Sunlight photolysis of cyclopentadienyl–tethered titanium(iv) permethyltitanocene chlorides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00532837" target="_blank" >RIV/61388955:_____/20:00532837 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/20:10417243

Výsledek na webu

<a href="http://hdl.handle.net/11104/0311221" target="_blank" >http://hdl.handle.net/11104/0311221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jorganchem.2020.121536" target="_blank" >10.1016/j.jorganchem.2020.121536</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sunlight photolysis of cyclopentadienyl–tethered titanium(iv) permethyltitanocene chlorides

Popis výsledku v původním jazyce

Solutions of permethylcyclopentadienyl-tethered titanium(IV) chlorides incorporating one double bond in their tethers were exposed in glass vessels to sunlight, which triggered their photolytical reactions providing mixtures of products. Although the formation of several different products was apparent from 1H NMR spectra, only a single product could be identified in the crude reaction mixtures. This product was dicyclopentadiene [C10Me10], which arose from the recombination of the generally photodissociated C5Me5 radical. Amongst products that contained titanium, three complexes (3a, 3b and 4a) could be isolated after employing fractional crystallization and these complexes were characterized. The mechanism of 3a formation involves photodissociation of one η5-C5Me5 ligand from the parent complex, complemented by chlorine abstraction from another reactant molecule. Complexes 3b and 4a become formed via tether rearrangement, which starts with dissociating the tether Ti–C bond and is followed by rotating the tether, reattaching it subsequently through its available radical terminus.

Název v anglickém jazyce

Sunlight photolysis of cyclopentadienyl–tethered titanium(iv) permethyltitanocene chlorides

Popis výsledku anglicky

Solutions of permethylcyclopentadienyl-tethered titanium(IV) chlorides incorporating one double bond in their tethers were exposed in glass vessels to sunlight, which triggered their photolytical reactions providing mixtures of products. Although the formation of several different products was apparent from 1H NMR spectra, only a single product could be identified in the crude reaction mixtures. This product was dicyclopentadiene [C10Me10], which arose from the recombination of the generally photodissociated C5Me5 radical. Amongst products that contained titanium, three complexes (3a, 3b and 4a) could be isolated after employing fractional crystallization and these complexes were characterized. The mechanism of 3a formation involves photodissociation of one η5-C5Me5 ligand from the parent complex, complemented by chlorine abstraction from another reactant molecule. Complexes 3b and 4a become formed via tether rearrangement, which starts with dissociating the tether Ti–C bond and is followed by rotating the tether, reattaching it subsequently through its available radical terminus.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Organometallic Chemistry

ISSN

0022-328X

e-ISSN

—

Svazek periodika

927

Číslo periodika v rámci svazku

NOV 2020

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

121536

Kód UT WoS článku

000579416000008

EID výsledku v databázi Scopus

2-s2.0-85091653258