Coordination chemistry of organometallic polydentate ligand. Reactive chemistry of the tridentate ligand trans-Fe(Ph2PQu-P) 2 (CO) 3 [ Ph2PQu = 2-diphenyl-phosphino-4-methylquinoline ] and molecular structure of [Fe(CO)3(μ-Ph2PQu)2HgI] + [HgI2]

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2000,（5）
• 页码范围: 722-728
• 页数: 7页
• 语种: 英文

摘要

Reaction of a new type of bidentate ligand PhPQu [ PhPQu = 2-diphenyiphosphino-4-methylquinoline] with Fe( CO)5 in bu tanol gave trans-Fe(PhPQu-P)(CO)2 (1). Compound 1, which can act as a neutral tridentate organometallic ligand, was reacted with ⅠB, ⅡB metal compounds and a rhodium complex to give six binuclear complexes with Fe－M bonds, Fe(CO)3(μ-Ph2PQu)MXn (2－7) [M= Zn( Ⅱ ), Cd( Ⅱ ), Hg( Ⅱ ), Cu( I ), Ag( I ), Ph( I ) ], and an ion-pair com plex [Fe(CO)3(μ-Ph2PQu)2HggI][HgI3]- (8). The structure of 8 was determined by X-ray crystallography. Complex 8 crystallizes in the space group P-1 with a = 1.0758(3), b= 1.6210(4), c = 1.7155(4) nm; α=75.60(2), β=71.81(2), γ= 81.78(2)° and Z=2 and its structure was refined to give agreement factors of R =0.050 and Rw=0.057. The Fe－Hg bonddistance is 0.2536 nm.