Cunningham, Desmond; Firtear, Padraig; Molloy, Kiaran C., Journal of the Chemical Society, Dalton Transactions, 1983, p. 1523 - 1528
作者:Cunningham, Desmond、Firtear, Padraig、Molloy, Kiaran C.、Zuckerman, Jerald J.
DOI:——
日期:——
Di-<i>n</i>-butyltin Methyl- and Phenylphosphonates
作者:François Ribot、Clément Sanchez、Monique Biesemans、Frédéric A. G. Mercier、José C. Martins、Marcel Gielen、Rudolph Willem
DOI:10.1021/om010140x
日期:2001.6.1
Bu2Sn(O3PPh) (4), have been characterized by solid state 31P and 119Sn MAS NMR. Compound 1 exhibits a very well resolved 31P MAS NMR spectrum in which three different 2J(31P−119/117Sn)iso scalar couplings can be measured. 31P and 119Sn NMR, 31P−19Sn HMQC spectroscopy, and various other 2D NMR techniques at variable temperatures were used to unravel the basic structural unit of compounds 2 and 4 in solution
通过单晶X射线衍射确定的[Bu 2 Sn(HO 3 PMe)2 ] 2(1)的结构基于包含桥连和末端氢膦酸酯配体的二聚体。锡原子在形式上是五坐标的,但还表现出两个附加的远程触点d(Sn-O)≈3.14Å,这导致“ 5 + 2”类型的配位。该结晶化合物和其他三种非晶态化合物Bu 2 Sn(O 3 PMe)(2),Bu 2 Sn(HO 3 PPh)2(3)和Bu 2 Sn(O 3 PPh)(4),已通过固态31 P和119 Sn MAS NMR表征。化合物1表现出非常好的分辨31 P MAS NMR光谱,其中可以测量三个不同的2 J(31 P- 119/117 Sn)等标量耦合。31 P和119 Sn NMR,31 P- 19 Sn HMQC光谱和各种其他2D NMR技术在可变温度下用于揭示化合物2和4的基本结构单元在溶液中,该溶液被建议基于R 2 SnO 3类型的三角双锥,其具有两个顶和一个