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Synthesis and reaction of 16-electron Cp~tRh halfsandwich complexes containing 1, 2-dichalcogenolate carborane ligands

机译:含1,2-二氯异庚酸酯碳硼烷配体的16电子Cp〜tRh半三明治复合物的合成与反应

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摘要

The reactions of [Cp~tRhCl(μ-Cl)]_2 (1) (Cp~t = ~tBu_2C_5H_3) with Li_2E_2C_2B_(10)H_(10) (E = S, Se) lead to the green 16-electron dichalcogenolate complexes Cp~tRh(E_2C_2B_(10)H_(10)) [E = S(2a), Se(2b)]. The 16-electron complexes 2a and 2b can take up two-electron donor ligands such as tert-butyl isoni-trile and carbon monoxide to give the 18-electron dichalcogenolate derivatives Cp~t(L)(E_2C_2B_(10)H_(10)) [L = tBuNC, E = S(3a), Se(3b); L = CO, E = S(4a), Se(4b)]. The molecular structures of complexes 2a and 3a were determined by X-ray crystal structure analysis. The molecular structure of 16-electron complex 2a shows the pseudoaromatic system in IrSe_2C_2 five numbered ring.
机译:[Cp〜tRhCl(μ-Cl)] _ 2(1)(Cp〜t =〜tBu_2C_5H_3)与Li_2E_2C_2B_(10)H_(10)(E = S,Se)的反应生成绿色的16电子二卤gen酸酯复合物Cp〜tRh(E_2C_2B_(10)H_(10))[E = S(2a),Se(2b)]。 16电子配合物2a和2b可以吸收两个电子供体的配体,例如叔丁基异腈和一氧化碳,以生成18电子二氢萘二酸酯衍生物Cp〜t(L)(E_2C_2B_(10)H_(10) )[L = tBuNC,E = S(3a),Se(3b); L = CO,E = S(4a),Se(4b)]。通过X射线晶体结构分析确定配合物2a和3a的分子结构。 16电子配合物2a的分子结构显示IrSe_2C_2五号环中的假芳香系统。

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