Synthesis and Characterization of Cyclometalated NHC Platinum Complexes with Chelating Carboxylate Ligands
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10395497" target="_blank" >RIV/00216208:11310/19:10395497 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XIFOio.TIL" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XIFOio.TIL</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejic.201900216" target="_blank" >10.1002/ejic.201900216</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Synthesis and Characterization of Cyclometalated NHC Platinum Complexes with Chelating Carboxylate Ligands
Popis výsledku v původním jazyce
Platinum(II) complexes [Pt((CC)-C-<^>*)(acac)], where (CC)-C-<^>* = 3-R-1-(phenyl-C-2)-1H-benzimidazol-2-ylidene-C-2 (R = Me, Ph) and acac = pentane-2,4-dionate, reacted with functionalized acetic acids YCH2CO2H (Y = NMe2, SMe and PPh2) with elimination of acetylacetone to produce the bis-chelate complexes of the type [Pt((CC)-C-<^>*)(YCH2CO2)]. Whereas the Pt(II) precursor with the less bulky methyl substituent (R) gave rise to single products having trans-C(NHC),Y geometry, its phenyl congener reacted less selectively, affording exclusively the product with trans-S,C(Ph) configuration for Y = SMe and mixtures of cis and trans isomers for Y = NMe2 and PPh2. These observations were well reproduced by different DFT functionals at the double- level of theory, which suggested rather small energy differences between the geometric isomers. The photophysical measurements showed that complexes [Pt((CC)-C-<^>*)(YCH2CO2)] are emissive in the blue region ((em) 460-490 nm) with photoluminescence quantum yields up to 36% and emission lifetimes in the range of 3-5 mu s.
Název v anglickém jazyce
Synthesis and Characterization of Cyclometalated NHC Platinum Complexes with Chelating Carboxylate Ligands
Popis výsledku anglicky
Platinum(II) complexes [Pt((CC)-C-<^>*)(acac)], where (CC)-C-<^>* = 3-R-1-(phenyl-C-2)-1H-benzimidazol-2-ylidene-C-2 (R = Me, Ph) and acac = pentane-2,4-dionate, reacted with functionalized acetic acids YCH2CO2H (Y = NMe2, SMe and PPh2) with elimination of acetylacetone to produce the bis-chelate complexes of the type [Pt((CC)-C-<^>*)(YCH2CO2)]. Whereas the Pt(II) precursor with the less bulky methyl substituent (R) gave rise to single products having trans-C(NHC),Y geometry, its phenyl congener reacted less selectively, affording exclusively the product with trans-S,C(Ph) configuration for Y = SMe and mixtures of cis and trans isomers for Y = NMe2 and PPh2. These observations were well reproduced by different DFT functionals at the double- level of theory, which suggested rather small energy differences between the geometric isomers. The photophysical measurements showed that complexes [Pt((CC)-C-<^>*)(YCH2CO2)] are emissive in the blue region ((em) 460-490 nm) with photoluminescence quantum yields up to 36% and emission lifetimes in the range of 3-5 mu s.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10402 - Inorganic and nuclear chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
European Journal of Inorganic Chemistry
ISSN
1434-1948
e-ISSN
—
Svazek periodika
Neuveden
Číslo periodika v rámci svazku
17
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
7
Strana od-do
2284-2290
Kód UT WoS článku
000471302400005
EID výsledku v databázi Scopus
2-s2.0-85064094747