About: Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes.

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About: Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	New phenyltetramethylcyclopentadienyl trinuclear titanocene hydride - magnesium hydride complexes [{Ti(.eta.5-C5Me4R)2(.mu.-H)2}2Mg], where R = Ph (1) or 4-fluorophenyl (FPh, 2), the dinuclear [Ti(.eta.5-C5Me4Ph)[.eta.5:.eta.1{Ti:Mg}-C5Me4(o-C6H4)](.mu.-H)2Mg(THF)2] (3) and [Ti(.eta.5-C5Me4Ph)2(.mu.-H)2MgC(Me)=CHMe] (4) complexes, and the [{Ti(.eta.5-C5Me4Ph)2(.eta.1-CCSiMe3)2}-{MgCl(THF)}+] (5) tweezer complex initiated the dimerization of (trimethylsilyl)ethyne (TMSE) or 1-hexyne (HXNY) to exclusively head-to-tail dimers at 60 C with the turnover number ranging 300 - 500 mol of the alkyne per one mol of the Ti complex. In contrast, all of them were inactive in the dimerization of tert.-butylethyne (TBUE). Monitoring of reactions of the 1 - 5 complexes with the alkynes by electron spin resonance (ESR) method revealed a decay of the initial complexes 1 - 5 in the dimerizing systems with TMSE and HXYN or a conversion of complexes 3,4 and 5. New phenyltetramethylcyclopentadienyl trinuclear titanocene hydride - magnesium hydride complexes [{Ti(.eta.5-C5Me4R)2(.mu.-H)2}2Mg], where R = Ph (1) or 4-fluorophenyl (FPh, 2), the dinuclear [Ti(.eta.5-C5Me4Ph)[.eta.5:.eta.1{Ti:Mg}-C5Me4(o-C6H4)](.mu.-H)2Mg(THF)2] (3) and [Ti(.eta.5-C5Me4Ph)2(.mu.-H)2MgC(Me)=CHMe] (4) complexes, and the [{Ti(.eta.5-C5Me4Ph)2(.eta.1-CCSiMe3)2}-{MgCl(THF)}+] (5) tweezer complex initiated the dimerization of (trimethylsilyl)ethyne (TMSE) or 1-hexyne (HXNY) to exclusively head-to-tail dimers at 60 C with the turnover number ranging 300 - 500 mol of the alkyne per one mol of the Ti complex. In contrast, all of them were inactive in the dimerization of tert.-butylethyne (TBUE). Monitoring of reactions of the 1 - 5 complexes with the alkynes by electron spin resonance (ESR) method revealed a decay of the initial complexes 1 - 5 in the dimerizing systems with TMSE and HXYN or a conversion of complexes 3,4 and 5. (en)
Title	Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes. Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes. (en)
skos:prefLabel	Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes. Linear Dimerization of Terminal Alkynes by Bis( tetramethylphenylcyclopentadienyl) Titanium-Magnesium Hydride and Acetylide Complexes. (en)
skos:notation	RIV/61388955:_____/03:54030167!RIV/2004/AV0/A54004/N
http://linked.open.../vavai/riv/strany	1877;1896
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/02/0436), P(GA203/02/0774), Z(AV0Z4040901), Z(MSM 113100001)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Petrusová, Lidmila Horáček, Michal Mach, Karel Kubišta, Jiří
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	613603
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/03:54030167
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	titanium; alkynes; hydrides (en)
http://linked.open.../riv/klicoveSlovo	titanium hydrides alkynes
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[DB60452CE08E]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Application of Crystallographic Databases in Scientific Practice Silicon-based ansa-titanocene complexes - synthesis, properties and catalytic activities
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	68
http://linked.open...iv/tvurceVysledku	Mach, Karel Gyepes, R. Horáček, Michal Kubišta, Jiří Petrusová, Lidmila
http://linked.open...n/vavai/riv/zamer	Objasňování zákonitostí vztahů struktury a vlastností - zejména dynamiky a chemické reaktivity - látek a molekulárních systémů http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20113100001
issn	0010-0765
number of pages	20 (xsd:int)

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