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Crystal and molecular structure of pyrylium salts. IV. Crystal and molecular structure of 2,6‐diphenyl‐4‐(4‐carboxyphenyl)pyrylium perchlorate. Interrelations between structural parameters due to substituent effects
Author(s) -
Krygowski Tadeusz Marek,
Anulewicz Romana,
Pniewska Barbara,
Milart Piotr
Publication year - 1991
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.610040209
Subject(s) - chemistry , perchlorate , substituent , bond length , molecular geometry , crystal structure , crystal (programming language) , crystallography , molecule , computational chemistry , stereochemistry , organic chemistry , ion , computer science , programming language
The crystal and molecular structure of 2,6‐diphenyl‐4‐(4‐carboxyphenyl)pyrylium perchlorate was solved by x‐ray diffraction, yielding structural parameters of high precision (estimated standard deviations for bond length ≤ 0.5 pm, for bond angles ≤ 0.2°). Comparison with other 4‐substituted derivatives of 2,6‐diphenyl‐4(4‐carboxytphenylpyrylium) perchlorate shows regularities in the variations of structural parameters following classical views of substituent effects.