Crystal structure of 4-aminobenzenesulfonosilver(I), C6H6AgNO3S

Abstract

C6H6AgN03S, monoclinic, P12i /c l (No. 14), a = 9.109(5) Â, b = 8.910(5) Â, c = 9.546(6) Â, β = 100.076(7)°, V = 762.8 Â , Z = 4, Rgt(F) = 0.030, wRKi(F) = 0.078, T= 293 K. Source of material All reagents and solvents were used as obtained without further purification. An ammonium solution (10 ml) of Ag20 (116 mg, 0.5 mmol) and 4-aminobenzenesolfonic acid (159 mg, 1.0 mmol) were stood still for 1 week to evaporate most of the ammonium gas. Large colorless rod-like crystals of the title complex were deposited and collected by filtration, washed with acetonitrile and diethyl ether and dried in a vacuum desiccator over silica gel (yield 43%). Elemental analysis: found C, 25.49%; H, 2.17%; N, 4.86%; calc. for C 6 H 6 AgN0 3 S C, 25.73%; H, 2.16%; N, 5.00%. Discussion Preparation of noble metal complexes is very important in the development of optical materials, polymer conductors, catalyst carriers, and other applications [1]. The isolation of s i lve r® complexes is complicated by the fact that they often form polynuclear complexes and are generally light sensitive. Additionally, nearly all polymeric si lver® complexes are water insoluble and most of them are light unstable [2,3]. In this work, -1-aminophenylsulfonate was utilized as ligand to ligate silver !ons and subsequently keep them soluble in water and stable to light. The title complex is an electronically neutral mono-nuclear compound. In the title compound, the Ag( l ) atom is four-coordinated by three oxygen atoms and one nitrogen atom from each of the four aminophenylsulfonate ligands. The AgOiN coordination is a severely distorted tetrahedron (the angles around the silver(I) atom are from 77.68(8)° to 132.35(9)°). The Ag—O (average 2.444(4) A) and Ag—Ν (2.250(3) A) bond lengths in the title complex are slightly longer than the similar bond contacts. To decrease steric effects, the four aromatic rings are located far away from each other. The S atom in the ligand is in the slightly distorted tetrahedral geometry. Table 1. Data collection and handling. Crystal: Wavelength: μ· Diffractometer, scan mode: 2$max: W(/iW)mCasured, N(hkl)unique: Cr i te r ion f o r 70bs, N(hkl)gt: N(param) refined: Programs: colorless, size 0.13 χ 0.41 χ 0.56 mm Mo Ka radiation (0.71073 Â) 28.74 cm Bruker SMART CCD, φ/ω 52.88° 4126, 1507 /obs > 2 a(Iobs), 1286 133 SHELXTL [3], SHELXTL-plus [4] Table 2. Atomic coordinates and displacement parameters (in A). Atom Site X y ζ U so H(l) 4e 0.561(4) 0.482(4) 0.405(4) 0.035(9) H(2) 4e 0.320(4) 0.511(5) 0.313(4) 0.04(1) H(3) \e 0.390(5) 0.295(4) -0.045(5) 0.05(1) H(4) 4e 0.633(5) 0.278(4) 0.049(4) 0.04(1) H(5) \e 0.158(4) 0.410(4) -0.028(4) 0.033(9) H(6) 4e 0.134(4) 0.490(5) 0.119(4) 0.04(1) * Correspondence author (e-mail: hlzhu@wist.edu.cn) Unauthenticated Download Date | 6/27/16 7:16 AM