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Molecular helicity in inorganic complexes: double helical binuclear complexes of 2,2′ : 6′,2″ : 6″,2‴ : 6‴,2â�—-quinquepyridine (L): crystal structures of [Cu<sub>2</sub>L<sub>2</sub>(O<sub>2</sub>CMe)][PF<sub>6</sub>]<sub>3</sub>·H<sub>2</sub>O and [Cu<sub>2</sub>L<sub>2</sub>][PF<sub>6</sub>]<sub>3</sub>·2MeCN

Mark H. Barley, Edwin C. Constable, Stuart Corr, Roderick C. S. McQueen, Jennifer C. Nutkins, Michael D. Ward, Michael G. B. Drew

Journal of the Chemical Society Dalton Transactions · 1988 · 67 citations · 0 references

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Abstract

The potentially pentadentate ligand 2,2′ : 6′,2″ : 6″,2‴,2â�—-quinquepyridine (L, quinquepy) forms complexes with first row transition-metal cations of 2 : 2 stoicheiometry. Crystallographic studies of the complexes [Cu2L2(O2CMe)][PF6]3·H2O and [Cu2L2][PF6]3·2MeCN reveal a double helical arrangement of the ligands about the metals.