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In the title compound, catena-poly[[tri­silver(I)-tri-[mu]3-N,N-diethyl­dithio­carbamato-3'[kappa]S:1[kappa]S':2[kappa]S;1[kappa]S:2[kappa]S':3[kappa]S;2[kappa]S:3[kappa]2S,S':1'[kappa]S'], [Ag3(C5H10NS2)3]n, the trigonally and tetra­hedrally coordinated Ag atoms are [mu]3-bridged by [kappa]3- and [kappa]4-S2CNEt2 ligands to form a ribbon structure along the c axis. There is a twofold axis parallel to the b axis and passing through the tetra­hedrally coordinated Ag atom. The S2CNEt2 ligands coordinate the Ag atoms in [eta]1,[eta]2- and [eta]2,[eta]2-fashions, depending on the bridging S atoms. The distances between the trigonal Ag and S atoms are 2.4915 (11)-2.6205 (11) Å, while those between the tetra­hedral Ag and S atoms are 2.5457 (11) and 2.7145 (10) Å. The shortest Ag...Ag distance between trigonal Ag atoms is 2.8336 (7) Å, which indicates a weak Ag...Ag inter­action, whereas the shortest distance between trigonal and tetra­hedral Ag atoms is 3.463 (6) Å, which is considered as non-bonding.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270106006688/ob3001sup1.cif
Contains datablocks global, III

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270106006688/ob3001IIIsup2.hkl
Contains datablock bn25

CCDC reference: 609406

Comment top

Dithiocarbamates (R2NCS2) are a versatile class of monoanionic 1,1'-dithio ligand and, as they are easily prepared, a wide range of chemistry has been developed around them (Coucouvanis, 1979). The chemistry of transition metal–dithiocarbamate complexes is still of much current interest becasue of their applications in inorganic analysis, such as separation of different metal ions by high-performance liquid chromatography (Liśka et al., 1979) and capillary gas chromatography (Riekkola, 1982), and as rubber vulcanization accelerators, fungicides and pesticides (Hogarth, 2005). A large number of transition metal–dithiocarbamate complexes have been synthesized to date and have been reported to exhibit very abundant reactivities and a variety structures (Hogarth, 2005).

Simple silver(I)–dithiocarbamate complexes, [Ag(S2CNR2)]n, have been known since the 1950 s (Akerström, 1959), yet in the intervening years little further work had been carried out. The low solubility of these complexes probably hindered research in this field. Early crystallographic studies revealed the hexameric nature of Ag—S2CNR2 (R = Et and Pr) complexes in the solid state (Hesse, 1963), although in solution they are believed to be in equilibrium with monomeric species. Recently, the silver–N,N-diethyldithiocarbamate complex has been the subject of two further crystallographic studies. The known monoclinic α-modification, (I), characterized by X-ray powder diffraction data, is hexameric and consists of a distorted octahedron of Ag atoms (Hesse & Nilson, 1969). The dithiocarbamate anions cap six of the faces in a η1,η2-fashion; the remaining two faces with long silver–silver interactions remain uncapped. The β-modification, (II), characterized by single-crystal X-ray diffraction, exhibits a polymeric chain structure in which each Ag atom is coordinated in a distorted fashion by three dithiocarbamate ligands (Anacker-Eickhoff et al., 1982), one acting as a chelate and the others as µ2-bridges. Although the reaction of the hexameric α-modification, [Ag(S2CNEt2)]6, with (SCN)2 resulted in the formation of the postulated products [Ag6(S2CNEt2)5(SCN)] and [Ag6(S2CNEt2)6(SCN)4] (Calabro et al., 1981), poor solubility in common organic solvents made the characterization of the complexes possible only on the basis of spectroscopic data; accordingly, no X-ray crystallographic study was reported. Huang et al. (1992) prepared a polynuclear silver(I)–diethyldithiocarbamate cluster, [Ag11S(S2CNEt2)9], with a centered µ5-S atom. One of the authors also isolated and crystallographically characterized an Se analog, [Ag115-Se)(µ3-S2CNEt2)64-S2CNEt2)3], which contains six triply and three quadruply bridging dithiocarbamate ligands (Zhang et al., 1998). We have maintained an interest in silver(I)–dithiocarbamate complexes and we report here the structure of the title compound, (III), which is the γ-modification of [Ag(S2CNEt2)]n.

Compound (III) has a polymeric structure (Fig. 1). There is a twofold axis through atoms Ag2, C2 and N2. The trigonally and tetrahedrally coordinated Ag atoms are bridged by µ3– and µ4-S2CNEt2 ligands to form a ribbon structure along the c axis (Fig. 2). Similar to (I) (Hesse & Nilson, 1969) and (II) (Anacker-Eickhoff et al., 1982), the formula of (III) is also defined as [Ag(S2CNEt2)]n on the basis of X-ray analysis, together with microanalyses and spectroscopy. We conclude that it is reasonable to name complex (III), which has a new structural mode, as the γ-modification of [Ag(S2CNEt2)]n. The S2CNEt2 ligands coordinate the Agr atoms in η1,η2– and η2,η2-fashions, depending on the bridging S atoms.

The distances between the trigonal Ag (Ag1) and S atoms are 2.4915 (11)–2.6205 (11) Å (Table 1), and the S—Ag1—S bond angles are 109.49 (4)–128.56 (3)°, indicating a highly distorted coordination geometry around atom Ag1. The tetrahedral Ag atom (Ag2) is bound by two µ3-S atoms from two η1,η2-S2CNEt2 ligands and chelated by two µ3-S atoms from one η2,η2-S2CNEt2 ligand. The coordination geometry of atom Ag2 is severely distorted, as observed in other silver–dithiocarbamate complexes with tetrahedral Ag atoms, such as [Ag(S2CNC4H9)(PPh3)2] (Othman et al., 1996) and [Ag(S2CNEt2)(PFc2Ph)] (Fc is ferrocenyl; Gimeno et al., 1998). The distortion arises from the restricted bite angle of S2—Ag2—S2C [67.15 (4)°; symmetry codes AC are as in Fig. 1]. There is also a large deviation of the S1A—Ag2—S1B angle [125.84 (4)°] from the ideal tetrahedral value. Each tetrahedral Ag atom has a pair of long and short Ag—S bonds [Ag2—S2 = 2.7145 (10) Å and Ag2—S1A = 2.5457 (11) Å]; interatomic Ag···S distances longer than 2.80 Å are considered to be non-bonding. The Ag···Ag distance between two adjacent trigonal Ag atoms [2.8336 (7) Å] is shorter than twice the van der Waals radius (1.7 Å) of Ag atoms, indicating a weak Ag···Ag interaction, which is obviously compatible with the Ag···Ag distance in metallic silver [2.889 (6) Å]. The reported Ag···Ag distances where bonding is considered to occur are in the range 2.729–3.065 Å (Kanatzidis & Huang, 1989; Huang et al., 1992; Yam et al., 1996; Zhang et al., 1998). The separation of adjacent trigonal and tetrahedral Ag atoms is 3.463 (6) Å, indicating that these atoms are non-bonded. The C—S bond lengths [1.714 (4)–1.751 (3) Å] are comparable to those in related silver–dithiocarbamate complexes. The C1—N1 and C2—N2 bond lengths are 1.325 (4) and 1.322 (6) Å, respectively, suggesting considerable partial double-bond character because the N-atom lone pair is involved in delocalized π-bonding over the NCS2 group (Eisenberg, 1970).

Experimental top

Compound (III) was prepared by mixing stoichiometeric quantities of NaS2CNEt2·3H2O (225 mg, 0.10 mmol) and Ag(CF3SO3) (257 mg, 0.10 mmol) in absolute ethanol. The mixture was stirred for 15 min at room temperature. The resulting brown precipitate was filtered and further recrystallized from DMF/THF (1:5 v/v). Dark-red crystals of (III) were obtained after a couple of weeks (yield 116 mg, 45%). 1H NMR (DMSO-d6): δ 1.23 (m, CH3), 3.54 (m, CH2). MS (FAB): m/z 256 (M+ + 1). IR (KBr pepplt, cm−1): ν(CN), 1479 (s); ν(C—S) 990 (s), 917(m). Analysis calculated for C9H30Ag3N3S6: C 23.35, H 3.94, N 5.47%; found: C 23.25, H 3.91, N 5.43%.

Refinement top

All H atoms were found in difference density maps, but were then placed in calculated positions (C—H = 0.96–0.97%A) and included in the refinement using a riding-model approximation, with Uiso(H) = 1.2Ueq(C). The largest peak in the final difference maps is in the vicinity of the Ag atom.

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL.

Figures top
[Figure 1] Fig. 1. A view of the structure of (III), indicating atom displacement ellipsoids at the 50% probability level. H atoms have been omitted for clarity. [Symmetry codes: (A) 1 − x, 1 − y, 1 − z; (B) x, 1 − y, z + 1/2; (C) 1 − x, y, 3/2 − z.]
[Figure 2] Fig. 2. The crystal structure of (III), projected along the b axis. H atoms have been omitted for clarity.
catena-poly[[trisilver(I)-di-µ3-N,N-diethyldithiocarbamato- 3'κS:1κS':2κS;1κS:2κS':3κS- µ4-N,N-diethyldithiocarbamato- 2κS:3κ2S,S':1'κS'] top
Crystal data top
[Ag3(C5H10NS2)3]F(000) = 1512
Mr = 768.45Dx = 2.136 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
a = 18.138 (4) ÅCell parameters from 2887 reflections
b = 9.5890 (19) Åθ = 2.3–18.3°
c = 14.245 (3) ŵ = 2.97 mm1
β = 105.30 (3)°T = 153 K
V = 2389.8 (8) Å3Prism, dark red
Z = 40.25 × 0.22 × 0.18 mm
Data collection top
Bruker SMART CCD area-detector
diffractometer
2853 independent reflections
Radiation source: fine-focus sealed tube2506 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.031
ϕ and ω scansθmax = 28.3°, θmin = 2.3°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 2423
Tmin = 0.457, Tmax = 0.586k = 1212
7241 measured reflectionsl = 1118
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.034Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.079H-atom parameters constrained
S = 1.09 w = 1/[σ2(Fo2) + (0.0369P)2 + 2.307P]
where P = (Fo2 + 2Fc2)/3
2853 reflections(Δ/σ)max = 0.001
124 parametersΔρmax = 1.59 e Å3
0 restraintsΔρmin = 0.97 e Å3
Crystal data top
[Ag3(C5H10NS2)3]V = 2389.8 (8) Å3
Mr = 768.45Z = 4
Monoclinic, C2/cMo Kα radiation
a = 18.138 (4) ŵ = 2.97 mm1
b = 9.5890 (19) ÅT = 153 K
c = 14.245 (3) Å0.25 × 0.22 × 0.18 mm
β = 105.30 (3)°
Data collection top
Bruker SMART CCD area-detector
diffractometer
2853 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
2506 reflections with I > 2σ(I)
Tmin = 0.457, Tmax = 0.586Rint = 0.031
7241 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0340 restraints
wR(F2) = 0.079H-atom parameters constrained
S = 1.09Δρmax = 1.59 e Å3
2853 reflectionsΔρmin = 0.97 e Å3
124 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. The data collection covered over a hemisphere of reciprocal space by a combination of three sets of exposures; each set had a different ϕ angle (0, 88 and 180°) for the crystal and each exposure of 20 s covered 0.3° in ω. The crystal-to-detector distance was 4 cm and the detector swing angle was −35°. Coverage of the unique set is over 99% complete. Crystal decay was monitored by repeating fifty initial frames at the end of data collection and analysing the duplicate reflections, and was found to be negligible.

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
xyzUiso*/Ueq
Ag10.519534 (16)0.37249 (3)0.55071 (2)0.02157 (10)
Ag20.50000.56129 (4)0.75000.01967 (11)
S10.57677 (5)0.31786 (9)0.40397 (6)0.01522 (18)
S20.57616 (5)0.32543 (9)0.72706 (6)0.01755 (18)
S30.37699 (5)0.41359 (9)0.48830 (6)0.01747 (19)
N10.70878 (16)0.4503 (3)0.4185 (2)0.0137 (6)
N20.50000.0960 (4)0.75000.0150 (8)
C10.64259 (19)0.4536 (3)0.4414 (2)0.0149 (7)
C20.50000.2339 (5)0.75000.0157 (9)
C110.76313 (19)0.5670 (4)0.4412 (2)0.0169 (7)
H11A0.73510.65360.43960.020*
H11B0.79110.57240.39200.020*
C120.81906 (19)0.5506 (4)0.5403 (3)0.0207 (8)
H12A0.85420.62740.55200.031*
H12B0.84680.46490.54220.031*
H12C0.79170.54900.58950.031*
C130.7341 (2)0.3304 (4)0.3700 (3)0.0192 (7)
H13A0.71020.24620.38560.023*
H13B0.78900.31980.39480.023*
C140.7144 (2)0.3475 (5)0.2611 (3)0.0289 (9)
H14A0.73200.26750.23260.043*
H14B0.73870.42980.24520.043*
H14C0.66010.35600.23600.043*
C210.56207 (19)0.0118 (4)0.7296 (2)0.0169 (7)
H21A0.56710.07480.76590.020*
H21B0.61000.06220.75070.020*
C220.5461 (2)0.0203 (4)0.6220 (3)0.0213 (8)
H22A0.58820.07130.61010.032*
H22B0.53940.06530.58580.032*
H22C0.50040.07520.60190.032*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Ag10.02415 (17)0.02126 (16)0.02314 (17)0.00380 (11)0.01298 (12)0.00766 (11)
Ag20.0214 (2)0.01563 (19)0.0194 (2)0.0000.00092 (14)0.000
S10.0172 (4)0.0133 (4)0.0156 (4)0.0013 (3)0.0050 (3)0.0007 (3)
S20.0187 (4)0.0163 (4)0.0196 (4)0.0015 (3)0.0085 (3)0.0004 (3)
S30.0189 (4)0.0175 (4)0.0177 (4)0.0013 (3)0.0077 (3)0.0057 (3)
N10.0170 (14)0.0124 (14)0.0132 (14)0.0005 (11)0.0066 (11)0.0003 (11)
N20.018 (2)0.019 (2)0.0096 (19)0.0000.0063 (15)0.000
C10.0158 (16)0.0144 (16)0.0131 (15)0.0008 (13)0.0016 (12)0.0023 (13)
C20.017 (2)0.018 (2)0.012 (2)0.0000.0025 (17)0.000
C110.0177 (17)0.0162 (17)0.0182 (17)0.0040 (13)0.0070 (13)0.0029 (14)
C120.0177 (18)0.0196 (18)0.0250 (19)0.0028 (14)0.0058 (14)0.0006 (15)
C130.0200 (18)0.0192 (18)0.0205 (18)0.0045 (14)0.0092 (14)0.0017 (15)
C140.033 (2)0.038 (2)0.0184 (19)0.0036 (17)0.0111 (16)0.0082 (17)
C210.0185 (17)0.0153 (16)0.0190 (18)0.0013 (13)0.0084 (13)0.0009 (14)
C220.0245 (18)0.0232 (19)0.0197 (18)0.0036 (15)0.0118 (14)0.0058 (15)
Geometric parameters (Å, º) top
Ag1—S22.4915 (11)C1—S3i1.714 (4)
Ag1—S32.5333 (11)C2—S2iii1.739 (3)
Ag1—S12.6205 (11)C11—C121.513 (5)
Ag1—Ag1i2.8336 (7)C11—H11A0.9700
Ag1—S3i2.9308 (10)C11—H11B0.9700
Ag2—S1ii2.5457 (11)C12—H12A0.9600
Ag2—S1i2.5457 (11)C12—H12B0.9600
Ag2—S2iii2.7145 (10)C12—H12C0.9600
Ag2—S22.7145 (10)C13—C141.507 (5)
S1—C11.751 (3)C13—H13A0.9700
S1—Ag2i2.5457 (11)C13—H13B0.9700
S2—C21.739 (3)C14—H14A0.9600
S3—C1i1.714 (4)C14—H14B0.9600
S3—Ag1i2.9308 (10)C14—H14C0.9600
N1—C11.325 (4)C21—C221.514 (5)
N1—C111.470 (4)C21—H21A0.9700
N1—C131.476 (4)C21—H21B0.9700
N2—C21.322 (6)C22—H22A0.9600
N2—C21iii1.476 (4)C22—H22B0.9600
N2—C211.476 (4)C22—H22C0.9600
S2—Ag1—S3119.54 (4)N1—C11—C12111.8 (3)
S2—Ag1—S1128.56 (3)N1—C11—H11A109.3
S3—Ag1—S1109.49 (4)C12—C11—H11A109.3
S2—Ag1—Ag1i130.65 (3)N1—C11—H11B109.3
S3—Ag1—Ag1i65.92 (3)C12—C11—H11B109.3
S1—Ag1—Ag1i82.20 (2)H11A—C11—H11B107.9
S2—Ag1—S3i101.75 (3)C11—C12—H12A109.5
S3—Ag1—S3i118.03 (2)C11—C12—H12B109.5
S1—Ag1—S3i65.19 (3)H12A—C12—H12B109.5
Ag1i—Ag1—S3i52.11 (2)C11—C12—H12C109.5
S1ii—Ag2—S1i125.84 (4)H12A—C12—H12C109.5
S1ii—Ag2—S2iii117.10 (3)H12B—C12—H12C109.5
S1i—Ag2—S2iii107.63 (3)N1—C13—C14112.3 (3)
S1ii—Ag2—S2107.63 (3)N1—C13—H13A109.1
S1i—Ag2—S2117.10 (3)C14—C13—H13A109.1
S2iii—Ag2—S267.15 (4)N1—C13—H13B109.1
C1—S1—Ag2i95.63 (11)C14—C13—H13B109.1
C1—S1—Ag189.44 (12)H13A—C13—H13B107.9
Ag2i—S1—Ag1110.76 (3)C13—C14—H14A109.5
C2—S2—Ag198.30 (5)C13—C14—H14B109.5
C2—S2—Ag286.75 (15)H14A—C14—H14B109.5
Ag1—S2—Ag283.28 (3)C13—C14—H14C109.5
C1i—S3—Ag1105.08 (12)H14A—C14—H14C109.5
C1i—S3—Ag1i80.35 (12)H14B—C14—H14C109.5
Ag1—S3—Ag1i61.97 (2)N2—C21—C22111.0 (3)
C1—N1—C11121.8 (3)N2—C21—H21A109.4
C1—N1—C13123.2 (3)C22—C21—H21A109.4
C11—N1—C13115.0 (3)N2—C21—H21B109.4
C2—N2—C21iii123.19 (19)C22—C21—H21B109.4
C2—N2—C21123.2 (2)H21A—C21—H21B108.0
C21iii—N2—C21113.6 (4)C21—C22—H22A109.5
N1—C1—S3i120.1 (3)C21—C22—H22B109.5
N1—C1—S1119.8 (3)H22A—C22—H22B109.5
S3i—C1—S1120.0 (2)C21—C22—H22C109.5
N2—C2—S2120.32 (14)H22A—C22—H22C109.5
N2—C2—S2iii120.32 (14)H22B—C22—H22C109.5
S2—C2—S2iii119.4 (3)
S2—Ag1—S1—C172.66 (11)S2—Ag1—S3—Ag1i124.54 (3)
S3—Ag1—S1—C1125.33 (11)S1—Ag1—S3—Ag1i71.58 (3)
Ag1i—Ag1—S1—C164.37 (11)S3i—Ag1—S3—Ag1i0.0
S3i—Ag1—S1—C112.66 (11)C11—N1—C1—S3i7.8 (4)
S2—Ag1—S1—Ag2i168.48 (3)C13—N1—C1—S3i171.4 (2)
S3—Ag1—S1—Ag2i29.52 (4)C11—N1—C1—S1174.9 (2)
Ag1i—Ag1—S1—Ag2i31.45 (3)C13—N1—C1—S15.9 (4)
S3i—Ag1—S1—Ag2i83.16 (4)Ag2i—S1—C1—N195.0 (3)
S3—Ag1—S2—C233.91 (15)Ag1—S1—C1—N1154.2 (3)
S1—Ag1—S2—C2126.53 (15)Ag2i—S1—C1—S3i87.69 (19)
Ag1i—Ag1—S2—C2116.36 (15)Ag1—S1—C1—S3i23.12 (19)
S3i—Ag1—S2—C2165.95 (14)C21iii—N2—C2—S2178.98 (16)
S3—Ag1—S2—Ag251.79 (4)C21—N2—C2—S21.02 (16)
S1—Ag1—S2—Ag2147.77 (3)C21iii—N2—C2—S2iii1.02 (16)
Ag1i—Ag1—S2—Ag230.65 (4)C21—N2—C2—S2iii178.98 (16)
S3i—Ag1—S2—Ag280.24 (3)Ag1—S2—C2—N297.28 (4)
S1ii—Ag2—S2—C2112.63 (4)Ag2—S2—C2—N2180.0
S1i—Ag2—S2—C298.84 (4)Ag1—S2—C2—S2iii82.72 (4)
S2iii—Ag2—S2—C20.0Ag2—S2—C2—S2iii0.000 (1)
S1ii—Ag2—S2—Ag1148.61 (3)C1—N1—C11—C1290.4 (4)
S1i—Ag2—S2—Ag10.08 (4)C13—N1—C11—C1288.9 (4)
S2iii—Ag2—S2—Ag198.76 (4)C1—N1—C13—C1494.4 (4)
S2—Ag1—S3—C1i54.42 (13)C11—N1—C13—C1486.4 (4)
S1—Ag1—S3—C1i141.70 (12)C2—N2—C21—C2290.5 (3)
Ag1i—Ag1—S3—C1i70.11 (12)C21iii—N2—C21—C2289.5 (3)
S3i—Ag1—S3—C1i70.11 (12)
Symmetry codes: (i) x+1, y+1, z+1; (ii) x, y+1, z+1/2; (iii) x+1, y, z+3/2.

Experimental details

Crystal data
Chemical formula[Ag3(C5H10NS2)3]
Mr768.45
Crystal system, space groupMonoclinic, C2/c
Temperature (K)153
a, b, c (Å)18.138 (4), 9.5890 (19), 14.245 (3)
β (°) 105.30 (3)
V3)2389.8 (8)
Z4
Radiation typeMo Kα
µ (mm1)2.97
Crystal size (mm)0.25 × 0.22 × 0.18
Data collection
DiffractometerBruker SMART CCD area-detector
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.457, 0.586
No. of measured, independent and
observed [I > 2σ(I)] reflections
7241, 2853, 2506
Rint0.031
(sin θ/λ)max1)0.667
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.034, 0.079, 1.09
No. of reflections2853
No. of parameters124
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)1.59, 0.97

Computer programs: SMART (Bruker, 1998), SAINT-Plus (Bruker, 1998), SAINT-Plus, SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b), SHELXTL.

Selected geometric parameters (Å, º) top
Ag1—S22.4915 (11)Ag1—S3i2.9308 (10)
Ag1—S32.5333 (11)Ag2—S1i2.5457 (11)
Ag1—S12.6205 (11)Ag2—S22.7145 (10)
Ag1—Ag1i2.8336 (7)
S2—Ag1—S3119.54 (4)S1—Ag1—S3i65.19 (3)
S2—Ag1—S1128.56 (3)S1ii—Ag2—S1i125.84 (4)
S3—Ag1—S1109.49 (4)S1ii—Ag2—S2107.63 (3)
S2—Ag1—S3i101.75 (3)S1i—Ag2—S2117.10 (3)
S3—Ag1—S3i118.03 (2)S2iii—Ag2—S267.15 (4)
Symmetry codes: (i) x+1, y+1, z+1; (ii) x, y+1, z+1/2; (iii) x+1, y, z+3/2.
 

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