Volume 111, Issue 9 pp. 1879-1884
Theoretical and Computational Developments

On experimental versus theoretically calculated properties of thiadiazole derivatives

Enrique Julio Vasini

Corresponding Author

Enrique Julio Vasini

Facultad de Ciencias Exactas, Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, CCT La Plata-CONICET), Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, La Plata 1900, Argentina

Facultad de Ciencias Exactas, Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, CCT La Plata-CONICET), Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, La Plata 1900, ArgentinaSearch for more papers by this author
María Virginia Mirífico

María Virginia Mirífico

Facultad de Ciencias Exactas, Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, CCT La Plata-CONICET), Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, La Plata 1900, Argentina

Facultad de Ingeniería, Área Departamental Ingeniería Química, Universidad Nacional de La Plata, Calle 47 y 1, La Plata 1900, Argentina

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José Alberto Caram

José Alberto Caram

Facultad de Ciencias Exactas, Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, CCT La Plata-CONICET), Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4, La Plata 1900, Argentina

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First published: 21 April 2011
Citations: 2

Abstract

The recently published results of a theoretical calculation of the physicochemical properties of acenaphtho[1,2-c]- and phenanthro[9,10-c]-1,2,5-thiadiazole 1,1-dioxide, using a modified density functional theory (CHIH-DFT), are compared with our experimental results. The CHIH-DFT-calculated IR spectra of both compounds are also compared with those obtained using relatively simple RHF calculations. It is concluded that, in these cases, the improvements claimed for the new model chemistry are marginal. The IR spectra of three new derivatives of 1,2,5-thiadiazole are also reported and calculated. © 2010 Wiley Periodicals, Inc. Int J Quantum Chem, 2011

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