Photochemical reactions of group VIB metal carbonyls with heterocyclic Schiff bases derived from 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole

Senery S., ERCAG A., SENTUERK O. S., PERPELEKZ E., Sinany F. U.

JOURNAL OF COORDINATION CHEMISTRY, vol.61, no.5, pp.740-749, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 5
  • Publication Date: 2008
  • Doi Number: 10.1080/00958970701384469
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.740-749
  • Istanbul Technical University Affiliated: Yes


The new complexes, M(CO)(5)(Schiff base) [M = Cr; 1, Mo; 2, W; 3, Schiff base = 4-salicylidenamino-3-hydrazino-5-mercapto-1,2,4-triazole, SAHMT, a; 4-(2-hydroxynaphthylidenamino)-3-hydrazino-5-mercapto-1,2,4-triazole, 2HNAHMT, b; 4-(3-hydroxybenzylidenamino)-3-hydrazino-5-mercapto-1,2,4- triazole, 3HBAHMT, c; 4-(4-hydroxybenzylidenamino)-3-hydrazino-5-mercapto-1,2,4- triazole, 4HBAHMT, d; 4-(5-bromosalicylidenamino)-3-hydrazino-5-mercapto-1,2,4-triazole, 5BrSAHMT, e; were synthesized by photochemical reaction of metal carbonyls M(CO)(6) (M = Cr, Mo, W) with new heterocyclic Schiff bases derived from 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole, a-e. The ligands and complexes have been characterized by elemental analysis, EI-mass spectrometry, FT-IR, H-1 and C-13-{H-1}-NMR spectroscopy. The spectroscopic studies show that Schiff bases, a-e, are monodentate and coordinate via azomethine N donor to the central metal atom in M(CO)(5)(Schiff base) (M = Cr, Mo, W).