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Effects of Non-Covalent Interactions on the Electronic and Electrochemical Properties of Cu(i) Biquinoline Complexes

Effects of Non-Covalent Interactions on the Electronic and Electrochemical Properties of Cu(i) Biquinoline Complexes

Natalia P Martínez, Mauricio Isaacs, Allen G Oliver, G Ferraudi, A Graham Lappin, Juan Guerrero

Dalton Trans. 2018 Oct 7;47(37):13171-13179.

PMID: 30177987

Abstract:

A Cu(i) complex {[CuI(biq)2]ClO4-biq} with biq = 2,2'-biquinoline was prepared, fully characterized and its properties compared with those of the well-known [CuI(biq)2]ClO4 complex. The crystal structures were obtained for both complexes (crystal structure for [CuI(biq)2]ClO4 has not been previously reported). Complex [CuI(biq)2]ClO4 crystallizes as a racemate where each enantiomer has a different τ4 value while compound {[CuI(biq)2]ClO4-biq} crystallizes as a non-chiral supramolecular aggregate with an uncoordinated biq molecule forming a π-π stacking interaction with a coordinated biq. 1H-NMR spectroscopy in non-coordinating solvents reveals that structures in solution are similar to those in the solid phase, confirming the presence of a supramolecular arrangement for compound {[CuI(biq)2]ClO4-biq}. The stability of the non-covalent aggregate in solution of {[CuI(biq)2]ClO4-biq} causes significant differences between the spectroscopic and electrochemical properties of {[CuI(biq)2]ClO4-biq} and [CuI(biq)2]ClO4.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP223387755	BIQ		223387-75-5	Price

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