Thienyl Carboxylate Ligands Bound to and Bridging MM Quadruple Bonds, M = Mo or W: Models for Polythiophenes Incorporating MM Quadruple Bonds
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- 作者：Matthew J. Byrnes ; Malcolm H. Chisholm ; Robin J. H. Clark ; Judith C. Gallucci ; Christopher M. Hadad ; and Nathan J. Patmore
- 刊名：Inorganic Chemistry
- 出版年：2004
- 出版时间：October 4, 2004
- 年：2004
- 卷：43
- 期：20
- 页码：6334 - 6344
- 全文大小：388K
- 年卷期：v.43,no.20(October 4, 2004)
- ISSN：1520-510X
文摘
A series of compounds of the form [M2L4] and [{(tBuCO2)3M2}2(
f">-L')] have been made where M = Mo or W, L =a thienyl, bithienyl, or terthienyl carboxylate, and L' = a corresponding thienyl dicarboxylate. The electronic absorptionspectra are reported and the electronic structures discussed. Intense metal-to-ligand charge transfer bands traversethe visible and near-IR regions of the electronic absorption spectrum. The compounds show reversible metal-based oxidations and quasireversible ligand-based reductions. The molecular structure of Mo2(O2C-2-Th)4·2THF isreported, on the basis of a single crystal X-ray diffraction study. These compounds provide insight into the expectedproperties of related dimetalated polythiophenes incorporating MM quadruple bonds.
f">-L')] have been made where M = Mo or W, L =a thienyl, bithienyl, or terthienyl carboxylate, and L' = a corresponding thienyl dicarboxylate. The electronic absorptionspectra are reported and the electronic structures discussed. Intense metal-to-ligand charge transfer bands traversethe visible and near-IR regions of the electronic absorption spectrum. The compounds show reversible metal-based oxidations and quasireversible ligand-based reductions. The molecular structure of Mo2(O2C-2-Th)4·2THF isreported, on the basis of a single crystal X-ray diffraction study. These compounds provide insight into the expectedproperties of related dimetalated polythiophenes incorporating MM quadruple bonds.