Coordination studies of the ligand series RNH·CØ·(CH2)n·CØ·NHR where R=alkyl, aryl; Ø=O, S and n=0,1,2. Part 6. Crystal structures and bonding considerations of the ligands MeNH·CO·CH2·CO·NHMe (L1), MeNH·CO·CH2·CH2·CO·NHMe (L4), MeNH·CS·CH2·CS·NHMe(L5) and the SnIV complexes SnBr4L1·L1, SnBr4L2·2THF and SnBr4L3·MeCN where L2=iC3H7NH·CO·CH2·CO·NHiC3H7 and L3=iC3H7NH·CS·CH2·CS·NHiC3H7
作者:Gerald R. Willey、Robert J. Baker、John V. Haslop、Marcus P. Spry、Michael G.B. Drew
DOI:10.1016/s0277-5387(98)00108-9
日期:1998.9
attachment for these six coordinate mononuclear cis-octahedral Sn(IV) complexes. In all three structures, the NH groups are involved in intermolecular hydrogen bonding being linked either to C=O\C=S groups of adjacent molecules, or solvent molecule(s) entrapped in the lattice and\or halogen atom(s) of a neighbouring SnBr4 moiety. The general range of Sn-Br distances is 2.504(3)-2.565(12)Å excluding those halogen
通过X射线衍射研究确定了配体MeNH·CO·CH 2 ·CO·NHMe,MeNH·CO·CH 2 ·CH 2 ·CO·NHMe和MeNH·CS·CH 2 CHS·CS·NHMe的晶体结构。骨架C–C,C–N和C = O \ C = S的键距和相关的键间角都非常相似,并且这些分子的堆积主要由N–H···型的分子间氢键决定。 O = C,在较小程度上为N–H··S = C。为了比较的装置的所有的键参数结构表征属于N,N'-二取代的一系列相关的配体RNH·CO·(CH 2)ñ ·CO·NHR,其中[R =烷基; Ø= O,S和n列出= O,1、2,并且提供了包括构象变化在内的此类配体的特征的一般概述。SnBr 4(MeNH·CO·CH 2 ·CO·NHMe)·MeNH·CO·CH 2 ·CO·NHMe,SnBr 4(i PrNH·CO·CH 2 ·CO·NH i Pr)·2THF和SnBr 4(i