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MAIK Nauka/Interperiodica, Russian Journal of Physical Chemistry A, Focus on Chemistry, 5(86), p. 816-824

DOI: 10.1134/s0036024412050330

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Mass spectrometric study of the vaporization of N,N'-o-phenylene-bis(salicylideniminate) nickel(II), copper(II), and zinc(II) and N,N'-ethylene-bis(salicylaldiminate) zinc(II) complexes

Journal article published in 2012 by N. V. Tverdova, Yu A. Zhabanov, E. D. Pelevina, A. V. Krasnov, Y.-U. A. Zhabanov, G. V. Girichev ORCID, N. P. Kuzmina ORCID, O. V. Kotova
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This paper is available in a repository.

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Abstract

The thermodn. of vaporization of Ni(saloph), Cu(saloph), Zn(saloph), and Zn(salen) complexes are studied by Knudsen effusion method with mass spectrometric control of the vapor compn. It is noted that in the mass spectra of Zn(saloph) and Zn(salen), there are low-intensity peaks corresponding to ions of dimer. The effect of the nature of a metal and a ligand on the behavior of fragmentation of the complexes during their ionization with electrons is discussed. The enthalpies of sublimation, ΔH (T), are calcd. by second law of thermodn.: Ni(saloph) (502-578 K), 163 ± 1 kJ/mol; Cu(saloph) (475-550 K), 162 ± 1 kJ/mol; Zn(saloph) (571-637 K), 176 ± 4 kJ/mol; Zn(salen) (568-634 K), 169 ± 2 kJ/mol. [on SciFinder(R)]