Chemical consequences of pyrazole orientation in RuII complexes of unsymmetric quinoline-pyrazole ligands
Journal article, 2016

A series of homoleptic RuII complexes including the tris-bidentate complexes of a new bidentate ligand 8-(1-pyrazol)-quinoline (Q1Pz) and bidentate 8-(3-pyrazol)-quinoline (Q3PzH), as well as the bis-tridentate complex of bis(quinolinyl)-1,3-pyrazole (DQPz) was studied. Together these complexes explore the orientation of the pyrazole relative to the quinoline. By examining the complexes structurally, photophysically, photochemically, electrochemically, and computationally by DFT and TD-DFT, it is shown that the pyrazole orientation has a significant influence on key properties. In particular, its orientation has noticeable effects on oxidation and reduction potentials, photostability and proton sensitivity, indicating that [Ru(Q3PzH)3]2+ is a particularly good local environment acidity-probe candidate.

Author

Joachim Hedberg Wallenstein

Chalmers, Physics, Condensed Matter Physics

L. A. Fredin

Lund University

M. Jarenmark

Lund University

Maria Abrahamsson

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

P. Persson

Lund University

Dalton Transactions

1477-9226 (ISSN) 1477-9234 (eISSN)

Vol. 45 29 11723-11732

Subject Categories

Chemical Engineering

DOI

10.1039/c6dt01070a

More information

Latest update

11/5/2018