Synthesis and Characterizations of Ferrocenyl Carbonyl Chromium and Cobalt Clusters

Autor: Li-Min Han, Guang-Bin Zhang, Mei-Hua Luo, Linhong Weng, Rui-Jun Xie, Quan-Ling Suo, Ning Zhu
Rok vydání: 2010
Předmět:
Zdroj: Journal of Cluster Science. 21:789-801
ISSN: 1572-8862
1040-7278
DOI: 10.1007/s10876-010-0334-6
Popis: Two novel bimetallic complexes, [Cr(CO)3(η 6-C6H5)–C≡C–C6H4–Fc] (Fc = C5H5FeC5H4] (1) and [Cr(CO)3(η 6-C6H5)–C ≡ C–Fc–C(CH3)2–Fc] (3), were synthesized by the Sonogashira coupling reaction. By using of (1) and (3) as ligands to react with Co2(CO)8, two others novel polymetallic complexes, [Cr(CO)3(η 6-C6H5){Co2(CO)6-η 2-μ 2-C≡C–}–C6H4–Fc] (2) and [Cr(CO)3(η 6-C6H5){Co2(CO)6-η 2-μ 2-C≡C–}Fc–C(CH3)2–Fc] (4) were obtained. Four carbonyl complexes were characterized by elemental analysis, FT-IR, NMR and MS. The molecular structures of complexes (1), (2) and (4) were determined by single crystal X-ray diffraction. The interactions among the ferrocenyl, Cr(CO)3 and Co2(CO)6-η 2-μ 2-C≡C– units were investigated by cyclic voltammetry.
Databáze: OpenAIRE
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