A three-dimensional heteronuclear polymer of [Ag2Fe(SCN)(5)-(DMF)](n) containing channels and one-dimensional Ag2S2-S-Ag2S2 chains with Ag center dot center dot center dot Ag interaction

作者：Li XL^*; Zhao CC; Chen JT; Du WX

来源：Chinese Journal of Chemistry, 2004, 22(6): 533-536.

• silver(I)-iron(III) heteronuclear polymer
• crystal structure
• thiocyanate bridge
• one-dimensional chain
• Ag... Ag interaction

The Ag2S2 rings connect [Fe(NCS)(5)(DMF)](2-) (DMF = N,N-dimethylformamide) octahedrons by bridging thiocyanates leading to a 3-D [Ag2Fe(SCN)(5)(DMF)](n) framework. The Fe(III) atoms are in the octahedral geometry and Ag(I) atoms are in the distorted tetrahedral geometry. One-dimensional Ag2S2-S-Ag2S2 wave-like strand chains along the b-axis and channels constructed from ten-membered Ag2Fe(SCN)(2)S rings along the c-axis feature the three-dimensional framework. The (AgAg)-Ag-... distance of 0.3103(1) nm in Ag2S2 rings indicates weak (AgAg)-Ag-... interaction. Such an Ag2S2-S-Ag2S2 chain in silver(I) complexes is unprecedented. Crystal data: M-r = 635.09, orthorhombic, Pnma, a = 1.64214(13) nm, b = 1.40075(11) nm, c = 0.84445(7) nm, V = 1.9424(3) nm(3), Z = 4, mu(Mo Kalpha) = 3.278 mm(-1), D-calcd = 2.172 g(.)cm(-3), F(000)= 1220, R-1 = 0.0443, wR(2) = 0.1138.

• 出版日期2004-6
• 单位中国科学院福建物质结构研究所; 江苏师范大学