Thermo-kinetic and spectral studies of niobium(V) complexes with 3-substituted-4-amino-5-mercapto-1, 2, 4-triazole Schiff bases | Zendy

Kalagouda Gudosi | Zendy; Prabhugouda Maravalli | Zendy; T. R. Goudar | Zendy

Open Access

Thermo-kinetic and spectral studies of niobium(V) complexes with 3-substituted-4-amino-5-mercapto-1, 2, 4-triazole Schiff bases

Author(s) -

Kalagouda Gudosi,

Prabhugouda Maravalli,

T. R. Goudar

Publication year - 2005

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0504643g

Subject(s) - chemistry , gibbs free energy , niobium , thermal decomposition , elemental analysis , enthalpy , 1,2,4 triazole , chloroform , infrared spectroscopy , kinetic energy , triazole , inorganic chemistry , metal , thermal analysis , thermal , organic chemistry , thermodynamics , physics , quantum mechanics

Metal complexes of niobium(V) with 3-substituted-4-amino-5-mercap- to-1,2,4-triazole Schiff bases have been synthesized in dry chloroform under a nitrogen atmosphere. They were characterized by elemental analysis, molar conductance, elec- tronic, infrared, 1 H-NMR spectroscopy and thermal studies. Parameters, such as energy of activation (Ea), enthalpy (H # ), entropy (S # ) and Gibbs energy (G # ), were com- puted from the thermal decomposition data. Based on the spectral and thermal studies, a coordination number of seven is proposed.

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