FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2069198899> ?p ?o ?g. }

• W2069198899 endingPage "4920" @default.
• W2069198899 startingPage "4911" @default.
• W2069198899 abstract "Paramagnetic diruthenium(III) complexes (acac)2RuIII(μ-OC2H5)2RuIII(acac)2 (6) and [(acac)2RuIII(μ-L)RuIII(acac)2](ClO4)2, [7](ClO4)2, were obtained via the reaction of binucleating bridging ligand, N,N,N‘,N‘-tetra(2-pyridyl)-1,4-phenylenediamine [(NC5H4)2−N−C6H4−N-(NC5H4)2, L] with the monomeric metal precursor unit (acac)2RuII(CH3CN)2 in ethanol under aerobic conditions. However, the reaction of L with the metal fragment RuII(bpy)2(EtOH)22+ resulted in the corresponding [(bpy)2RuII (μ-L) RuII(bpy)2](ClO4)4, [8](ClO4)4. Crystal structures of L and 6 show that, in each case, the asymmetric unit consists of two independent half-molecules. The Ru−Ru distances in the two crystallographically independent molecules (F and G) of 6 are found to be 2.6448(8) and 2.6515(8) Å, respectively. Variable-temperature magnetic studies suggest that the ruthenium(III) centers in 6 and [7](ClO4)2 are very weakly antiferromagnetically coupled, having J = −0.45 and −0.63 cm-1, respectively. The g value calculated for 6 by using the van Vleck equation turned out to be only 1.11, whereas for [7](ClO4)2, the g value is 2.4, as expected for paramagnetic Ru(III) complexes. The paramagnetic complexes 6 and [7]2+ exhibit rhombic EPR spectra at 77 K in CHCl3 (g1 = 2.420, g2 = 2.192, g3 = 1.710 for 6 and g1 = 2.385, g2 = 2.177, g3 = 1.753 for [7]2+). This indicates that 6 must have an intermolecular magnetic interaction, in fact, an antiferromagnetic interaction, along at least one of the crystal axes. This conclusion was supported by ZINDO/1-level calculations. The complexes 6, [7]2+, and [8]4+ display closely spaced Ru(III)/Ru(II) couples with 70, 110, and 80 mV separations in potentials between the successive couples, respectively, implying weak intermetallic electrochemical coupling in their mixed-valent states. The electrochemical stability of the Ru(II) state follows the order: [7]2+ < 6 < [8]4+. The bipyridine derivative [8]4+ exhibits a strong luminescence [quantum yield (φ) = 0.18] at 600 nm in EtOH/MeOH (4:1) glass (at 77 K), with an estimated excited-state lifetime of approximately 10 μs." @default.
• W2069198899 created "2016-06-24" @default.
• W2069198899 creator A5014287826 @default.
• W2069198899 creator A5018152460 @default.
• W2069198899 creator A5019732428 @default.
• W2069198899 creator A5035863623 @default.
• W2069198899 creator A5054766972 @default.
• W2069198899 creator A5062826786 @default.
• W2069198899 creator A5084792068 @default.
• W2069198899 creator A5085292862 @default.
• W2069198899 date "2004-07-09" @default.
• W2069198899 modified "2023-09-23" @default.
• W2069198899 title "Diruthenium Complexes [{(acac)₂Ru^III}₂(μ-OC₂H₅)₂], [{(acac)₂Ru^III}₂(μ-L)](ClO₄)₂, and [{(bpy)₂Ru^II}₂(μ-L)](ClO₄)₄ [L = (NC₅H₄)₂−N−C₆H₄−N−(NC₅H₄)₂, acac = Acetylacetonate, and bpy = 2,2‘-Bipyridine]. Synthesis, Structure, Magnetic, …" @default.
• W2069198899 cites W1893181337 @default.
• W2069198899 cites W1966377407 @default.
• W2069198899 cites W1968983326 @default.
• W2069198899 cites W1975304046 @default.
• W2069198899 cites W1977464053 @default.
• W2069198899 cites W1977935357 @default.
• W2069198899 cites W1982011836 @default.
• W2069198899 cites W1990038534 @default.
• W2069198899 cites W1992435922 @default.
• W2069198899 cites W1993572775 @default.
• W2069198899 cites W1993665668 @default.
• W2069198899 cites W1994294469 @default.
• W2069198899 cites W1995287303 @default.
• W2069198899 cites W1999139423 @default.
• W2069198899 cites W2000045202 @default.
• W2069198899 cites W2006582054 @default.
• W2069198899 cites W2006847450 @default.
• W2069198899 cites W2008803333 @default.
• W2069198899 cites W2011037748 @default.
• W2069198899 cites W2012602925 @default.
• W2069198899 cites W2015438946 @default.
• W2069198899 cites W2017363425 @default.
• W2069198899 cites W2019600580 @default.
• W2069198899 cites W2021559650 @default.
• W2069198899 cites W2021616354 @default.
• W2069198899 cites W2027845130 @default.
• W2069198899 cites W2030271846 @default.
• W2069198899 cites W2032704980 @default.
• W2069198899 cites W2045462783 @default.
• W2069198899 cites W2045552677 @default.
• W2069198899 cites W2048046882 @default.
• W2069198899 cites W2050746047 @default.
• W2069198899 cites W2051898940 @default.
• W2069198899 cites W2058870590 @default.
• W2069198899 cites W2059264975 @default.
• W2069198899 cites W2064152315 @default.
• W2069198899 cites W2065301809 @default.
• W2069198899 cites W2079982098 @default.
• W2069198899 cites W2080404701 @default.
• W2069198899 cites W2081238837 @default.
• W2069198899 cites W2081724133 @default.
• W2069198899 cites W2082496720 @default.
• W2069198899 cites W2084803362 @default.
• W2069198899 cites W2086207791 @default.
• W2069198899 cites W2086478424 @default.
• W2069198899 cites W2090587829 @default.
• W2069198899 cites W2092100996 @default.
• W2069198899 cites W2092240706 @default.
• W2069198899 cites W2095014715 @default.
• W2069198899 cites W2115023360 @default.
• W2069198899 cites W2139668243 @default.
• W2069198899 cites W2150613327 @default.
• W2069198899 cites W2164519204 @default.
• W2069198899 cites W2313602266 @default.
• W2069198899 cites W2319788209 @default.
• W2069198899 cites W2319842638 @default.
• W2069198899 cites W2321798101 @default.
• W2069198899 cites W2486042218 @default.
• W2069198899 cites W2497007159 @default.
• W2069198899 cites W2950293636 @default.
• W2069198899 cites W2951932022 @default.
• W2069198899 cites W2952695194 @default.
• W2069198899 doi "https://doi.org/10.1021/ic0498900" @default.
• W2069198899 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15285667" @default.
• W2069198899 hasPublicationYear "2004" @default.
• W2069198899 type Work @default.
• W2069198899 sameAs 2069198899 @default.
• W2069198899 citedByCount "32" @default.
• W2069198899 countsByYear W20691988992012 @default.
• W2069198899 countsByYear W20691988992013 @default.
• W2069198899 countsByYear W20691988992014 @default.
• W2069198899 countsByYear W20691988992015 @default.
• W2069198899 countsByYear W20691988992016 @default.
• W2069198899 countsByYear W20691988992017 @default.
• W2069198899 countsByYear W20691988992018 @default.
• W2069198899 countsByYear W20691988992019 @default.
• W2069198899 countsByYear W20691988992020 @default.
• W2069198899 countsByYear W20691988992023 @default.
• W2069198899 crossrefType "journal-article" @default.
• W2069198899 hasAuthorship W2069198899A5014287826 @default.
• W2069198899 hasAuthorship W2069198899A5018152460 @default.
• W2069198899 hasAuthorship W2069198899A5019732428 @default.
• W2069198899 hasAuthorship W2069198899A5035863623 @default.
• W2069198899 hasAuthorship W2069198899A5054766972 @default.
• W2069198899 hasAuthorship W2069198899A5062826786 @default.

• next