[μ-1,2-Bis(diphenyl­phosphino)methane-κ2P:P′]bis­{[(Z)-O-ethyl N-(4-nitro­phen­yl)thio­carbamato-κS]gold(I)}

Ho, S.Y.; Tiekink, E.R.T.

doi:10.1107/S1600536810016326

metal-organic compounds

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 66| Part 6| June 2010| Pages m622-m623

https://doi.org/10.1107/S1600536810016326

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[μ-1,2-Bis(diphenylphosphino)methane-κ²P:P′]bis{[(Z)-O-ethyl N-(4-nitrophenyl)thiocarbamato-κS]gold(I)}

Soo Yei Ho ^a and Edward R. T. Tiekink ^b ^*

^aDepartment of Chemistry, National University of Singapore, Singapore 117543, and ^bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
^*Correspondence e-mail: edward.tiekink@gmail.com

(Received 4 May 2010; accepted 4 May 2010; online 8 May 2010)

Each gold atom in the binuclear title compound, [Au₂(C₉H₉N₂O₃S)₂(C₂₅H₂₂P₂)], is coordinated within an S,P-donor set that defines a slightly distorted linear geometry [S—Au—P angles = 172.77 (6) and 173.84 (6)°], with the distortion due in part to a close intramolecular Au⋯O contact [2.968 (11) and 2.963 (4) Å]. The molecule adopts a U-shaped conformation allowing for the formation of an aurophilic Au⋯Au interaction [3.2320 (5) Å]. Molecules are consolidated in the crystal structure by C—H⋯π interactions. Disorder was noted for one of the ethoxy groups with two orientations being resolved in a 0.679 (16):0.321 (16) ratio.

Related literature

For the structural systematics and luminescence properties of phosphinegold(I) carbonimidothioates, see: Ho et al. (2006 ); Ho & Tiekink (2007 ); Kuan et al. (2008 ). For the synthesis, see: Hall et al. (1993 ).

Experimental

Crystal data

[Au₂(C₉H₉N₂O₃S)₂(C₂₅H₂₂P₂)]
M_r = 1228.83
Monoclinic, I 2/a
a = 24.400 (3) Å
b = 16.1419 (16) Å
c = 24.594 (2) Å
β = 110.252 (9)°
V = 9087.9 (16) Å³
Z = 8
Mo Kα radiation
μ = 6.66 mm⁻¹
T = 223 K
0.31 × 0.13 × 0.05 mm

Data collection

Bruker SMART CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2000 ) T_min = 0.445, T_max = 1
31967 measured reflections
10427 independent reflections
7923 reflections with I > 2σ(I)
R_int = 0.053

Refinement

R[F² > 2σ(F²)] = 0.039
wR(F²) = 0.110
S = 1.02
10427 reflections
549 parameters
28 restraints
H-atom parameters constrained
Δρ_max = 1.52 e Å⁻³
Δρ_min = −1.19 e Å⁻³

Table 1
Selected bond lengths (Å)

Au1—P1	2.2582 (15)
Au1—S1	2.3087 (16)
Au2—P2	2.2421 (15)
Au2—S2	2.3012 (16)

Table 2
Hydrogen-bond geometry (Å, °)

Cg1 and Cg2 are the centroids of the C2–C7 and C38–C43 rings, respectively.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C41—H41⋯Cg1ⁱ	0.94	2.73	3.576 (8)	151
C17—H17b⋯Cg2ⁱⁱ	0.98	2.87	3.821 (11)	163
Symmetry codes: (i) -x+2, -y+2, -z+1; (ii) $[-x+{\script{3\over 2}}, -y+{\script{3\over 2}}, -z+{\script{1\over 2}}]$ .

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT ; program(s) used to solve structure: PATTY in DIRDIF92 (Beurskens et al., 1992 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ); molecular graphics: ORTEP-3 (Farrugia, 1997 ) and DIAMOND (Brandenburg, 2006 ); software used to prepare material for publication: publCIF (Westrip, 2010 ).

Supporting information

Crystal structure: contains datablocks global, I. DOI: https://doi.org/10.1107/S1600536810016326/hb5435sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810016326/hb5435Isup2.hkl

checkCIF report

Comment top

The investigation of dinuclear molecules related to molecules with the general formula R₃PAu[SC(OR')═ NR''], for R, R' and R'' = alkyl and aryl,have proved useful for crystal engineering studies, in particular in terms of a competition between intra- and inter-molecular aurophilic (Au···Au) interactions, and the influence of these upon luminescence (Ho et al., 2006; Ho & Tiekink, 2007; Kuan et al., 2008). The title compound, (I), is the ethoxy analogue of the previously reported methoxy derivative (Ho et al., 2006).

The nearly linear SP coordination geometry observed for each Au atom, Fig. 1, is defined by one P atom of the bidentate bridging diphosphine ligand and the thiolate-S derived from the carbonimidothioate anion, Table 1. Deviations from the ideal linearity [S—Au—P = 172.77 (6) and 173.84 (6) °] is traced to the close intramolecular Au···O contacts [2.968 (11) and 2.963 (4) Å]. Overall, the conformation of the dinuclear molecule is a U-shape which allows for the formation of an intramolecular Au···Au contact of 3.2320 (5) Å which is longer than 3.1589 (4) Å found in the methoxy derivative (Ho et al. 2006).

The major feature of the crystal packing is the presence of C–H···π interactions, Table 2 and Fig. 2.

Related literature top

For the structural systematics and luminescence properties of phosphinegold(I) carbonimidothioates, see: Ho et al. (2006); Ho & Tiekink (2007); Kuan et al. (2008). For the synthesis, see Hall et al. (1993).

Experimental top

Compound (I) was prepared following the standard literature procedure from the reaction of [Ph₂PCH₂PPh₂](AuCl)₂ and EtOC(═S)N(H)(C₆H₄NO₂-4) in the presence of NaOH (Hall et al., 1993). Yellow blocks of (I) were obtained by the slow evaporation of a CHCl₃/hexane (3/1) solution held at room temperature; m.pt. 483 K. Analysis, Found (Calculated): C 41.97 (42.03); H 3.67 (3.28); N 4.09 (4.56); S 4.64 (5.20). IR (KBr, cm^-1): ν(C–S) 1103 (s), 851 (m); ν(C–N) 1580 (m); ν(C–O) 1144 (s). ³¹P{¹H} (CDCl₃) NMR: δ 29.2 p.p.m.

Structure description top

The major feature of the crystal packing is the presence of C–H···π interactions, Table 2 and Fig. 2.

For the structural systematics and luminescence properties of phosphinegold(I) carbonimidothioates, see: Ho et al. (2006); Ho & Tiekink (2007); Kuan et al. (2008). For the synthesis, see Hall et al. (1993).

Computing details top

Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: PATTY in DIRDIF92 (Beurskens et al., 1992); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top

	Fig. 1. Molecular structure of (I) showing displacement ellipsoids at the 50% probability level. Only the major component of the disordered ethoxy group is shown for reasons of clarity.
	Fig. 2. A view in projection down the b axis of the crystal packing in (I). The C–H···π contacts are shown as purple dashed lines.

[µ-1,2-Bis(diphenylphosphino)methane- κ²P:P']bis{[(Z)-O-ethyl N-(4-nitrophenyl)thiocarbamato-κS]gold(I)} top

Crystal data top

[Au₂(C₉H₉N₂O₃S)₂(C₂₅H₂₂P₂)]	F(000) = 4751
M_r = 1228.83	D_x = 1.796 Mg m⁻³
Monoclinic, I2/a	Mo Kα radiation, λ = 0.71069 Å
Hall symbol: -I 2ya	Cell parameters from 5597 reflections
a = 24.400 (3) Å	θ = 2.5–24.2°
b = 16.1419 (16) Å	µ = 6.66 mm⁻¹
c = 24.594 (2) Å	T = 223 K
β = 110.252 (9)°	Block, yellow
V = 9087.9 (16) Å³	0.31 × 0.13 × 0.05 mm
Z = 8

Data collection top

Bruker SMART CCD diffractometer	10427 independent reflections
Radiation source: fine-focus sealed tube	7923 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.053
ω scans	θ_max = 27.5°, θ_min = 1.5°
Absorption correction: multi-scan (SADABS; Bruker, 2000)	h = −27→31
T_min = 0.445, T_max = 1	k = −20→20
31967 measured reflections	l = −31→24

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)] = 0.039	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.110	H-atom parameters constrained
S = 1.02	w = 1/[σ²(F_o²) + (0.0567P)²] where P = (F_o² + 2F_c²)/3
10427 reflections	(Δ/σ)_max = 0.001
549 parameters	Δρ_max = 1.52 e Å⁻³
28 restraints	Δρ_min = −1.19 e Å⁻³

Crystal data top

[Au₂(C₉H₉N₂O₃S)₂(C₂₅H₂₂P₂)]	V = 9087.9 (16) Å³
M_r = 1228.83	Z = 8
Monoclinic, I2/a	Mo Kα radiation
a = 24.400 (3) Å	µ = 6.66 mm⁻¹
b = 16.1419 (16) Å	T = 223 K
c = 24.594 (2) Å	0.31 × 0.13 × 0.05 mm
β = 110.252 (9)°

Data collection top

Bruker SMART CCD diffractometer	10427 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2000)	7923 reflections with I > 2σ(I)
T_min = 0.445, T_max = 1	R_int = 0.053
31967 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.039	28 restraints
wR(F²) = 0.110	H-atom parameters constrained
S = 1.02	Δρ_max = 1.52 e Å⁻³
10427 reflections	Δρ_min = −1.19 e Å⁻³
549 parameters

Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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	Occ. (<1)
Au1	1.009521 (10)	0.859132 (13)	0.324297 (11)	0.03469 (8)
Au2	0.879170 (10)	0.815714 (13)	0.237856 (11)	0.03270 (8)
S1	0.99717 (8)	0.99888 (10)	0.33639 (8)	0.0448 (4)
S2	0.84758 (7)	0.93438 (9)	0.18429 (8)	0.0408 (4)
P1	1.03352 (6)	0.72491 (9)	0.31943 (7)	0.0290 (3)
P2	0.90430 (7)	0.69252 (9)	0.28151 (7)	0.0288 (3)
O2	0.9091 (3)	1.4064 (3)	0.3450 (3)	0.0745 (18)
O3	0.9791 (3)	1.4426 (3)	0.3166 (3)	0.0731 (17)
O4	0.7826 (2)	0.8134 (3)	0.1245 (2)	0.0553 (14)
O5	0.7025 (4)	1.3205 (4)	0.1153 (3)	0.096 (3)
O6	0.7716 (4)	1.3265 (4)	0.0808 (4)	0.111 (3)
N1	1.0713 (3)	1.0927 (3)	0.4211 (3)	0.0595 (18)
N2	0.9560 (3)	1.3930 (3)	0.3388 (3)	0.0514 (16)
N3	0.7433 (2)	0.9417 (4)	0.0988 (3)	0.0548 (17)
N4	0.7390 (4)	1.2877 (4)	0.0992 (3)	0.071 (2)
C1	1.0559 (3)	1.0213 (4)	0.4003 (3)	0.0517 (19)
C2	1.0404 (3)	1.1643 (4)	0.3968 (3)	0.0430 (17)
C3	0.9831 (3)	1.1771 (4)	0.3941 (3)	0.0470 (17)
H3	0.9633	1.1343	0.4055	0.056*
C4	0.9546 (3)	1.2513 (4)	0.3751 (3)	0.0421 (16)
H4	0.9160	1.2596	0.3735	0.051*
C5	0.9849 (3)	1.3130 (3)	0.3584 (3)	0.0366 (14)
C6	1.0423 (3)	1.3030 (4)	0.3607 (3)	0.0422 (16)
H6	1.0622	1.3460	0.3496	0.051*
C7	1.0689 (3)	1.2284 (4)	0.3796 (3)	0.0458 (16)
H7	1.1075	1.2202	0.3810	0.055*
O1	1.0910 (5)	0.9539 (9)	0.4226 (5)	0.053 (3)	0.679 (16)
C8	1.1390 (6)	0.9687 (10)	0.4772 (5)	0.071 (4)	0.679 (16)
H8A	1.1583	1.0211	0.4749	0.085*	0.679 (16)
H8B	1.1679	0.9241	0.4840	0.085*	0.679 (16)
C9	1.1167 (9)	0.9720 (13)	0.5257 (9)	0.129 (7)	0.679 (16)
H9A	1.0805	1.0033	0.5140	0.194*	0.679 (16)
H9B	1.1453	0.9986	0.5587	0.194*	0.679 (16)
H9C	1.1094	0.9161	0.5361	0.194*	0.679 (16)
O1A	1.0752 (12)	0.955 (2)	0.4357 (11)	0.053 (3)	0.321 (16)
C8A	1.1194 (13)	0.962 (3)	0.4932 (13)	0.071 (4)	0.321 (16)
H8C	1.1197	0.9118	0.5154	0.085*	0.321 (16)
H8D	1.1104	1.0092	0.5139	0.085*	0.321 (16)
C9A	1.1774 (18)	0.974 (3)	0.488 (2)	0.129 (7)	0.321 (16)
H9D	1.1897	0.9235	0.4746	0.194*	0.321 (16)
H9E	1.2055	0.9895	0.5254	0.194*	0.321 (16)
H9F	1.1751	1.0184	0.4603	0.194*	0.321 (16)
C10	0.7841 (3)	0.8975 (4)	0.1301 (3)	0.0420 (16)
C11	0.7461 (3)	1.0285 (4)	0.1030 (3)	0.0500 (19)
C12	0.7136 (3)	1.0705 (4)	0.1311 (3)	0.0457 (17)
H12	0.6928	1.0406	0.1504	0.055*
C13	0.7120 (3)	1.1557 (5)	0.1307 (3)	0.0523 (18)
H13	0.6905	1.1844	0.1499	0.063*
C14	0.7421 (3)	1.1983 (4)	0.1020 (3)	0.0501 (19)
C15	0.7755 (4)	1.1598 (5)	0.0743 (4)	0.064 (2)
H15	0.7970	1.1910	0.0564	0.076*
C16	0.7768 (3)	1.0742 (5)	0.0736 (4)	0.060 (2)
H16	0.7981	1.0465	0.0537	0.072*
C17	0.7306 (4)	0.7781 (5)	0.0805 (4)	0.073 (3)
H17A	0.7252	0.8022	0.0425	0.087*
H17B	0.6957	0.7900	0.0903	0.087*
C18	0.7394 (5)	0.6876 (5)	0.0793 (5)	0.105 (4)
H18A	0.7737	0.6764	0.0689	0.157*
H18B	0.7054	0.6624	0.0508	0.157*
H18C	0.7450	0.6644	0.1172	0.157*
C19	0.9736 (2)	0.6572 (3)	0.2764 (3)	0.0286 (12)
H19A	0.9712	0.6578	0.2358	0.034*
H19B	0.9814	0.6001	0.2907	0.034*
C20	1.0897 (2)	0.7147 (4)	0.2871 (3)	0.0292 (12)
C21	1.1218 (3)	0.7832 (4)	0.2835 (3)	0.0387 (14)
H21	1.1139	0.8347	0.2970	0.046*
C22	1.1651 (3)	0.7771 (4)	0.2603 (3)	0.0447 (16)
H22	1.1870	0.8243	0.2584	0.054*
C23	1.1770 (3)	0.7024 (4)	0.2398 (3)	0.0461 (17)
H23	1.2065	0.6991	0.2234	0.055*
C24	1.1458 (3)	0.6324 (4)	0.2431 (3)	0.0434 (16)
H24	1.1542	0.5812	0.2296	0.052*
C25	1.1021 (3)	0.6386 (4)	0.2667 (3)	0.0377 (14)
H25	1.0805	0.5913	0.2689	0.045*
C26	1.0615 (3)	0.6760 (4)	0.3902 (3)	0.0346 (14)
C27	1.0727 (3)	0.7253 (5)	0.4402 (3)	0.0447 (16)
H27	1.0668	0.7829	0.4369	0.054*
C28	1.0923 (3)	0.6884 (6)	0.4935 (3)	0.061 (2)
H28	1.1002	0.7213	0.5269	0.073*
C29	1.1006 (3)	0.6060 (6)	0.4992 (3)	0.061 (2)
H29	1.1136	0.5820	0.5363	0.074*
C30	1.0899 (3)	0.5563 (5)	0.4507 (3)	0.0519 (19)
H30	1.0957	0.4987	0.4551	0.062*
C31	1.0707 (3)	0.5910 (4)	0.3953 (3)	0.0413 (15)
H31	1.0642	0.5578	0.3623	0.050*
C32	0.8515 (2)	0.6121 (4)	0.2458 (3)	0.0328 (13)
C33	0.8615 (3)	0.5573 (4)	0.2072 (3)	0.0415 (16)
H33	0.8973	0.5578	0.2006	0.050*
C34	0.8178 (3)	0.5010 (4)	0.1779 (3)	0.0481 (17)
H34	0.8242	0.4634	0.1515	0.058*
C35	0.7657 (3)	0.4999 (4)	0.1874 (3)	0.055 (2)
H35	0.7364	0.4623	0.1670	0.066*
C36	0.7564 (4)	0.5527 (5)	0.2257 (4)	0.062 (2)
H36	0.7208	0.5513	0.2324	0.075*
C37	0.7994 (3)	0.6095 (5)	0.2554 (4)	0.0527 (19)
H37	0.7927	0.6461	0.2822	0.063*
C38	0.9131 (2)	0.6901 (3)	0.3575 (3)	0.0315 (13)
C39	0.9128 (3)	0.7625 (4)	0.3875 (3)	0.0413 (15)
H39	0.9056	0.8133	0.3675	0.050*
C40	0.9232 (3)	0.7613 (5)	0.4467 (3)	0.0521 (19)
H40	0.9224	0.8109	0.4665	0.063*
C41	0.9344 (3)	0.6881 (5)	0.4761 (3)	0.054 (2)
H41	0.9424	0.6876	0.5163	0.065*
C42	0.9342 (3)	0.6141 (5)	0.4468 (3)	0.056 (2)
H42	0.9413	0.5637	0.4672	0.067*
C43	0.9234 (3)	0.6149 (4)	0.3873 (3)	0.0415 (15)
H43	0.9232	0.5651	0.3673	0.050*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Au1	0.03798 (14)	0.02598 (12)	0.03917 (15)	0.00068 (9)	0.01218 (11)	−0.00119 (10)
Au2	0.03173 (13)	0.02833 (12)	0.03663 (14)	0.00304 (9)	0.01005 (10)	0.00221 (10)
S1	0.0507 (10)	0.0294 (8)	0.0440 (10)	0.0059 (7)	0.0033 (8)	−0.0017 (7)
S2	0.0376 (8)	0.0290 (7)	0.0470 (10)	0.0019 (6)	0.0034 (7)	0.0043 (7)
P1	0.0299 (7)	0.0259 (7)	0.0310 (8)	−0.0013 (6)	0.0102 (6)	0.0011 (6)
P2	0.0301 (8)	0.0263 (7)	0.0300 (8)	−0.0007 (6)	0.0105 (6)	−0.0013 (6)
O2	0.058 (4)	0.046 (3)	0.119 (6)	0.014 (3)	0.030 (4)	−0.007 (3)
O3	0.085 (4)	0.040 (3)	0.088 (5)	0.002 (3)	0.023 (4)	0.014 (3)
O4	0.047 (3)	0.039 (3)	0.065 (4)	0.001 (2)	0.000 (3)	−0.002 (2)
O5	0.152 (7)	0.048 (4)	0.078 (5)	0.023 (4)	0.028 (5)	0.001 (3)
O6	0.141 (7)	0.057 (4)	0.117 (7)	−0.035 (4)	0.023 (6)	0.013 (4)
N1	0.064 (4)	0.028 (3)	0.064 (4)	0.005 (3)	−0.007 (3)	−0.005 (3)
N2	0.057 (4)	0.030 (3)	0.057 (4)	0.001 (3)	0.007 (3)	−0.001 (3)
N3	0.039 (3)	0.046 (3)	0.062 (4)	0.005 (3)	−0.005 (3)	0.001 (3)
N4	0.098 (6)	0.043 (4)	0.049 (4)	−0.004 (4)	−0.006 (4)	−0.001 (3)
C1	0.053 (4)	0.032 (3)	0.057 (5)	0.012 (3)	0.002 (4)	0.003 (3)
C2	0.057 (4)	0.029 (3)	0.033 (4)	0.007 (3)	0.003 (3)	−0.005 (3)
C3	0.057 (4)	0.034 (3)	0.053 (5)	−0.008 (3)	0.024 (4)	−0.004 (3)
C4	0.041 (4)	0.036 (3)	0.045 (4)	−0.008 (3)	0.010 (3)	−0.014 (3)
C5	0.045 (4)	0.028 (3)	0.035 (4)	0.003 (3)	0.011 (3)	−0.005 (3)
C6	0.063 (4)	0.034 (3)	0.038 (4)	−0.006 (3)	0.028 (3)	−0.005 (3)
C7	0.040 (4)	0.048 (4)	0.051 (4)	0.002 (3)	0.018 (3)	−0.007 (3)
O1	0.052 (7)	0.036 (3)	0.055 (6)	0.020 (5)	−0.003 (4)	−0.005 (5)
C8	0.070 (7)	0.061 (5)	0.071 (6)	0.016 (5)	0.008 (5)	0.005 (5)
C9	0.137 (9)	0.116 (8)	0.122 (9)	0.011 (6)	0.028 (6)	0.001 (6)
O1A	0.052 (7)	0.036 (3)	0.055 (6)	0.020 (5)	−0.003 (4)	−0.005 (5)
C8A	0.070 (7)	0.061 (5)	0.071 (6)	0.016 (5)	0.008 (5)	0.005 (5)
C9A	0.137 (9)	0.116 (8)	0.122 (9)	0.011 (6)	0.028 (6)	0.001 (6)
C10	0.038 (3)	0.034 (3)	0.049 (4)	0.000 (3)	0.009 (3)	0.005 (3)
C11	0.030 (3)	0.045 (4)	0.061 (5)	0.009 (3)	−0.003 (3)	0.013 (4)
C12	0.044 (4)	0.048 (4)	0.039 (4)	−0.001 (3)	0.008 (3)	0.004 (3)
C13	0.054 (5)	0.058 (4)	0.041 (4)	0.006 (4)	0.012 (4)	−0.006 (4)
C14	0.047 (4)	0.042 (4)	0.045 (4)	0.002 (3)	−0.004 (3)	0.006 (3)
C15	0.047 (4)	0.064 (5)	0.075 (6)	−0.011 (4)	0.014 (4)	0.014 (5)
C16	0.039 (4)	0.066 (5)	0.076 (6)	0.011 (4)	0.021 (4)	−0.002 (4)
C17	0.056 (5)	0.061 (5)	0.077 (6)	−0.006 (4)	−0.008 (5)	−0.010 (5)
C18	0.108 (9)	0.053 (5)	0.126 (11)	−0.011 (5)	0.005 (8)	−0.025 (6)
C19	0.031 (3)	0.026 (3)	0.029 (3)	−0.001 (2)	0.011 (2)	−0.001 (2)
C20	0.022 (3)	0.035 (3)	0.029 (3)	−0.002 (2)	0.007 (2)	0.005 (3)
C21	0.035 (3)	0.036 (3)	0.039 (4)	−0.002 (3)	0.005 (3)	0.001 (3)
C22	0.036 (3)	0.048 (4)	0.048 (4)	−0.010 (3)	0.013 (3)	0.010 (3)
C23	0.035 (4)	0.057 (4)	0.049 (4)	0.001 (3)	0.019 (3)	0.008 (3)
C24	0.044 (4)	0.043 (4)	0.048 (4)	0.007 (3)	0.023 (3)	0.006 (3)
C25	0.041 (3)	0.031 (3)	0.043 (4)	0.002 (3)	0.016 (3)	0.000 (3)
C26	0.025 (3)	0.044 (3)	0.032 (3)	−0.001 (2)	0.005 (3)	0.004 (3)
C27	0.042 (4)	0.052 (4)	0.037 (4)	0.000 (3)	0.009 (3)	−0.001 (3)
C28	0.056 (5)	0.092 (7)	0.026 (4)	0.001 (4)	0.003 (3)	−0.001 (4)
C29	0.044 (4)	0.097 (7)	0.032 (4)	0.002 (4)	−0.001 (3)	0.027 (4)
C30	0.044 (4)	0.054 (4)	0.054 (5)	0.007 (3)	0.012 (4)	0.026 (4)
C31	0.039 (4)	0.041 (3)	0.043 (4)	0.004 (3)	0.015 (3)	0.008 (3)
C32	0.029 (3)	0.032 (3)	0.037 (3)	0.001 (2)	0.010 (3)	0.005 (3)
C33	0.034 (3)	0.036 (3)	0.051 (4)	−0.001 (3)	0.010 (3)	−0.007 (3)
C34	0.051 (4)	0.036 (3)	0.049 (4)	−0.003 (3)	0.006 (3)	−0.010 (3)
C35	0.058 (5)	0.041 (4)	0.052 (5)	−0.021 (3)	0.001 (4)	−0.002 (4)
C36	0.052 (5)	0.069 (5)	0.070 (6)	−0.026 (4)	0.026 (4)	−0.007 (5)
C37	0.049 (4)	0.057 (4)	0.059 (5)	−0.012 (4)	0.028 (4)	−0.006 (4)
C38	0.029 (3)	0.034 (3)	0.033 (3)	−0.002 (2)	0.011 (3)	−0.003 (3)
C39	0.040 (4)	0.043 (4)	0.040 (4)	0.002 (3)	0.013 (3)	−0.003 (3)
C40	0.055 (4)	0.058 (5)	0.044 (4)	−0.003 (4)	0.019 (4)	−0.018 (4)
C41	0.054 (5)	0.076 (6)	0.033 (4)	−0.005 (4)	0.015 (3)	−0.003 (4)
C42	0.066 (5)	0.061 (5)	0.042 (4)	−0.008 (4)	0.021 (4)	0.013 (4)
C43	0.054 (4)	0.033 (3)	0.044 (4)	−0.001 (3)	0.025 (3)	0.002 (3)

Geometric parameters (Å, º) top

Au1—P1	2.2582 (15)	C14—C15	1.378 (12)
Au1—S1	2.3087 (16)	C15—C16	1.381 (11)
Au2—P2	2.2421 (15)	C15—H15	0.9400
Au2—S2	2.3012 (16)	C16—H16	0.9400
Au1—Au2	3.2320 (5)	C17—C18	1.479 (11)
S1—C1	1.759 (8)	C17—H17A	0.9800
S2—C10	1.761 (7)	C17—H17B	0.9800
P1—C20	1.815 (6)	C18—H18A	0.9700
P1—C26	1.816 (6)	C18—H18B	0.9700
P1—C19	1.839 (6)	C18—H18C	0.9700
P2—C38	1.808 (6)	C19—H19A	0.9800
P2—C32	1.826 (6)	C19—H19B	0.9800
P2—C19	1.831 (6)	C20—C21	1.377 (8)
O2—N2	1.224 (8)	C20—C25	1.399 (8)
O3—N2	1.213 (8)	C21—C22	1.366 (9)
O4—C10	1.364 (7)	C21—H21	0.9400
O4—C17	1.468 (9)	C22—C23	1.376 (10)
O5—N4	1.215 (11)	C22—H22	0.9400
O6—N4	1.215 (11)	C23—C24	1.381 (9)
N1—C1	1.264 (9)	C23—H23	0.9400
N1—C2	1.397 (8)	C24—C25	1.383 (9)
N2—C5	1.470 (8)	C24—H24	0.9400
N3—C10	1.249 (8)	C25—H25	0.9400
N3—C11	1.405 (9)	C26—C31	1.389 (9)
N4—C14	1.446 (9)	C26—C27	1.410 (9)
C1—O1A	1.35 (4)	C27—C28	1.368 (10)
C1—O1	1.377 (14)	C27—H27	0.9400
C2—C3	1.391 (10)	C28—C29	1.346 (12)
C2—C7	1.392 (10)	C28—H28	0.9400
C3—C4	1.382 (9)	C29—C30	1.387 (11)
C3—H3	0.9400	C29—H29	0.9400
C4—C5	1.384 (9)	C30—C31	1.395 (9)
C4—H4	0.9400	C30—H30	0.9400
C5—C6	1.391 (9)	C31—H31	0.9400
C6—C7	1.371 (9)	C32—C37	1.371 (9)
C6—H6	0.9400	C32—C33	1.381 (9)
C7—H7	0.9400	C33—C34	1.396 (9)
O1—C8	1.465 (9)	C33—H33	0.9400
C8—C9	1.473 (10)	C34—C35	1.368 (10)
C8—H8A	0.9800	C34—H34	0.9400
C8—H8B	0.9800	C35—C36	1.347 (11)
C9—H9A	0.9700	C35—H35	0.9400
C9—H9B	0.9700	C36—C37	1.394 (10)
C9—H9C	0.9700	C36—H36	0.9400
O1A—C8A	1.455 (10)	C37—H37	0.9400
C8A—C9A	1.478 (10)	C38—C39	1.383 (9)
C8A—H8C	0.9800	C38—C43	1.394 (9)
C8A—H8D	0.9800	C39—C40	1.390 (10)
C9A—H9D	0.9700	C39—H39	0.9400
C9A—H9E	0.9700	C40—C41	1.362 (11)
C9A—H9F	0.9700	C40—H40	0.9400
C11—C12	1.395 (10)	C41—C42	1.393 (11)
C11—C16	1.416 (11)	C41—H41	0.9400
C12—C13	1.376 (10)	C42—C43	1.396 (10)
C12—H12	0.9400	C42—H42	0.9400
C13—C14	1.365 (11)	C43—H43	0.9400
C13—H13	0.9400

P1—Au1—S1	172.77 (6)	C15—C16—H16	120.1
P1—Au1—Au2	88.36 (4)	C11—C16—H16	120.1
S1—Au1—Au2	98.86 (4)	O4—C17—C18	107.7 (7)
P2—Au2—S2	173.84 (6)	O4—C17—H17A	110.2
P2—Au2—Au1	80.42 (4)	C18—C17—H17A	110.2
S2—Au2—Au1	104.74 (4)	O4—C17—H17B	110.2
C1—S1—Au1	102.4 (2)	C18—C17—H17B	110.2
C10—S2—Au2	100.7 (2)	H17A—C17—H17B	108.5
C20—P1—C26	106.9 (3)	C17—C18—H18A	109.5
C20—P1—C19	105.3 (3)	C17—C18—H18B	109.5
C26—P1—C19	104.7 (3)	H18A—C18—H18B	109.5
C20—P1—Au1	111.07 (19)	C17—C18—H18C	109.5
C26—P1—Au1	112.6 (2)	H18A—C18—H18C	109.5
C19—P1—Au1	115.60 (19)	H18B—C18—H18C	109.5
C38—P2—C32	107.0 (3)	P2—C19—P1	110.1 (3)
C38—P2—C19	106.5 (3)	P2—C19—H19A	109.6
C32—P2—C19	105.1 (3)	P1—C19—H19A	109.6
C38—P2—Au2	115.44 (19)	P2—C19—H19B	109.6
C32—P2—Au2	111.7 (2)	P1—C19—H19B	109.6
C19—P2—Au2	110.46 (19)	H19A—C19—H19B	108.2
C10—O4—C17	116.5 (5)	C21—C20—C25	118.9 (6)
C1—N1—C2	122.7 (6)	C21—C20—P1	119.3 (5)
O3—N2—O2	122.6 (6)	C25—C20—P1	121.8 (4)
O3—N2—C5	118.8 (6)	C22—C21—C20	120.6 (6)
O2—N2—C5	118.6 (6)	C22—C21—H21	119.7
C10—N3—C11	121.0 (6)	C20—C21—H21	119.7
O6—N4—O5	122.9 (8)	C21—C22—C23	120.5 (6)
O6—N4—C14	120.2 (10)	C21—C22—H22	119.7
O5—N4—C14	116.9 (9)	C23—C22—H22	119.7
N1—C1—O1A	117.8 (14)	C22—C23—C24	120.3 (6)
N1—C1—O1	120.2 (8)	C22—C23—H23	119.9
O1A—C1—O1	24.6 (12)	C24—C23—H23	119.9
N1—C1—S1	125.9 (5)	C23—C24—C25	119.2 (6)
O1A—C1—S1	114.1 (14)	C23—C24—H24	120.4
O1—C1—S1	113.3 (7)	C25—C24—H24	120.4
C3—C2—C7	118.3 (6)	C24—C25—C20	120.5 (6)
C3—C2—N1	122.0 (7)	C24—C25—H25	119.8
C7—C2—N1	119.4 (7)	C20—C25—H25	119.8
C4—C3—C2	121.6 (6)	C31—C26—C27	120.2 (6)
C4—C3—H3	119.2	C31—C26—P1	120.8 (5)
C2—C3—H3	119.2	C27—C26—P1	119.0 (5)
C3—C4—C5	117.8 (6)	C28—C27—C26	119.2 (7)
C3—C4—H4	121.1	C28—C27—H27	120.4
C5—C4—H4	121.1	C26—C27—H27	120.4
C4—C5—C6	122.5 (6)	C29—C28—C27	121.4 (8)
C4—C5—N2	118.9 (6)	C29—C28—H28	119.3
C6—C5—N2	118.6 (6)	C27—C28—H28	119.3
C7—C6—C5	117.9 (6)	C28—C29—C30	120.4 (7)
C7—C6—H6	121.1	C28—C29—H29	119.8
C5—C6—H6	121.1	C30—C29—H29	119.8
C6—C7—C2	121.9 (6)	C29—C30—C31	120.4 (7)
C6—C7—H7	119.1	C29—C30—H30	119.8
C2—C7—H7	119.1	C31—C30—H30	119.8
C1—O1—C8	115.3 (12)	C26—C31—C30	118.3 (7)
O1—C8—C9	110.1 (17)	C26—C31—H31	120.8
O1—C8—H8A	109.6	C30—C31—H31	120.8
C9—C8—H8A	109.6	C37—C32—C33	119.6 (6)
O1—C8—H8B	109.6	C37—C32—P2	118.7 (5)
C9—C8—H8B	109.6	C33—C32—P2	121.5 (5)
H8A—C8—H8B	108.1	C32—C33—C34	119.0 (6)
C1—O1A—C8A	123 (3)	C32—C33—H33	120.5
O1A—C8A—C9A	110 (4)	C34—C33—H33	120.5
O1A—C8A—H8C	109.7	C35—C34—C33	120.7 (7)
C9A—C8A—H8C	109.7	C35—C34—H34	119.7
O1A—C8A—H8D	109.7	C33—C34—H34	119.7
C9A—C8A—H8D	109.7	C36—C35—C34	120.1 (7)
H8C—C8A—H8D	108.2	C36—C35—H35	119.9
C8A—C9A—H9D	109.5	C34—C35—H35	119.9
C8A—C9A—H9E	109.5	C35—C36—C37	120.3 (7)
H9D—C9A—H9E	109.5	C35—C36—H36	119.8
C8A—C9A—H9F	109.5	C37—C36—H36	119.8
H9D—C9A—H9F	109.5	C32—C37—C36	120.2 (7)
H9E—C9A—H9F	109.5	C32—C37—H37	119.9
N3—C10—O4	121.2 (6)	C36—C37—H37	119.9
N3—C10—S2	125.3 (5)	C39—C38—C43	119.4 (6)
O4—C10—S2	113.5 (5)	C39—C38—P2	120.8 (5)
C12—C11—N3	120.0 (7)	C43—C38—P2	119.8 (5)
C12—C11—C16	119.5 (7)	C38—C39—C40	120.9 (7)
N3—C11—C16	120.2 (7)	C38—C39—H39	119.6
C13—C12—C11	120.1 (7)	C40—C39—H39	119.6
C13—C12—H12	120.0	C41—C40—C39	119.9 (7)
C11—C12—H12	120.0	C41—C40—H40	120.0
C14—C13—C12	119.2 (7)	C39—C40—H40	120.0
C14—C13—H13	120.4	C40—C41—C42	120.4 (7)
C12—C13—H13	120.4	C40—C41—H41	119.8
C13—C14—C15	123.0 (7)	C42—C41—H41	119.8
C13—C14—N4	119.9 (8)	C41—C42—C43	120.0 (7)
C15—C14—N4	117.2 (8)	C41—C42—H42	120.0
C14—C15—C16	118.5 (8)	C43—C42—H42	120.0
C14—C15—H15	120.8	C38—C43—C42	119.4 (7)
C16—C15—H15	120.8	C38—C43—H43	120.3
C15—C16—C11	119.8 (8)	C42—C43—H43	120.3

P1—Au1—Au2—P2	28.86 (6)	N4—C14—C15—C16	−176.7 (7)
S1—Au1—Au2—P2	−151.57 (7)	C14—C15—C16—C11	−2.6 (12)
P1—Au1—Au2—S2	−147.71 (6)	C12—C11—C16—C15	1.6 (11)
S1—Au1—Au2—S2	31.86 (7)	N3—C11—C16—C15	175.0 (7)
P1—Au1—S1—C1	−22.7 (6)	C10—O4—C17—C18	176.7 (8)
Au2—Au1—S1—C1	160.7 (3)	C38—P2—C19—P1	−58.8 (4)
P2—Au2—S2—C10	22.0 (7)	C32—P2—C19—P1	−172.1 (3)
Au1—Au2—S2—C10	168.6 (2)	Au2—P2—C19—P1	67.2 (3)
S1—Au1—P1—C20	−59.6 (6)	C20—P1—C19—P2	−155.5 (3)
Au2—Au1—P1—C20	117.0 (2)	C26—P1—C19—P2	92.0 (3)
S1—Au1—P1—C26	60.2 (6)	Au1—P1—C19—P2	−32.5 (4)
Au2—Au1—P1—C26	−123.2 (2)	C26—P1—C20—C21	−106.5 (5)
S1—Au1—P1—C19	−180 (100)	C19—P1—C20—C21	142.6 (5)
Au2—Au1—P1—C19	−2.9 (2)	Au1—P1—C20—C21	16.7 (5)
S2—Au2—P2—C38	−145.2 (6)	C26—P1—C20—C25	72.4 (5)
Au1—Au2—P2—C38	67.5 (2)	C19—P1—C20—C25	−38.6 (6)
S2—Au2—P2—C32	−22.6 (6)	Au1—P1—C20—C25	−164.4 (4)
Au1—Au2—P2—C32	−170.0 (2)	C25—C20—C21—C22	0.0 (9)
S2—Au2—P2—C19	94.0 (6)	P1—C20—C21—C22	178.8 (5)
Au1—Au2—P2—C19	−53.4 (2)	C20—C21—C22—C23	0.5 (10)
C2—N1—C1—O1A	−158.0 (15)	C21—C22—C23—C24	−0.9 (11)
C2—N1—C1—O1	173.9 (10)	C22—C23—C24—C25	0.8 (11)
C2—N1—C1—S1	4.2 (13)	C23—C24—C25—C20	−0.3 (10)
Au1—S1—C1—N1	171.7 (8)	C21—C20—C25—C24	−0.1 (10)
Au1—S1—C1—O1A	−25.6 (14)	P1—C20—C25—C24	−178.9 (5)
Au1—S1—C1—O1	1.4 (9)	C20—P1—C26—C31	−66.9 (6)
C1—N1—C2—C3	63.0 (12)	C19—P1—C26—C31	44.5 (6)
C1—N1—C2—C7	−123.0 (9)	Au1—P1—C26—C31	170.8 (4)
C7—C2—C3—C4	−0.2 (11)	C20—P1—C26—C27	114.3 (5)
N1—C2—C3—C4	173.8 (7)	C19—P1—C26—C27	−134.4 (5)
C2—C3—C4—C5	0.3 (11)	Au1—P1—C26—C27	−8.0 (6)
C3—C4—C5—C6	−0.6 (10)	C31—C26—C27—C28	−0.5 (10)
C3—C4—C5—N2	−179.1 (6)	P1—C26—C27—C28	178.3 (6)
O3—N2—C5—C4	−169.8 (6)	C26—C27—C28—C29	−0.6 (12)
O2—N2—C5—C4	9.5 (10)	C27—C28—C29—C30	0.8 (12)
O3—N2—C5—C6	11.7 (10)	C28—C29—C30—C31	0.1 (11)
O2—N2—C5—C6	−169.1 (6)	C27—C26—C31—C30	1.4 (9)
C4—C5—C6—C7	0.9 (10)	P1—C26—C31—C30	−177.4 (5)
N2—C5—C6—C7	179.4 (6)	C29—C30—C31—C26	−1.3 (10)
C5—C6—C7—C2	−0.8 (10)	C38—P2—C32—C37	50.4 (6)
C3—C2—C7—C6	0.5 (10)	C19—P2—C32—C37	163.3 (6)
N1—C2—C7—C6	−173.7 (7)	Au2—P2—C32—C37	−76.9 (6)
N1—C1—O1—C8	11.6 (19)	C38—P2—C32—C33	−133.3 (5)
O1A—C1—O1—C8	−80 (4)	C19—P2—C32—C33	−20.4 (6)
S1—C1—O1—C8	−177.5 (11)	Au2—P2—C32—C33	99.4 (5)
C1—O1—C8—C9	76.0 (19)	C37—C32—C33—C34	0.9 (10)
N1—C1—O1A—C8A	−10 (4)	P2—C32—C33—C34	−175.3 (5)
O1—C1—O1A—C8A	93 (5)	C32—C33—C34—C35	0.0 (11)
S1—C1—O1A—C8A	−174 (2)	C33—C34—C35—C36	−0.9 (12)
C1—O1A—C8A—C9A	−74 (4)	C34—C35—C36—C37	0.9 (13)
C11—N3—C10—O4	−177.3 (7)	C33—C32—C37—C36	−1.0 (11)
C11—N3—C10—S2	2.8 (12)	P2—C32—C37—C36	175.4 (6)
C17—O4—C10—N3	−0.6 (11)	C35—C36—C37—C32	0.1 (13)
C17—O4—C10—S2	179.3 (6)	C32—P2—C38—C39	−134.5 (5)
Au2—S2—C10—N3	161.0 (7)	C19—P2—C38—C39	113.6 (5)
Au2—S2—C10—O4	−18.9 (6)	Au2—P2—C38—C39	−9.4 (6)
C10—N3—C11—C12	−104.3 (9)	C32—P2—C38—C43	49.2 (6)
C10—N3—C11—C16	82.4 (10)	C19—P2—C38—C43	−62.8 (5)
N3—C11—C12—C13	−174.0 (6)	Au2—P2—C38—C43	174.2 (4)
C16—C11—C12—C13	−0.6 (11)	C43—C38—C39—C40	0.4 (10)
C11—C12—C13—C14	0.7 (11)	P2—C38—C39—C40	−176.0 (5)
C12—C13—C14—C15	−1.8 (12)	C38—C39—C40—C41	0.8 (11)
C12—C13—C14—N4	177.7 (7)	C39—C40—C41—C42	−1.6 (12)
O6—N4—C14—C13	169.9 (8)	C40—C41—C42—C43	1.1 (12)
O5—N4—C14—C13	−11.0 (11)	C39—C38—C43—C42	−0.9 (10)
O6—N4—C14—C15	−10.6 (11)	P2—C38—C43—C42	175.5 (5)
O5—N4—C14—C15	168.5 (8)	C41—C42—C43—C38	0.1 (11)
C13—C14—C15—C16	2.7 (12)

Hydrogen-bond geometry (Å, º) top

Cg1 and Cg2 are the centroids of the C2–C7 and C38–C43 rings, respectively.

D—H···A	D—H	H···A	D···A	D—H···A
C41—H41···Cg1ⁱ	0.94	2.73	3.576 (8)	151
C17—H17b···Cg2ⁱⁱ	0.98	2.87	3.821 (11)	163

Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+3/2, −y+3/2, −z+1/2.

Experimental details

Crystal data
Chemical formula	[Au₂(C₉H₉N₂O₃S)₂(C₂₅H₂₂P₂)]
M_r	1228.83
Crystal system, space group	Monoclinic, I2/a
Temperature (K)	223
a, b, c (Å)	24.400 (3), 16.1419 (16), 24.594 (2)
β (°)	110.252 (9)
V (Å³)	9087.9 (16)
Z	8
Radiation type	Mo Kα
µ (mm⁻¹)	6.66
Crystal size (mm)	0.31 × 0.13 × 0.05

Data collection
Diffractometer	Bruker SMART CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2000)
T_min, T_max	0.445, 1
No. of measured, independent and observed [I > 2σ(I)] reflections	31967, 10427, 7923
R_int	0.053
(sin θ/λ)_max (Å⁻¹)	0.650

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.039, 0.110, 1.02
No. of reflections	10427
No. of parameters	549
No. of restraints	28
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.52, −1.19

Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), PATTY in DIRDIF92 (Beurskens et al., 1992), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).

Selected bond lengths (Å) top

Au1—P1	2.2582 (15)	Au2—P2	2.2421 (15)
Au1—S1	2.3087 (16)	Au2—S2	2.3012 (16)

Hydrogen-bond geometry (Å, º) top

Cg1 and Cg2 are the centroids of the C2–C7 and C38–C43 rings, respectively.

D—H···A	D—H	H···A	D···A	D—H···A
C41—H41···Cg1ⁱ	0.94	2.73	3.576 (8)	151
C17—H17b···Cg2ⁱⁱ	0.98	2.87	3.821 (11)	163

Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+3/2, −y+3/2, −z+1/2.

Acknowledgements

The National University of Singapore (grant No. R-143–000-213–112) is thanked for support.

References

Beurskens, P. T., Admiraal, G., Beurskens, G., Bosman, W. P., Garcia-Granda, S., Gould, R. O., Smits, J. M. M. & Smykalla, C. (1992). The DIRDIF Program System. Technical Report of the Crystallography Laboratory, University of Nijmegen, The Netherlands. Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2000). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Hall, V. J., Siasios, G. & Tiekink, E. R. T. (1993). Aust. J. Chem. 46, 561–570. CSD CrossRef CAS Google Scholar
Ho, S. Y., Cheng, E. C.-C., Tiekink, E. R. T. & Yam, V. W.-W. (2006). Inorg. Chem. 45, 8165–8174. Web of Science CSD CrossRef PubMed CAS Google Scholar
Ho, S. Y. & Tiekink, E. R. T. (2007). CrystEngComm, 9, 368–378. Web of Science CSD CrossRef CAS Google Scholar
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43. Submitted. Google Scholar

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Volume 66| Part 6| June 2010| Pages m622-m623

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