Bis(carbonyl-κC)(N,N-dimethyl­thio­carbamoyl-κ2C,S)(pyridine-2-thiol­ato-κ2N,S)(triphenyl­phosphine-κP)molybdenum(II)

Yih, K.-H.; Wang, H.-F.; Lee, G.-H.

doi:10.1107/S1600536810034562

metal-organic compounds

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ISSN: 2056-9890

Volume 66| Part 10| October 2010| Pages m1189-m1190

doi:10.1107/S1600536810034562

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Bis(carbonyl-κC)(N,N-dimethylthiocarbamoyl-κ²C,S)(pyridine-2-thiolato-κ²N,S)(triphenylphosphine-κP)molybdenum(II)

Kuang-Hway Yih,^a ^* Hsiao-Fen Wang ^a and Gene-Hsiang Lee ^b ^*

^aDepartment of Applied Cosmetology, Hungkuang University, Shalu 433, Taichung, Taiwan, and ^bInstrumentation Center, College of Science, National Taiwan University, Taipei 106, Taiwan
^*Correspondence e-mail: khyih@sunrise.hk.edu.tw, ghlee@ntu.edu.tw

(Received 17 August 2010; accepted 27 August 2010; online 4 September 2010)

There are two independent molecules with similar configurations in the title complex, [Mo(C₃H₆NS)(C₅H₄NS)(C₁₈H₁₅P)(CO)₂]. The geometry around the metal atom is that of a capped octahedron. The thiocabamoyl and pyridine-2-thiolate ligands coordinate to the molybdenum metal center through the C and S atoms, and N and S atoms, respectively. NMR, IR and MS analyses are in agreement with the structure of the title compound.

Related literature

Molybdenum complexes containing Mo—S and Mo—N bonds are of special interest because of their relevance to a variety of molybdenum-containing enzymes (Cramer et al., 1978 ) and hydrodesulfurization catalysts (Anzenhofer & de Boer, 1969 ). For complexes of group VI metals and the pyridine-2-thiolate ligand, see: Baker et al. (1995 ); Cotton & Ilsley (1981 ). For related structures of thiocabamoyl–molybdenum complexes, see: Anderson & Hill (1993 ); Foreman et al. (2003 ); Lim et al. (2005 ). For bond lengths in molybdenum–carbonyl complexes, see: Yih & Lee (2008 ) and references therein. For the SCNMe₂ ligand, see: Lin et al. (2004 ) and for typical bond lengths, see: Huheey (1983 ). For bond distances and angles in molybdenum–pyridine-2-thiolate complexes, see: Yih et al. (2003a , 2003b ) and references therein.

Experimental

Crystal data

[Mo(C₃H₆NS)(C₅H₄NS)(C₁₈H₁₅P)(CO)₂]
M_r = 612.53
Monoclinic, P 2₁ /c
a = 20.0947 (8) Å
b = 15.8720 (6) Å
c = 17.8596 (7) Å
β = 107.563 (1)°
V = 5430.7 (4) Å³
Z = 8
Mo Kα radiation
μ = 0.72 mm⁻¹
T = 150 K
0.35 × 0.06 × 0.04 mm

Data collection

Bruker SMART APEX CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2007 ) T_min = 0.95, T_max = 0.97
41353 measured reflections
12460 independent reflections
8888 reflections with I > 2σ(I)
R_int = 0.089

Refinement

R[F² > 2σ(F²)] = 0.063
wR(F²) = 0.123
S = 1.08
12460 reflections
653 parameters
1 restraint
H-atom parameters constrained
Δρ_max = 0.96 e Å⁻³
Δρ_min = −0.78 e Å⁻³

Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536810034562/bg2366sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536810034562/bg2366Isup2.hkl

checkCIF report

Comment top

To synthesis of seven coordinated and NS-coordinated metal compound, complex [Mo(CO)₂(SCNMe₂)(PPh₃)₂Cl] was used to react with C₅H₄NSH in dichloromethane at room temperature. As a result, a chloride and triphenylphosphine displaced complex [Mo(CO)₂(SNC₅H₄)(SCNMe₂)(PPh₃)] was isolated with 82% yield. The X-ray crystal structure analysis has been carried out to provide structural parameters.

The molecular structure and the packing diagram of the title compound are shown in Fig. 1 and 2 respectively. X-ray analysis shows that the unit cell contains two independent molecules. There are small difference in bond distances (in the range of 0.002–0.025 Å) and bond angles (in the range of 0–3.32°) between the two independent molecules around the metal atoms. The geometry around the cations is midway a capped trigonal prism and a capped octahedron. The capped trigonal prism consists of a phosphorus atom, P1(P2), in the unique capping position [Mo—P(av) = 2.5651 (12)], carbonyl group, C1-O1(C29-O3) and sulfur atom of the thiocabamoyl group, S1(S3), and nitrogen and sulfur atoms of the pyridine-2-thiolate ligand, in the capped quadrilateral face [Mo—C1(C29)(av) = 1.946 (5); Mo—S1(S3)(av) = 2.5031 (12); Mo—N2(N4)(av) = 2.252 (4); Mo—S2(S4)(av) = 2.5393 (12)] and the other carbonyl group in the unique edge [Mo—C2(C30)(av) = 1.983 (5)]. In contrast the capped octahedron is made up of C3(C31) in the capping position, C3(C31), S1(S3), and C2(C30) in the capped face, and P1(P2), S2(S4), and N2(N4) in the uncapped face. The PPh₃ and carbonyl group is in trans position: P1—Mo—C(av) = 142.64 (14)°, while the pyridine-2-thiolate ligand and carbonyl and sulfur atom of the SCNMe₂ ligand are trans to each other: C1—Mo—N2(C29—Mo2—N4)(av) = 175.40 (16)° and S1—Mo—S2(S3—Mo2—S4) = 149.29 (4)°. The Mo—C—O angles of (I) are essentially linear in the region of 170.3 (4)–178.3 (4)° and similar to those found for other terminal carbonyls contained in Mo systems. The Mo—CO(av) (1.946 (5), 1.983 (5) Å) and C—O(av) distances (1.163 (5), 1.153 (5) Å) are both with the range of values reported for the other molybdenum carbonyl complexes (Yih & Lee, 2008 and references therein).

Within the SCNMe₂ ligand (Lin et al., 2004), the C—S(av) (1.694 (5) Å) and SC—N(av) (1.309 (5) Å) bond distances are typical for C—N and C—S bonds having partial double bond character and are certainly much shorter than the normal C—N (1.47 Å) and C—S (1.82 Å) single bonds (Huheey, 1983). The Me—N(av) bond distances (1.454 (6) and 1.470 (6) Å) are normal for a single bond. Within the SNC₅H₄ ligand, the S2—C6—N2(S4—C34—N4) bond distances and angles shows a geometrical environment characteristic of a sp² hybridization of the carbon atom. In addition, the S2—C6—N2(S4—C34—N4)(av) angle of 110.8 (3)° and the S2—Mo—N2(S4—Mo2—N4)(av) angle of 64.11 (10)° is similar to other molybdenum pyridine-2-thiolate complexes (Yih et al., 2003a, 2003b and references therein).

In the ¹H NMR spectrum of (I), three protons of the SNC₅H₄ ligand exhibits one doublet resonance at δ 6.21 and two triplet resonances at δ 6.46, 6.88 with ratio of 1:1:1. Two methyl resonances at δ 3.55 and δ 3.78 of the SCNMe² ligand are observed in the ¹H NMR spectra of complex (I), consistent with hindered rotation about the partially multiple C—N bond. In the ¹³C{¹H} NMR spectrum of (I), two singlet resonances appear at δ 45.2, δ 50.4 for the carbon atoms of N-methyl groups, respectively. Three singlet resonances appear at δ 176.8, 235.1 and 248.0 for the carbon atom of the NCS, CO and Me₂NCS groups, respectively. The ³¹P{¹H} NMR spectrum of (I) shows one resonance at δ 48.5.

It is also noted the IR spectrum of the title complex (I) shows five stretching bands at 1921 and 1824 cm^-1 for C=O, at 1563 cm^-1 for C=N, at 1481 and 1434 cm^-1 for C=S groups. In the FAB mass spectra, base peak with the typical Mo isotope distribution is in agreement with the [M⁺] molecular mass of (I).

Related literature top

Molybdenum complexes containing Mo—S and Mo—N bonds are of special interest because of their relevance to a variety of molybdenum-containing enzymes (Cramer et al., 1978) and hydrodesulfurization catalysts (Anzenhofer & de Boer, 1969). For complexes of group VI metals and the pyridine-2-thiolate ligand, see: Baker et al. (1995); Cotton & Ilsley (1981). For related structures of thiocabamoyl–molybdenum complexes, see: Anderson & Hill (1993); Foreman et al. (2003); Lim et al. (2005). For bond lengths in molybdenum–carbonyl complexes, see: Yih & Lee (2008) and references therein. For the SCNMe₂ ligand, see: Lin et al. (2004) and for typical bond lengths, see: Huheey (1983). For bond distances and angles in molybdenum–pyridine-2-thiolate complexes, see: Yih et al. (2003a, 2003b) and references therein.

Experimental top

The synthesis of the title compound (I) was carried out as follows. CH₂Cl₂ (10 ml) was added to a flask (100 ml) containing C₅H₄NSH (0.111 g, 1.0 mmol) and [Mo(CO)₂(SCNMe₂)(PPh₃)₂Cl] (0.800 g, 1.0 mmol). The solution was stirred for 10 min at room temperature. The solution is concentrated under vacuum and MeOH (10 ml) was added to initiate precipitation. The orange solids were isolated by filtration (G4), washed with diethyl ether (2 x 10 ml) and subsequently drying under vacuum yielding [Mo(CO)₂(SNC₅H₄)(SCNMe₂)(PPh₃)] (0.501 g, 82%). Further purification was accomplished by recrystallization from 1/10 CH₂Cl₂/n-hexane. The orange crystals of (I) for X-ray structure analysis were obtained by slow diffusion of n-hexane into the CH₂Cl₂ solution of the title compound at room temperature for 3 days. Spectroscopic analysis: ¹H NMR (CDCl₃, 298 K, δ, p.p.m.): 3.55, 3.78 (s, 6H, NMe₂), 6.21 (d, 1H, NCH, ³J_H—H = 8.15 Hz), 6.46 (t, 1H, NCCH, ³J_H—H = 6.45 Hz), 6.88 (t, 1H, NCCCH, ³J_H—H = 7.25 Hz), 7.35–7.55 (m, 16H, Ph, HCCNS). ³¹P{¹H} NMR (CDCl₃, 298 K, δ, p.p.m.): δ 48.5. ¹³C{¹H} NMR (CDCl₃, 298 K, δ, p.p.m.): δ 45.2, 50.4 (s, NMe), 176.8 (s, NCS), 235.1 (s, CO), 248.0 (s, MeNCS). MS (m/z): 614 (M⁺). Anal. Calcd for C₂₈H₂₅N₂O₂PS₂Mo: C, 54.90; H, 4.11; N, 4.57. Found: C, 55.10; H, 4.25; N, 4.22.

Computing details top

Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top

	Fig. 1. The molecular structure of (I), showing two independent molecules and the 50% probability displacement ellipsoids.
	Fig. 2. The packing diagram of (I).

Bis(carbonyl-κC)(N,N-dimethylthiocarbamoyl- κ²C,S)(pyridine-2-thiolato- κ²N,S)(triphenylphosphine-κP)molybdenum(II) top

Crystal data top

[Mo(C₃H₆NS)(C₅H₄NS)(C₁₈H₁₅P)(CO)₂]	F(000) = 2496
M_r = 612.53	D_x = 1.498 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 3107 reflections
a = 20.0947 (8) Å	θ = 2.3–19.9°
b = 15.8720 (6) Å	µ = 0.72 mm⁻¹
c = 17.8596 (7) Å	T = 150 K
β = 107.563 (1)°	Needle, orange-red
V = 5430.7 (4) Å³	0.35 × 0.06 × 0.04 mm
Z = 8

Data collection top

Bruker SMART APEX CCD area-detector diffractometer	12460 independent reflections
Radiation source: fine-focus sealed tube	8888 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.089
ω scans	θ_max = 27.5°, θ_min = 1.1°
Absorption correction: multi-scan (SADABS; Bruker, 2007)	h = −26→26
T_min = 0.95, T_max = 0.97	k = −20→20
41353 measured reflections	l = −23→23

Refinement top

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)] = 0.063	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.123	H-atom parameters constrained
S = 1.08	w = 1/[σ²(F_o²) + (0.0357P)² + 4.9994P] where P = (F_o² + 2F_c²)/3
12460 reflections	(Δ/σ)_max = 0.001
653 parameters	Δρ_max = 0.96 e Å⁻³
1 restraint	Δρ_min = −0.78 e Å⁻³

Crystal data top

[Mo(C₃H₆NS)(C₅H₄NS)(C₁₈H₁₅P)(CO)₂]	V = 5430.7 (4) Å³
M_r = 612.53	Z = 8
Monoclinic, P2₁/c	Mo Kα radiation
a = 20.0947 (8) Å	µ = 0.72 mm⁻¹
b = 15.8720 (6) Å	T = 150 K
c = 17.8596 (7) Å	0.35 × 0.06 × 0.04 mm
β = 107.563 (1)°

Data collection top

Bruker SMART APEX CCD area-detector diffractometer	12460 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2007)	8888 reflections with I > 2σ(I)
T_min = 0.95, T_max = 0.97	R_int = 0.089
41353 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.063	1 restraint
wR(F²) = 0.123	H-atom parameters constrained
S = 1.08	Δρ_max = 0.96 e Å⁻³
12460 reflections	Δρ_min = −0.78 e Å⁻³
653 parameters

Special details top

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.

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

	x	y	z	U_iso*/U_eq
Mo1	0.806022 (19)	0.49072 (2)	0.20800 (2)	0.01743 (10)
S1	0.82845 (6)	0.56981 (8)	0.09595 (7)	0.0248 (3)
S2	0.82401 (6)	0.47101 (7)	0.35379 (7)	0.0216 (2)
P1	0.93923 (6)	0.47268 (7)	0.26360 (7)	0.0170 (2)
O1	0.80516 (19)	0.3184 (2)	0.1255 (2)	0.0383 (9)
O2	0.66462 (18)	0.3986 (2)	0.1908 (2)	0.0407 (9)
N1	0.6957 (2)	0.6123 (2)	0.0831 (2)	0.0260 (9)
N2	0.81074 (18)	0.6102 (2)	0.2784 (2)	0.0210 (8)
C1	0.8062 (2)	0.3835 (3)	0.1558 (3)	0.0237 (10)
C2	0.7146 (2)	0.4383 (3)	0.2006 (3)	0.0274 (11)
C3	0.7511 (2)	0.5672 (3)	0.1156 (3)	0.0216 (10)
C4	0.6906 (3)	0.6710 (3)	0.0191 (3)	0.0397 (14)
H4A	0.7210	0.6521	−0.0114	0.060*
H4B	0.7052	0.7272	0.0406	0.060*
H4C	0.6422	0.6733	−0.0150	0.060*
C5	0.6355 (3)	0.6117 (3)	0.1140 (3)	0.0386 (14)
H5A	0.6460	0.5758	0.1608	0.058*
H5B	0.5944	0.5897	0.0739	0.058*
H5C	0.6261	0.6693	0.1280	0.058*
C6	0.8229 (2)	0.5806 (3)	0.3522 (3)	0.0222 (10)
C7	0.8324 (3)	0.6347 (3)	0.4162 (3)	0.0310 (12)
H7	0.8406	0.6131	0.4679	0.037*
C8	0.8295 (3)	0.7203 (3)	0.4025 (3)	0.0367 (13)
H8	0.8364	0.7586	0.4451	0.044*
C9	0.8167 (3)	0.7506 (3)	0.3271 (3)	0.0349 (13)
H9	0.8139	0.8095	0.3170	0.042*
C10	0.8080 (3)	0.6941 (3)	0.2670 (3)	0.0289 (11)
H10	0.7996	0.7150	0.2151	0.035*
C11	0.9890 (2)	0.4740 (3)	0.1922 (3)	0.0191 (9)
C12	1.0533 (2)	0.5140 (3)	0.2086 (3)	0.0260 (11)
H12	1.0702	0.5468	0.2550	0.031*
C13	1.0928 (2)	0.5061 (3)	0.1574 (3)	0.0320 (12)
H13	1.1369	0.5332	0.1691	0.038*
C14	1.0688 (3)	0.4595 (3)	0.0903 (3)	0.0335 (13)
H14	1.0966	0.4536	0.0560	0.040*
C15	1.0043 (3)	0.4210 (3)	0.0723 (3)	0.0338 (12)
H15	0.9872	0.3894	0.0252	0.041*
C16	0.9646 (2)	0.4288 (3)	0.1236 (3)	0.0254 (11)
H16	0.9201	0.4025	0.1112	0.030*
C17	0.9711 (2)	0.3735 (3)	0.3144 (3)	0.0192 (10)
C18	1.0428 (2)	0.3568 (3)	0.3409 (3)	0.0248 (11)
H18	1.0748	0.3978	0.3339	0.030*
C19	1.0673 (3)	0.2815 (3)	0.3770 (3)	0.0276 (11)
H19	1.1162	0.2710	0.3951	0.033*
C20	1.0214 (3)	0.2214 (3)	0.3869 (3)	0.0292 (11)
H20	1.0386	0.1698	0.4124	0.035*
C21	0.9497 (3)	0.2360 (3)	0.3598 (3)	0.0284 (11)
H21	0.9180	0.1942	0.3661	0.034*
C22	0.9252 (2)	0.3118 (3)	0.3236 (3)	0.0212 (10)
H22	0.8764	0.3217	0.3049	0.025*
C23	0.9799 (2)	0.5561 (3)	0.3320 (3)	0.0182 (9)
C24	1.0134 (2)	0.5434 (3)	0.4113 (3)	0.0224 (10)
H24	1.0184	0.4881	0.4325	0.027*
C25	1.0397 (2)	0.6121 (3)	0.4596 (3)	0.0277 (11)
H25	1.0617	0.6036	0.5142	0.033*
C26	1.0340 (3)	0.6926 (3)	0.4289 (3)	0.0300 (12)
H26	1.0530	0.7391	0.4620	0.036*
C27	1.0005 (3)	0.7054 (3)	0.3496 (3)	0.0310 (12)
H27	0.9960	0.7608	0.3284	0.037*
C28	0.9738 (2)	0.6377 (3)	0.3016 (3)	0.0247 (11)
H28	0.9509	0.6467	0.2473	0.030*
Mo2	0.674279 (19)	0.00407 (2)	0.20870 (2)	0.02074 (10)
S3	0.60303 (7)	0.10985 (8)	0.11544 (8)	0.0313 (3)
S4	0.73214 (6)	−0.03888 (8)	0.35052 (7)	0.0250 (3)
P2	0.57175 (6)	−0.01510 (8)	0.26382 (7)	0.0222 (3)
O3	0.6161 (2)	−0.1508 (2)	0.1027 (2)	0.0444 (10)
O4	0.79629 (19)	−0.1014 (2)	0.1818 (2)	0.0422 (10)
N3	0.7251 (2)	0.1167 (3)	0.0823 (2)	0.0307 (10)
N4	0.71783 (19)	0.1094 (2)	0.2930 (2)	0.0241 (9)
C29	0.6359 (2)	−0.0925 (3)	0.1423 (3)	0.0269 (10)
C30	0.7558 (3)	−0.0579 (3)	0.1958 (3)	0.0295 (11)
C31	0.6867 (2)	0.0848 (3)	0.1233 (3)	0.0251 (11)
C32	0.6979 (3)	0.1766 (4)	0.0178 (3)	0.0485 (16)
H32A	0.6470	0.1716	−0.0022	0.073*
H32B	0.7182	0.1643	−0.0245	0.073*
H32C	0.7105	0.2341	0.0370	0.073*
C33	0.7986 (3)	0.0952 (4)	0.0995 (3)	0.0406 (14)
H33A	0.8129	0.0595	0.1464	0.061*
H33B	0.8266	0.1469	0.1088	0.061*
H33C	0.8058	0.0647	0.0548	0.061*
C34	0.7465 (2)	0.0687 (3)	0.3624 (3)	0.0251 (11)
C35	0.7818 (2)	0.1125 (3)	0.4309 (3)	0.0295 (12)
H35	0.8008	0.0836	0.4792	0.035*
C36	0.7884 (3)	0.1967 (4)	0.4265 (3)	0.0372 (13)
H36	0.8135	0.2271	0.4721	0.045*
C37	0.7590 (3)	0.2404 (3)	0.3563 (3)	0.0366 (13)
H37	0.7630	0.2999	0.3538	0.044*
C38	0.7239 (3)	0.1944 (3)	0.2908 (3)	0.0314 (12)
H38	0.7034	0.2231	0.2426	0.038*
C39	0.4836 (2)	−0.0016 (3)	0.1958 (3)	0.0265 (10)
C40	0.4703 (3)	−0.0151 (3)	0.1159 (3)	0.0337 (12)
H40	0.5071	−0.0319	0.0961	0.040*
C41	0.4035 (3)	−0.0045 (3)	0.0645 (3)	0.0405 (13)
H41	0.3953	−0.0122	0.0097	0.049*
C42	0.3491 (3)	0.0170 (4)	0.0927 (3)	0.0446 (15)
H42	0.3034	0.0239	0.0574	0.054*
C43	0.3611 (3)	0.0286 (3)	0.1717 (3)	0.0337 (12)
H43	0.3234	0.0417	0.1914	0.040*
C44	0.4278 (2)	0.0212 (3)	0.2226 (3)	0.0277 (11)
H44	0.4359	0.0318	0.2770	0.033*
C45	0.5651 (2)	−0.1195 (3)	0.3041 (3)	0.0256 (11)
C46	0.5118 (3)	−0.1382 (3)	0.3360 (3)	0.0361 (13)
H46	0.4776	−0.0967	0.3358	0.043*
C47	0.5081 (3)	−0.2169 (3)	0.3680 (3)	0.0399 (14)
H47	0.4719	−0.2287	0.3906	0.048*
C48	0.5561 (3)	−0.2778 (3)	0.3675 (3)	0.0391 (14)
H48	0.5530	−0.3316	0.3895	0.047*
C49	0.6093 (3)	−0.2612 (3)	0.3350 (3)	0.0362 (13)
H49	0.6428	−0.3033	0.3346	0.043*
C50	0.6130 (3)	−0.1825 (3)	0.3032 (3)	0.0300 (12)
H50	0.6489	−0.1712	0.2802	0.036*
C51	0.5712 (2)	0.0588 (3)	0.3419 (3)	0.0244 (10)
C52	0.5847 (3)	0.0367 (4)	0.4208 (3)	0.0430 (15)
H52	0.5967	−0.0196	0.4373	0.052*
C53	0.5805 (4)	0.0973 (4)	0.4745 (4)	0.064 (2)
H53	0.5899	0.0825	0.5283	0.077*
C54	0.5627 (4)	0.1785 (4)	0.4513 (4)	0.062 (2)
H54	0.5580	0.2189	0.4886	0.074*
C55	0.5518 (3)	0.2020 (4)	0.3752 (4)	0.0512 (17)
H55	0.5411	0.2589	0.3597	0.061*
C56	0.5564 (3)	0.1425 (3)	0.3207 (3)	0.0369 (13)
H56	0.5493	0.1590	0.2678	0.044*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Mo1	0.01436 (18)	0.0187 (2)	0.0181 (2)	0.00014 (16)	0.00320 (15)	0.00006 (16)
S1	0.0213 (6)	0.0303 (7)	0.0233 (6)	0.0000 (5)	0.0076 (5)	0.0035 (5)
S2	0.0211 (6)	0.0222 (6)	0.0208 (6)	0.0019 (5)	0.0053 (5)	0.0012 (5)
P1	0.0144 (5)	0.0194 (6)	0.0172 (6)	−0.0001 (4)	0.0047 (5)	0.0005 (5)
O1	0.046 (2)	0.031 (2)	0.035 (2)	−0.0014 (17)	0.0079 (18)	−0.0105 (17)
O2	0.026 (2)	0.045 (2)	0.053 (3)	−0.0123 (17)	0.0128 (18)	−0.0053 (19)
N1	0.023 (2)	0.031 (2)	0.021 (2)	0.0036 (18)	0.0017 (18)	0.0030 (18)
N2	0.0144 (18)	0.025 (2)	0.023 (2)	0.0030 (16)	0.0052 (16)	0.0034 (17)
C1	0.022 (2)	0.027 (3)	0.020 (2)	−0.002 (2)	0.003 (2)	0.004 (2)
C2	0.021 (2)	0.032 (3)	0.028 (3)	−0.001 (2)	0.006 (2)	−0.003 (2)
C3	0.020 (2)	0.022 (2)	0.019 (2)	0.0007 (19)	0.001 (2)	−0.0067 (19)
C4	0.043 (3)	0.038 (3)	0.033 (3)	0.009 (3)	0.004 (3)	0.013 (3)
C5	0.025 (3)	0.047 (3)	0.046 (4)	0.011 (2)	0.014 (3)	0.010 (3)
C6	0.016 (2)	0.023 (2)	0.027 (3)	0.0020 (19)	0.006 (2)	−0.002 (2)
C7	0.040 (3)	0.033 (3)	0.021 (3)	0.008 (2)	0.010 (2)	0.001 (2)
C8	0.043 (3)	0.031 (3)	0.035 (3)	0.001 (2)	0.011 (3)	−0.010 (2)
C9	0.043 (3)	0.022 (3)	0.036 (3)	0.006 (2)	0.008 (3)	−0.004 (2)
C10	0.029 (3)	0.029 (3)	0.028 (3)	0.005 (2)	0.007 (2)	0.005 (2)
C11	0.022 (2)	0.018 (2)	0.019 (2)	0.0009 (18)	0.0076 (19)	0.0036 (18)
C12	0.020 (2)	0.031 (3)	0.027 (3)	0.000 (2)	0.007 (2)	0.002 (2)
C13	0.023 (2)	0.036 (3)	0.039 (3)	0.001 (2)	0.013 (2)	0.011 (3)
C14	0.037 (3)	0.038 (3)	0.035 (3)	0.014 (2)	0.025 (3)	0.013 (2)
C15	0.042 (3)	0.032 (3)	0.031 (3)	0.010 (2)	0.018 (3)	0.008 (2)
C16	0.025 (3)	0.027 (3)	0.025 (3)	0.001 (2)	0.008 (2)	0.002 (2)
C17	0.019 (2)	0.024 (2)	0.014 (2)	0.0018 (19)	0.0049 (19)	−0.0022 (19)
C18	0.022 (2)	0.025 (3)	0.028 (3)	−0.002 (2)	0.008 (2)	−0.001 (2)
C19	0.025 (3)	0.033 (3)	0.023 (3)	0.010 (2)	0.005 (2)	0.002 (2)
C20	0.036 (3)	0.030 (3)	0.024 (3)	0.010 (2)	0.011 (2)	0.002 (2)
C21	0.037 (3)	0.023 (3)	0.029 (3)	0.000 (2)	0.017 (2)	0.002 (2)
C22	0.019 (2)	0.026 (3)	0.019 (2)	0.0036 (19)	0.007 (2)	−0.001 (2)
C23	0.015 (2)	0.022 (2)	0.019 (2)	−0.0005 (18)	0.0072 (19)	0.0001 (19)
C24	0.018 (2)	0.024 (2)	0.027 (3)	0.0012 (19)	0.009 (2)	0.002 (2)
C25	0.023 (3)	0.040 (3)	0.016 (2)	−0.006 (2)	0.001 (2)	−0.003 (2)
C26	0.028 (3)	0.030 (3)	0.029 (3)	−0.006 (2)	0.005 (2)	−0.010 (2)
C27	0.036 (3)	0.024 (3)	0.032 (3)	−0.007 (2)	0.008 (2)	−0.001 (2)
C28	0.029 (3)	0.025 (3)	0.019 (3)	0.000 (2)	0.005 (2)	0.000 (2)
Mo2	0.0189 (2)	0.0235 (2)	0.0214 (2)	−0.00080 (17)	0.00855 (16)	−0.00052 (18)
S3	0.0245 (6)	0.0370 (7)	0.0332 (8)	0.0063 (6)	0.0101 (6)	0.0067 (6)
S4	0.0227 (6)	0.0285 (6)	0.0235 (6)	−0.0003 (5)	0.0067 (5)	0.0028 (5)
P2	0.0190 (6)	0.0274 (7)	0.0207 (6)	−0.0007 (5)	0.0070 (5)	0.0000 (5)
O3	0.053 (3)	0.036 (2)	0.046 (3)	−0.0092 (19)	0.018 (2)	−0.0191 (19)
O4	0.037 (2)	0.040 (2)	0.056 (3)	0.0087 (18)	0.024 (2)	−0.0011 (19)
N3	0.028 (2)	0.035 (2)	0.028 (2)	−0.0039 (19)	0.0072 (19)	0.0084 (19)
N4	0.020 (2)	0.029 (2)	0.028 (2)	−0.0029 (17)	0.0138 (18)	−0.0053 (18)
C29	0.020 (2)	0.031 (2)	0.029 (3)	−0.0027 (19)	0.006 (2)	−0.0050 (17)
C30	0.029 (3)	0.031 (3)	0.031 (3)	0.004 (2)	0.012 (2)	0.004 (2)
C31	0.023 (2)	0.031 (3)	0.025 (3)	−0.004 (2)	0.011 (2)	−0.008 (2)
C32	0.043 (4)	0.052 (4)	0.047 (4)	−0.011 (3)	0.007 (3)	0.023 (3)
C33	0.024 (3)	0.050 (4)	0.050 (4)	−0.007 (3)	0.014 (3)	0.004 (3)
C34	0.019 (2)	0.033 (3)	0.025 (3)	0.000 (2)	0.009 (2)	−0.004 (2)
C35	0.025 (3)	0.041 (3)	0.024 (3)	0.002 (2)	0.011 (2)	−0.010 (2)
C36	0.029 (3)	0.047 (4)	0.036 (3)	−0.008 (3)	0.011 (3)	−0.020 (3)
C37	0.038 (3)	0.034 (3)	0.046 (4)	−0.012 (2)	0.024 (3)	−0.013 (3)
C38	0.029 (3)	0.030 (3)	0.041 (3)	−0.005 (2)	0.019 (2)	−0.003 (2)
C39	0.023 (2)	0.029 (3)	0.027 (3)	−0.003 (2)	0.006 (2)	−0.005 (2)
C40	0.026 (3)	0.046 (3)	0.027 (3)	−0.009 (2)	0.005 (2)	−0.009 (2)
C41	0.033 (3)	0.049 (4)	0.034 (3)	−0.006 (3)	0.001 (2)	−0.006 (3)
C42	0.024 (3)	0.057 (4)	0.046 (4)	0.000 (3)	0.000 (3)	−0.007 (3)
C43	0.021 (2)	0.040 (3)	0.042 (3)	−0.002 (2)	0.011 (2)	0.001 (3)
C44	0.025 (2)	0.028 (3)	0.031 (3)	0.000 (2)	0.009 (2)	0.002 (2)
C45	0.023 (2)	0.031 (3)	0.022 (3)	−0.005 (2)	0.005 (2)	−0.001 (2)
C46	0.033 (3)	0.039 (3)	0.038 (3)	−0.004 (2)	0.014 (3)	0.004 (3)
C47	0.041 (3)	0.042 (3)	0.040 (3)	−0.016 (3)	0.016 (3)	0.003 (3)
C48	0.045 (3)	0.029 (3)	0.039 (3)	−0.018 (3)	0.006 (3)	−0.003 (3)
C49	0.042 (3)	0.028 (3)	0.036 (3)	−0.005 (2)	0.007 (3)	−0.004 (2)
C50	0.029 (3)	0.030 (3)	0.031 (3)	−0.004 (2)	0.008 (2)	−0.002 (2)
C51	0.021 (2)	0.030 (3)	0.026 (3)	−0.001 (2)	0.012 (2)	−0.006 (2)
C52	0.063 (4)	0.041 (3)	0.027 (3)	−0.012 (3)	0.016 (3)	0.000 (3)
C53	0.108 (6)	0.060 (5)	0.035 (4)	−0.028 (4)	0.037 (4)	−0.017 (3)
C54	0.090 (5)	0.051 (4)	0.060 (5)	−0.026 (4)	0.049 (4)	−0.030 (4)
C55	0.053 (4)	0.037 (3)	0.068 (5)	−0.006 (3)	0.026 (4)	−0.018 (3)
C56	0.038 (3)	0.041 (3)	0.033 (3)	−0.004 (3)	0.013 (3)	−0.006 (3)

Geometric parameters (Å, º) top

Mo1—C1	1.941 (5)	Mo2—C29	1.948 (5)
Mo1—C2	1.984 (5)	Mo2—C30	1.982 (5)
Mo1—C3	2.077 (5)	Mo2—C31	2.064 (5)
Mo1—N2	2.261 (4)	Mo2—N4	2.243 (4)
Mo1—S1	2.5156 (12)	Mo2—S3	2.4907 (13)
Mo1—S2	2.5378 (12)	Mo2—S4	2.5407 (12)
Mo1—P1	2.5746 (11)	Mo2—P2	2.5555 (12)
S1—C3	1.694 (5)	S3—C31	1.692 (5)
S2—C6	1.739 (5)	S4—C34	1.735 (5)
P1—C23	1.819 (4)	P2—C51	1.825 (5)
P1—C17	1.833 (5)	P2—C45	1.828 (5)
P1—C11	1.842 (4)	P2—C39	1.833 (5)
O1—C1	1.163 (5)	O3—C29	1.161 (5)
O2—C2	1.153 (5)	O4—C30	1.151 (6)
N1—C3	1.304 (5)	N3—C31	1.315 (6)
N1—C4	1.454 (6)	N3—C33	1.454 (6)
N1—C5	1.472 (6)	N3—C32	1.468 (6)
N2—C10	1.346 (6)	N4—C38	1.356 (6)
N2—C6	1.351 (6)	N4—C34	1.361 (6)
C4—H4A	0.9800	C32—H32A	0.9800
C4—H4B	0.9800	C32—H32B	0.9800
C4—H4C	0.9800	C32—H32C	0.9800
C5—H5A	0.9800	C33—H33A	0.9800
C5—H5B	0.9800	C33—H33B	0.9800
C5—H5C	0.9800	C33—H33C	0.9800
C6—C7	1.396 (6)	C34—C35	1.399 (6)
C7—C8	1.380 (7)	C35—C36	1.348 (7)
C7—H7	0.9500	C35—H35	0.9500
C8—C9	1.379 (7)	C36—C37	1.398 (7)
C8—H8	0.9500	C36—H36	0.9500
C9—C10	1.368 (7)	C37—C38	1.378 (7)
C9—H9	0.9500	C37—H37	0.9500
C10—H10	0.9500	C38—H38	0.9500
C11—C16	1.376 (6)	C39—C40	1.387 (6)
C11—C12	1.390 (6)	C39—C44	1.393 (6)
C12—C13	1.385 (6)	C40—C41	1.387 (7)
C12—H12	0.9500	C40—H40	0.9500
C13—C14	1.366 (7)	C41—C42	1.377 (7)
C13—H13	0.9500	C41—H41	0.9500
C14—C15	1.379 (7)	C42—C43	1.371 (7)
C14—H14	0.9500	C42—H42	0.9500
C15—C16	1.390 (6)	C43—C44	1.379 (7)
C15—H15	0.9500	C43—H43	0.9500
C16—H16	0.9500	C44—H44	0.9500
C17—C22	1.389 (6)	C45—C46	1.388 (6)
C17—C18	1.399 (6)	C45—C50	1.390 (7)
C18—C19	1.377 (6)	C46—C47	1.386 (7)
C18—H18	0.9500	C46—H46	0.9500
C19—C20	1.375 (7)	C47—C48	1.367 (8)
C19—H19	0.9500	C47—H47	0.9500
C20—C21	1.394 (7)	C48—C49	1.387 (7)
C20—H20	0.9500	C48—H48	0.9500
C21—C22	1.384 (6)	C49—C50	1.384 (7)
C21—H21	0.9500	C49—H49	0.9500
C22—H22	0.9500	C50—H50	0.9500
C23—C24	1.387 (6)	C51—C56	1.389 (7)
C23—C28	1.396 (6)	C51—C52	1.396 (7)
C24—C25	1.392 (6)	C52—C53	1.380 (8)
C24—H24	0.9500	C52—H52	0.9500
C25—C26	1.382 (7)	C53—C54	1.367 (9)
C25—H25	0.9500	C53—H53	0.9500
C26—C27	1.387 (7)	C54—C55	1.362 (9)
C26—H26	0.9500	C54—H54	0.9500
C27—C28	1.379 (6)	C55—C56	1.379 (7)
C27—H27	0.9500	C55—H55	0.9500
C28—H28	0.9500	C56—H56	0.9500

C1—Mo1—C2	74.69 (19)	C29—Mo2—C30	74.2 (2)
C1—Mo1—C3	102.06 (18)	C29—Mo2—C31	98.75 (19)
C2—Mo1—C3	86.17 (19)	C30—Mo2—C31	86.17 (19)
C1—Mo1—N2	175.17 (16)	C29—Mo2—N4	175.61 (17)
C2—Mo1—N2	105.77 (17)	C30—Mo2—N4	106.20 (18)
C3—Mo1—N2	82.77 (15)	C31—Mo2—N4	85.63 (16)
C1—Mo1—S1	91.66 (14)	C29—Mo2—S3	94.65 (15)
C2—Mo1—S1	122.74 (14)	C30—Mo2—S3	125.80 (14)
C3—Mo1—S1	41.95 (13)	C31—Mo2—S3	42.35 (13)
N2—Mo1—S1	92.07 (10)	N4—Mo2—S3	88.60 (11)
C1—Mo1—S2	111.36 (14)	C29—Mo2—S4	111.94 (15)
C2—Mo1—S2	81.89 (14)	C30—Mo2—S4	80.62 (15)
C3—Mo1—S2	139.81 (12)	C31—Mo2—S4	141.47 (13)
N2—Mo1—S2	64.16 (10)	N4—Mo2—S4	64.05 (11)
S1—Mo1—S2	150.87 (4)	S3—Mo2—S4	147.71 (4)
C1—Mo1—P1	86.29 (14)	C29—Mo2—P2	85.62 (14)
C2—Mo1—P1	144.36 (14)	C30—Mo2—P2	140.90 (14)
C3—Mo1—P1	127.78 (13)	C31—Mo2—P2	130.56 (13)
N2—Mo1—P1	90.83 (9)	N4—Mo2—P2	91.54 (9)
S1—Mo1—P1	86.98 (4)	S3—Mo2—P2	88.30 (4)
S2—Mo1—P1	77.35 (4)	S4—Mo2—P2	76.33 (4)
C3—S1—Mo1	55.04 (16)	C31—S3—Mo2	55.22 (17)
C6—S2—Mo1	82.13 (16)	C34—S4—Mo2	82.35 (17)
C23—P1—C17	105.9 (2)	C51—P2—C45	105.3 (2)
C23—P1—C11	103.22 (19)	C51—P2—C39	101.8 (2)
C17—P1—C11	99.83 (19)	C45—P2—C39	101.3 (2)
C23—P1—Mo1	112.48 (14)	C51—P2—Mo2	114.16 (15)
C17—P1—Mo1	116.98 (14)	C45—P2—Mo2	115.02 (16)
C11—P1—Mo1	116.74 (15)	C39—P2—Mo2	117.41 (16)
C3—N1—C4	123.4 (4)	C31—N3—C33	121.4 (4)
C3—N1—C5	121.1 (4)	C31—N3—C32	123.0 (4)
C4—N1—C5	115.3 (4)	C33—N3—C32	115.5 (4)
C10—N2—C6	118.6 (4)	C38—N4—C34	118.8 (4)
C10—N2—Mo1	138.9 (3)	C38—N4—Mo2	137.9 (3)
C6—N2—Mo1	102.5 (3)	C34—N4—Mo2	103.3 (3)
O1—C1—Mo1	178.3 (4)	O3—C29—Mo2	176.9 (4)
O2—C2—Mo1	170.3 (4)	O4—C30—Mo2	170.4 (5)
N1—C3—S1	127.4 (4)	N3—C31—S3	126.8 (4)
N1—C3—Mo1	148.5 (4)	N3—C31—Mo2	150.8 (4)
S1—C3—Mo1	83.00 (19)	S3—C31—Mo2	82.43 (19)
N1—C4—H4A	109.5	N3—C32—H32A	109.5
N1—C4—H4B	109.5	N3—C32—H32B	109.5
H4A—C4—H4B	109.5	H32A—C32—H32B	109.5
N1—C4—H4C	109.5	N3—C32—H32C	109.5
H4A—C4—H4C	109.5	H32A—C32—H32C	109.5
H4B—C4—H4C	109.5	H32B—C32—H32C	109.5
N1—C5—H5A	109.5	N3—C33—H33A	109.5
N1—C5—H5B	109.5	N3—C33—H33B	109.5
H5A—C5—H5B	109.5	H33A—C33—H33B	109.5
N1—C5—H5C	109.5	N3—C33—H33C	109.5
H5A—C5—H5C	109.5	H33A—C33—H33C	109.5
H5B—C5—H5C	109.5	H33B—C33—H33C	109.5
N2—C6—C7	121.7 (4)	N4—C34—C35	121.6 (5)
N2—C6—S2	111.2 (3)	N4—C34—S4	110.3 (3)
C7—C6—S2	127.1 (4)	C35—C34—S4	128.1 (4)
C8—C7—C6	118.2 (5)	C36—C35—C34	118.3 (5)
C8—C7—H7	120.9	C36—C35—H35	120.8
C6—C7—H7	120.9	C34—C35—H35	120.8
C9—C8—C7	120.2 (5)	C35—C36—C37	121.4 (5)
C9—C8—H8	119.9	C35—C36—H36	119.3
C7—C8—H8	119.9	C37—C36—H36	119.3
C10—C9—C8	118.6 (5)	C38—C37—C36	117.9 (5)
C10—C9—H9	120.7	C38—C37—H37	121.0
C8—C9—H9	120.7	C36—C37—H37	121.0
N2—C10—C9	122.8 (5)	N4—C38—C37	122.0 (5)
N2—C10—H10	118.6	N4—C38—H38	119.0
C9—C10—H10	118.6	C37—C38—H38	119.0
C16—C11—C12	118.9 (4)	C40—C39—C44	117.9 (4)
C16—C11—P1	119.3 (3)	C40—C39—P2	120.8 (4)
C12—C11—P1	121.6 (3)	C44—C39—P2	121.3 (4)
C13—C12—C11	120.1 (5)	C39—C40—C41	120.6 (5)
C13—C12—H12	120.0	C39—C40—H40	119.7
C11—C12—H12	120.0	C41—C40—H40	119.7
C14—C13—C12	120.5 (5)	C42—C41—C40	120.3 (5)
C14—C13—H13	119.8	C42—C41—H41	119.9
C12—C13—H13	119.8	C40—C41—H41	119.9
C13—C14—C15	120.2 (5)	C43—C42—C41	119.8 (5)
C13—C14—H14	119.9	C43—C42—H42	120.1
C15—C14—H14	119.9	C41—C42—H42	120.1
C14—C15—C16	119.5 (5)	C42—C43—C44	120.1 (5)
C14—C15—H15	120.3	C42—C43—H43	119.9
C16—C15—H15	120.3	C44—C43—H43	119.9
C11—C16—C15	120.9 (5)	C43—C44—C39	121.2 (5)
C11—C16—H16	119.6	C43—C44—H44	119.4
C15—C16—H16	119.6	C39—C44—H44	119.4
C22—C17—C18	118.5 (4)	C46—C45—C50	118.3 (5)
C22—C17—P1	121.3 (3)	C46—C45—P2	120.8 (4)
C18—C17—P1	120.1 (3)	C50—C45—P2	120.9 (4)
C19—C18—C17	120.7 (4)	C47—C46—C45	120.4 (5)
C19—C18—H18	119.6	C47—C46—H46	119.8
C17—C18—H18	119.6	C45—C46—H46	119.8
C20—C19—C18	120.1 (5)	C48—C47—C46	120.6 (5)
C20—C19—H19	119.9	C48—C47—H47	119.7
C18—C19—H19	119.9	C46—C47—H47	119.7
C19—C20—C21	120.3 (5)	C47—C48—C49	120.2 (5)
C19—C20—H20	119.9	C47—C48—H48	119.9
C21—C20—H20	119.9	C49—C48—H48	119.9
C22—C21—C20	119.4 (5)	C50—C49—C48	119.1 (5)
C22—C21—H21	120.3	C50—C49—H49	120.5
C20—C21—H21	120.3	C48—C49—H49	120.5
C21—C22—C17	120.9 (4)	C49—C50—C45	121.4 (5)
C21—C22—H22	119.5	C49—C50—H50	119.3
C17—C22—H22	119.5	C45—C50—H50	119.3
C24—C23—C28	119.3 (4)	C56—C51—C52	118.4 (5)
C24—C23—P1	124.2 (3)	C56—C51—P2	117.1 (4)
C28—C23—P1	116.5 (3)	C52—C51—P2	124.5 (4)
C23—C24—C25	119.8 (4)	C53—C52—C51	119.6 (6)
C23—C24—H24	120.1	C53—C52—H52	120.2
C25—C24—H24	120.1	C51—C52—H52	120.2
C26—C25—C24	120.5 (4)	C54—C53—C52	120.7 (6)
C26—C25—H25	119.8	C54—C53—H53	119.7
C24—C25—H25	119.8	C52—C53—H53	119.7
C25—C26—C27	119.8 (5)	C55—C54—C53	120.7 (6)
C25—C26—H26	120.1	C55—C54—H54	119.6
C27—C26—H26	120.1	C53—C54—H54	119.6
C28—C27—C26	119.9 (5)	C54—C55—C56	119.4 (6)
C28—C27—H27	120.0	C54—C55—H55	120.3
C26—C27—H27	120.0	C56—C55—H55	120.3
C27—C28—C23	120.7 (4)	C55—C56—C51	121.2 (5)
C27—C28—H28	119.7	C55—C56—H56	119.4
C23—C28—H28	119.7	C51—C56—H56	119.4

Experimental details

Crystal data
Chemical formula	[Mo(C₃H₆NS)(C₅H₄NS)(C₁₈H₁₅P)(CO)₂]
M_r	612.53
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	150
a, b, c (Å)	20.0947 (8), 15.8720 (6), 17.8596 (7)
β (°)	107.563 (1)
V (Å³)	5430.7 (4)
Z	8
Radiation type	Mo Kα
µ (mm⁻¹)	0.72
Crystal size (mm)	0.35 × 0.06 × 0.04

Data collection
Diffractometer	Bruker SMART APEX CCD area-detector diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2007)
T_min, T_max	0.95, 0.97
No. of measured, independent and observed [I > 2σ(I)] reflections	41353, 12460, 8888
R_int	0.089
(sin θ/λ)_max (Å⁻¹)	0.650

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.063, 0.123, 1.08
No. of reflections	12460
No. of parameters	653
No. of restraints	1
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.96, −0.78

Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Acknowledgements

We thank the National Science Council of the Republic of China for financial support (NSC98–2113-M-241–011-MY2).

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