Filling Gaps in the Series of Noninnocent Hetero-1,3-diene Chelate Ligands: Ruthenium Complexes of Redox-Active alpha-Azocarbonyl and alpha-Azothiocarbonyl Ligands RNNC(R ')E, E = O or S
Result description
The series of 4-center unsaturated chelate ligands A=B-C=D with redox activity to yield (-)A-B=C-D- in two steps has been complemented by two new combinations RNNC(R')E, E = O or S, R = R' = Ph. The ligands N-benzoyl-N'-phenyldiazene = L-O, and N-thiobenzoyl-N'-phenyldiazene = L-S, (obtained in situ) form structurally characterized compounds [(acac)(2)Ru(L)], 1 with L = L-O, and 3 with L = L-S, and [(bpy)(2)Ru(L)](PF6), 2(PF6) with L = L-O, and 4(PF6) with L = L-S (acac(-) = 2,4-pentanedionato; bpy = 2,2'-bipyridine). According to spectroscopy and the N-N distances around 1.35 angstrom and N-C bond lengths of about 1.33 angstrom, all complexes involve the monoanionic (radical) ligand form. For 1 and 3, the antiferromagnetic spin spin coupling with electron transfer-generated Rum leads to diamagnetic ground states of the neutral complexes, whereas the cations 2(+). and 4(+) are EPR-active radical ligand complexes of Ru-II. The complexes are reduced and oxidized in reversible one-electro
Keywords
TRANSITION-METAL-COMPLEXESDENSITY-FUNCTIONAL CALCULATIONSORDER REGULAR APPROXIMATION
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Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Filling Gaps in the Series of Noninnocent Hetero-1,3-diene Chelate Ligands: Ruthenium Complexes of Redox-Active alpha-Azocarbonyl and alpha-Azothiocarbonyl Ligands RNNC(R ')E, E = O or S
Original language description
The series of 4-center unsaturated chelate ligands A=B-C=D with redox activity to yield (-)A-B=C-D- in two steps has been complemented by two new combinations RNNC(R')E, E = O or S, R = R' = Ph. The ligands N-benzoyl-N'-phenyldiazene = L-O, and N-thiobenzoyl-N'-phenyldiazene = L-S, (obtained in situ) form structurally characterized compounds [(acac)(2)Ru(L)], 1 with L = L-O, and 3 with L = L-S, and [(bpy)(2)Ru(L)](PF6), 2(PF6) with L = L-O, and 4(PF6) with L = L-S (acac(-) = 2,4-pentanedionato; bpy = 2,2'-bipyridine). According to spectroscopy and the N-N distances around 1.35 angstrom and N-C bond lengths of about 1.33 angstrom, all complexes involve the monoanionic (radical) ligand form. For 1 and 3, the antiferromagnetic spin spin coupling with electron transfer-generated Rum leads to diamagnetic ground states of the neutral complexes, whereas the cations 2(+). and 4(+) are EPR-active radical ligand complexes of Ru-II. The complexes are reduced and oxidized in reversible one-electro
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
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Result continuities
Project
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Inorganic Chemistry
ISSN
0020-1669
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
6237-6244
UT code for WoS article
000304728500030
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CG - Electrochemistry
Year of implementation
2012