The solid-state linkage isomerization [Co(NH3)5NO2]Br2 double-line arrow pointing left and right [Co(NH3)5ONO]Br2 was studied, at room temperature, using the X-ray powder diffraction technique. The structure of the photochemically synthesized [Co(NH3)5-ONO]Br2 was solved in the orthorbombic space group Cmcm, with a = 10.8011(7) angstrom, b = 8.9692(6) angstrom, c = 10.6090(6) angstrom, and Z = 4, and refined by the Rietveld method, down to R(profile) = 0.119, for 4000 data points collected in the 10-90-degrees (2theta) range. The changes in the lattice parameters and the structural evolution in the course of the ONO double-line arrow pointing right NO2 linkage isomerization showed the intramolecular nature of the isomerization, with the powders remaining a monophase system at any time.

STUDY OF THE LINKAGE ISOMERIZATION [CO(NH3)5NO2]BR2[--][CO(NH3)5ONO]BR2 IN THE SOLID-STATE BY X-RAY-POWDER DIFFRACTION / N. Masciocchi, A. Kolyshev, V. Dulepov, E. Boldyreva, A. Sironi. - In: INORGANIC CHEMISTRY. - ISSN 0020-1669. - 33:12(1994), pp. 2579-2585.

STUDY OF THE LINKAGE ISOMERIZATION [CO(NH3)5NO2]BR2[--][CO(NH3)5ONO]BR2 IN THE SOLID-STATE BY X-RAY-POWDER DIFFRACTION

A. Sironi
Ultimo
1994

Abstract

The solid-state linkage isomerization [Co(NH3)5NO2]Br2 double-line arrow pointing left and right [Co(NH3)5ONO]Br2 was studied, at room temperature, using the X-ray powder diffraction technique. The structure of the photochemically synthesized [Co(NH3)5-ONO]Br2 was solved in the orthorbombic space group Cmcm, with a = 10.8011(7) angstrom, b = 8.9692(6) angstrom, c = 10.6090(6) angstrom, and Z = 4, and refined by the Rietveld method, down to R(profile) = 0.119, for 4000 data points collected in the 10-90-degrees (2theta) range. The changes in the lattice parameters and the structural evolution in the course of the ONO double-line arrow pointing right NO2 linkage isomerization showed the intramolecular nature of the isomerization, with the powders remaining a monophase system at any time.
CRYSTALS DICHLORIDE REFINEMENT COMPLEXES NITRITE
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/188687
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