Chemical consequences of pyrazole orientation in RuII complexes of unsymmetric quinoline-pyrazole ligands
Artikel i vetenskaplig tidskrift, 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.

Författare

Joachim Wallenstein

Chalmers, Fysik, Kondenserade materiens fysik

L. A. Fredin

Lunds universitet

M. Jarenmark

Lunds universitet

Maria Abrahamsson

Chalmers, Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi

P. Persson

Lunds universitet

Dalton Transactions

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

Vol. 45 11723-11732

Ämneskategorier

Kemiteknik

DOI

10.1039/c6dt01070a