metal-organic compounds
Bis{μ2-2-[(2-hydroxyethyl)(methyl)amino]ethanolato}bis(μ3-N-methyl-2,2′-azanediyldiethanolato)tetrakis(thiocyanatato-κN)dichromium(III)dimanganese(II) dimethylformamide tetrasolvate
aDepartment of Inorganic Chemistry,Taras Shevchenko National University of Kyiv, Volodymyrs'ka St. 64, Kyiv 01601, Ukraine, and bSTC "Institute for Single Crystals" National Academy of Sciences of Ukraine, 60, Lenina Avenue, Kharkiv 61001, Ukraine
*Correspondence e-mail: valya.semenaka@gmail.com
The heterometallic title complex, [Cr2Mn2(C5H11NO2)2(C5H12NO2)2(NCS)4]·4C3H7NO, was prepared using manganese powder, Reineckes salt, ammonium thiocyanate and a non-aqueous solution of N-methyldiethanolamine in air. The centrosymmetric molecular structure of the complex is based on a tetranuclear {Mn2Cr2(μ-O)6} core. The tetranuclear complex molecule and the two uncoordinated dimethylformamide molecules are linked by O—H⋯O hydrogen bonds, while the two other molecules of dimethylformamide do not participate in hydrogen bonding.
Related literature
For background to polynuclear chromium-containing complexes, see: McInnes et al. (2005); Affronte et al. (2005). For the use of amino alcohols with versatile bridging modes in generating such metal clusters, see: Langley et al. (2009); Ferguson et al. (2008); Saalfrank et al. (2001). For background to direct synthesis, see: Kokozay & Shevchenko (2005).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811049336/zk2033sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811049336/zk2033Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811049336/zk2033Isup3.cdx
Manganese powder (0.137 g, 2.5 mmol), NH4[Cr(NCS)4(NH3)2].H2O (0.221 g, 0.625 mmol), NH4NCS (0.333 g, 4.375 mmol), dmf (20 mL) and N-methyldiethanolamine (0.80 cm3) were heated to 50–60° and stirred magnetically during 2 h. Dark blue crystals suitable for the X-ray crystallographic study were deposited after several months after addition of diethyl ether and PriOH into the resulting blue solution. The crystals were filtered off, washed with dry PriOH, and finally dried at room temperature. Yield: 0.09 g, 24% (per chromium). Anal. Calc. for C36H74Mn2Cr2N12O12S4 (M = 1208.64): Mn, 9.09; Cr, 8.60; C, 35.78; H, 6.12; N, 13.91; S, 10.61. Found: Mn, 9.1; Cr, 8.8; C, 35.8; H, 6.2; N, 13.8; S, 10.7. IR: 2889(m), 2867(sh), 2818(sh), 2080(vs), 1660(s), 1458(w), 1449(sh), 1410(sh), 1383(m), 1355(w), 1308(w), 1260(sh), 1253(w), 1207(sh), 1171(sh), 1143(sh), 1075(s), 1032(sh), 1002(sh), 980(sh), 913(m), 764(sh), 744(m), 676(m), 643(sh), 545(m), 517(m), 474(w), 419(sh), 412(w). The compound is sparingly soluble in dmso and dmf, insoluble in water and it is indefinitely stable in air.
All non-hydrogen atoms were located from the initial solution and refined with anisotropic thermal parameters. The hydrogen atoms were positioned geometrically and included into
using riding model approximation with Uiso=nUeq of non-hydrogen (n = 1.5 for CH3 and OH groups and n = 1.2 for remaining H-atoms)Great interest in the synthesis and investigation of polynuclear chromium- and manganese-containing compounds dates from the late 90 s mostly due to the works R.E.P. Winpenny and coworkers devoted to magnetic studies of high-nuclear cages and wheels (McInnes et al., 2005; Affronte et al., 2005). At the same time, the potential of
and amino in generating such metal clusters was widely explored (Saalfrank et al., 2001; Langley et al., 2009; Ferguson et al., 2008).The polydentate alkoxo ligands possessing versatile bridging modes were recognized as promising reagents for synthesis of new heterometallic complexes. Previously we have demonstrated that amino represent a powerful tool for assembling polynuclear metal complexes in conditions of the synthetic approach named "direct synthesis of coordination compounds". This strategy employs metal powders or metal oxides as starting materials and eliminates the separate step of building block construction, proving to be an efficient route to obtain new heterometallic complexes (Kokozay & Shevchenko, 2005). Novel heterometallic compound [Mn2Cr2(NCS)4(HMeDea)2(MeDea)2].4dmf have been prepared in one-step self-assembly reaction of zerovalent manganese, Reineckes salt, ammonium thiocyanate and dymethylformamide (dmf) solution of N-methyldiethanolamine (H2MeDea) in air using molar ratio Mn0:NH4[Cr(NCS)4(NH3)2].H2O = 4: 1. X-ray diffraction studies reveal that the centrosymmetric molecular structure of the complex is based on a tetranuclear {Mn2Cr2(µ-O)6} core with the metal atoms arranged in a planar rhombic array. In the present complex MeDea and HMeDea ligands adopt a chelating-bridging mode forming five-membered rings. Both manganese(II) ions are five coordinated and have N2O3 donor sets (Fig. 1) formed by three oxygen and one nitrogen atom of N-methyldiethanolamine ligands and one nitrogen atom of terminal thiocyanate group. The Mn–O(N) bond lengths vary in the range 2.0651 (10)–2.3004 (13) Å, while cis and trans O(N)–Mn–O(N) bond angles range from 65.28 (6)° to 124.35 (14)° and from 140.06 (9)° to 173.0 (3)°, respectively. Each chromium(III) atom has distorted octahedral environment comprised by four oxygen and one nitrogen atoms from N-methyldiethanolamine ligands and one nitrogen atom from terminal thiocyanate group. The Cr–O(N) distances are in the range of 1.9391 (10)–2.0974 (14) Å. The cis and trans O(N)–Cr–O(N) bond angles vary from 80.70 (5)° to 101.65 (5)° and from 158.59 (5)° to 177.32 (5)°, respectively. Tetranuclear molecule of the complex and two dmf molecules are linked together by O–H···O hydrogen bonds [O(3)–H(3)···O(5): D–A = 2.598 Å, D–H···A = 175.99°], two other uncoordinated molecules of dmf are not involved in hydrogen bonding.For background to polynuclear chromium-containing complexes, see: McInnes et al. (2005); Affronte et al. (2005). For the use of aminoalcohols having versatile bridging modes in generating such metal clusters, see: Langley et al. (2009); Ferguson et al. (2008); Saalfrank et al. (2001). For background to direct synthesis, see: Kokozay & Shevchenko (2005).
Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell
CrysAlis PRO (Oxford Diffraction, 2010); data reduction: ABSPACK in CrysAlis PRO (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: CrysAlis PRO (Oxford Diffraction, 2010); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. Molecular structure of the complex, showing the atom numbering, with 50% probability displacement ellipsoids |
[Cr2Mn2(C5H11NO2)2(C5H12NO2)2(NCS)4]·4C3H7NO | Z = 2 |
Mr = 1208.64 | F(000) = 1264 |
Monoclinic, P21/n | Dx = 1.443 Mg m−3 |
a = 11.5207 (2) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 13.5261 (2) Å | µ = 1.04 mm−1 |
c = 18.5825 (4) Å | T = 100 K |
β = 106.123 (2)° | Block, dark blue |
V = 2781.81 (9) Å3 | 0.3 × 0.2 × 0.1 mm |
Oxford Diffraction Xcalibur Sapphire3 diffractometer | 5070 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
ω scans | θmax = 30°, θmin = 2.9° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2008) | h = −12→16 |
Tmin = 0.6, Tmax = 0.8 | k = −16→19 |
14864 measured reflections | l = −26→12 |
8065 independent reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.048 | H-atom parameters constrained |
S = 0.98 | w = 1/[σ2(Fo2) + (0.010P)2] where P = (Fo2 + 2Fc2)/3 |
8065 reflections | (Δ/σ)max = 0.002 |
313 parameters | Δρmax = 0.43 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
[Cr2Mn2(C5H11NO2)2(C5H12NO2)2(NCS)4]·4C3H7NO | V = 2781.81 (9) Å3 |
Mr = 1208.64 | Z = 2 |
Monoclinic, P21/n | Mo Kα radiation |
a = 11.5207 (2) Å | µ = 1.04 mm−1 |
b = 13.5261 (2) Å | T = 100 K |
c = 18.5825 (4) Å | 0.3 × 0.2 × 0.1 mm |
β = 106.123 (2)° |
Oxford Diffraction Xcalibur Sapphire3 diffractometer | 8065 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2008) | 5070 reflections with I > 2σ(I) |
Tmin = 0.6, Tmax = 0.8 | Rint = 0.025 |
14864 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.048 | H-atom parameters constrained |
S = 0.98 | Δρmax = 0.43 e Å−3 |
8065 reflections | Δρmin = −0.38 e Å−3 |
313 parameters |
Experimental. CrysAlis RED, Oxford Diffraction Ltd., Version 1.171.32.24 (release 21-04-2008 CrysAlis171 .NET) (compiled Apr 21 2008,18:23:10) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
Mn1 | 0.50236 (2) | 0.224755 (17) | 0.513287 (14) | 0.01778 (6) | |
Cr1 | 0.38351 (2) | −0.005009 (19) | 0.523254 (14) | 0.01505 (6) | |
S1 | 0.16877 (4) | −0.10240 (4) | 0.69652 (3) | 0.04214 (14) | |
S2 | 0.25156 (4) | 0.38492 (3) | 0.28877 (2) | 0.02974 (11) | |
O1 | 0.44591 (9) | 0.05372 (7) | 0.44303 (6) | 0.0156 (2) | |
O2 | 0.41428 (9) | 0.12490 (7) | 0.56870 (6) | 0.0181 (2) | |
O3 | 0.62650 (11) | 0.35388 (8) | 0.52249 (7) | 0.0325 (3) | |
H3 | 0.6726 | 0.3704 | 0.4981 | 0.049* | |
O4 | 0.34983 (9) | −0.13296 (7) | 0.47288 (6) | 0.0181 (2) | |
O5 | 0.77327 (11) | 0.41465 (9) | 0.44798 (7) | 0.0340 (3) | |
O6 | 0.56001 (11) | 0.24649 (9) | 0.10559 (7) | 0.0342 (3) | |
N1 | 0.48650 (11) | 0.31521 (9) | 0.61496 (7) | 0.0197 (3) | |
N2 | 0.21359 (11) | 0.02768 (9) | 0.45005 (7) | 0.0189 (3) | |
N3 | 0.31690 (12) | −0.05439 (10) | 0.60560 (8) | 0.0218 (3) | |
N4 | 0.38177 (13) | 0.28738 (10) | 0.41875 (8) | 0.0270 (3) | |
N5 | 0.95472 (13) | 0.40818 (10) | 0.42324 (8) | 0.0271 (4) | |
N6 | 0.55036 (12) | 0.27485 (11) | 0.22479 (8) | 0.0262 (3) | |
C1 | 0.38489 (15) | 0.16079 (12) | 0.63305 (9) | 0.0242 (4) | |
H1A | 0.3877 | 0.1059 | 0.6688 | 0.029* | |
H1B | 0.302 | 0.1882 | 0.6186 | 0.029* | |
C2 | 0.47414 (15) | 0.24061 (12) | 0.66996 (9) | 0.0234 (4) | |
H2A | 0.4462 | 0.2729 | 0.7099 | 0.028* | |
H2B | 0.5539 | 0.2102 | 0.6933 | 0.028* | |
C3 | 0.59968 (16) | 0.37190 (14) | 0.64366 (10) | 0.0316 (4) | |
H3A | 0.6658 | 0.3265 | 0.6689 | 0.038* | |
H3B | 0.5894 | 0.421 | 0.6809 | 0.038* | |
C4 | 0.63246 (17) | 0.42432 (13) | 0.58016 (10) | 0.0333 (5) | |
H4A | 0.5753 | 0.4792 | 0.5611 | 0.04* | |
H4B | 0.715 | 0.4521 | 0.5978 | 0.04* | |
C5 | 0.38177 (16) | 0.38211 (13) | 0.59616 (10) | 0.0347 (5) | |
H5A | 0.38 | 0.4204 | 0.6406 | 0.052* | |
H5B | 0.3074 | 0.3433 | 0.5792 | 0.052* | |
H5C | 0.3882 | 0.4272 | 0.5562 | 0.052* | |
C6 | 0.23263 (14) | −0.14850 (12) | 0.42388 (9) | 0.0212 (4) | |
H6A | 0.2025 | −0.2145 | 0.4331 | 0.025* | |
H6B | 0.2358 | −0.146 | 0.3712 | 0.025* | |
C7 | 0.14866 (14) | −0.06917 (11) | 0.43730 (10) | 0.0226 (4) | |
H7A | 0.0769 | −0.0642 | 0.3934 | 0.027* | |
H7B | 0.1209 | −0.0865 | 0.4816 | 0.027* | |
C8 | 0.23655 (14) | 0.06676 (12) | 0.37959 (9) | 0.0227 (4) | |
H8A | 0.2299 | 0.1397 | 0.3791 | 0.027* | |
H8B | 0.1737 | 0.041 | 0.3358 | 0.027* | |
C9 | 0.35990 (13) | 0.03810 (12) | 0.37239 (9) | 0.0200 (4) | |
H9A | 0.36 | −0.0322 | 0.3577 | 0.024* | |
H9B | 0.3806 | 0.079 | 0.3335 | 0.024* | |
C10 | 0.14028 (14) | 0.09998 (13) | 0.47868 (10) | 0.0282 (4) | |
H10A | 0.0638 | 0.1119 | 0.4403 | 0.042* | |
H10B | 0.1849 | 0.1623 | 0.4907 | 0.042* | |
H10C | 0.1237 | 0.0736 | 0.5239 | 0.042* | |
C11 | 0.25484 (15) | −0.07453 (12) | 0.64353 (9) | 0.0217 (4) | |
C12 | 0.32760 (15) | 0.32850 (12) | 0.36446 (9) | 0.0208 (4) | |
C13 | 0.87761 (16) | 0.38143 (13) | 0.46022 (10) | 0.0280 (4) | |
H13A | 0.9033 | 0.3336 | 0.4988 | 0.034* | |
C14 | 1.07644 (16) | 0.36743 (15) | 0.44205 (12) | 0.0428 (5) | |
H14A | 1.0877 | 0.3222 | 0.4846 | 0.064* | |
H14B | 1.1354 | 0.4213 | 0.4554 | 0.064* | |
H14C | 1.0881 | 0.3314 | 0.3988 | 0.064* | |
C15 | 0.92280 (18) | 0.48139 (15) | 0.36406 (12) | 0.0452 (6) | |
H15A | 0.8354 | 0.4931 | 0.3504 | 0.068* | |
H15B | 0.9458 | 0.4573 | 0.3202 | 0.068* | |
H15C | 0.9656 | 0.5433 | 0.3816 | 0.068* | |
C16 | 0.59011 (15) | 0.29153 (13) | 0.16508 (10) | 0.0283 (4) | |
H16A | 0.6473 | 0.3433 | 0.169 | 0.034* | |
C17 | 0.46767 (16) | 0.19439 (13) | 0.22546 (10) | 0.0310 (4) | |
H17A | 0.4335 | 0.1699 | 0.1743 | 0.047* | |
H17B | 0.4024 | 0.2181 | 0.2454 | 0.047* | |
H17C | 0.5112 | 0.1408 | 0.2572 | 0.047* | |
C18 | 0.59935 (17) | 0.32815 (15) | 0.29436 (11) | 0.0434 (5) | |
H18A | 0.6562 | 0.3785 | 0.2872 | 0.065* | |
H18B | 0.6415 | 0.2818 | 0.3335 | 0.065* | |
H18C | 0.5334 | 0.3601 | 0.3094 | 0.065* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.02102 (13) | 0.01665 (12) | 0.01768 (13) | −0.00053 (12) | 0.00874 (10) | −0.00076 (11) |
Cr1 | 0.01441 (12) | 0.01699 (13) | 0.01527 (13) | −0.00159 (12) | 0.00662 (10) | −0.00100 (11) |
S1 | 0.0342 (3) | 0.0666 (4) | 0.0332 (3) | −0.0060 (3) | 0.0221 (2) | 0.0104 (3) |
S2 | 0.0363 (3) | 0.0302 (3) | 0.0181 (2) | −0.0017 (2) | −0.00015 (19) | 0.0021 (2) |
O1 | 0.0148 (6) | 0.0195 (6) | 0.0124 (6) | −0.0011 (5) | 0.0040 (4) | 0.0002 (5) |
O2 | 0.0213 (6) | 0.0202 (6) | 0.0160 (6) | −0.0023 (5) | 0.0106 (5) | −0.0040 (5) |
O3 | 0.0441 (8) | 0.0250 (7) | 0.0377 (8) | −0.0126 (6) | 0.0269 (7) | −0.0112 (6) |
O4 | 0.0160 (6) | 0.0192 (6) | 0.0191 (6) | −0.0028 (5) | 0.0049 (5) | −0.0033 (5) |
O5 | 0.0265 (7) | 0.0378 (8) | 0.0414 (8) | 0.0010 (6) | 0.0158 (6) | 0.0019 (7) |
O6 | 0.0396 (8) | 0.0382 (8) | 0.0284 (7) | 0.0000 (6) | 0.0153 (6) | −0.0026 (6) |
N1 | 0.0210 (8) | 0.0180 (7) | 0.0205 (7) | 0.0010 (6) | 0.0065 (6) | −0.0007 (6) |
N2 | 0.0151 (7) | 0.0205 (7) | 0.0218 (8) | −0.0003 (6) | 0.0066 (6) | −0.0022 (6) |
N3 | 0.0243 (8) | 0.0235 (8) | 0.0202 (8) | −0.0041 (7) | 0.0108 (6) | −0.0015 (6) |
N4 | 0.0353 (9) | 0.0211 (8) | 0.0254 (8) | 0.0013 (7) | 0.0098 (7) | 0.0021 (7) |
N5 | 0.0265 (8) | 0.0276 (8) | 0.0304 (9) | 0.0025 (7) | 0.0131 (7) | 0.0070 (7) |
N6 | 0.0246 (8) | 0.0296 (8) | 0.0253 (8) | 0.0001 (7) | 0.0086 (6) | −0.0018 (7) |
C1 | 0.0336 (10) | 0.0234 (9) | 0.0217 (9) | −0.0031 (8) | 0.0176 (8) | −0.0055 (8) |
C2 | 0.0302 (10) | 0.0244 (9) | 0.0167 (9) | 0.0027 (8) | 0.0086 (7) | −0.0029 (7) |
C3 | 0.0352 (11) | 0.0326 (10) | 0.0270 (10) | −0.0097 (9) | 0.0087 (8) | −0.0085 (9) |
C4 | 0.0452 (12) | 0.0240 (10) | 0.0362 (12) | −0.0136 (9) | 0.0204 (10) | −0.0102 (9) |
C5 | 0.0431 (12) | 0.0319 (11) | 0.0299 (11) | 0.0153 (10) | 0.0117 (9) | 0.0025 (9) |
C6 | 0.0199 (9) | 0.0221 (9) | 0.0213 (9) | −0.0064 (8) | 0.0050 (7) | −0.0028 (8) |
C7 | 0.0160 (9) | 0.0265 (9) | 0.0254 (10) | −0.0052 (8) | 0.0059 (7) | −0.0030 (8) |
C8 | 0.0206 (9) | 0.0239 (9) | 0.0206 (9) | −0.0017 (8) | 0.0006 (7) | 0.0026 (8) |
C9 | 0.0202 (9) | 0.0249 (9) | 0.0139 (8) | −0.0039 (7) | 0.0031 (7) | 0.0016 (7) |
C10 | 0.0190 (9) | 0.0316 (10) | 0.0338 (11) | 0.0051 (8) | 0.0066 (8) | −0.0047 (9) |
C11 | 0.0222 (9) | 0.0235 (9) | 0.0182 (9) | −0.0029 (8) | 0.0038 (7) | 0.0016 (7) |
C12 | 0.0257 (10) | 0.0178 (9) | 0.0213 (9) | −0.0037 (8) | 0.0105 (8) | −0.0031 (8) |
C13 | 0.0320 (11) | 0.0252 (10) | 0.0284 (10) | −0.0016 (9) | 0.0108 (8) | −0.0002 (8) |
C14 | 0.0319 (12) | 0.0445 (13) | 0.0566 (15) | 0.0105 (10) | 0.0198 (10) | 0.0128 (11) |
C15 | 0.0407 (12) | 0.0525 (14) | 0.0455 (14) | 0.0039 (11) | 0.0173 (10) | 0.0217 (11) |
C16 | 0.0232 (10) | 0.0303 (11) | 0.0354 (11) | 0.0013 (8) | 0.0151 (8) | 0.0000 (9) |
C17 | 0.0341 (11) | 0.0305 (10) | 0.0316 (11) | 0.0012 (9) | 0.0143 (9) | 0.0048 (9) |
C18 | 0.0436 (13) | 0.0519 (14) | 0.0351 (12) | −0.0069 (11) | 0.0119 (10) | −0.0138 (11) |
Mn1—O4i | 2.0651 (10) | C1—H1B | 0.99 |
Mn1—N4 | 2.0923 (15) | C2—H2A | 0.99 |
Mn1—O2 | 2.1199 (10) | C2—H2B | 0.99 |
Mn1—O3 | 2.2337 (11) | C3—C4 | 1.512 (2) |
Mn1—N1 | 2.3004 (13) | C3—H3A | 0.99 |
Cr1—O2 | 1.9391 (10) | C3—H3B | 0.99 |
Cr1—O4 | 1.9546 (10) | C4—H4A | 0.99 |
Cr1—O1 | 1.9914 (10) | C4—H4B | 0.99 |
Cr1—O1i | 2.0013 (10) | C5—H5A | 0.98 |
Cr1—N3 | 2.0071 (13) | C5—H5B | 0.98 |
Cr1—N2 | 2.0974 (14) | C5—H5C | 0.98 |
Cr1—Cr1i | 3.0428 (4) | C6—C7 | 1.511 (2) |
S1—C11 | 1.6240 (16) | C6—H6A | 0.99 |
S2—C12 | 1.6260 (18) | C6—H6B | 0.99 |
O1—C9 | 1.4238 (18) | C7—H7A | 0.99 |
O1—Cr1i | 2.0013 (10) | C7—H7B | 0.99 |
O2—C1 | 1.4161 (16) | C8—C9 | 1.514 (2) |
O3—C4 | 1.4212 (19) | C8—H8A | 0.99 |
O3—H3 | 0.8197 | C8—H8B | 0.99 |
O4—C6 | 1.4189 (18) | C9—H9A | 0.99 |
O4—Mn1i | 2.0651 (10) | C9—H9B | 0.99 |
O5—C13 | 1.2437 (18) | C10—H10A | 0.98 |
O6—C16 | 1.225 (2) | C10—H10B | 0.98 |
N1—C5 | 1.470 (2) | C10—H10C | 0.98 |
N1—C2 | 1.4710 (19) | C13—H13A | 0.95 |
N1—C3 | 1.479 (2) | C14—H14A | 0.98 |
N2—C10 | 1.4841 (18) | C14—H14B | 0.98 |
N2—C7 | 1.4944 (19) | C14—H14C | 0.98 |
N2—C8 | 1.5021 (19) | C15—H15A | 0.98 |
N3—C11 | 1.1671 (17) | C15—H15B | 0.98 |
N4—C12 | 1.169 (2) | C15—H15C | 0.98 |
N5—C13 | 1.3159 (19) | C16—H16A | 0.95 |
N5—C15 | 1.449 (2) | C17—H17A | 0.98 |
N5—C14 | 1.456 (2) | C17—H17B | 0.98 |
N6—C16 | 1.332 (2) | C17—H17C | 0.98 |
N6—C17 | 1.449 (2) | C18—H18A | 0.98 |
N6—C18 | 1.451 (2) | C18—H18B | 0.98 |
C1—C2 | 1.517 (2) | C18—H18C | 0.98 |
C1—H1A | 0.99 | ||
O4i—Mn1—N4 | 132.86 (5) | N1—C3—H3B | 109.6 |
O4i—Mn1—O2 | 92.63 (4) | C4—C3—H3B | 109.6 |
N4—Mn1—O2 | 111.71 (5) | H3A—C3—H3B | 108.1 |
O4i—Mn1—O3 | 88.41 (4) | O3—C4—C3 | 107.69 (13) |
N4—Mn1—O3 | 90.54 (5) | O3—C4—H4A | 110.2 |
O2—Mn1—O3 | 147.52 (4) | C3—C4—H4A | 110.2 |
O4i—Mn1—N1 | 117.93 (5) | O3—C4—H4B | 110.2 |
N4—Mn1—N1 | 106.77 (5) | C3—C4—H4B | 110.2 |
O2—Mn1—N1 | 77.41 (4) | H4A—C4—H4B | 108.5 |
O3—Mn1—N1 | 73.53 (4) | N1—C5—H5A | 109.5 |
O2—Cr1—O4 | 177.32 (5) | N1—C5—H5B | 109.5 |
O2—Cr1—O1 | 84.50 (4) | H5A—C5—H5B | 109.5 |
O4—Cr1—O1 | 93.42 (4) | N1—C5—H5C | 109.5 |
O2—Cr1—O1i | 96.72 (4) | H5A—C5—H5C | 109.5 |
O4—Cr1—O1i | 84.58 (4) | H5B—C5—H5C | 109.5 |
O1—Cr1—O1i | 80.70 (5) | O4—C6—C7 | 109.13 (13) |
O2—Cr1—N3 | 91.83 (5) | O4—C6—H6A | 109.9 |
O4—Cr1—N3 | 90.19 (5) | C7—C6—H6A | 109.9 |
O1—Cr1—N3 | 175.88 (5) | O4—C6—H6B | 109.9 |
O1i—Cr1—N3 | 101.65 (5) | C7—C6—H6B | 109.9 |
O2—Cr1—N2 | 96.68 (5) | H6A—C6—H6B | 108.3 |
O4—Cr1—N2 | 81.41 (5) | N2—C7—C6 | 109.47 (12) |
O1—Cr1—N2 | 84.05 (4) | N2—C7—H7A | 109.8 |
O1i—Cr1—N2 | 158.59 (5) | C6—C7—H7A | 109.8 |
N3—Cr1—N2 | 94.53 (5) | N2—C7—H7B | 109.8 |
O2—Cr1—Cr1i | 90.82 (3) | C6—C7—H7B | 109.8 |
O4—Cr1—Cr1i | 88.67 (3) | H7A—C7—H7B | 108.2 |
O1—Cr1—Cr1i | 40.47 (3) | N2—C8—C9 | 112.56 (13) |
O1i—Cr1—Cr1i | 40.23 (3) | N2—C8—H8A | 109.1 |
N3—Cr1—Cr1i | 141.77 (4) | C9—C8—H8A | 109.1 |
N2—Cr1—Cr1i | 122.99 (4) | N2—C8—H8B | 109.1 |
C9—O1—Cr1 | 109.12 (8) | C9—C8—H8B | 109.1 |
C9—O1—Cr1i | 127.69 (9) | H8A—C8—H8B | 107.8 |
Cr1—O1—Cr1i | 99.30 (5) | O1—C9—C8 | 108.09 (12) |
C1—O2—Cr1 | 128.37 (9) | O1—C9—H9A | 110.1 |
C1—O2—Mn1 | 116.79 (9) | C8—C9—H9A | 110.1 |
Cr1—O2—Mn1 | 114.84 (4) | O1—C9—H9B | 110.1 |
C4—O3—Mn1 | 118.54 (9) | C8—C9—H9B | 110.1 |
C4—O3—H3 | 109.4 | H9A—C9—H9B | 108.4 |
Mn1—O3—H3 | 132.1 | N2—C10—H10A | 109.5 |
C6—O4—Cr1 | 117.74 (9) | N2—C10—H10B | 109.5 |
C6—O4—Mn1i | 126.56 (9) | H10A—C10—H10B | 109.5 |
Cr1—O4—Mn1i | 115.19 (5) | N2—C10—H10C | 109.5 |
C5—N1—C2 | 110.85 (12) | H10A—C10—H10C | 109.5 |
C5—N1—C3 | 110.47 (13) | H10B—C10—H10C | 109.5 |
C2—N1—C3 | 110.54 (13) | N3—C11—S1 | 179.83 (19) |
C5—N1—Mn1 | 112.29 (10) | N4—C12—S2 | 179.54 (18) |
C2—N1—Mn1 | 104.53 (9) | O5—C13—N5 | 124.30 (17) |
C3—N1—Mn1 | 107.99 (9) | O5—C13—H13A | 117.9 |
C10—N2—C7 | 108.96 (12) | N5—C13—H13A | 117.9 |
C10—N2—C8 | 109.64 (12) | N5—C14—H14A | 109.5 |
C7—N2—C8 | 111.83 (12) | N5—C14—H14B | 109.5 |
C10—N2—Cr1 | 115.34 (10) | H14A—C14—H14B | 109.5 |
C7—N2—Cr1 | 104.72 (9) | N5—C14—H14C | 109.5 |
C8—N2—Cr1 | 106.32 (9) | H14A—C14—H14C | 109.5 |
C11—N3—Cr1 | 165.05 (14) | H14B—C14—H14C | 109.5 |
C12—N4—Mn1 | 171.08 (13) | N5—C15—H15A | 109.5 |
C13—N5—C15 | 121.22 (15) | N5—C15—H15B | 109.5 |
C13—N5—C14 | 121.02 (15) | H15A—C15—H15B | 109.5 |
C15—N5—C14 | 117.73 (14) | N5—C15—H15C | 109.5 |
C16—N6—C17 | 120.90 (15) | H15A—C15—H15C | 109.5 |
C16—N6—C18 | 121.30 (15) | H15B—C15—H15C | 109.5 |
C17—N6—C18 | 117.37 (14) | O6—C16—N6 | 126.22 (17) |
O2—C1—C2 | 109.56 (12) | O6—C16—H16A | 116.9 |
O2—C1—H1A | 109.8 | N6—C16—H16A | 116.9 |
C2—C1—H1A | 109.8 | N6—C17—H17A | 109.5 |
O2—C1—H1B | 109.8 | N6—C17—H17B | 109.5 |
C2—C1—H1B | 109.8 | H17A—C17—H17B | 109.5 |
H1A—C1—H1B | 108.2 | N6—C17—H17C | 109.5 |
N1—C2—C1 | 110.99 (13) | H17A—C17—H17C | 109.5 |
N1—C2—H2A | 109.4 | H17B—C17—H17C | 109.5 |
C1—C2—H2A | 109.4 | N6—C18—H18A | 109.5 |
N1—C2—H2B | 109.4 | N6—C18—H18B | 109.5 |
C1—C2—H2B | 109.4 | H18A—C18—H18B | 109.5 |
H2A—C2—H2B | 108 | N6—C18—H18C | 109.5 |
N1—C3—C4 | 110.37 (15) | H18A—C18—H18C | 109.5 |
N1—C3—H3A | 109.6 | H18B—C18—H18C | 109.5 |
C4—C3—H3A | 109.6 | ||
O2—Cr1—O1—C9 | −126.82 (9) | O3—Mn1—N1—C3 | −24.90 (10) |
O4—Cr1—O1—C9 | 51.49 (9) | O2—Cr1—N2—C10 | −33.38 (11) |
O1i—Cr1—O1—C9 | 135.43 (11) | O4—Cr1—N2—C10 | 148.52 (11) |
N2—Cr1—O1—C9 | −29.49 (9) | O1—Cr1—N2—C10 | −117.11 (10) |
Cr1i—Cr1—O1—C9 | 135.43 (11) | O1i—Cr1—N2—C10 | −161.80 (12) |
O2—Cr1—O1—Cr1i | 97.75 (5) | N3—Cr1—N2—C10 | 59.00 (11) |
O4—Cr1—O1—Cr1i | −83.93 (5) | Cr1i—Cr1—N2—C10 | −128.72 (9) |
O1i—Cr1—O1—Cr1i | 0 | O2—Cr1—N2—C7 | −153.11 (9) |
N2—Cr1—O1—Cr1i | −164.92 (5) | O4—Cr1—N2—C7 | 28.78 (9) |
O1—Cr1—O2—C1 | 173.65 (13) | O1—Cr1—N2—C7 | 123.16 (9) |
O1i—Cr1—O2—C1 | −106.42 (13) | O1i—Cr1—N2—C7 | 78.47 (15) |
N3—Cr1—O2—C1 | −4.47 (13) | N3—Cr1—N2—C7 | −60.73 (9) |
N2—Cr1—O2—C1 | 90.32 (13) | Cr1i—Cr1—N2—C7 | 111.54 (8) |
Cr1i—Cr1—O2—C1 | −146.32 (12) | O2—Cr1—N2—C8 | 88.37 (10) |
O1—Cr1—O2—Mn1 | −5.92 (5) | O4—Cr1—N2—C8 | −89.74 (9) |
O1i—Cr1—O2—Mn1 | 74.01 (6) | O1—Cr1—N2—C8 | 4.64 (9) |
N3—Cr1—O2—Mn1 | 175.97 (6) | O1i—Cr1—N2—C8 | −40.06 (18) |
N2—Cr1—O2—Mn1 | −89.25 (6) | N3—Cr1—N2—C8 | −179.25 (10) |
Cr1i—Cr1—O2—Mn1 | 34.11 (5) | Cr1i—Cr1—N2—C8 | −6.98 (11) |
O4i—Mn1—O2—C1 | 121.25 (11) | O2—Cr1—N3—C11 | 87.0 (5) |
N4—Mn1—O2—C1 | −100.05 (11) | O4—Cr1—N3—C11 | −91.3 (5) |
O3—Mn1—O2—C1 | 30.08 (14) | O1i—Cr1—N3—C11 | −175.8 (5) |
N1—Mn1—O2—C1 | 3.21 (11) | N2—Cr1—N3—C11 | −9.9 (5) |
O4i—Mn1—O2—Cr1 | −59.13 (6) | Cr1i—Cr1—N3—C11 | −179.4 (5) |
N4—Mn1—O2—Cr1 | 79.57 (6) | Cr1—O2—C1—C2 | 152.10 (10) |
O3—Mn1—O2—Cr1 | −150.30 (6) | Mn1—O2—C1—C2 | −28.33 (16) |
N1—Mn1—O2—Cr1 | −177.17 (6) | C5—N1—C2—C1 | 76.39 (16) |
O4i—Mn1—O3—C4 | −121.36 (13) | C3—N1—C2—C1 | −160.77 (13) |
N4—Mn1—O3—C4 | 105.78 (13) | Mn1—N1—C2—C1 | −44.81 (14) |
O2—Mn1—O3—C4 | −28.96 (16) | O2—C1—C2—N1 | 50.17 (17) |
N1—Mn1—O3—C4 | −1.57 (12) | C5—N1—C3—C4 | −74.85 (17) |
O1—Cr1—O4—C6 | −91.82 (10) | C2—N1—C3—C4 | 162.08 (13) |
O1i—Cr1—O4—C6 | −172.13 (10) | Mn1—N1—C3—C4 | 48.29 (15) |
N3—Cr1—O4—C6 | 86.19 (10) | Mn1—O3—C4—C3 | 27.02 (18) |
N2—Cr1—O4—C6 | −8.37 (10) | N1—C3—C4—O3 | −49.63 (19) |
Cr1i—Cr1—O4—C6 | −132.03 (10) | Cr1—O4—C6—C7 | −14.59 (15) |
O1—Cr1—O4—Mn1i | 80.51 (5) | Mn1i—O4—C6—C7 | 174.07 (9) |
O1i—Cr1—O4—Mn1i | 0.19 (5) | C10—N2—C7—C6 | −168.24 (14) |
N3—Cr1—O4—Mn1i | −101.49 (6) | C8—N2—C7—C6 | 70.40 (16) |
N2—Cr1—O4—Mn1i | 163.96 (6) | Cr1—N2—C7—C6 | −44.32 (14) |
Cr1i—Cr1—O4—Mn1i | 40.29 (5) | O4—C6—C7—N2 | 39.62 (17) |
O4i—Mn1—N1—C5 | 176.21 (10) | C10—N2—C8—C9 | 145.05 (14) |
N4—Mn1—N1—C5 | 11.66 (11) | C7—N2—C8—C9 | −93.99 (15) |
O2—Mn1—N1—C5 | −97.53 (11) | Cr1—N2—C8—C9 | 19.74 (15) |
O3—Mn1—N1—C5 | 97.14 (11) | Cr1—O1—C9—C8 | 47.36 (14) |
O4i—Mn1—N1—C2 | −63.56 (10) | Cr1i—O1—C9—C8 | 166.30 (9) |
N4—Mn1—N1—C2 | 131.89 (10) | N2—C8—C9—O1 | −44.64 (17) |
O2—Mn1—N1—C2 | 22.71 (9) | C15—N5—C13—O5 | 0.6 (3) |
O3—Mn1—N1—C2 | −142.63 (10) | C14—N5—C13—O5 | 178.61 (17) |
O4i—Mn1—N1—C3 | 54.17 (11) | C17—N6—C16—O6 | 3.1 (3) |
N4—Mn1—N1—C3 | −110.38 (11) | C18—N6—C16—O6 | 175.29 (18) |
O2—Mn1—N1—C3 | 140.44 (11) |
Symmetry code: (i) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cr2Mn2(C5H11NO2)2(C5H12NO2)2(NCS)4]·4C3H7NO |
Mr | 1208.64 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 11.5207 (2), 13.5261 (2), 18.5825 (4) |
β (°) | 106.123 (2) |
V (Å3) | 2781.81 (9) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.04 |
Crystal size (mm) | 0.3 × 0.2 × 0.1 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Sapphire3 |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2008) |
Tmin, Tmax | 0.6, 0.8 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14864, 8065, 5070 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.048, 0.98 |
No. of reflections | 8065 |
No. of parameters | 313 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.43, −0.38 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2010), ABSPACK in CrysAlis PRO (Oxford Diffraction, 2010), SHELXS97 (Sheldrick, 2008), PLATON (Spek, 2009), publCIF (Westrip, 2010).
References
Affronte, M., Casson, I., Evangelisti, M., Candini, A., Carretta, S., Muryn, C. A., Teat, S. J., Timco, G. A., Wernsdorfer, W. & Winpenny, R. E. P. (2005). Angew. Chem. Int. Ed. 44, 6496–6500. Web of Science CSD CrossRef CAS Google Scholar
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Oxford Diffraction (2010). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England. Google Scholar
Saalfrank, R. W., Bernt, I., Chowdhry, M. M., Hampel, F. & Vaughan, G. B. M. (2001). Chem. Eur. J. 7, 2765–2769. CrossRef PubMed CAS Google Scholar
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Great interest in the synthesis and investigation of polynuclear chromium- and manganese-containing compounds dates from the late 90 s mostly due to the works R.E.P. Winpenny and coworkers devoted to magnetic studies of high-nuclear cages and wheels (McInnes et al., 2005; Affronte et al., 2005). At the same time, the potential of alcohols and amino alcohols in generating such metal clusters was widely explored (Saalfrank et al., 2001; Langley et al., 2009; Ferguson et al., 2008).The polydentate alkoxo ligands possessing versatile bridging modes were recognized as promising reagents for synthesis of new heterometallic complexes. Previously we have demonstrated that amino alcohols represent a powerful tool for assembling polynuclear metal complexes in conditions of the synthetic approach named "direct synthesis of coordination compounds". This strategy employs metal powders or metal oxides as starting materials and eliminates the separate step of building block construction, proving to be an efficient route to obtain new heterometallic complexes (Kokozay & Shevchenko, 2005). Novel heterometallic compound [Mn2Cr2(NCS)4(HMeDea)2(MeDea)2].4dmf have been prepared in one-step self-assembly reaction of zerovalent manganese, Reineckes salt, ammonium thiocyanate and dymethylformamide (dmf) solution of N-methyldiethanolamine (H2MeDea) in air using molar ratio Mn0:NH4[Cr(NCS)4(NH3)2].H2O = 4: 1. X-ray diffraction studies reveal that the centrosymmetric molecular structure of the complex is based on a tetranuclear {Mn2Cr2(µ-O)6} core with the metal atoms arranged in a planar rhombic array. In the present complex MeDea and HMeDea ligands adopt a chelating-bridging mode forming five-membered rings. Both manganese(II) ions are five coordinated and have N2O3 donor sets (Fig. 1) formed by three oxygen and one nitrogen atom of N-methyldiethanolamine ligands and one nitrogen atom of terminal thiocyanate group. The Mn–O(N) bond lengths vary in the range 2.0651 (10)–2.3004 (13) Å, while cis and trans O(N)–Mn–O(N) bond angles range from 65.28 (6)° to 124.35 (14)° and from 140.06 (9)° to 173.0 (3)°, respectively. Each chromium(III) atom has distorted octahedral environment comprised by four oxygen and one nitrogen atoms from N-methyldiethanolamine ligands and one nitrogen atom from terminal thiocyanate group. The Cr–O(N) distances are in the range of 1.9391 (10)–2.0974 (14) Å. The cis and trans O(N)–Cr–O(N) bond angles vary from 80.70 (5)° to 101.65 (5)° and from 158.59 (5)° to 177.32 (5)°, respectively. Tetranuclear molecule of the complex and two dmf molecules are linked together by O–H···O hydrogen bonds [O(3)–H(3)···O(5): D–A = 2.598 Å, D–H···A = 175.99°], two other uncoordinated molecules of dmf are not involved in hydrogen bonding.