Synthesis and characterization of some olefin/phosphine-tert-amine N-oxide platinum(II) complexes

• Published in: Inorganica Chimica Acta Vol. 133; no. 1; pp. 47 - 50
• Main Authors: L-Allaf, Talal A.K., Khuthier, Abdul-Hussain, Abdul-Gani, Hatham J.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.10.1987; Elsevier Science
• Subjects: Chemistry; Coordination compounds; Exact sciences and technology; Inorganic chemistry and origins of life; Preparations and properties; Divalent metal Complexes; Hydrocarbon; Tertiary phosphine; Nitrogen heterocycle; Organic ligand; Transition metal Complexes; Acido complex; Complexes Mixed; Six membered ring; Preparation; Chloro complex; Platinoid Complexes; Infrared spectrum; NMR spectrum; Oxygen nitrogen heterocycle; Platinum II Complexes
• ISSN: 0020-1693; 1873-3255
• DOI: 10.1016/S0020-1693(00)84370-4

Eighteen olefin (or tert-phosphine)-tert-amine N-oxide platinum(II) complexes of the general formula trans-[PtL(tert-amine N-oxide)Cl 2] have been prepared, where L is ethylene, styrene, or triethylphosphine. The tert-amine N-oxides used in the complexation were of the N-aryl saturated heterocyclic type substituted at the ortho- or para-position with an electron withdrawal group, i.e. NO 2, CN, COCH 3, COC 6H 5, and COOC 2H 5. The complexes were characterized by elemental analysis, IR, and 1H NMR spectroscopy. Linear relationships were obtained between the stretching frequencies of the NO bonds of the platinum complexes and Hammet constants, viz. σ and σ , which indicate the presence of inductive and field effects for the para-substitution.