About: Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-)

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About: Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Iodination of [closo-1-CB7H8](-) (anion 1) with elemental iodine under various controlled conditions yields a continuum from mono-to hexaiodinated derivatives including the previously unknown [closo-1-CB7H5-6,7,8-I-3](-) (anion 5) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-) (anion 8). These species, characterized by mass spectrometry and NMR spectroscopy, and, in the case of 8, by single-crystal X-ray diffraction, provide insight into the fluxional molecular behavior of anion 1 in solution. Investigation of direct electrophilic substitution on the carbon-vertex of anion 1 using standard conditions and reagents (deprotonation by BuLi followed by addition of electrophile) proved futile, but the same conditions when using the new triiodo-deravitive anion 5 resulted in the formation of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) (anion 9), in 60% yield. Iodination of [closo-1-CB7H8](-) (anion 1) with elemental iodine under various controlled conditions yields a continuum from mono-to hexaiodinated derivatives including the previously unknown [closo-1-CB7H5-6,7,8-I-3](-) (anion 5) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-) (anion 8). These species, characterized by mass spectrometry and NMR spectroscopy, and, in the case of 8, by single-crystal X-ray diffraction, provide insight into the fluxional molecular behavior of anion 1 in solution. Investigation of direct electrophilic substitution on the carbon-vertex of anion 1 using standard conditions and reagents (deprotonation by BuLi followed by addition of electrophile) proved futile, but the same conditions when using the new triiodo-deravitive anion 5 resulted in the formation of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) (anion 9), in 60% yield. (en)
Title	Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) (en)
skos:prefLabel	Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) (en)
skos:notation	RIV/61388980:_____/10:00356979!RIV11-MSM-61388980
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC523), P(ME09114), Z(AV0Z40320502), Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Janoušek, Zbyněk Dostál, Radim Kvíčalová, Magdalena Macháček, Jan Londesborough, Michael Geoffrey Stephen
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	263388
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/10:00356979
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	carboranes; monocarborane anions; eight-vertex (en)
http://linked.open.../riv/klicoveSlovo	carboranes eight-vertex monocarborane anions
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8E64ECA5D264]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Perspective inorganic materials Collaboration in Energy and Nanoscience
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	75
http://linked.open...iv/tvurceVysledku	Císařová, I. Kvíčalová, Magdalena Londesborough, Michael Geoffrey Stephen Macháček, Jan Janoušek, Zbyněk Dostál, Radim
http://linked.open...ain/vavai/riv/wos	000282524200003
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 Nové molekulární systémy pro pokročilé aplikace prospěšné pro zdraví a šetrné k životnímu prostředí
issn	0010-0765
number of pages	17 (xsd:int)

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