Synthesis and characterization of a series of zinc complexes stabilized by 1,1,3,3-tetraalkylguanidinate (TAG) ligands: [Zn(μ-TAG){N(SiMe3)2}]2
摘要:
A series of novel structurally varied low-coordinate zinc complexes utilizing 1,1,3,3-tetraalkylguanidinate (TAG) ligands were synthesized and characterized. Li(TAG) and lithium bis-trimethylsilylamide, LiN(SiMe3)(2), were successfully reacted with ZnCl2 in a 1:1 ratio to yield the corresponding dinuclear complexes with the general formula [Zn(mu-TAG) {N(SiMe3)(2)}](2), where[GRAPHICS]and[GRAPHICS]Compounds 1-6 were characterized by single-crystal X-ray diffraction. The bulk powders for all complexes were found to be in agreement with the crystal structures based on elemental analyses, FT-IR spectroscopy, and H-1 and C-13 NMR studies. (C) 2007 Elsevier Ltd. All rights reserved.