Effect of Pnictogen ligand substitution on a tripalladium ditropylium core

Dominic C. Babbini; Frank L. Mulligan; Hannah R. Schulhauser; Tara C. Sweigart; Gary S. Nichol; Stephanie K. Hurst

doi:10.1021/ic100151x

Effect of Pnictogen ligand substitution on a tripalladium ditropylium core

Dominic C. Babbini, Frank L. Mulligan, Hannah R. Schulhauser, Tara C. Sweigart, Gary S. Nichol, Stephanie K. Hurst

Chemistry and Biochemistry

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

25 Scopus citations

Abstract

A combination of multinuclei NMR, UV-vis spectroscopy, and single crystal X-ray diffraction was used to characterize a new series of tripalladium ditropylium sandwich complexes [Pd₃Tr₂(E) ₃][BF₄]₂ (E = PPh₃, AsPh ₃, and SbPh₃ and PEt₃). Ligand substitution leads to a systematic shift of the ¹H and ¹³C NMR tropylium resonances and is correlated with the electron donating properties of the substituent group. Replacement of the ligand increases the palladium-pnictogen bond length in the order P < As < Sb; however, this only slightly alters the internal Pd-Pd bond lengths, supporting the hypothesis that there are only weak Pd-Pd bonding interactions.

Original language	English (US)
Pages (from-to)	4307-4312
Number of pages	6
Journal	Inorganic Chemistry
Volume	49
Issue number	9
DOIs	https://doi.org/10.1021/ic100151x
State	Published - May 3 2010

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic100151x

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title = "Effect of Pnictogen ligand substitution on a tripalladium ditropylium core",

abstract = "A combination of multinuclei NMR, UV-vis spectroscopy, and single crystal X-ray diffraction was used to characterize a new series of tripalladium ditropylium sandwich complexes [Pd3Tr2(E) 3][BF4]2 (E = PPh3, AsPh 3, and SbPh3 and PEt3). Ligand substitution leads to a systematic shift of the 1H and 13C NMR tropylium resonances and is correlated with the electron donating properties of the substituent group. Replacement of the ligand increases the palladium-pnictogen bond length in the order P < As < Sb; however, this only slightly alters the internal Pd-Pd bond lengths, supporting the hypothesis that there are only weak Pd-Pd bonding interactions.",

author = "Babbini, {Dominic C.} and Mulligan, {Frank L.} and Schulhauser, {Hannah R.} and Sweigart, {Tara C.} and Nichol, {Gary S.} and Hurst, {Stephanie K.}",

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doi = "10.1021/ic100151x",

language = "English (US)",

volume = "49",

pages = "4307--4312",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Effect of Pnictogen ligand substitution on a tripalladium ditropylium core

AU - Babbini, Dominic C.

AU - Mulligan, Frank L.

AU - Schulhauser, Hannah R.

AU - Sweigart, Tara C.

AU - Nichol, Gary S.

AU - Hurst, Stephanie K.

PY - 2010/5/3

Y1 - 2010/5/3

N2 - A combination of multinuclei NMR, UV-vis spectroscopy, and single crystal X-ray diffraction was used to characterize a new series of tripalladium ditropylium sandwich complexes [Pd3Tr2(E) 3][BF4]2 (E = PPh3, AsPh 3, and SbPh3 and PEt3). Ligand substitution leads to a systematic shift of the 1H and 13C NMR tropylium resonances and is correlated with the electron donating properties of the substituent group. Replacement of the ligand increases the palladium-pnictogen bond length in the order P < As < Sb; however, this only slightly alters the internal Pd-Pd bond lengths, supporting the hypothesis that there are only weak Pd-Pd bonding interactions.

AB - A combination of multinuclei NMR, UV-vis spectroscopy, and single crystal X-ray diffraction was used to characterize a new series of tripalladium ditropylium sandwich complexes [Pd3Tr2(E) 3][BF4]2 (E = PPh3, AsPh 3, and SbPh3 and PEt3). Ligand substitution leads to a systematic shift of the 1H and 13C NMR tropylium resonances and is correlated with the electron donating properties of the substituent group. Replacement of the ligand increases the palladium-pnictogen bond length in the order P < As < Sb; however, this only slightly alters the internal Pd-Pd bond lengths, supporting the hypothesis that there are only weak Pd-Pd bonding interactions.

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JO - Inorganic Chemistry

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Effect of Pnictogen ligand substitution on a tripalladium ditropylium core

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CCDC 792705: Experimental Crystal Structure Determination

CCDC 792704: Experimental Crystal Structure Determination

CCDC 792703: Experimental Crystal Structure Determination

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Effect of Pnictogen ligand substitution on a tripalladium ditropylium core

Abstract

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Datasets

CCDC 792705: Experimental Crystal Structure Determination

CCDC 792704: Experimental Crystal Structure Determination

CCDC 792703: Experimental Crystal Structure Determination

Cite this