A novel one-dimensional silver cylinder stabilized by mixed 2-mercaptobenzoic acid and ethylenediamine ligands

作者：Sun Di^*; Yan Zhi Hao

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2012, 68: M229-+.

DOI：10.1107/S0108270112031125

A novel infinite one-dimensional silver cylinder, namely poly[mu-ethylenediamine-mu(5)-(2-sulfanidylbenzoato)-mu(4)-(2-sulfanidylbenzoato)-tetrasilver(I)], [Ag-4(C7H4O2S)(2)(C2H8N2)](n), has been synthesized by one-pot reaction of equivalent molar silver nitrate and 2-mercaptobenzoic acid (H2mba) in the presence of ethylenediamine (eda). One Ag atom is located in an AgS2NO four-coordinated tetrahedral geometry, two other Ag atoms are in an AgS2O three-coordinated T-shaped geometry and the fourth Ag atom is in an AgSNO coordination environment. The two mba ligands show two different binding modes. The mu(2)-N:N'-eda ligand, acting as a bridge, combines with mba ligands to extend the Ag-I ions into a one-dimensional silver cylinder incorporating abundant Ag center dot center dot center dot Ag interactions ranging from 2.9298 (11) to 3.2165 (13) angstrom. Interchain N-H center dot center dot center dot O hydrogen bonds extend the one-dimensional cylinder into an undulating two-dimensional sheet, which is further packed into a three-dimensional supramolecular framework by van der Waals interactions; no pi-pi interactions were observed in the crystal structure.

• 出版日期2012-8
• 单位山东大学