Luminescent α-diimine complexes of ruthenium(II) containing scorpionate ligands
作者:Ling Huang、Kevin J. Seward、B.Patrick Sullivan、Wayne E. Jones、John J. Mecholsky、Walter J. Dressick
DOI:10.1016/s0020-1693(00)00301-7
日期:2000.12
ligand and Z is a bis -coordinated scorpionate ligand such as tris -(1-pyrazolyl)methane (HC(pz) 3 , pz=1-pyrazolyl; n =2) or tetrakis-(1-pyrazolyl)borate anion (B(pz) 4 − ; n =1). The complexes each exhibit strong visible absorption assigned as a π*(L)←dπ(Ru) metal-to-ligand charge-transfer (MLCT) transition characteristic of the cis -L 2 Ru 2+ kernel. A corresponding MLCT excited state emission is
Preparations and characterization of new 2-furfurylpalladium(II) complexes
作者:Masayoshi Onishi、Toshihiro Ito、Katsuma Hiraki
DOI:10.1016/s0022-328x(00)88982-2
日期:1981.4
afford [Pd(η3-CH2Fu)Cl(PPh3)] or [Pd(η1-CH2Fu)Cl(4-picoline)2], respectively. Complex I was treated with Tl(acac), AgCIO4, and Na[BPz3R] (Pz = 1-pyrazolyl, R = H or Pz) to give [Pd(η1-CH2Fu)(acac)(PPh3)], [Pd(η3-CH2Fu)-(PPh3)2]ClO4, and [Pd(η1-CH2Fu)(BPz3R)(PPh3)], respectively. These new 2-furfurylpalladium(II) complexes were characterized on the basis of elemental analysis, electric conductivity,
A hydridoruthenium(II) complex [RuClH(CO)(PPh3)3] reacted easily with acrylonitrile and fumaronitrile to give chloro-bridged binuclear (1-cyanoethyl)ruthenium(II) complexes, [Ru(MeCHCN)Cl(CO)(PPh3)2}2] (2) and [Ru(NCCH2CHCN)Cl(CO)(PPh3)2}2], respectively. Complex 2 reacted with 4-picoline (pic), Na[BHPz3] (Pz=1-pyrazolyl), Na[BPz4], and Na[Et2NCS2]·3H2O to afford the corresponding (1-cyanoethyl)ruthenium(II)
氢化钌 (II) 配合物 [RuClH(CO)(PPh3)3] 容易与丙烯腈和富马腈反应,生成氯桥联双核 (1-氰乙基)钌 (II) 配合物 [Ru(MeCHCN)Cl(CO)( PPh3)2}2] (2) 和 [Ru(NCCH2CHCN)Cl(CO)(PPh3)2}2]。配合物2与4-甲基吡啶(pic)、Na[BHPz3](Pz=1-吡唑基)、Na[BPz4]和Na[Et2NCS2]·3H2O反应得到相应的(1-氰乙基)钌(II)配合物, [Ru(MeCHCN)Cl(CO)(pic)(PPh3)}2] (3), [Ru(MeCHCN)(BHPz3)(CO)(PPh3)](伴有少量[Ru2(MeCHCN) 2Cl(BHPz3)(CO)2(PPh3)4])、[Ru2(MeCHCN)2Cl(BPz4)(CO)2(PPh3)2]和Na[Ru(MeCHCN)Cl(Et2NCS2)(CO)(PPh3)
Syntheses and Characterization of Some New (3-Oxo-1-cyclohexenyl) palladium(II) Complexes
trans-Chloro(3-oxo-1-cyclohexenyl)bis(triphenylphosphine)palladium(II) (1) reacted with 1,2-bis(diphenylphosphino)ethane (dppe), 1,10-phenanthroline (phen), sodium diethyldithiocarbamate–water (1/3), and sodium tetra(1-pyrazolyl)borate Na[BPZ4]} (Pz=1-pyrazolyl) to give the corresponding new (3-oxo-1-cyclohexenyl)palladium(II) complexes, [Pd(oxch)Cl(dppe)] (oxch=3-oxo-1-cyclohexenyl) (2), [Pd(oxch)Cl(phen)]
反式氯(3-氧代-1-环己烯基)双(三苯基膦)钯(II)(1)与 1,2-双(二苯基膦)乙烷 (dppe)、1,10-菲咯啉 (phen)、二乙基二硫代氨基甲酸钠反应–水(1/3)和四(1-吡唑基)硼酸钠Na[BPZ4]}(Pz=1-吡唑基)得到相应的新(3-氧代-1-环己烯基)钯(II)配合物,[ Pd(oxch)Cl(dppe)] (oxch=3-oxo-1-cyclohexenyl) (2)、[Pd(oxch)Cl(phen)]、[Pd(oxch)(S2CNEt2)(PPh3)]和[ Pd(oxch)(BPZ4)(PPh3)]。配合物 2 用衍生自甲基和乙基氰基乙酸酯和丙二腈的碳负离子处理,得到了新的二有机钯 (II) 配合物。这些配合物通过元素分析和 IR 和 1H-NMR 光谱表征。讨论了 BPZ4 复合物的立体化学非刚性。
Preparations and fluxional behavior of some tetrakis(1-pyrazolyl)boratopalladium(II) complexes
Na(BPz4) (Pz = 1-pyrazolyl) to yield [PdCl(BPz4)L] [(I) for L = PEt3 and (II) for L = P(OEt)3] and [(BPz4)Pd(BPz4)PdCl2]·12CH2Cl2 (III) for diethyl sulfide. In the 1H-NMR spectra of I and II, fluxionalbehavior of the BPz4 ligand was observed at high temperature leading to spectroscopic equivalence of all four pyrazolyl groups, and was studied in connection with trans-effects of other coexisting ligands