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Title: Synthesis and characterization of tungsten carbonyl complexes containing thioamides
Authors: Miah, Abdur R
Sarker, Jagodish C
Rajbangshi, Subas
Kabir, Shariff E
Ghosh, Shishir
Siddiquee, Tasneem A
Keywords: Organometallic chemistry;Tungsten;Carbonyls;Thioamides;Heterocyclic thiones;X-ray structures
Issue Date: Mar-2014
Publisher: NISCAIR-CSIR, India
Abstract: Tungsten pentacarbonyl complexes are isolated from the reactions between [W(CO)5(NCMe)] and thioamides, the former being generated in situ upon addition of  equimolar amount of Me3NO into an acetonitrile solution of W(CO)6. Room temperature reactions between [W(CO)5(NCMe)] and acyclic thioamides such as thioacetamide and benzamide afford [W(CO)51-(S)-RCSNH2}] in which the thioamides are coordinated to tungsten through sulfur. Similar S-coordinated complexes, namely, [W(CO)51-(S)-thiolactam}] are also isolated from the reactions with cyclic thioamides or thiolactams under the same reaction conditions. All the new complexes have been adequately characterized by spectroscopic data together with single crystal X-ray diffraction studies for four complexes.
Page(s): 274-280
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.53A(03) [March 2014]

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