Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Electrophilicity of aliphatic nitrilium closo-decaborate clusters : Hyperconjugation provides an unexpected inverse reactivity order. / Burianova, Valeria K.; Mikherdov, Alexander S.; Bolotin, Dmitrii S.; Novikov, Alexander S.; Mokolokolo, Pennie Petrus; Roodt, Andreas; Boyarskiy, Vadim P.; Suslonov, Vitalii V.; Zhdanov, Andrey P.; Zhizhin, Konstantin Yu; Kuznetsov, Nikolay T.
в: Journal of Organometallic Chemistry, Том 870, № 870, 01.09.2018, стр. 97-103.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Electrophilicity of aliphatic nitrilium closo-decaborate clusters
T2 - Hyperconjugation provides an unexpected inverse reactivity order
AU - Burianova, Valeria K.
AU - Mikherdov, Alexander S.
AU - Bolotin, Dmitrii S.
AU - Novikov, Alexander S.
AU - Mokolokolo, Pennie Petrus
AU - Roodt, Andreas
AU - Boyarskiy, Vadim P.
AU - Suslonov, Vitalii V.
AU - Zhdanov, Andrey P.
AU - Zhizhin, Konstantin Yu
AU - Kuznetsov, Nikolay T.
N1 - Publisher Copyright: © 2018 Elsevier B.V.
PY - 2018/9/1
Y1 - 2018/9/1
N2 - The nucleophilic addition of 2-pyridyl carbamidoxime to the C≡N group of the aliphatic nitrilium closo-decaborate clusters (PhCH2PPh3)[B10H9NCR] (R = Me, Et, and iPr) proceeds to give 2-iminium closo-decaborates (68–88% isolated yields). A systematic kinetic and theoretical study of the nucleophilic addition indicates that the reactivity of the nitrile ligand at the boron cluster unexpectedly increases in the order of R: Me < Et < iPr. It was shown theoretically, that the electrophilicity of the C≡N group is primarily determined by hyperconjugation with the neighboring aliphatic moiety, which induced by substantial (ca. +0.6 e) positive charge at the nitrile C atom.
AB - The nucleophilic addition of 2-pyridyl carbamidoxime to the C≡N group of the aliphatic nitrilium closo-decaborate clusters (PhCH2PPh3)[B10H9NCR] (R = Me, Et, and iPr) proceeds to give 2-iminium closo-decaborates (68–88% isolated yields). A systematic kinetic and theoretical study of the nucleophilic addition indicates that the reactivity of the nitrile ligand at the boron cluster unexpectedly increases in the order of R: Me < Et < iPr. It was shown theoretically, that the electrophilicity of the C≡N group is primarily determined by hyperconjugation with the neighboring aliphatic moiety, which induced by substantial (ca. +0.6 e) positive charge at the nitrile C atom.
KW - Amidoxime
KW - Hyperconjugation
KW - Nitrilium salts
KW - Nucleophilic addition
KW - Oxime
UR - http://www.scopus.com/inward/record.url?scp=85049118124&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/electrophilicity-aliphatic-nitrilium-closodecaborate-clusters-hyperconjugation-provides-unexpected-i
U2 - 10.1016/j.jorganchem.2018.06.017
DO - 10.1016/j.jorganchem.2018.06.017
M3 - Article
AN - SCOPUS:85049118124
VL - 870
SP - 97
EP - 103
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
IS - 870
ER -
ID: 28294305