Stable Dihydrogen Complexes of Cobalt(-I) Suggest an Inverse trans-Influence of Lewis Acidic Group 13 Metalloligands

Matthew V. Vollmer; Jing Xie; Connie C. Lu

doi:10.1021/jacs.7b02870

Stable Dihydrogen Complexes of Cobalt(-I) Suggest an Inverse trans-Influence of Lewis Acidic Group 13 Metalloligands

Matthew V. Vollmer, Jing Xie, Connie C. Lu

Chemistry (Twin Cities)

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

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Abstract

A triad of d¹⁰ cobalt dihydrogen complexes was synthesized by utilizing Lewis acidic group 13 metalloligands, M[N((o-C₆H₄)NCH₂PⁱPr₂)₃], where M = Al, Ga, and In. These complexes have formal Co(-I) oxidation states, representing the only coordination complexes in which dihydrogen is bound to a subvalent transition metal center. Single-crystal X-ray diffraction and NMR studies support the assignment of these complexes as nonclassical dihydrogen adducts of Co(-I).

Original language	English (US)
Pages (from-to)	6570-6573
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	139
Issue number	19
DOIs	https://doi.org/10.1021/jacs.7b02870
State	Published - May 17 2017

Bibliographical note

Funding Information:
The authors thank Dr. Laura Clouston and Ryan Cammarota for synthetic assistance, Dr. Vic Young, Jr. for crystallographic expertise, Dr. Letitia Yao for help in NMR experiments, and Prof. Robert Morris (U of Toronto) and Prof. Laura Gagliardi for insightful discussions. M.V.V. thanks the National Science Foundation for a graduate research fellowship. J.X. thanks the Minnesota Supercomputing Institute (U of M) for computational resources.

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title = "Stable Dihydrogen Complexes of Cobalt(-I) Suggest an Inverse trans-Influence of Lewis Acidic Group 13 Metalloligands",

abstract = "A triad of d10 cobalt dihydrogen complexes was synthesized by utilizing Lewis acidic group 13 metalloligands, M[N((o-C6H4)NCH2PiPr2)3], where M = Al, Ga, and In. These complexes have formal Co(-I) oxidation states, representing the only coordination complexes in which dihydrogen is bound to a subvalent transition metal center. Single-crystal X-ray diffraction and NMR studies support the assignment of these complexes as nonclassical dihydrogen adducts of Co(-I).",

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AU - Lu, Connie C.

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AB - A triad of d10 cobalt dihydrogen complexes was synthesized by utilizing Lewis acidic group 13 metalloligands, M[N((o-C6H4)NCH2PiPr2)3], where M = Al, Ga, and In. These complexes have formal Co(-I) oxidation states, representing the only coordination complexes in which dihydrogen is bound to a subvalent transition metal center. Single-crystal X-ray diffraction and NMR studies support the assignment of these complexes as nonclassical dihydrogen adducts of Co(-I).

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Stable Dihydrogen Complexes of Cobalt(-I) Suggest an Inverse trans-Influence of Lewis Acidic Group 13 Metalloligands

Abstract

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