Metal complexes of new chiral tridentate ligands with N, P and S donors: The crystal structure of [(S)-Ph2POCH2CH(NMe2)CH2CH2SCH3]W(CO)3
作者:J.W. Faller、Naijie Zhang、Kevin J. Chase、W.Kenneth Musker、Anthony R. Amaro、Christopher M. Semko
DOI:10.1016/0022-328x(94)80047-2
日期:1994.4
Two new ligands, (S)-Ph2POCH2CH(NMe2)CH2CH2SCH3, derived from L-methionine, and (R)-Ph2POCH2CH(NMe2)CH2-SCH3 from L-cysteine have been prepared and characterized. Several metal complexes of Pd, Mo and W have been prepared. These ligands produce a chiral electronically asymmetric environment at the metal that is evidenced by trans influences on the other ligands. A crystal structure has been determined
两个新的配体,(小号)-Ph 2 POCH 2 CH(NME 2)CH 2 CH 2 SCH 3,衍生自大号-甲硫氨酸,和(- [R)-Ph 2 POCH 2 CH(NME 2)CH 2 -SCH 3从已经制备并表征了L-半胱氨酸。已经制备了Pd,Mo和W的几种金属配合物。这些配体在金属上产生手性电子不对称环境,这可以通过反式影响其他配体来证明。已确定[(S)-Ph 2的晶体结构POCH 2 CH(NMe 2)CH 2 CH 2 SCH 3 ] W(CO)3。硫在固体中采用S s构型,并且在羰基的度量参数中观察到明显的反式影响。这个钨单斜空间群复杂结晶P 2 1与一个= 8.8435(6),b = 14.384(1)埃,c ^ = 9.546(1)埃,β = 107.01(8),Ž = 2和V = 1161.0(4)3。