skip to main content

This content will become publicly available on January 17, 2023

Title: The Ruthenium Nitrosyl Moiety in Clusters: Trinuclear Linear μ-Hydroxido Magnesium(II)-Diruthenium(II), μ 3 -Oxido Trinuclear Diiron(III)–Ruthenium(II), and Tetranuclear μ 4 -Oxido Trigallium(III)-Ruthenium(II) Complexes
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Award ID(s):
1834750
Publication Date:
NSF-PAR ID:
10316320
Journal Name:
Inorganic Chemistry
Volume:
61
Issue:
2
ISSN:
0020-1669
Sponsoring Org:
National Science Foundation
More Like this
  1. The synthesis, photophysics, and electrochemiluminescence (ECL) of four water-soluble dinuclear Ir( iii ) and Ru( ii ) complexes (1–4) terminally-capped by 4′-phenyl-2,2′:6′,2′′-terpyridine (tpy) or 1,3-di(pyrid-2-yl)-4,6-dimethylbenzene (N^C^N) ligands and linked by a 2,7-bis(2,2′:6′,2′′-terpyridyl)fluorene with oligoether chains on C9 are reported. The impact of the tpy or N^C^N ligands and metal centers on the photophysical properties of 1–4 was assessed by spectroscopic methods including UV-vis absorption, emission, and transient absorption, and by time-dependent density functional theory (TDDFT) calculations. These complexes exhibited distinct singlet and triplet excited-state properties upon variation of the terminal-capping terdentate ligands and the metal centers. The ECL properties of complexes 1–3 with better water solubility were investigated in neutral phosphate buffer solutions (PBS) by adding tripropylamine (TPA) as a co-reactant, and the observed ECL intensity followed the descending order of 3 > 1 > 2. Complex 3 bearing the [Ru(tpy) 2 ] 2+ units displayed more pronounced ECL signals, giving its analogues great potential for further ECL study.