5,10,15,20-Tetrakis(1-methylpyridinium-4-yl)porphyrin tetraiodide tetrahydrate
authors Lourenco, LMO; Fernandes, JA; Neves, MGPMS; Cavaleiro, JAS; Tome, JPC; Paz, FAA
nationality International
journal ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE
keywords GRAM-POSITIVE BACTERIA; ANTIBACTERIAL ACTIVITY; CATIONIC PORPHYRINS; TRIMESIC ACID; PHOTOSENSITIZERS
abstract The asymmetric unit of the title compound, C(44)H(38)N(82)(+) center dot- 4I center dot 4H(2)O, comprises two halves of non-equivalent cations of 5,10,15,20-tetrakis(1-methylpyridinium) porphyrin (with the full molecule of each completed by the application of inversion symmetry), four charge balancing iodide anions and four water molecules of crystallization (two water molecules are fully occupied and four molecules have a site occupancy of 50%). The porphyrin cations are arranged into supramolecular columns parallel to the b axis, mediated by pi-pi [centroid-centroid distance = 3.762 (4) angstrom] and C-H center dot center dot center dot pi supramolecular interactions [C center dot center dot center dot centroid distance = 3.522 (7) angstrom, C-H center dot center dot center dot centroid = 128 degrees], leading to the formation of columns parallel to the b axis. The close packing leads to the presence of a one-dimensional channel filled with partially occupied water molecules engaged in O-H center dot center dot center dot O and O-H center dot center dot center dot I hydrogen bonds
publisher WILEY-BLACKWELL
issn 1600-5368
year published 2011
volume 67
beginning page O3157
ending page U827
digital object identifier (doi) 10.1107/S1600536811043844
web of science category Crystallography
subject category Crystallography
unique article identifier WOS:000298795500064
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