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Hydrogen Peroxide Insular Dodecameric and Pentameric Clusters in Peroxosolvate Structures
Author(s) -
Grishanov Dmitry A.,
Navasardyan Mger A.,
Medvedev Alexander G.,
Lev Ovadia,
Prikhodchenko Petr V.,
Churakov Andrei V.
Publication year - 2017
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/anie.201709699
Subject(s) - hydrogen peroxide , hydrogen bond , chemistry , molecule , crystallography , crystal structure , cluster (spacecraft) , peroxide , stereochemistry , organic chemistry , computer science , programming language
Peroxosolvates of 2‐aminonicotinic acid ( I ) and lidocaine N ‐oxide ( II ) including the largest insular hydrogen peroxide clusters were isolated and their crystal structures were determined by single‐crystal X‐ray diffraction. An unprecedented dodecameric hydrogen peroxide insular cluster was found in I . An unusual cross‐like pentameric cluster was observed in the structure of II . The topology of the (H 2 O 2 ) 12 assembly was never observed for small‐molecule clusters. In I and II new double and triple cross‐orientational disorders of H 2 O 2 were found. Cluster II is the first example of a peroxosolvate crystal structure containing H 2 O 2 molecules with a homoleptic hydrogen peroxide environment. In II , a hydrogen bond between an H 2 O 2 molecule and a peptide group ‐CONH⋅⋅⋅O 2 H 2 was observed for the first time.