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Back Cover: C(sp 2 )‐Coupled Nitronyl Nitroxide and Iminonitroxide Diradicals (Chem. Eur. J. 10/2014)
Author(s) -
Tolstikov Svyatoslav,
Tretyakov Evgeny,
Fokin Sergey,
Suturina Elizaveta,
Romanenko Galina,
Bogomyakov Artem,
Stass Dmitri,
Maryasov Alexander,
Fedin Matvey,
Gritsan Nina,
Ovcharenko Victor
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201490041
Subject(s) - heteroatom , nitroxide mediated radical polymerization , diradical , cover (algebra) , singlet state , chemistry , crystallography , molecular orbital , degenerate energy levels , radical , disjoint sets , stereochemistry , molecule , physics , polymer , atomic physics , ring (chemistry) , quantum mechanics , excited state , combinatorics , organic chemistry , monomer , mechanical engineering , mathematics , radical polymerization , engineering
Nitronyl and imino nitroxide diradicals, being stable heteroatom analogues of the 1,1,2,3,3‐pentamethylenepropane, have been synthesized and investigated. Despite the very close proximity of two radical moieties, the diradicals have almost degenerate singlet and triplet states ( J/k =−7.4 and −6.0 K). The main reason for this is the disjoint nature of their nonbonding molecular orbitals. For more details see the Full Paper by N. Gritsan, V. Ovcharenko et al. on page 2793 ff.