Chemical peculiarities and structure of 2-(indane-1?, 3?-dionid-2?-yl)pyridinium (?-pyrophthalone)

Autor:	Yu. E. Fridmanis, E. S. Lavrinovich, A. A. Kemme, Ya. Ya. Bleidelis, E. E. Liepin'sh, M. F. Bundule
Rok vydání:	1978
Předmět:	Chemistry Hydrogen bond Organic Chemistry Van der Waals strain Dihedral angle Ring (chemistry) symbols.namesake chemistry.chemical_compound Crystallography Intramolecular force symbols Molecule Pyridinium van der Waals force
Zdroj:	Chemistry of Heterocyclic Compounds. 14:865-869
ISSN:	1573-8353 0009-3122
Popis:	The fine structure of 2-(indane-1′,3′-dionid-2′-yl)pyridinium (α-pyrophthalone) was determined by PMR spectroscopy and x-ray diffraction analysis. The α-pyrophthalone molecule is almost planar; the dihedral angle between the pyridine ring and the indanedione ring is 5°. The structure is stabilized by an intramolecular hydrogen bond with a length of 2.73 A. The molecules are packed in the crystal at van der Waals distances similar to those in molecular self-complexes. The data obtained for α-pyrophthalone confirm a dipolar ion structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1aa8a8e12013438b22f1a022c576f8a6 https://doi.org/10.1007/bf00469864 Zobrazit plný text záznamu Full text from SpringerLink