名称:
                                cis-Bis(acetonitrile)tetrachlorotin(IV) acetonitrile solvate,cis-tetrachlorobis(propiononitrile)tin(IV) propiononitrile solvate,cis-tetrachlorobis(isobutyronitrile)tin(IV),cis-tetrachlorobis(cyclohexanecarbonitrile)tin(IV) andcis-tetrachlorobis(o-toluonitrile)tin(IV), all determined atca150 K
                             
                            
                                摘要:
                                The structures of the title compounds, [SnCl4(C2H3N)(2)] .C2H3N, [SnCl4(C3H5N)(2)] . C3H5N, [SnCl4(C4H7N)(2)], [SnCl4( C7H11N)(2)] and [SnCl4(C8H7N)(2)], were determined with the intention of examining the effect of various substituent types in nitrile ligands, RCN, behaving in a common sigma-donor situation {in this case, as cis-bis complexes with SnCl4, viz. [SnCl4(RCN)(2)]}, on (i) the strength of complex formation with the metal atom and (ii) other bonding behaviour of the metal ( for example, trans effects). The five structures exhibit no non-trivial systematic perturbation that can be said to be contingent on the substituent type.