Browsing by Author "M. Nethaji"

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4-[2-(1-Acetyl-2-oxopropyl-idene)-hydrazino]-N-(pyrimidin-2-yl) benzene-sulfonamide
(2009) Priyanka Rai; Shalini Upadhyay; M. Nethaji; K.K. Upadhyay
In the title compound, C15H15N5O 4S, the dihedral angle between the pyrimidine and benzene rings is 84.56 (2)°. Intra-molecular hydrazine-carbonyl N - H⋯O and inter-molecular sulfonamide-pyridimine N - H⋯N hydrogen bonds stabilize the mol-ecular and crystal structures, respectively.
A new reaction of dithiocarbamates: CS2 elimination and two C-C bond formations leading to formation of cyclic ammonium salts
(2008) Jyotsna Chaturvedi; Subrato Bhattacharya; M. Nethaji
Sodium salts of N,N-dibenzyldithiocarbamate, N,N-diisopropyldithiocarbamate and pyrrolidine-1-carbodithioate gave cyclic products, 4-oxo-2,6-diphenyl-piperidinium, 2,2,6,6-tetramethyl-4-oxo-piperidinium and 3-oxo-8-azonia-bicyclo[3.2.1]octane cations, respectively, when treated with aluminum trichloride in acetone. The 2,2,6,6-tetramethyl-4-oxo-piperidinium thiocyanate salt has been characterized by X-ray crystallography. A plausible mechanism has also been suggested on the basis of preliminary DFT calculations. © 2008 Elsevier B.V. All rights reserved.
Ethyl 3-oxo-2-[(4-sulfamoylphen-yl)hydra-zono]butyrate
(2009) K.K. Upadhyay; Priyanka Rai; Shalini Upadhyay; M. Nethaji
In the title compound, C12H15N3O5S, an intra-molecular N- H⋯O hydrogen bond between the hydrazine unit and one of the carbonyl groups may influence the mol-ecular conformation. In the crystal structure, inter-molecular N- H⋯O hydrogen bonds, including one which is bifurcated, link the mol-ecules into a two-dimensional network.
Synthesis of a one-dimensional coordination polymer containing pendant hydrosulfide groups
(2009) Jyotsna Chaturvedi; Subrato Bhattacharya; M. Nethaji
In view of the recent interest in compounds containing M-SH units, an organotin hydrosulfide compound, Me2Sn(SH)(O2CMe) (1) was prepared by controlled hydrolysis of the diorganotin thioacetate. Under similar mild hydrolytic conditions the corresponding benzoate could not be isolated. Instead, the thiobenzoate complex, Me2Sn(SOCPh)2 (3) was obtained in excellent yields indicating that there was no hydrolysis. Both 1 and 3 were characterized by X-ray crystallography. Some properties of the polymeric compound 1, such as spectral, electrical conductivity and NLO response were also studied. The reactivity and properties were explained using density functional calculations. © 2009 The Royal Society of Chemistry.