Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6

Maria Besora; Feliu Maseras; John E. McGrady; Pascal Oulié; Duy Hai Dinh; Carine Duhayon; Michel Etienne

doi:10.1039/b516393e

Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6

Maria Besora, Feliu Maseras, John E. McGrady, Pascal Oulié, Duy Hai Dinh, Carine Duhayon, Michel Etienne

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

Abstract

The synthesis and characterisation of the cyclobutyl complex TpMe2NbCl(c-C4H7)(MeC≡.tbd;CMe) completes the family of cycloalkyl complexes TpMe2NbCl(c-CnH2n − 1), n = 3–6. The properties of the cyclobutyl complex are qualitatively similar to those of its cyclopentyl and cyclohexyl analogues, and dramatically different from those of the cyclopropyl derivative. Most conspicuously, the cyclobutyl system has an α-C–H agostic interaction in the dominant isomer, with no evidence for the α-C–C agostic character found for the smaller ring. C–C agostic character therefore seems to be unique to the cyclopropyl complex, where the acute C–C–C angles destabilise the C–C bonding orbitals. © 2006 The Royal Society of Chemistry.

Original language	English
Pages (from-to)	2362-2367
Journal	Journal of the Chemical Society. Dalton Transactions
Issue number	19
DOIs	https://doi.org/10.1039/b516393e
Publication status	Published - 11 May 2006

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Besora, M., Maseras, F., McGrady, J. E., Oulié, P., Dinh, D. H., Duhayon, C., & Etienne, M. (2006). Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6. Journal of the Chemical Society. Dalton Transactions, (19), 2362-2367. https://doi.org/10.1039/b516393e

Besora, Maria ; Maseras, Feliu ; McGrady, John E. ; Oulié, Pascal ; Dinh, Duy Hai ; Duhayon, Carine ; Etienne, Michel. / Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6. In: Journal of the Chemical Society. Dalton Transactions. 2006 ; No. 19. pp. 2362-2367.

@article{2809820e6ed541c8a84ea9a960f3cdba,

title = "Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-CnH2n − 1)(MeC≡.tbd;CMe), n = 3–6",

abstract = "The synthesis and characterisation of the cyclobutyl complex TpMe2NbCl(c-C4H7)(MeC≡.tbd;CMe) completes the family of cycloalkyl complexes TpMe2NbCl(c-CnH2n − 1), n = 3–6. The properties of the cyclobutyl complex are qualitatively similar to those of its cyclopentyl and cyclohexyl analogues, and dramatically different from those of the cyclopropyl derivative. Most conspicuously, the cyclobutyl system has an α-C–H agostic interaction in the dominant isomer, with no evidence for the α-C–C agostic character found for the smaller ring. C–C agostic character therefore seems to be unique to the cyclopropyl complex, where the acute C–C–C angles destabilise the C–C bonding orbitals. {\textcopyright} 2006 The Royal Society of Chemistry.",

author = "Maria Besora and Feliu Maseras and McGrady, {John E.} and Pascal Ouli{\'e} and Dinh, {Duy Hai} and Carine Duhayon and Michel Etienne",

year = "2006",

month = may,

day = "11",

doi = "10.1039/b516393e",

language = "English",

pages = "2362--2367",

number = "19",

}

Besora, M, Maseras, F, McGrady, JE, Oulié, P, Dinh, DH, Duhayon, C & Etienne, M 2006, 'Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6', Journal of the Chemical Society. Dalton Transactions, no. 19, pp. 2362-2367. https://doi.org/10.1039/b516393e

Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6. / Besora, Maria; Maseras, Feliu; McGrady, John E.; Oulié, Pascal; Dinh, Duy Hai; Duhayon, Carine; Etienne, Michel.

In: Journal of the Chemical Society. Dalton Transactions, No. 19, 11.05.2006, p. 2362-2367.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-CnH2n − 1)(MeC≡.tbd;CMe), n = 3–6

AU - Besora, Maria

AU - Maseras, Feliu

AU - McGrady, John E.

AU - Oulié, Pascal

AU - Dinh, Duy Hai

AU - Duhayon, Carine

AU - Etienne, Michel

PY - 2006/5/11

Y1 - 2006/5/11

N2 - The synthesis and characterisation of the cyclobutyl complex TpMe2NbCl(c-C4H7)(MeC≡.tbd;CMe) completes the family of cycloalkyl complexes TpMe2NbCl(c-CnH2n − 1), n = 3–6. The properties of the cyclobutyl complex are qualitatively similar to those of its cyclopentyl and cyclohexyl analogues, and dramatically different from those of the cyclopropyl derivative. Most conspicuously, the cyclobutyl system has an α-C–H agostic interaction in the dominant isomer, with no evidence for the α-C–C agostic character found for the smaller ring. C–C agostic character therefore seems to be unique to the cyclopropyl complex, where the acute C–C–C angles destabilise the C–C bonding orbitals. © 2006 The Royal Society of Chemistry.

AB - The synthesis and characterisation of the cyclobutyl complex TpMe2NbCl(c-C4H7)(MeC≡.tbd;CMe) completes the family of cycloalkyl complexes TpMe2NbCl(c-CnH2n − 1), n = 3–6. The properties of the cyclobutyl complex are qualitatively similar to those of its cyclopentyl and cyclohexyl analogues, and dramatically different from those of the cyclopropyl derivative. Most conspicuously, the cyclobutyl system has an α-C–H agostic interaction in the dominant isomer, with no evidence for the α-C–C agostic character found for the smaller ring. C–C agostic character therefore seems to be unique to the cyclopropyl complex, where the acute C–C–C angles destabilise the C–C bonding orbitals. © 2006 The Royal Society of Chemistry.

U2 - 10.1039/b516393e

DO - 10.1039/b516393e

M3 - Article

SP - 2362

EP - 2367

IS - 19

ER -

Besora M, Maseras F, McGrady JE, Oulié P, Dinh DH, Duhayon C et al. Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series TpMe2NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6. Journal of the Chemical Society. Dalton Transactions. 2006 May 11;(19):2362-2367. https://doi.org/10.1039/b516393e

Structure and bonding in a cyclobutyl tris(pyrazolyl)boratoniobium complex and the variation in agostic behaviour with ring size in the series Tp<sup>Me2</sup>NbCl(c-C<inf>n</inf>H<inf>2n − 1</inf>)(MeC≡.tbd;CMe), n = 3–6

Abstract

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