)	0.1432 (3)	−0.17463 (17)	0.0592 (11)
H13	0.081839	0.082438	−0.196838	0.071*
H14	0.135231	0.125364	−0.134315	0.071*
H15	0.234523	0.152836	−0.185052	0.071*
C25	0.1941 (4)	0.2929 (3)	0.13743 (13)	0.0324 (7)
C26	0.0195 (4)	0.1492 (3)	0.11252 (15)	0.0412 (8)
H16	−0.088192	0.144696	0.097417	0.049*
H17	0.026769	0.133367	0.153545	0.049*
C27	0.1078 (5)	0.0658 (3)	0.0841 (2)	0.0663 (12)
H18	0.059641	−0.007362	0.085839	0.080*
H19	0.210688	0.062260	0.103066	0.080*
H20	0.111507	0.087199	0.044501	0.080*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Br1	0.0304 (2)	0.03101 (19)	0.0392 (2)	0.00088 (13)	0.00171 (14)	−0.00383 (12)
Mn1	0.0290 (3)	0.0223 (2)	0.0293 (2)	−0.00015 (18)	−0.0018 (2)	−0.00277 (17)
O1	0.0346 (15)	0.0311 (13)	0.0702 (17)	0.0026 (10)	0.0027 (13)	0.0027 (11)
O2	0.085 (2)	0.0514 (16)	0.0556 (16)	0.0189 (15)	−0.0224 (15)	−0.0289 (13)
O3	0.0572 (16)	0.0252 (12)	0.0606 (15)	0.0045 (11)	0.0037 (13)	0.0056 (11)
O4	0.0465 (15)	0.0670 (18)	0.0383 (12)	0.0050 (13)	−0.0198 (11)	−0.0010 (12)
O5	0.0377 (12)	0.0377 (12)	0.0302 (11)	−0.0082 (10)	−0.0056 (9)	−0.0087 (9)
O6	0.070 (2)	0.0594 (18)	0.0497 (16)	−0.0249 (14)	−0.0218 (15)	0.0294 (12)
O7	0.0397 (14)	0.0282 (12)	0.0418 (13)	−0.0056 (10)	−0.0056 (11)	0.0058 (9)
N1	0.0261 (13)	0.0241 (12)	0.0259 (12)	0.0008 (10)	−0.0002 (10)	−0.0010 (9)
N2	0.0270 (13)	0.0259 (12)	0.0257 (12)	0.0024 (10)	−0.0014 (10)	−0.0011 (10)
C1	0.045 (2)	0.0181 (14)	0.0350 (16)	−0.0033 (13)	−0.0036 (15)	0.0017 (12)
C2	0.0393 (19)	0.0360 (18)	0.0423 (18)	0.0075 (15)	−0.0079 (15)	−0.0064 (15)
C3	0.0329 (17)	0.0296 (16)	0.0394 (17)	−0.0005 (14)	0.0002 (14)	−0.0057 (13)
C4	0.042 (2)	0.0348 (18)	0.0369 (17)	0.0002 (14)	0.0045 (15)	0.0036 (13)
C5	0.055 (2)	0.043 (2)	0.044 (2)	−0.0002 (18)	0.0138 (18)	0.0119 (16)
C6	0.061 (3)	0.051 (2)	0.0350 (18)	0.0026 (19)	0.0100 (18)	0.0139 (16)
C7	0.047 (2)	0.050 (2)	0.0285 (16)	0.0056 (17)	0.0015 (15)	0.0047 (14)
C8	0.0326 (17)	0.0323 (16)	0.0268 (14)	0.0072 (13)	0.0000 (13)	0.0004 (12)
C9	0.0298 (16)	0.0298 (15)	0.0301 (15)	0.0060 (13)	0.0009 (12)	0.0057 (12)
C10	0.0251 (15)	0.0330 (16)	0.0260 (14)	0.0062 (13)	−0.0011 (12)	0.0001 (12)
C11	0.0275 (15)	0.0263 (14)	0.0272 (14)	0.0022 (12)	−0.0022 (12)	0.0001 (12)
C12	0.0259 (15)	0.0248 (14)	0.0240 (13)	0.0029 (12)	−0.0002 (11)	0.0022 (11)
C13	0.0272 (15)	0.0216 (14)	0.0260 (13)	0.0005 (12)	−0.0022 (11)	−0.0018 (11)
C14	0.0311 (16)	0.0259 (14)	0.0267 (14)	0.0003 (13)	−0.0037 (12)	−0.0010 (11)
C15	0.0271 (16)	0.0260 (14)	0.0291 (14)	0.0018 (12)	0.0002 (12)	0.0007 (11)
C16	0.0298 (16)	0.0322 (16)	0.0239 (13)	0.0048 (13)	−0.0027 (12)	−0.0008 (12)
C17	0.0296 (16)	0.0289 (15)	0.0218 (13)	0.0018 (13)	−0.0021 (12)	−0.0022 (11)
C18	0.0425 (19)	0.0378 (17)	0.0236 (14)	0.0040 (15)	0.0002 (13)	0.0015 (12)
C19	0.046 (2)	0.045 (2)	0.0246 (14)	0.0085 (17)	−0.0044 (14)	−0.0025 (14)
C20	0.0384 (18)	0.0401 (18)	0.0300 (16)	0.0040 (15)	−0.0079 (14)	−0.0103 (13)
C21	0.0315 (17)	0.0310 (16)	0.0327 (15)	0.0005 (13)	−0.0025 (13)	−0.0033 (13)
C22	0.0305 (17)	0.0468 (19)	0.0246 (14)	0.0010 (15)	−0.0010 (13)	−0.0032 (13)
C23	0.051 (2)	0.057 (2)	0.0325 (17)	−0.0223 (18)	−0.0034 (17)	−0.0177 (15)
C24	0.075 (3)	0.045 (2)	0.056 (2)	−0.016 (2)	0.000 (2)	−0.0206 (18)
C25	0.0337 (18)	0.0309 (15)	0.0318 (16)	−0.0003 (14)	−0.0003 (13)	0.0052 (13)
C26	0.045 (2)	0.0267 (16)	0.051 (2)	−0.0054 (15)	0.0005 (16)	0.0047 (14)
C27	0.080 (3)	0.0310 (19)	0.091 (3)	0.003 (2)	0.023 (3)	−0.001 (2)

Geometric parameters (Å, º) top

Br1—Mn1	2.5146 (6)	C10—C22	1.506 (4)
Mn1—C2	1.798 (3)	C11—C12	1.398 (4)
Mn1—C1	1.809 (4)	C11—H5	0.9500
Mn1—C3	1.809 (3)	C12—C13	1.473 (4)
Mn1—N1	2.063 (2)	C13—C14	1.404 (4)
Mn1—N2	2.068 (2)	C14—C15	1.368 (4)
O1—C1	1.118 (4)	C14—H6	0.9500
O2—C2	1.135 (4)	C15—C16	1.429 (4)
O3—C3	1.144 (4)	C15—C25	1.508 (4)
O4—C22	1.195 (4)	C16—C17	1.416 (4)
O5—C22	1.323 (4)	C16—C18	1.419 (4)
O5—C23	1.457 (4)	C17—C21	1.414 (4)
O6—C25	1.190 (4)	C18—C19	1.358 (4)
O7—C25	1.318 (4)	C18—H7	0.9500
O7—C26	1.449 (4)	C19—C20	1.402 (5)
N1—C12	1.328 (4)	C19—H8	0.9500
N1—C9	1.382 (4)	C20—C21	1.358 (4)
N2—C13	1.333 (3)	C20—H9	0.9500
N2—C17	1.373 (3)	C21—H10	0.9500
C4—C5	1.371 (5)	C23—C24	1.493 (5)
C4—C9	1.394 (4)	C23—H11	0.9900
C4—H1	0.9500	C23—H12	0.9900
C5—C6	1.389 (6)	C24—H13	0.9800
C5—H2	0.9500	C24—H14	0.9800
C6—C7	1.363 (5)	C24—H15	0.9800
C6—H3	0.9500	C26—C27	1.478 (5)
C7—C8	1.425 (4)	C26—H16	0.9900
C7—H4	0.9500	C26—H17	0.9900
C8—C10	1.418 (4)	C27—H18	0.9800
C8—C9	1.422 (4)	C27—H19	0.9800
C10—C11	1.364 (4)	C27—H20	0.9800

C2—Mn1—C1	91.40 (15)	C14—C13—C12	122.4 (2)
C2—Mn1—C3	84.91 (15)	C15—C14—C13	120.3 (3)
C1—Mn1—C3	91.23 (14)	C15—C14—H6	119.9
C2—Mn1—N1	171.30 (13)	C13—C14—H6	119.9
C1—Mn1—N1	96.74 (12)	C14—C15—C16	118.8 (3)
C3—Mn1—N1	97.94 (11)	C14—C15—C25	118.5 (3)
C2—Mn1—N2	97.89 (12)	C16—C15—C25	122.6 (3)
C1—Mn1—N2	98.04 (11)	C17—C16—C18	118.9 (3)
C3—Mn1—N2	170.22 (12)	C17—C16—C15	117.3 (2)
N1—Mn1—N2	77.97 (9)	C18—C16—C15	123.8 (3)
C2—Mn1—Br1	85.68 (11)	N2—C17—C21	118.6 (3)
C1—Mn1—Br1	175.86 (9)	N2—C17—C16	122.5 (3)
C3—Mn1—Br1	85.59 (10)	C21—C17—C16	118.9 (3)
N1—Mn1—Br1	86.34 (7)	C19—C18—C16	120.2 (3)
N2—Mn1—Br1	85.29 (7)	C19—C18—H7	119.9
C22—O5—C23	117.3 (3)	C16—C18—H7	119.9
C25—O7—C26	116.8 (2)	C18—C19—C20	121.0 (3)
C12—N1—C9	118.5 (2)	C18—C19—H8	119.5
C12—N1—Mn1	112.39 (18)	C20—C19—H8	119.5
C9—N1—Mn1	127.65 (19)	C21—C20—C19	120.2 (3)
C13—N2—C17	118.1 (2)	C21—C20—H9	119.9
C13—N2—Mn1	111.33 (18)	C19—C20—H9	119.9
C17—N2—Mn1	128.58 (19)	C20—C21—C17	120.7 (3)
O1—C1—Mn1	176.2 (3)	C20—C21—H10	119.6
O2—C2—Mn1	176.4 (3)	C17—C21—H10	119.6
O3—C3—Mn1	177.1 (3)	O4—C22—O5	126.2 (3)
C5—C4—C9	120.6 (3)	O4—C22—C10	124.1 (3)
C5—C4—H1	119.7	O5—C22—C10	109.7 (2)
C9—C4—H1	119.7	O5—C23—C24	106.7 (3)
C4—C5—C6	120.6 (3)	O5—C23—H11	110.4
C4—C5—H2	119.7	C24—C23—H11	110.4
C6—C5—H2	119.7	O5—C23—H12	110.4
C7—C6—C5	120.7 (3)	C24—C23—H12	110.4
C7—C6—H3	119.7	H11—C23—H12	108.6
C5—C6—H3	119.7	C23—C24—H13	109.5
C6—C7—C8	120.2 (3)	C23—C24—H14	109.5
C6—C7—H4	119.9	H13—C24—H14	109.5
C8—C7—H4	119.9	C23—C24—H15	109.5
C10—C8—C9	117.9 (3)	H13—C24—H15	109.5
C10—C8—C7	123.7 (3)	H14—C24—H15	109.5
C9—C8—C7	118.4 (3)	O6—C25—O7	123.9 (3)
N1—C9—C4	119.7 (3)	O6—C25—C15	125.3 (3)
N1—C9—C8	121.0 (3)	O7—C25—C15	110.8 (2)
C4—C9—C8	119.3 (3)	O7—C26—C27	110.0 (3)
C11—C10—C8	119.2 (3)	O7—C26—H16	109.7
C11—C10—C22	118.8 (3)	C27—C26—H16	109.7
C8—C10—C22	122.1 (3)	O7—C26—H17	109.7
C10—C11—C12	119.9 (3)	C27—C26—H17	109.7
C10—C11—H5	120.0	H16—C26—H17	108.2
C12—C11—H5	120.0	C26—C27—H18	109.5
N1—C12—C11	122.9 (3)	C26—C27—H19	109.5
N1—C12—C13	114.9 (2)	H18—C27—H19	109.5
C11—C12—C13	122.1 (3)	C26—C27—H20	109.5
N2—C13—C14	122.5 (3)	H18—C27—H20	109.5
N2—C13—C12	115.1 (2)	H19—C27—H20	109.5

C9—C4—C5—C6	0.6 (6)	C12—C13—C14—C15	176.0 (3)
C4—C5—C6—C7	−4.0 (6)	C13—C14—C15—C16	−3.2 (4)
C5—C6—C7—C8	2.6 (6)	C13—C14—C15—C25	−179.7 (3)
C6—C7—C8—C10	−174.7 (3)	C14—C15—C16—C17	3.7 (4)
C6—C7—C8—C9	2.0 (5)	C25—C15—C16—C17	180.0 (3)
C12—N1—C9—C4	−171.2 (3)	C14—C15—C16—C18	−176.8 (3)
Mn1—N1—C9—C4	23.8 (4)	C25—C15—C16—C18	−0.5 (5)
C12—N1—C9—C8	8.9 (4)	C13—N2—C17—C21	170.9 (3)
Mn1—N1—C9—C8	−156.1 (2)	Mn1—N2—C17—C21	−26.4 (4)
C5—C4—C9—N1	−175.8 (3)	C13—N2—C17—C16	−6.5 (4)
C5—C4—C9—C8	4.1 (5)	Mn1—N2—C17—C16	156.1 (2)
C10—C8—C9—N1	−8.5 (4)	C18—C16—C17—N2	−178.4 (3)
C7—C8—C9—N1	174.6 (3)	C15—C16—C17—N2	1.1 (4)
C10—C8—C9—C4	171.6 (3)	C18—C16—C17—C21	4.2 (4)
C7—C8—C9—C4	−5.3 (4)	C15—C16—C17—C21	−176.3 (3)
C9—C8—C10—C11	2.4 (4)	C17—C16—C18—C19	−3.5 (4)
C7—C8—C10—C11	179.1 (3)	C15—C16—C18—C19	177.0 (3)
C9—C8—C10—C22	−176.4 (3)	C16—C18—C19—C20	1.2 (5)
C7—C8—C10—C22	0.3 (5)	C18—C19—C20—C21	0.3 (5)
C8—C10—C11—C12	3.0 (4)	C19—C20—C21—C17	0.5 (5)
C22—C10—C11—C12	−178.2 (3)	N2—C17—C21—C20	179.7 (3)
C9—N1—C12—C11	−3.3 (4)	C16—C17—C21—C20	−2.8 (4)
Mn1—N1—C12—C11	163.9 (2)	C23—O5—C22—O4	−1.8 (5)
C9—N1—C12—C13	174.6 (2)	C23—O5—C22—C10	178.8 (3)
Mn1—N1—C12—C13	−18.2 (3)	C11—C10—C22—O4	135.9 (3)
C10—C11—C12—N1	−2.7 (4)	C8—C10—C22—O4	−45.3 (5)
C10—C11—C12—C13	179.5 (3)	C11—C10—C22—O5	−44.7 (4)
C17—N2—C13—C14	7.2 (4)	C8—C10—C22—O5	134.1 (3)
Mn1—N2—C13—C14	−158.3 (2)	C22—O5—C23—C24	171.0 (3)
C17—N2—C13—C12	−171.3 (2)	C26—O7—C25—O6	−10.5 (5)
Mn1—N2—C13—C12	23.2 (3)	C26—O7—C25—C15	168.4 (3)
N1—C12—C13—N2	−3.5 (4)	C14—C15—C25—O6	159.9 (4)
C11—C12—C13—N2	174.4 (3)	C16—C15—C25—O6	−16.4 (5)
N1—C12—C13—C14	178.0 (3)	C14—C15—C25—O7	−18.9 (4)
C11—C12—C13—C14	−4.1 (4)	C16—C15—C25—O7	164.7 (3)
N2—C13—C14—C15	−2.4 (4)	C25—O7—C26—C27	−83.7 (4)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
C7—H4···O4	0.95	2.44	3.040 (4)	121
C11—H5···Br1ⁱ	0.95	2.92	3.789 (3)	153
C14—H6···O7	0.95	2.33	2.659 (3)	100
C18—H7···O6	0.95	2.25	2.883 (5)	124
C19—H8···O2ⁱⁱ	0.95	2.47	3.373 (4)	160
C20—H9···O6ⁱⁱⁱ	0.95	2.51	3.383 (4)	153

Symmetry codes: (i) −x, −y+1, −z; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, y+1/2, −z+1/2.

Funding information

Funding for this research was provided by: Japan Society for the Promotion of Science (grant No. JP17K05799).

References

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Volume 76| Part 9| September 2020| Pages 1433-1436

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research communications\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-di­imine ligands

1. Chemical context

2. Structural commentary

3. Supra­molecular features

4. Database survey

5. Synthesis and crystallization

6. Refinement

Supporting information

Funding information

References

research communications

Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-diimine ligands

3. Supramolecular features