Photochemical reactions of [M(CO)(5)THF] (M : Cr, Mo and W) with tetradentate Schiff-bases


Karahan S., Koese P., SUBAŞI E., Temel H.

SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY, vol.38, no.5, pp.422-427, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 5
  • Publication Date: 2008
  • Doi Number: 10.1080/15533170802254503
  • Title of Journal : SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY
  • Page Numbers: pp.422-427
  • Keywords: N, N '-bis(2-hydroxynaphtalin-1-carbaldehydene)-1, 2-bis(p-aminophenoxy)ethane, N, N '-bis(2-hydroxynaphtalin-1-carbaldehydene)-1, 4-bis(p-aminophenoxy)butane, metal carbonyls, Schiff base, ZN(II) COMPLEXES, PR-N, RE(CO)(5)BR, COPPER(II), MANGANESE(III), PHOTOCHROMISM, SPECTROSCOPY, COBALT(II), ZINC(II), CU(II)

Abstract

The new complexes, [(mu-CO)(2)Cr-2(eta(4)-H2L)(2)], 1; [(mu-CO)M-2(CO)(2)(eta(4)- H2L)(2)], [M=Mo; 2, W; 3]; [(mu-CO)(2)Cr-2(eta(4)-H2L')(2)], 4 and [(mu-CO)M-2(CO)(2)(eta(4)-H2L')(2)], [M=Mo; 5, W; 6] have been synthesized by the photochemical reactions of photogenerated intermediate, M(CO)(5)THF (M=Cr, Mo, W) with two oxygen and nitrogen donor Schiff base ligands, N,N'-bis(2-hydroxynaphtalin-1-carbaldehydene)-1,2-bis(p-aminophenoxy)ethane (H2L) and N,N'-bis(2-hydroxynaphtalin-1-carbaldehydene)-1,4-bis(p-aminophenoxy)butane (H2L'). The complexes have been characterized by elemental analyses, LC-mass spectrometry, magnetic studies, FTIR and H-1-NMR spectroscopy. The spectroscopic studies show that H2L and H2L' ligands are coordinated to the central metal as tetradentate ligands coordinating via their imine N and O donor atoms in (1-6).