INTRAMOLECULAR ALKOXIDE-TETHERED PERMETHYLTITANOCENE(III) COMPLEXES - SYNTHESIS AND CRYSTAL STRUCTURE.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A10000848" target="_blank" >RIV/00216208:11310/09:10000848 - isvavai.cz</a>

Alternative codes found

RIV/61388955:_____/09:00336720 RIV/62243136:_____/09:#0000056

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

INTRAMOLECULAR ALKOXIDE-TETHERED PERMETHYLTITANOCENE(III) COMPLEXES - SYNTHESIS AND CRYSTAL STRUCTURE.

Original language description

Singly tucked-in titanocene [Ti(III)(eta(5)-C5Me5)(eta(5):eta(1)-C5Me4CH2)] (1) reacted readily with di-tert-butyl ketone and 2,4,6-trimethylacetophenone to give permethyltitanocene derivatives [Ti( III)(eta(5)-C5Me5){eta(5)-C5Me4CH2C(t-Bu)(2)O-kappa O}](2) and [(Ti(III)(eta(5)-C5Me5){eta(5)-C5Me4CH2CMe(C6H2Me3)O-kappa O}] (3) with the tetramethylcyclopentadienyl ring tethered to the titanium atom by ethoxy group disubstituted at C-alpha. Crystal structures of 2 and 3 showed that the Ti-O bond is onlyslightly inclined to the tethered cyclopentadienyl ligand, and the bulky mesityl or tert-butyl substituents did not impose an observable steric hindrance into molecules of 2 and 3. Whereas the Ti-O bond lengths in 2 and 3 do not significantly differ, a higher wavenumber of the 1a(1) -> b(2) electronic transition for 2 (7326 cm(-1)) compared with that for 3 (6666 cm(-1)) indicates a more efficient oxygen-to-titanium pi-electron back donation in 2.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

Collection of Czechoslovak Chemical Communications

ISSN

0010-0765

e-ISSN

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Volume of the periodical

74

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

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UT code for WoS article

000265421100006

EID of the result in the Scopus database

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