Tetrasilacyclobutadiene and Cyclobutadiene Tricarbonylruthenium Complexes: [η<sup>4</sup>-(<sup><i>t</i></sup>Bu<sub>2</sub>MeSi)<sub>4</sub>Si<sub>4</sub>]Ru(CO)<sub>3</sub> and [η<sup>4</sup>-(Me<sub>3</sub>Si)<sub>4</sub>C<sub>4</sub>]Ru(CO)<sub>3</sub>
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The novel ruthenium tricarbonyl complexes (η4-tetrasilacyclobutadiene)tricarbonylruthenium [η4-(tBu2MeSi)4Si4]Ru(CO)3 2 and (η4-cyclobutadiene)tricarbonylruthenium [η4-(Me3Si)4C4]Ru(CO)3 4 were synthesized by the reaction of either the dipotassium salt of a tetrasilacyclobutadiene dianion derivative [(tBu2MeSi)4Si4]2−•2K+ 1 or the dilithium salt of a cyclobutadiene dianion derivative [(Me3Si)4C4]2−•2Li+ 3 with [Ru(CO)3Cl2]2. The spectral and structural characteristics of both 2 and 4 were compared with each other to reveal the general tendencies of the influence of the nature of skeletal atoms and transition metal on the geometry of the four-membered ring ligand and its electronic properties.
创建时间：
2016-02-26
