Zirconocene silanolate complexes and their heterogeneous siliceous analogues as catalysts for phenylsilane dehydropolymerization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F12%3A%230000191" target="_blank" >RIV/62243136:_____/12:#0000191 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/12:00375909 RIV/61388955:_____/12:00375909 RIV/62243136:_____/12:#0000246 RIV/00216208:11310/12:10127577 RIV/60461373:22310/12:43893490

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0920586111005256" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0920586111005256</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Zirconocene silanolate complexes and their heterogeneous siliceous analogues as catalysts for phenylsilane dehydropolymerization

Popis výsledku v původním jazyce

The efficient catalytic dehydropolymerization of phenylsilane by homogeneous zirconocene bissilanolates ([{(c-C5H9)7Si8O12O}2Zr(?5-C5H5)2] (1a); [{(c-C5H9)7Si8O12O}2Zr(?5-C5H4Bu)2] (1b) [{(c-C5H9)7Si7O9(OSiMe3)O2}Zr(?5-C5H5)2] (4); [{(Me3CO)3SiO}2Zr(?5-C5H5)2] (5)) and chlorosilanolates ([{(c-C5H9)7Si8O12O}ZrCl(?5-C5H4Bu)2] (2); ([{(c-C5H9)7Si7O9O3}Zr2Cl(?5-C5H5)4] (3a); [{(c-C5H9)7Si7O9O3}Zr2Cl(?5-C5H4Bu)4] (3b)) has been demonstrated. The presence of at least one silanol ligand in the zirconocene moiety was found essential for high catalytic performance. Solid state structure of complex 1a was determined by single crystal X-ray diffraction analysis. A series of nine zirconocene-siliceous catalysts were prepared by grafting of zirconocene moiety ontosilica using three general methods: (a) reaction of [(?5-C5H5)2ZrCl2] with silica in the presence of NEt3; (b) reaction of [(?5-C5H5)2ZrMe2] with silica; (c) reaction of solely [(?5-C5H5)2ZrCl2] with silica. Supported catalysts were chara

Název v anglickém jazyce

Zirconocene silanolate complexes and their heterogeneous siliceous analogues as catalysts for phenylsilane dehydropolymerization

Popis výsledku anglicky

The efficient catalytic dehydropolymerization of phenylsilane by homogeneous zirconocene bissilanolates ([{(c-C5H9)7Si8O12O}2Zr(?5-C5H5)2] (1a); [{(c-C5H9)7Si8O12O}2Zr(?5-C5H4Bu)2] (1b) [{(c-C5H9)7Si7O9(OSiMe3)O2}Zr(?5-C5H5)2] (4); [{(Me3CO)3SiO}2Zr(?5-C5H5)2] (5)) and chlorosilanolates ([{(c-C5H9)7Si8O12O}ZrCl(?5-C5H4Bu)2] (2); ([{(c-C5H9)7Si7O9O3}Zr2Cl(?5-C5H5)4] (3a); [{(c-C5H9)7Si7O9O3}Zr2Cl(?5-C5H4Bu)4] (3b)) has been demonstrated. The presence of at least one silanol ligand in the zirconocene moiety was found essential for high catalytic performance. Solid state structure of complex 1a was determined by single crystal X-ray diffraction analysis. A series of nine zirconocene-siliceous catalysts were prepared by grafting of zirconocene moiety ontosilica using three general methods: (a) reaction of [(?5-C5H5)2ZrCl2] with silica in the presence of NEt3; (b) reaction of [(?5-C5H5)2ZrMe2] with silica; (c) reaction of solely [(?5-C5H5)2ZrCl2] with silica. Supported catalysts were chara

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

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Svazek periodika

179

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

130-139

Kód UT WoS článku

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EID výsledku v databázi Scopus

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