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rdf:type
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Description
| - Paramagnetické titanocenové komplexy [Ti(?5-C5H5-nMen)2 (n = 5 (1), 4 (2), a 3 (3)) a Ti{Me2Si(?5-C5Me4)2} (4)] obsahující nenasycenou karbylovou skupinu která se skládá z jedné a půl molekuly 1,4-bis(trimethylsilyl)buta-1,3-diynu (BSD) byly připraveny redukcí titanocen dichloridů jedním ekvivalentem hořčíku v přítomnosti 1.5 molárního přebytku BSD v tetrahydrofuranu (THF). Nemethylovaná titanocenová sloučenina poskytuje za stejných podmínek jako hlavní produkt známý diamagnetický bis(?5-cyklopentadienyl)-2,4-bis (trimethylsilylethynyl)-3,5-bis (trimethylsilyl)titanacyklopenta-2,4-dien (5). Krystalové struktury komplexů 3 a 4 ukazují stejné vazebné schéma 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-ylového ligandu jako ve sloučenině 1. Sloučenina 1 je stabilní proti slabým proton donorům jako například methanolu nebo 1-alkinům dokonce i při 90 ?C, avšak podléhá zpětné reakci při oxidaci PbCl2 v THF, poskytující téměř kvantitativně BSD a [TiCl2(?5-C5Me5)2]. (cs)
- Paramagnetic titanocene complexes containing the unsaturated carbyl group which consists of one and half molecule of 1,4-bis(trimethylsilyl)buta-1,3-diyne (BSD) are formed by the reduction of titanocene dichlorides with one molar equivalent of magnesium in the presence of 1.5 molar equivalent BSD in tetrahydrofuran (THF) for titanocene moieties Ti(?5-C5H5-nMen)2 (n = 5 (1), 4 (2), and 3 (3)) and Ti{Me2Si(?5-C5Me4)2} (4). The non-methylated titanocene moiety affords under identical conditions known diamagnetic bis(?5-cyclopentadienyl)-2,4-bis (trimethylsilylethynyl)-3,5-bis (trimethylsilyl)titanacyclopenta-2,4-diene (5) as the major product. Crystal structures of 3 and 4 show the same bonding scheme for the 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-yl ligand as previously found for compound 1 [1].
- Paramagnetic titanocene complexes containing the unsaturated carbyl group which consists of one and half molecule of 1,4-bis(trimethylsilyl)buta-1,3-diyne (BSD) are formed by the reduction of titanocene dichlorides with one molar equivalent of magnesium in the presence of 1.5 molar equivalent BSD in tetrahydrofuran (THF) for titanocene moieties Ti(?5-C5H5-nMen)2 (n = 5 (1), 4 (2), and 3 (3)) and Ti{Me2Si(?5-C5Me4)2} (4). The non-methylated titanocene moiety affords under identical conditions known diamagnetic bis(?5-cyclopentadienyl)-2,4-bis (trimethylsilylethynyl)-3,5-bis (trimethylsilyl)titanacyclopenta-2,4-diene (5) as the major product. Crystal structures of 3 and 4 show the same bonding scheme for the 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-yl ligand as previously found for compound 1 [1]. (en)
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Title
| - Titanocene - 1,4,6-tris(trimethylsilyl)hex-3-one-1,5-diyne-3-yl complexes - Crystal Structures and their Retro Reaction
- Titanocene - 1,4,6-tris(trimethylsilyl)hex-3-one-1,5-diyne-3-yl complexes - Crystal Structures and their Retro Reaction (en)
- Titanocen - 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-ylové komplexy - krystalové struktury a jejich zpětné reakce (cs)
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skos:prefLabel
| - Titanocene - 1,4,6-tris(trimethylsilyl)hex-3-one-1,5-diyne-3-yl complexes - Crystal Structures and their Retro Reaction
- Titanocene - 1,4,6-tris(trimethylsilyl)hex-3-one-1,5-diyne-3-yl complexes - Crystal Structures and their Retro Reaction (en)
- Titanocen - 1,4,6-tris(trimethylsilyl)hex-3-ene-1,5-diyne-3-ylové komplexy - krystalové struktury a jejich zpětné reakce (cs)
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skos:notation
| - RIV/61388955:_____/04:00107622!RIV/2005/AV0/A54005/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/02/0436), P(GA203/02/0774), Z(AV0Z4040901)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/04:00107622
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - titanium; titanocene; 1,3-butadiyne (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - CH - Švýcarská konfederace
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Organometallic Chemistry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Císařová, I.
- Mach, Karel
- Horáček, Michal
- Kubišta, Jiří
- Spannenberg, A.
- Rosenthal, U.
- Dallman, K.
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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