Intramolecular C-H center dot center dot center dot pi interactions in metal-porphyrin complexes
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Cambridge Structural Database (CSD) was screened in order to find intramolecular C-H...pi interactions with a chelate ring of coordinated porphyrin. It was found 154 crystal structures with 244 intramolecular C-H...pi interactions in transition metal complexes with derivatives of porphyrin. Comparison of interacting distances indicates that interactions of hydrogen atoms in positions 2 and 6 of axially coordinated pyridine are more favorable with ruffled than with planar porphyrin.
Keywords:
C-H center dot center dot center dot pi interactions / transition metal complexes / chelate ring / porphyrin / axial ligandsSource:
International Journal of Molecular Sciences, 2004, 5, 174-185Note:
- Workshop on Modeling Interaction in Biomolecules, Sep 15-20, 2003, Nove Hrady, Czech Republic
DOI: 10.3390/i5040174
ISSN: 1422-0067
WoS: 000225772800005
Scopus: 2-s2.0-19744364416
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