About: Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4

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About: Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4 Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The new tetraruthenium compound {[Ru(NH3)5]4(μ4-TCNQF4)}(PF6)8, TCNQF4 = 2,3,5,6-tetrafluoro-7,7,8,8,-tetracyano-p-benzoquinodimethane, was studied by cyclic voltammetry, IR, UV–Vis–NIR and EPR spectroelectrochemistry. The better π acceptor qualities of TCNQF4 in comparison to TCNQ cause more accessible reduction to produce {[Ru(NH3)5]4(μ4-TCNQF4)}7+ with enhanced metal contribution to the singly occupied MO and low-energy shifted IR vibrational and NIR electronic absorptions. However, the two-electron oxidation to the (10+) ion is also facilitated. The reason is seen in a more metal-centered oxidation for the TCNQF4 complex while the previously studied TCNQ analogue is assumed to undergo a higher degree of oxidation at the bridging ligand. As a result, the title species has a redox potential range of only 0.52 V, indicating a significantly diminished HOMO–LUMO gap. The new tetraruthenium compound {[Ru(NH3)5]4(μ4-TCNQF4)}(PF6)8, TCNQF4 = 2,3,5,6-tetrafluoro-7,7,8,8,-tetracyano-p-benzoquinodimethane, was studied by cyclic voltammetry, IR, UV–Vis–NIR and EPR spectroelectrochemistry. The better π acceptor qualities of TCNQF4 in comparison to TCNQ cause more accessible reduction to produce {[Ru(NH3)5]4(μ4-TCNQF4)}7+ with enhanced metal contribution to the singly occupied MO and low-energy shifted IR vibrational and NIR electronic absorptions. However, the two-electron oxidation to the (10+) ion is also facilitated. The reason is seen in a more metal-centered oxidation for the TCNQF4 complex while the previously studied TCNQ analogue is assumed to undergo a higher degree of oxidation at the bridging ligand. As a result, the title species has a redox potential range of only 0.52 V, indicating a significantly diminished HOMO–LUMO gap. (en)
Title	Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4 Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4 (en)
skos:prefLabel	Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4 Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4 (en)
skos:notation	RIV/61388955:_____/12:00379901!RIV13-GA0-61388955
http://linked.open...avai/predkladatel	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA203/09/0705), P(LD11086)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Fiedler, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	136016
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/12:00379901
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	EPR; ruthenium; HOMO-LUMO gap (en)
http://linked.open.../riv/klicoveSlovo	EPR HOMO-LUMO gap ruthenium
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[03B235E34752]
http://linked.open...i/riv/nazevZdroje	Polyhedron
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantum chemical interpretation and prediction of spectral characteristics of heavy transition metal complexes Transfer of charge in single and assembled molecules
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	44
http://linked.open...iv/tvurceVysledku	Fiedler, Jan Kaim, W. Schwederski, B. Rajkumar, J.
http://linked.open...ain/vavai/riv/wos	000308844000022
issn	0277-5387
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.poly.2012.06.066
is http://linked.open...avai/riv/vysledek of	Facilitated reduction and oxidation of {[Ru(NH3)5]4(μ4-TCNX)}8+ by changing from TCNX = TCNQ to TCNQF4

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