作者:Obinna C. Okpareke、William Henderson、Senem Akkoç、Burak Coban
DOI:10.1016/j.ica.2021.120707
日期:2022.2
the monochelated species from the ESI mass spectra of the platinum complexes. 31P1H} NMR characterisation of the diarylmethane-bridged bisthiourea complexes [M2(SC(NPh)NHC6H5)2CH2}L4]·2BPh4 (M = Pt, Pd, Ni; L = PPh3 or L2 = dppe) showed complex multiplets indicative of the formation of several isomers of the products. In contrast, the complexes with bridging alkylene chains showed only a single isomer
[Pt 2 (SC(NPh)NHC 6 H 4 ) 2 CH 2 }(PPh 3 ) 4 ]·2BPh 4 , [M 2 ( SC(NPh)NHC 6 H 4 ) 2 CH 2 }(dppe) 2 ]·2BPh 4 (M = Pd, Ni), [Pt 2 SC(NPh)NH} 2 (CH 2 ) n (PPh 3 ) 4 ]·2BPh 4 (n = 4, 6, 8, 12), 和 [M 2SC(NPh)NH} 2 (CH 2 ) 4 (dppe) 2 ]·2BPh 4 (M = Pd, Ni) 已合成,其中dppe = Ph 2 PCH 2 CH 2 PPh 2。复合物的 ESI 质谱分析表明存在单螯合和双螯合物质,分别有一个或两个金属中心与双硫脲配位。增加金属前体的摩尔比和反应时间(从 2 小时到 8 小时)导致单螯合物种从铂配合物的 ESI 质谱图中消失。31 P 1 H} NMR