Double-Stranded W/Ag/S Chain Structure Generated from [syn-{WO(NCS)2}2(-S)2] Building B
详细信息 查看全文
- 作者：Wenjian Zhang ; Xintao Wu ; Biao Wu ; Shuyan Yu ; Gabriella Santoni ; and Dieter Rehder
- 刊名：Inorganic Chemistry
- 出版年：2003
- 出版时间：February 24, 2003
- 年：2003
- 卷：42
- 期：4
- 页码：1130 - 1134
- 全文大小：164K
- 年卷期：v.42,no.4(February 24, 2003)
- ISSN：1520-510X
文摘
The dimeric WV complex [Et4N]4[syn-{O=W(NCS)3}2(
-S)2], 1, prepared from [Et4N]2[WS4], SCN-, and Cd2+, showsinteresting reactivity patterns in that the thiocyanate trans to the oxo group can in part be replaced, initiated byMn2+, by dimethylformamide (DMF) to form [Et4N]2.5[{O=W(NCS)2.25(DMF)1.25}2(-S)2], 2. With Ag+, 1 undergoespartial replacement of SCN- by DMF and coordinates to the silver ions to generate {[Et4N]2.5[{W2O2(NCS)2(-S)2}(-NCS)2(DMF){Ag0.5(SCN)}]}n, 3. Compound 3 constitutes a polymeric double-stranded chain, with normalbonding interactions [via W-(-NCS)-Ag] between the two strands, and moderate intrastrand [W-(-NCS)···Ag]bonding. The crystal and molecular structures of the three compounds are described.
-S)2], 1, prepared from [Et4N]2[WS4], SCN-, and Cd2+, showsinteresting reactivity patterns in that the thiocyanate trans to the oxo group can in part be replaced, initiated byMn2+, by dimethylformamide (DMF) to form [Et4N]2.5[{O=W(NCS)2.25(DMF)1.25}2(-S)2], 2. With Ag+, 1 undergoespartial replacement of SCN- by DMF and coordinates to the silver ions to generate {[Et4N]2.5[{W2O2(NCS)2(-S)2}(-NCS)2(DMF){Ag0.5(SCN)}]}n, 3. Compound 3 constitutes a polymeric double-stranded chain, with normalbonding interactions [via W-(-NCS)-Ag] between the two strands, and moderate intrastrand [W-(-NCS)···Ag]bonding. The crystal and molecular structures of the three compounds are described.