Ligand dependence of pi-complex character in disilene-palladium complexes

Takeaki Iwamoto; Yumiko Sekiguchi; Naoki Yoshida; Chizuko Kabuto; Mitsuo Kira

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Ligand dependence of pi-complex character in disilene-palladium complexes

机译：二苯乙烯-钯络合物中π-络合物特征的配体依赖性

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The synthesis and structures of new 16-electron disilene palladium complexes with 2,6-dimethylphenyl isocyanide and phenyldimethylphosphine ligands [L~1L~2Pd{t-BuMe_2Si)_2Si=Si(SiMe_2Bu-t)_2},where L~1 = L~2 = PhMe_2P;L~1 =(cyclohexyl)_3P,L~2 = 2,6-dimethylphenyl isocyanide;L~1 = L~2 = 2,6-dimethylphenyl isocyanide] are described.Comparison of the X-ray structural parameters around the disilene moiety among these complexes and related bis(trimethylphosphine)(disilene)palladium and 14-electron(tricyclohexylphosphine)(disilene)palladium revealed that the pi-complex character is sensitive to the residual ligands and increases with decreasing the strength of sigma-donation from the ligands.

机译：具有2,6-二甲基苯基异氰化物和苯基二甲基膦配体[L〜1L〜2Pd {t-BuMe_2Si）_2Si = Si（SiMe_2Bu-t）_2}的新型16电子二烯钯配合物的合成和结构，其中L〜1 = L描述了〜2 = PhMe_2P; L〜1 =（环己基）_3P，L〜2 = 2,6-二甲基苯基异氰化物; L〜1 = L〜2 = 2,6-二甲基苯基异氰化物。X射线结构的比较这些配合物以及相关的双（三甲基膦）（disilene）钯和14电子（三环己基膦）（disilene）钯中的二烯成分周围的参数表明pi配合物特征对残留配体敏感，并随着σ强度的降低而增加-配体的捐赠。

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《Dalton transactions: An international journal of inorganic chemistry》 |2006年第1期|共6页
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Takeaki Iwamoto; Yumiko Sekiguchi; Naoki Yoshida; Chizuko Kabuto; Mitsuo Kira;
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Ligand dependence of pi-complex character in disilene-palladium complexes

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