2,5-Dioxido-1,4-benzoquinonediimine (H2L2-), a hydrogen-bonding noninnocent bridging ligand related to aminated topaquinone: Different oxidation state distributions in complexes (bpy)2Ru2(m-H2L)n (n = 0 , +, 2+, 3+, 4+) and (acac)2Ru2(m-H2L)m (m = 2-, -, 0, +, 2+). Chemistry - A European Journal, (11)17:4901--4911, 2005. [PUMA: acac bond bridged bridging charge complex complex;crystal complex;electrochem complex;hydrogen complex;mixed complex;ruthenium dinuclear dioxidobenzoquinonediimine electrochem ligand prepn redox ruthenium structure transfer valence]
Widely differing stabilities of molecule-bridged cyanodiiron(III,II) species in non-aqueous solvents. Inorganica Chimica Acta, (291)1-2:66--73, 1999. [PUMA: ESR IR UV bipyridine comproportionation const;mixed cyano electrochem iron prepn pyrazine pyridylethene pyrimidyltetrazine pyrimidyltetrazine;iron pyrimidyltetrazine;pyrazine redox redox;electrochem redox;pyridylethene redox;pyrimidyltetrazine valence]
Mixed-valent and radical states of complexes (bpy)2M(m-abpy)M'(bpy)2n+, M,M' = Ru or Os, abpy = 2,2'-azobispyridine: Electron transfer vs. hole transfer mechanism in azo ligand-bridged complexes. Inorganica Chimica Acta, (359)3:821--829, 2006. [PUMA: EPR azobispyridine bridge complex complex;electron complex;hole complex;mixed cyclic electrochem heterobinuclear;osmium homobinuclear osmium prepn redox ruthenium spectroelectrochem;radical transfer valence voltammetry]
Strong metal-metal coupling in mixed-valent intermediates Cl(L)Ru(m-tppz)Ru(L)Cl+, L = b-diketonato ligands, tppz = 2,3,5,6-tetrakis(2-pyridyl)pyrazine. Dalton Transactions, (41)43:13429--13440, 2012. [PUMA: DFT;optimized MO MO;dinuclear acetylacetonate acetylacetonato crystal diketonate dinuclear electrochem mixed mol prepn pyridylpyrazine redox ruthenium structure valence]
Multiple one-electron oxidation and reduction of trinuclear bis(2,4-pentanedionato)ruthenium complexes with substituted diquinoxalino2,3-a:2',3'-cphenazine ligands. Polyhedron, (26)13:3409--3418, 2007. [PUMA: DFT MO acac diquinoxalinophenazine electrochem frontier mixed prepn redox;spectroelectrochem ruthenium substituted trinuclear trinuclear;EPR trinuclear;mixed trinuclear;ruthenium valence]
Valence Delocalization despite Weak Metal-Metal Coupling in a Bis(organoosmium(III,II)) Complex with a Pyrazine Bridge. Organometallics, (17)23:4923--4925, 1998. [PUMA: bridged complex complex;mixed complex;osmium delocalization;spectroelectrochem dinuclear electrochem osmium oxidn prepn pyrazine valence]
When Is an Odd-Electron Dinuclear Complex a Mixed-Valent Species? Tuning of Ligand-to-Metal Spin Shifts in Diruthenium(III,II) Complexes of Noninnocent Bridging Ligands OC(R)NNC(R)O. Inorganic Chemistry, (34)7:1924--1933, 1995. [PUMA: azodicarbonyl complex complex;electron complex;mixed complex;substituent configuration dinuclear effect electrochem ruthenium valence]