About: Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum

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About: Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum Goto Sponge Distinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Nuclear magnetic resonance (NMR) of paramagnetic molecules (pNMR) provides detailed information on the structure and bonding of metallo-organic systems. The physical mechanisms underlying chemical shifts are considerably more complicated in the presence of unpaired electrons than in the case of diamagnetic compounds. We show that this combined theoretical and experimental analysis constitutes a firm basis for the assignment of experimental B-11 NMR chemical shifts in paramagnetic metallaboranes. In the calculations, the roles of the different physical contributions to the pNMR chemical shift are elaborated, and the performance of different popular exchange-correlation functionals of density-functional theory as well as basis sets, are evaluated. A dynamic correction to the calculated shifts via first-principles molecular dynamics simulations is found to be important. Solvent effects on the chemical shifts were computed and found to be of minor significance. Nuclear magnetic resonance (NMR) of paramagnetic molecules (pNMR) provides detailed information on the structure and bonding of metallo-organic systems. The physical mechanisms underlying chemical shifts are considerably more complicated in the presence of unpaired electrons than in the case of diamagnetic compounds. We show that this combined theoretical and experimental analysis constitutes a firm basis for the assignment of experimental B-11 NMR chemical shifts in paramagnetic metallaboranes. In the calculations, the roles of the different physical contributions to the pNMR chemical shift are elaborated, and the performance of different popular exchange-correlation functionals of density-functional theory as well as basis sets, are evaluated. A dynamic correction to the calculated shifts via first-principles molecular dynamics simulations is found to be important. Solvent effects on the chemical shifts were computed and found to be of minor significance. (en)
Title	Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum (en)
skos:prefLabel	Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum Ferrocene-like iron bis(dicarbollide), [3-Fe-III-(1,2-C2B9H11)(2)](-). The first experimental and theoretical refinement of a paramagnetic B-11 NMR spectrum (en)
skos:notation	RIV/61388980:_____/10:00357024!RIV11-GA0-61388980
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP208/10/2269), P(LC523), Z(AV0Z40320502)
http://linked.open...iv/cisloPeriodika	26
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Hnyk, Drahomír Macháček, 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 anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	259016
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/10:00357024
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	transition-metal-complexes; boron hydride derivatives; correlation-energy (en)
http://linked.open.../riv/klicoveSlovo	boron hydride derivatives correlation-energy transition-metal-complexes
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5C7EF16172F9]
http://linked.open...i/riv/nazevZdroje	Physical Chemistry Chemical Physics
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Perspective inorganic materials Vývoj a strukturní charateristika možných prekursorů borových nanotrubic na bázi spojených ikosahedronů. Sdílené ikosahedrony kovem.
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	12
http://linked.open...iv/tvurceVysledku	Macháček, Jan Hnyk, Drahomír Vaara, J. Taubert, S. Pennanen, T. O.
http://linked.open...ain/vavai/riv/wos	000279098300015
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí
issn	1463-9076
number of pages	8 (xsd:int)

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