The chemistry of heteroarylphosphorus compounds. Part 15. Phosphorus-31 nuclear magnetic resonance studies of the donor properties of heteroarylphosphines towards selenium and platinum(II)
作者:David W. Allen、Brian F. Taylor
DOI:10.1039/dt9820000051
日期:——
The donor properties of a series of heteroarylphosphines (bearing 2- and 3-furyl, 2- and 3-thienyl, and 1-methylpyrrol-2-yl groups directly bound to phosphorus) towards selenium and platinum(II) acceptors have been investigated by 31P n.m.r. studies of the one-bond coupling constants 1J(77Se–31P) and 1J(195Pt–31P). It is shown that the respective coupling constants increase as the heteroaryl groups
研究了一系列杂芳基膦(带有2-和3-呋喃基,2-和3-噻吩基和1-甲基吡咯-2-基直接键合到磷上)对硒和铂(II)受体的给体性质。单键耦合常数1 J(77 Se– 31 P)和1 J(195 Pt– 31 P)的31 P nmr研究。结果表明,随着杂芳基的吸电子性增加,各自的偶合常数增加,表明s增大。磷孤对的特征。考虑了这对于杂芳基膦和PPh 3的相对供体性质的含义。