Kinetic and Mechanistic Studies of Geometrical Isomerism in Neutral Square-Planar Methylpalladium Complexes Bearing Unsymmetrical Bidentate Ligands of α-Aminoaldimines
作者:Feng-Zhao Yang、Yu-Heng Wang、Mu-Chieh Chang、Kuo-Hsuan Yu、Shou-Ling Huang、Yi-Hung Liu、Yu Wang、Shiuh-Tzung Liu、Jwu-Ting Chen
DOI:10.1021/ic900296y
日期:2009.8.17
(7b); R = tBu, (R1, R2) = c-C4H8 (7c); R = tBu, R1 = iPr, R2 = H (7d); R = tBu, R1 = tBu, R2 = H (7e); R = Ph, R1 = R2 = Me (8a); R = Ph, R1 = R2 = Et (8b)) show geometrical isomerism. The relative ratios of trans/cis isomers appear to be predominated by the steric hindrance between the Pd-bound methyl group and imino or amino substituents (R and R1 and R2). The NMR studies for the substitution reaction
已经制备并表征了一系列α-氨基亚胺的半不稳定配体及其甲基钯配合物。在的形式中性正方形平面methylpalladium络合物[R 1 - [R 2 NCMe 2 CH═NR]将Pd(Me)的氯(R =我,R 1 = R 2 =我(图3a); R =我,R 1 = R 2 = Et(3b); R = Et,R 1 = R 2 = Me(4a); R = n Pr,R 1 = R 2 = Me(5a); R = i Pr,R 1 = R 2 = Me (6a); R = i Pr,R 1 = R 2 = Et(6b);R =我PR,(R 1,R 2)= C ^ -C 4 ħ 8(图6c); R = i Pr,R 1 = i Pr,R 2 = H(6d); R = i Pr,R 1 = t Bu,R 2 = H(6e);R = t Bu,R 1 = R 2 = Me(7a); R =吨Bu,R 1