Transient photocyclization in ruthenium(ii) polypyridine complexes of indolamines

Ruthenium polypyridine complexes have proved to be useful caging groups for visible-light photodelivery of biomolecules. In most photoreactions, one ligand is expelled upon irradiation, yielding ruthenium mono-aqua complexes and no other photoproduct. In this work we show that a long-lived transient...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2017, Vol.19 (3), p.2140-2147
Main Authors: Carrone, G, Zayat, L, Slep, L D, Etchenique, R
Format: Article
Language:English
Subjects:
Amines
Aromatic compounds
Biomolecules
Compatibility
Irradiation
Ligands
Physical chemistry
Ruthenium
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Summary:Ruthenium polypyridine complexes have proved to be useful caging groups for visible-light photodelivery of biomolecules. In most photoreactions, one ligand is expelled upon irradiation, yielding ruthenium mono-aqua complexes and no other photoproduct. In this work we show that a long-lived transient photoproduct is generated when the ruthenium complexes involve indolamines. The spatial conformation of this species is compatible with a cyclic structure that contains both the amine and the normally non-coordinating aromatic ring coordinated to the ruthenium center.
ISSN:1463-9076
1463-9084
DOI:10.1039/c6cp06580e