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Sensitization of NO‐Releasing Ruthenium Complexes to Visible Light
Author(s) -
Becker Tobias,
Kupfer Stephan,
Wolfram Martin,
Görls Helmar,
Schubert Ulrich S.,
Anslyn Eric V.,
Dietzek Benjamin,
Gräfe Stefanie,
Schiller Alexander
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502091
Subject(s) - ruthenium , ligand (biochemistry) , density functional theory , lithium (medication) , chemistry , photochemistry , computational chemistry , catalysis , organic chemistry , medicine , biochemistry , receptor , endocrinology
We report a combined spectroscopical–theoretical investigation on the photosensitization of transition metal nitrosyl complexes. For this purpose, ruthenium nitrosyl complexes based on tetradentate biscarboxamide ligands were synthesized. A crystal structure analysis of a lithium‐based ligand intermediate is described. The Ru complexes have been characterized regarding their photophysical and nitric oxide (NO) releasing properties. Quantum chemical calculations have been performed to unravel the influence of the biscarboxamide ligand frame with respect to the molecular electronic properties of the NO‐releasing pathway. A quantitative measure for the ligand design within photosensitized Ru complexes is introduced and evaluated spectroscopically and theoretically by using time‐dependent density functional theory.