Hydrotris(methimazolyl)borato alkylidyne complexes of tungsten

Mark R. Mark; Anthony F. Hill; Andrew J.P. White; David J. Williams

doi:10.1021/om030288b

Hydrotris(methimazolyl)borato alkylidyne complexes of tungsten

Mark R. Mark, Anthony F. Hill^*, Andrew J.P. White, David J. Williams

^*Corresponding author for this work

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

76 Citations (Scopus)

Abstract

The syntheses of the alkylidyne complexes [W(≡CR)(CO)₂{HB(mt)₃}] (R = NⁱPr₂ 1a, C₄H₃S-2 1b, C≡CCMe₃ 1c, C₆H₄Me-4 1d, C₆H₃Me₂-2,6 1e, C₅H₄Mn(CO)₃ 1f; mt = 2-mercapto-3-methylimidazolyl) are reported. The crystal structures of three examples (1a, 1b, and 1c) reveal a progressive distortion of the alkylidyne ligand from octahedral coordination at tungsten, and in addition have a chiral C₃-symmetric conformation for the B(mt)₃W cage, which is also implicit from solution NMR data. A set of parameters is suggested for describing the geometry of HB(mt)₃M cages.

Original language	English
Pages (from-to)	3831-3840
Number of pages	10
Journal	Organometallics
Volume	22
Issue number	19
DOIs	https://doi.org/10.1021/om030288b
Publication status	Published - 15 Sept 2003

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title = "Hydrotris(methimazolyl)borato alkylidyne complexes of tungsten",

abstract = "The syntheses of the alkylidyne complexes [W(≡CR)(CO)2{HB(mt)3}] (R = NiPr2 1a, C4H3S-2 1b, C≡CCMe3 1c, C6H4Me-4 1d, C6H3Me2-2,6 1e, C5H4Mn(CO)3 1f; mt = 2-mercapto-3-methylimidazolyl) are reported. The crystal structures of three examples (1a, 1b, and 1c) reveal a progressive distortion of the alkylidyne ligand from octahedral coordination at tungsten, and in addition have a chiral C3-symmetric conformation for the B(mt)3W cage, which is also implicit from solution NMR data. A set of parameters is suggested for describing the geometry of HB(mt)3M cages.",

author = "Mark, {Mark R.} and Hill, {Anthony F.} and White, {Andrew J.P.} and Williams, {David J.}",

year = "2003",

month = sep,

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doi = "10.1021/om030288b",

language = "English",

volume = "22",

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journal = "Organometallics",

issn = "0276-7333",

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TY - JOUR

T1 - Hydrotris(methimazolyl)borato alkylidyne complexes of tungsten

AU - Mark, Mark R.

AU - Hill, Anthony F.

AU - White, Andrew J.P.

AU - Williams, David J.

PY - 2003/9/15

Y1 - 2003/9/15

N2 - The syntheses of the alkylidyne complexes [W(≡CR)(CO)2{HB(mt)3}] (R = NiPr2 1a, C4H3S-2 1b, C≡CCMe3 1c, C6H4Me-4 1d, C6H3Me2-2,6 1e, C5H4Mn(CO)3 1f; mt = 2-mercapto-3-methylimidazolyl) are reported. The crystal structures of three examples (1a, 1b, and 1c) reveal a progressive distortion of the alkylidyne ligand from octahedral coordination at tungsten, and in addition have a chiral C3-symmetric conformation for the B(mt)3W cage, which is also implicit from solution NMR data. A set of parameters is suggested for describing the geometry of HB(mt)3M cages.

AB - The syntheses of the alkylidyne complexes [W(≡CR)(CO)2{HB(mt)3}] (R = NiPr2 1a, C4H3S-2 1b, C≡CCMe3 1c, C6H4Me-4 1d, C6H3Me2-2,6 1e, C5H4Mn(CO)3 1f; mt = 2-mercapto-3-methylimidazolyl) are reported. The crystal structures of three examples (1a, 1b, and 1c) reveal a progressive distortion of the alkylidyne ligand from octahedral coordination at tungsten, and in addition have a chiral C3-symmetric conformation for the B(mt)3W cage, which is also implicit from solution NMR data. A set of parameters is suggested for describing the geometry of HB(mt)3M cages.

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U2 - 10.1021/om030288b

DO - 10.1021/om030288b

M3 - Article

SN - 0276-7333

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SP - 3831

EP - 3840

JO - Organometallics

JF - Organometallics

IS - 19

ER -

Hydrotris(methimazolyl)borato alkylidyne complexes of tungsten

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