Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Chelate effect : The importance of reorganization energy. / Davydova, E. I.; Sevastianova, T. N.; Timoshkin, A. Y.; Suvorov, A. V.; Frenking, G.
в: International Journal of Quantum Chemistry, Том 100, № 4 SPEC. ISS., 15.11.2004, стр. 419-425.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Chelate effect
T2 - The importance of reorganization energy
AU - Davydova, E. I.
AU - Sevastianova, T. N.
AU - Timoshkin, A. Y.
AU - Suvorov, A. V.
AU - Frenking, G.
PY - 2004/11/15
Y1 - 2004/11/15
N2 - The chelate effect has been theoretically studied at the Becke's three-parameter exchange functional and the gradient-corrected functional of Lee, Yang, and Paar/double-ζ polarization level of theory. The influence of ligand, metal, and halogen nature on the chelate effect was analyzed for complexes of group 14 element tetrahalides with monodentate and bidentate nitrogen-containing donors. It is shown that the large reorganization energy of the 2,2′-bipyridine ligand (≈32 kJ mol-1) shadows the chelate effect. The same conclusion holds for other ligands, which undergo significant reorganization upon complex formation. 1,10-Phenanthroline does not have such a large reorganization energy, and its complexes are therefore more stable in the gas phase than are complexes with bipyridine.
AB - The chelate effect has been theoretically studied at the Becke's three-parameter exchange functional and the gradient-corrected functional of Lee, Yang, and Paar/double-ζ polarization level of theory. The influence of ligand, metal, and halogen nature on the chelate effect was analyzed for complexes of group 14 element tetrahalides with monodentate and bidentate nitrogen-containing donors. It is shown that the large reorganization energy of the 2,2′-bipyridine ligand (≈32 kJ mol-1) shadows the chelate effect. The same conclusion holds for other ligands, which undergo significant reorganization upon complex formation. 1,10-Phenanthroline does not have such a large reorganization energy, and its complexes are therefore more stable in the gas phase than are complexes with bipyridine.
KW - Bidentate ligands
KW - Chelate effect
KW - Germanium and tin tetrahalides
KW - Reorganization energy
KW - Silicon
UR - http://www.scopus.com/inward/record.url?scp=7544239866&partnerID=8YFLogxK
U2 - 10.1002/qua.20094
DO - 10.1002/qua.20094
M3 - Article
VL - 100
SP - 419
EP - 425
JO - International Journal of Quantum Chemistry
JF - International Journal of Quantum Chemistry
SN - 0020-7608
IS - 4 SPEC. ISS.
ER -
ID: 5038862