About: New ways to a series of parent representatives of the eight-, nine-, and ten-vertex monocarbaborane family

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Je popsána příprava nových představitelů 8-, 9- a 10-vrcholové serie monokarbaboranů, která je založena na postupné degradaci dekaboranového skeletu za různých reakčních podmínek. (cs) The conditions for a reaction between nido-B10H14 (1) and aqueous formaldehyde in an alkaline solution have been optimized, which resulted in the isolation of the [arachno-6-CB9H14](-) anion (2) in 52% yield. Anion 2 was used as a convenient source for the synthesis of a series of basic monocarbaborane compounds. Thus, oxidation of 2 (Et4N+ salt) with I-2 in CH2Cl2 in the presence of Et3N at room temperature afforded the [nido-6-CB9H12](-) anion (3). Acidification of anion 2 (generated in situ from borane 1) with hydrochloric acid, in the presence of both FeCl3-6H(2)O and CH2O, led to the formation of arachno-4-CB8H4 (4), from which nido-1-CB8H12 (5) was obtained by dehydrogenation at 200 degreesC in quantitative yield. Compound 4 can easily be converted into the [closo-1-CB7H8](-) anion (6) in 71% yield via reaction with Et3N and I-2 in THF at -78 degreesC. Anion 6 is also formed in 75% yield by treatment of carborane 5 with Et3N in refluxing toluene. The [closo-1-CB8H9](-) anion (... The conditions for a reaction between nido-B10H14 (1) and aqueous formaldehyde in an alkaline solution have been optimized, which resulted in the isolation of the [arachno-6-CB9H14](-) anion (2) in 52% yield. Anion 2 was used as a convenient source for the synthesis of a series of basic monocarbaborane compounds. Thus, oxidation of 2 (Et4N+ salt) with I-2 in CH2Cl2 in the presence of Et3N at room temperature afforded the [nido-6-CB9H12](-) anion (3). Acidification of anion 2 (generated in situ from borane 1) with hydrochloric acid, in the presence of both FeCl3-6H(2)O and CH2O, led to the formation of arachno-4-CB8H4 (4), from which nido-1-CB8H12 (5) was obtained by dehydrogenation at 200 degreesC in quantitative yield. Compound 4 can easily be converted into the [closo-1-CB7H8](-) anion (6) in 71% yield via reaction with Et3N and I-2 in THF at -78 degreesC. Anion 6 is also formed in 75% yield by treatment of carborane 5 with Et3N in refluxing toluene. The [closo-1-CB8H9](-) anion (... (en)
Title	New ways to a series of parent representatives of the eight-, nine-, and ten-vertex monocarbaborane family Nové cesty k serii mateřských representantů 8-, 9- a 10-vrcholové rodiny monokarbaboranů (cs) New ways to a series of parent representatives of the eight-, nine-, and ten-vertex monocarbaborane family (en)
skos:prefLabel	New ways to a series of parent representatives of the eight-, nine-, and ten-vertex monocarbaborane family Nové cesty k serii mateřských representantů 8-, 9- a 10-vrcholové rodiny monokarbaboranů (cs) New ways to a series of parent representatives of the eight-, nine-, and ten-vertex monocarbaborane family (en)
skos:notation	RIV/61388980:_____/04:00106540!RIV/2005/AV0/A50005/N
http://linked.open.../vavai/riv/strany	3605;3611
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IBS4032007), P(LN00A028), Z(AV0Z4032918), Z(MSM 113100001)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Jelínek, Tomáš Holub, Josef Štíbr, Bohumil Bakardjiev, Mario Hnyk, Drahomír Bačkovský, Jaroslav
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	576216
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/04:00106540
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	boranes; carboranes; geometry optimization (en)
http://linked.open.../riv/klicoveSlovo	boranes geometry optimization carboranes
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[D30D10473379]
http://linked.open...i/riv/nazevZdroje	European Journal of Inorganic Chemistry
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	New inorganic compounds and advanced materials Methodical centre for the development of new technological processes for the production of boron compounds
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	-
http://linked.open...iv/tvurceVysledku	Bakardjiev, Mario Holub, Josef Jelínek, Tomáš Štíbr, Bohumil Hnyk, Drahomír Hofmann, M. Bačkovský, Jaroslav Wrackmeyer, B. Brellochs, B. Cásařová, I.
http://linked.open...n/vavai/riv/zamer	Synthesis and structure of novel (inorganic) compounds, clusters and composites; mechanisms of conversion and transfer in systems involving inorganic substance http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20113100001
issn	1434-1948
number of pages	7 (xsd:int)

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