Steric and Electronic Effects of Unidentate Tertiary Phosphine Ligands on Chemical and Absorption Spectral Properties of Their Mixed Cobalt(III) Complexes with Acetylacetonate Ions
作者:Katsuaki Katoh、Hirofumi Sugiura、Kazuo Kashiwabara、Junnosuke Fujita
DOI:10.1246/bcsj.57.3580
日期:1984.12
phosphine–cobalt(III) complexes containing acetylacetonate ions were prepared. The complexes are grouped into four types; (A) cis- and trans-([Co(acac)2(PRnPh3−n)2]+, (B) trans-[Co(acac)2(H2O)(PRnPh3−n)]+, (C) trans-[Co(acac)2(L)(PMe2Ph)n+, and (D) trans-(P,P)-[Co(acac)(CN)2(PRnPh3−n)2] (acac: acetylacetonate ion, R: CH3(Me), C2H5(Et), n-C3H7(Pr), i-C3H7(Pri), n-C4H9(Bu), i-C4H9(Bui), c-C6H11 (Cy), Ph: C6H5, L: NH3
制备了大量含有乙酰丙酮离子的新型单齿叔膦-钴(III)配合物。这些复合体分为四种类型;(A) 顺式和反式 ([Co(acac)2(PRnPh3−n)2]+, (B) trans-[Co(acac)2(H2O)(PRnPh3−n)]+, (C) trans -[Co(acac)2(L)(PMe2Ph)n+,和 (D) trans-(P,P)-[Co(acac)(CN)2(PRnPh3−n)2](acac:乙酰丙酮离子,R : CH3(Me), C2H5(Et), n-C3H7(Pr), i-C3H7(Pri), n-C4H9(Bu), i-C4H9(Bui), c-C6H11 (Cy), Ph: C6H5, L: NH3, CH3NH2, C5H5N(py), NCS−). A 型配合物形成不同比例的顺式和反式异构体,这取决于膦配体的体积和碱度,以及配合物 R=Me 的比例和 Et 进行了一些详细的检查。A