A1 Journal article (refereed)
Molecular Complexes Featuring Unsupported Dispersion-Enhanced Aluminum–Copper and Gallium–Copper Bonds (2020)

Mears, K. L., Stennett, C. R., Taskinen, E. K., Knapp, C. E., Carmalt, C. J., Tuononen, H. M., & Power, P. P. (2020). Molecular Complexes Featuring Unsupported Dispersion-Enhanced Aluminum–Copper and Gallium–Copper Bonds. Journal of the American Chemical Society, 142(47), 19874-19878. https://doi.org/10.1021/jacs.0c10099

JYU authors or editors

Taskinen, Elina
Tuononen, Heikki

Publication details

All authors or editors: Mears, Kristian L.; Stennett, Cary R.; Taskinen, Elina K.; Knapp, Caroline E.; Carmalt, Claire J.; Tuononen, Heikki M.; Power, Philip P.

Journal or series: Journal of the American Chemical Society

ISSN: 0002-7863

eISSN: 1520-5126

Publication year: 2020

Publication date: 10/11/2020

Volume: 142

Issue number: 47

Pages range: 19874-19878

Publisher: American Chemical Society (ACS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/jacs.0c10099

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/73380

Abstract

The reaction of the copper(I) β-diketiminate copper complex {(Cu(BDIMes))2(μ-C6H6)} (BDIMes = N,N′-bis(2,4,6-trimethylphenyl)pentane-2,4-diiminate) with the low-valent group 13 metal β-diketiminates M(BDIDip) (M = Al or Ga; BDIDip = N,N′-bis(2,6-diisopropylphenyl)pentane-2,4-diiminate) in toluene afforded the complexes {(BDIMes)CuAl(BDIDip)} and {(BDIMes)CuGa(BDIDip)}. These feature unsupported copper–aluminum or copper–gallium bonds with short metal–metal distances, Cu–Al = 2.3010(6) Å and Cu–Ga = 2.2916(5) Å. Density functional theory (DFT) calculations showed that approximately half of the calculated association enthalpies can be attributed to London dispersion forces.

Keywords: coordination complexes; copper; aluminium; gallium; chemical bonds

Free keywords: copper; metals; ligands; electron density; enthalpy

Fields of science: