equimolar reaction of V and VI with either PdCl2(cod) (cod = cyclooctadiene) or PdClMe(cod) afforded palladium(II) complexes I–IV. The molecular structure of II was confirmed by X-ray crystallography. The coordination geometry around the palladium atom exhibited distorted square planar geometry at the palladium centre. Complexes I, II, and IV were evaluated as catalysts for Heck coupling reactions of iodobenzene
Synthesis and characterization of palladium(II) and platinum(II) metal complexes with iminophosphine ligands: X-ray crystal structures of platinum(II) complexes and use of palladium(II) complexes as pre-catalysts in Heck and Suzuki cross-coupling reactions
spectrometry (ESI-MS) and elemental analysis. The representative solid-state molecular structures of the platinumcomplexes 1b and 2b were determined using single crystal X-ray diffraction analysis and revealed that the complexes exhibit a slightly distorted square-planar geometry. Furthermore, the palladiumcomplexes were tested as potential catalysts in the Heck and Suzuki cross-coupling reactions.
Neutral palladium(II) complexes with P,N Schiff-base ligands: Synthesis, characterization and catalytic oligomerisation of ethylene
作者:Mokgolela M. Mogorosi、Tebello Mahamo、John R. Moss、Selwyn F. Mapolie、J. Chris Slootweg、Koop Lammertsma、Gregory S. Smith
DOI:10.1016/j.jorganchem.2011.07.042
日期:2011.11
New N-functionalised 2-phosphinobenzaldimino (P boolean AND N) ligands bearing 3-picolyl, furfuryl, thiophene-2-methyl, thiophene-2-ethyl, and benzyl groups have been prepared in good yield. The 2-phosphinobenzaldimino ligands were reacted with PdCl2(COD) to give the corresponding metal complexes of the type Pd(L)Cl-2 (L = 2-phosphinobenzaldimino (P boolean AND N) ligand). All compounds were fully characterized using spectroscopic and analytical techniques, including H-1, C-13, and P-31 NMR and IR spectroscopies, mass spectrometry and elemental analysis. Selected neutral palladium complexes were evaluated as catalyst precursors in ethylene oligomerisation reactions, after activation with a co-catalyst (MMAO, EtAlCl2, or Et2AlCl). (C) 2011 Elsevier B.V. All rights reserved.
Heteroditopic P,N ligands in gold(I) complexes: Synthesis, structure and cytotoxicity
作者:Telisha Traut-Johnstone、Stonard Kanyanda、Frederik H. Kriel、Tanya Viljoen、P.D. Riekert Kotze、Werner E. van Zyl、Judy Coates、D. Jasper G. Rees、Mervin Meyer、Raymond Hewer、D. Bradley G. Williams
DOI:10.1016/j.jinorgbio.2015.01.014
日期:2015.4
marked increase in cytotoxicity upon ligand complexation to gold(I). These findings were supported by results from the 60-cell line fingerprint screen of the Developmental Therapeutics Programme of the National Institutes of Health for two promising compounds. The cytotoxicity of some of these ligands and gold(I)complexes is due to the induction of apoptosis. The ligands and gold(I)complexes demonstrated