Polyfluorinated Pd(II)-3,5-di-tert-butylsalicylaldimenes complexes: Synthesis, structure, spectroscopy, redox behaviors and catalytic activity

Kasumov V. T., ŞAHİN E.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.107, ss.31-38, 2013 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 107
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.saa.2013.01.015
  • Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.31-38
  • Anahtar Kelimeler: Bis[(N-3,5-di-(t)busalicylidene)-polyfluorophenyl]Pd, X-ray structure, Redox reactivity, Pd-11-phenoxyl radicals, PALLADIUM SALICYLALDIMINE COMPLEXES, LIVING PROPYLENE POLYMERIZATION, IMINE CHELATE LIGANDS, OLEFIN POLYMERIZATION, TITANIUM COMPLEXES, FI CATALYSTS, RADICAL COMPLEXES, GALACTOSE-OXIDASE, METAL-COMPLEXES, CHEMISTRY
  • Atatürk Üniversitesi Adresli: Evet

Özet

A series of new polyfluorinated palladium(II) complexes (7-12) of N-polyfluoropheny1-3,5-di-tert-butylsalicylaldimines (1-6) have been synthesized. They were characterized by analytical, spectroscopic (UV/Vis, IR, H-1 NMR, and ESR), electrochemical methods and their chemical oxidation and hydrogenation catalytic activity were studied. The X-ray crystal structure analysis of bis[N-(3,5-di-tert-butylsalicylidene)-F5Ph]Pd(II) (12) revealed a slightly distorted square-planar trans-PdN2O2 geometry around the palladium center. The UV/Vis and EPR results indicate that chemical oxidation of 7-10 by Ce(IV) in CHCl3 generates relatively stable Pd(II)-phenoxyl radical complexes (g = 2.0044-2.0062). The results of chemical and electrochemical oxidation of 1-12, as well as the catalytic activity of 7-10 complexes in the hydrogenation of PhNO2 were presented. (c) 2013 Elsevier B.V. All rights reserved.