Fluxional motion in a dinuclear copper(i) complex with a propeller-type ligand: metal hopping on both sides

The first study of fluxional motion in [Cu (2-HPB)(MeCN) Cl ] (1,2-HPB = hexa(2-pyridyl)benzene) is presented. For detailed examination of the fluxional motion mechanism, a monofluorinated derivative of the ligand (MFHPB) and its copper(i) complexes were synthesized and characterized. The solution N...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2018-12, Vol.47 (48), p.17206-17210
Main Authors: Kwon, Hyunchul, Lee, Eunsung
Format: Article
Language:English
Subjects:
Benzene
Coordination compounds
Copper
Copper compounds
Crystallography
Ligands
NMR
Nuclear magnetic resonance
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Summary:The first study of fluxional motion in [Cu (2-HPB)(MeCN) Cl ] (1,2-HPB = hexa(2-pyridyl)benzene) is presented. For detailed examination of the fluxional motion mechanism, a monofluorinated derivative of the ligand (MFHPB) and its copper(i) complexes were synthesized and characterized. The solution NMR studies of monofluoro copper(i) complex 1a suggest the existence of five species in equilibrium. NMR spectra and DFT calculations suggest the fluxional motion of 1 resulting in the "metal hopping process" of two copper(i) ions.
ISSN:1477-9226
1477-9234
DOI:10.1039/C8DT03884H