Synthesis and characterization of dimeric organochalcogenido-bridged methylpalladium and allylpalladium complexes
作者:Anshu Singhal、Vimal K. Jain
DOI:10.1016/0022-328x(95)05388-6
日期:1995.5
C6H4CH3-4, C6H4Cl-4) have been synthesized and characterized by elemental analyses and nuclearmagneticresonance (1H, 13C and 31P) spectroscopy. The methylpalladium complexes exist either as cis isomers or as a mixture of cis and trans forms, with the former predominating. The allylpalladium complexes exist in syn and anti forms. The dynamic behaviour in these complexes was studied by variable-temperature
二聚体organochalcogenido桥接methylpalladium和类型的烯丙基配合物[钯2我2(μ-SR')2(PR 3)2 ]和[钯2(μ-ER')2(ν 3 -烯丙基)2 ](E = S或Se; R = Et,i Pr,t Bu,Ph,C 6 H 4 CH 3 -4,C 6 H 4 Cl-4)并通过元素分析和核磁共振表征(1 H,13 C和31P)光谱学。甲基钯配合物以顺式异构体形式或以顺式和反式形式的混合物形式存在,前者占主导地位。烯丙基钯络合物以顺式和反式形式存在。通过可变温度1 H NMR光谱研究了这些配合物中的动力学行为。的[钯几个反应2(μ-Cl)的2(ν 3 -烯丙基)2 ]与游离硫醇进行了研究。
Synthesis and characterization of methylpalladium(II) dithiolate complexes of the type [PdMe(S⌢S)(ER3)] (S⌢S = S2CNR 2, S2COEt, S2P(OR)2, S2 PPh2; ER3 = PMePh2, PPh3, AsPh3)
作者:Sanjay Narayan、Vimal K. Jain、S. Chaudhury
DOI:10.1016/s0022-328x(96)06619-3
日期:1997.3
Methylpalladium(II) dithiolate complexes of the type [PdMe(S ( ) over cap S)(ER3)] (S ( ) over cap S = S2CNR2 (R = Me or Et), S2COEt, S2P(OR)(2) (R = Et, Pr-n, Pr-1), S2PPh2; ER3 = PMePh2, PPh3, AsPh3) have been synthesized by the reaction of [Pd2Me2(mu-Cl)(2)(PMePh2)(2)] with sodium/potassium/ammonium salts of the dithio acid or by treatment of [PdMeCl(cod)] with ER3 followed by sodium/potassium/ammonium salts of the dithio ligand. All the complexes were characterized by elemental analysis, LR and nuclear magnetic resonance (H-1, (31)p) data.
Cationic methyl-palladium(II) complexes containing bidentate N ∧ O and P ∧ O ligands and a tridentate P ∧ O ∧ N ligand: Synthesis, carbonylation and catalytic applications in the copolymerisation of carbon monoxide and ethene
作者:George J.P. Britovsek、Kingsley J. Cavell、Melinda J. Green、Frank Gerhards、Brian W. Skelton、Allan H. White
DOI:10.1016/s0022-328x(96)06841-6
日期:1997.4
Cationic methyl-palladium complexes, containing chelating NO, PO and PON ligands, of the type [PdMe(YO)L]BF4} and [PdMe(PON)]BF4} [YO = methylpicolinate, L = PPh3, Ph2PCH2COOEt; YO = Ph2PCH2COOEt, L = PPh3, 2,6-lutidine; PON = diphenylphosphine-acetic acid-methyl-2-pyridylester (Ph2PCH2CO2CH2(NC5H4-2))] have been synthesized. The crystal structure of the complex [PdMe(NO)PPh3]BF4} indicates