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Generation and Stabilization of D 6h and C 2v Valence Tautomeric Structures of the Rhodizonate Dianion in Hydrogen‐Bonded Host Lattices
Author(s) -
Lam ChiKeung,
Mak Thomas C. W.
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010917)40:18<3453::aid-anie3453>3.0.co;2-u
Subject(s) - tautomer , valence (chemistry) , chemistry , hydrogen bond , crystallography , hydrogen , stereochemistry , molecule , organic chemistry
The nonbenzenoid aromatic D 6h and enediolate C 2v valence tautomers of the relatively unstable rhodizonate dianion (see picture) have been generated in situ and stabilized by hydrogen bonding with (3‐hydroxyphenyl)urea and 1,1′‐ethylenediurea, respectively, in two novel crystalline inclusion compounds.