摘要
SnCl_4作为有机合成的重要催化剂受到人们的广泛关注.由于SnCl_4衍生的配位化合物中的锡原子具有四配位和六配位的功能而受到人们的重视.已知DMF能与SnCl_4生成确定的SnCl_4·2DMF配合物.我们曾系统地研究了SnCl_4的水合水解产物及常用有机溶剂的溶剂化产物的^(119)Sn核磁共振谱.在用NMR研究SnCl_4与DMF(N,N-二甲基甲酰胺)的相互作用过程中,我们得到了一个新的产物.测定了它的晶体结构[Sn_2Cl_6(μ-OH)_2(DMF)_2]·4DMF.
A binuclear tin complex [Sn_2Cl_6(μ-OH)_2(DMF)_2]·4DMF has been synthesizedthrough direct reaction of SnCl_4·5H_2O with DMF. Its molecular and crystal structurehas been determined by single X-ray diffraction technique. The crystal is triclinic withspace group P1. The unit cell parameters are a = 9.153 (2), b = 10.722 (3), c =12.192(3) A, α= 63.07(2), β= 93.26 (2), γ= 65.75 (2), V = 928.21 (36) A^3, D_c= 1.649g·cm^(-3),Z = 1, The tin atom in the complex takes six-coordinated distorted octahedralconfiguration with sp^3 d^2 hybrid. The two tin atoms are connected through hydroxylbridge to form a plane at the molecular center. The four noncoordinated DMFmolecules distribute symmetrically around the dimer. The whole complex has aninversion center which coincides with the gravity center of the parallelogram.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1990年第6期743-746,共4页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
