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- Title
meso-Tetrathienylporphyrins: Steady-state emission and structural properties.
- Authors
Bhyrappa, P.; Sankar, M.; Varghese, B.; Bhavana, P.
- Abstract
meso-Tetra (2′- and 3′-thienyl)porphyrins and their Zn(II)--complexes were examined by steady-state fluorescence measurements. These molecules exhibit significant bathochromic shift in their emission bands with decreased quantum yields relative to their corresponding meso-tetraphenylporphyrin derivatives. The crystal structure of 5,10,15,20-tetrakis(3′-thienyl)porphinato zinc(II) shows planar and nonplanar stereochemical features of the macrocycle. One of the macrocycle shows nearly planar while the other exhibited predominantly saddle-shaped geometry. The extent of displacement of the β-pyrrole carbons in the nonplanar (saddle) conformation is as high as ± 0.422 Å.
- Subjects
PORPHYRINS; MACROCYCLIC compounds; BIOLOGICAL pigments; ZINC; CRYSTALLOGRAPHY
- Publication
Journal of Chemical Sciences, 2006, Vol 118, Issue 5, p393
- ISSN
0974-3626
- Publication type
Article
- DOI
10.1007/BF02711449