Tetra­kis(triphenyl­arsane-κAs)silver(I) trifluoro­acetate hemihydrate methanol hemisolvate

Ng, S.W.

doi:10.1107/S1600536812045072

Volume 68
Part 12
Page m1537
December 2012

Received 27 October 2012
Accepted 31 October 2012
Online 28 November 2012

Key indicators
Single-crystal X-ray study
T = 100 K
Mean (C-C) = 0.009 Å
Disorder in main residue
R = 0.048
wR = 0.111
Data-to-parameter ratio = 17.2
Details

Tetrakis(triphenylarsane-As)silver(I) trifluoroacetate hemihydrate methanol hemisolvate

Seik Weng Ng ^a,^b ^*

^aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and ^bChemistry Department, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia
Correspondence e-mail: seikweng@um.edu.my

The Ag^I atom in the title hydrated solvated salt, [Ag(C₁₈H₁₅As)₄](CF₃CO₂)·0.5CH₃OH·0.5H₂O, is coordinated by four As atoms from triphenylarsane ligands in a distorted tetrahedral geometry. In the crystal, O-HO hydrogen bonding occurs between carboxylate groups of anions and lattice solvent molecules. Of the four triphenylarsane ligands in the Ag complex cation, two each have an equally disordered phenyl ring while the trifluoroacetate anion is disordered over two positions with respect to the lattice methanol and water molecules which both show half-occupyncy. The crystal studied was a non-merohedral twin with a 13.6 (1)% contribution of the minor twin component.

Related literature

For a related compound [Ag(C₁₈H₁₅P)₄](CF₃CO₂)·C₂H₅OH, see: Ng (2012).

Experimental

Crystal data

[Ag(C₁₈H₁₅As)₄](C₂F₃O₂)·0.5CH₄O·0.5H₂O
M_r = 1470.80
Triclinic, $[P \overline 1]$
a = 11.9069 (2) Å
b = 14.5530 (3) Å
c = 18.5573 (4) Å
= 88.893 (2)°
= 85.782 (1)°
= 86.808 (1)°
V = 3201.57 (11) Å³
Z = 2
Mo K radiation
= 2.42 mm^-1
T = 100 K
0.22 × 0.17 × 0.11 mm

Data collection

Bruker SMART APEX diffractometer
Absorption correction: multi-scan (TWINABS; Bruker, 2009) T_min = 0.618, T_max = 0.776
48380 measured reflections
14449 independent reflections
10289 reflections with I > 2(I)
R_int = 0.058

Refinement

R[F² > 2(F²)] = 0.048
wR(F²) = 0.111
S = 1.03
14449 reflections
838 parameters
197 restraints
H-atom parameters constrained
_max = 1.08 e Å^-3
_min = -0.56 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O3-H3O1	0.84	1.97	2.80 (2)	175
O1w'-H1w1O1'	0.84	2.02	2.86 (3)	179

Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5641 ).

Acknowledgements

I thank Dr Kong Mun Lo for providing the crystal and the Ministry of Higher Education of Malaysia (grant No. UM.C/HIR/MOHE/SC/12) for supporting this study.

References

Barbour, L. J. (2001). J. Supramol. Chem. 1, 189-191.
Bruker (2009). APEX2, SAINT and TWINABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Ng, S. W. (2012). Acta Cryst. E68, m1536.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.

metal-organic compounds