Reactions of palladium dichloride with 4-(trimethylammonio)benzenethiolate and phosphine ligands
Reactions of palladium dichloride with 4-(trimethylammonio)benzenethiolate and phosphine ligands
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DOI:
10.1016/j.ica.2011.10.008
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发表时间:
2012-03
影响因子:
2.8
通讯作者:
Ai-Xia Zheng;Zhi‐Gang Ren;Hui-Fang Wang;Hong‐Xi Li;J. Lang
中科院分区:
文献类型:
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作者:
Ai-Xia Zheng;Zhi‐Gang Ren;Hui-Fang Wang;Hong‐Xi Li;J. Lang
Reactions of PdCl2·2H2O with 2equiv. of 4-(trimethylammonio)benzenethiolate (Tab) (prepared in situ from a mixture of TabHPF6and Et3N in MeOH) and seven phosphine ligands: PPh3, 1,1-bis(diphenylphosphino)methane (dppm), 1,2-bis(diphenylphosphino)ethane (dppe), 1,3-bis(diphenylphosphino)propane (dppp), 1,4-bis(diphenylphosphino)butane (dppb), N,N,N′,N′-tetra(diphenylphosphanylmethyl)ethylene diamine (dppeda), and 1,4-N,N,N′,N′-tetra(diphenylphosphanylmethyl)benzene diamine (dpppda), afforded a family of mononuclear and dinuclear Pd(II)/Tab/phosphine complexes, [Pd2(PPh3)2(Tab)2(μ-Tab)2](PF6)4(1), [Pd2(dppm)2(Tab)2(μ-Tab)](PF6)4(2), [Pd2(dppb)(Tab)2(μ-Tab)2]Cl4(3), [PdL(Tab)2](PF6)2(4: L=dppe; 5: L=dppp) and {[PdL(Tab)2]2}Cl4(6: L=dppeda; 7: L=dpppda). These compounds were characterized by elemental analysis, IR spectra, UV–Vis spectra,1H and31P{1H} NMR, electrospray ionization (ESI) mass spectra and single-crystal X-ray diffraction. In the structure of 1–7, each Pd(II) adopt an approximate square planar coordination geometry. The results provide an interesting insight into the chemistry of palladium(II)/thiolate/phosphine complexes.