Chelation-enhanced circular dichroism of tripodal bisporphyrin ligands

Andrea E. Holmes; Debasis Das; James W. Canary

doi:10.1021/ja0666147

Chelation-enhanced circular dichroism of tripodal bisporphyrin ligands

Andrea E. Holmes, Debasis Das, James W. Canary

Chemistry

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

Abstract

A chiral tripodal ligand readily prepared from primary amines that contains two monosubstituted tetraphenylporphyrin (TPP) moieties is described. Complexation with Cu(II) in the presence of NH₄SCN gives a fully metalated porphyrin and tripodal ligand complex. The free ligand shows a weak circular dichroism (CD) signal, but metalation gives a strong exciton-coupled CD spectrum. Reduction of the Cu(II) complex results in loss of CD signal.

Original language	English (US)
Pages (from-to)	1506-1507
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	129
Issue number	6
DOIs	https://doi.org/10.1021/ja0666147
State	Published - Feb 14 2007

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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abstract = "A chiral tripodal ligand readily prepared from primary amines that contains two monosubstituted tetraphenylporphyrin (TPP) moieties is described. Complexation with Cu(II) in the presence of NH4SCN gives a fully metalated porphyrin and tripodal ligand complex. The free ligand shows a weak circular dichroism (CD) signal, but metalation gives a strong exciton-coupled CD spectrum. Reduction of the Cu(II) complex results in loss of CD signal.",

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AU - Canary, James W.

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N2 - A chiral tripodal ligand readily prepared from primary amines that contains two monosubstituted tetraphenylporphyrin (TPP) moieties is described. Complexation with Cu(II) in the presence of NH4SCN gives a fully metalated porphyrin and tripodal ligand complex. The free ligand shows a weak circular dichroism (CD) signal, but metalation gives a strong exciton-coupled CD spectrum. Reduction of the Cu(II) complex results in loss of CD signal.

AB - A chiral tripodal ligand readily prepared from primary amines that contains two monosubstituted tetraphenylporphyrin (TPP) moieties is described. Complexation with Cu(II) in the presence of NH4SCN gives a fully metalated porphyrin and tripodal ligand complex. The free ligand shows a weak circular dichroism (CD) signal, but metalation gives a strong exciton-coupled CD spectrum. Reduction of the Cu(II) complex results in loss of CD signal.

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Chelation-enhanced circular dichroism of tripodal bisporphyrin ligands

Abstract

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