From mono to polydentate azole and benzazole derivatives, versatile ligands for main group and transition metal atoms
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- 作者：Rosalinda Contreras ; Angelina Flores-Parra ; Edgar Mijangos ; Fabiola Té ; llez ; Horacio Ló ; pez-S ; oval ; Norá ; h Barba-Behrens
- 关键词：Azoles and benzazoles coordination chemistry ; Metal ions
- 刊名：Coordination Chemistry Reviews
- 出版年：2009
- 出版时间：August 2009
- 年：2009
- 卷：253
- 期：15-16
- 页码：1979-1999
- 全文大小：3929 K
文摘
Herein we discuss contributions in the coordination chemistry of azoles and benzazoles, from our and some other research groups. Reactions of polydentate ligands with a diverse combination of donor atoms, as N, O, S, P, with main group and transition metals are commented, as well as their structural analysis. There is a versatile chemistry involved in these compounds, based on a great structural diversity. The ligands promote hypervalent atoms, a wide spectrum of molecular geometries and interactions. The central atoms vary from tri- to octacoordinated. Metallacycles are formed with the participation of the metal ion into the electronic delocalization of the organic π-systems. The high electron density of the ligands, their planar delocalized and rigid framework favor many weak interactions, giving place to macromolecular assemblies based on hydrogen bonds, π-stacking and Lewis acid–base coordination. The compounds offer the possibility of their use as antiparasites drugs, biocides or anticancer substances and in materials science.