African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007
  • Published Articles: 357

Full Length Research Paper

“Photochemical synthesis and spectroscopic studies of 3, 5-alkyl/aryl substituted-tetrahydro-2H-1,3,5-thiadiazine-2-thione and their complexes with M(CO)4(η2:2- NBD) [M = Cr, Mo and W] as M(CO)4 transfer reagent”

Ayodhya Singh1*, Munesh Kumar1, Manish Kaushik2, Anjali Singh2 and Seema Singh3
1Department of Chemistry, M. M. H. College, Ghaziabad, U. P., India 201001, India. 2Department of Chemistry, D. P. B. S. College, Anoopshahr, Bulandshahr, U. P., India 203001, India. 3Department of Chemistry, Kishan P. G. College, Bahraich, U. P. 271801, India, India.
Email: [email protected]

  •  Accepted: 09 June 2011
  •  Published: 10 October 2011

Abstract

Fifteen new complexes, [M(CO)4(L)2] [M=Cr;  Mo; W]; [L= met-DTTT; et-DTTT; n-pr-DTTT; ph-DTTT and benz-DTTT] have been synthesized by the photochemical exchange reaction of [(η2:2- NBD)M(CO)4] (M= Cr, Mo and W) with 3,5-dimethyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (met-DTTT),  3,5-diethyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (eth-DTTT), 3,5-di-n-propyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (n-pr-DTTT), 3,5-diphenyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (ph-DTTT),  and 3,5-dibenzyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (benz-DTTT). The new complexes have been characterized by elemental analysis, FTIR, 1H NMR spectroscopy. The spectroscopic studies show that DTTT behaves as a monodentate ligand coordinating via the sulfur (C=S) donor atom.

 

Key words: Metal carbonyl, 3,5-dimethyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione, exchange reactions.