Reactivity of Monomeric N -> Ge Coordinated Germanium(II) Hydrides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39915103" target="_blank" >RIV/00216275:25310/19:39915103 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ejic.201900154" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/ejic.201900154</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ejic.201900154" target="_blank" >10.1002/ejic.201900154</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reactivity of Monomeric N -> Ge Coordinated Germanium(II) Hydrides

Popis výsledku v původním jazyce

Monomeric organogermanium(II) hydrides {(LGeH)M(CO)(5)} (M = Cr (1), W (2), L = [2-(CH2NEt2)-4,6-tBu(2)-C6H2](-)) were treated with ortho-quinones and terminal alkyne HC equivalent to CCO2Me to give {[(LH)Ge(kappa(2)-O-2-3,5-tBu(2)C(6)H(2))]M(CO)(5)} (M = Cr (3), W (4)), {[(LH)Ge(kappa(2)-O-2-3,4,5,6-Cl4C6)]M(CO)(5)} (M = Cr (5), W (6)) and {[LGeCH=CH(COOMe)]Cr(CO)(5)} (11). These reactions proceeded as catalyst-free reductions of C=O and C equivalent to C bonds. Experimental data demonstrated zwitterionic character of Ge(II) complexes 3-6, where the 1,3,2-benzodioxagermylenolato anion involving the GeO2C2 five membered ring coordinates the M(CO)(5) fragment. This anionic part is compensated by the NHEt2 counter cation that is part of ligand L. Reactions of 1 and 2 differ mutually in the case of reduction of HC equivalent to CCO2Me. The experimental and theoretical data suggest that compound 1 reacts with HC equivalent to CCO2Me to give vinyl germylene 11 as the product of the anti-Markovnikov cis-1,2-addition, while complex 2 is inactive. These results thus suggest that the reactivity of the terminal GeH bond may be tuned by its coordination to various transition metals.

Název v anglickém jazyce

Reactivity of Monomeric N -> Ge Coordinated Germanium(II) Hydrides

Popis výsledku anglicky

Monomeric organogermanium(II) hydrides {(LGeH)M(CO)(5)} (M = Cr (1), W (2), L = [2-(CH2NEt2)-4,6-tBu(2)-C6H2](-)) were treated with ortho-quinones and terminal alkyne HC equivalent to CCO2Me to give {[(LH)Ge(kappa(2)-O-2-3,5-tBu(2)C(6)H(2))]M(CO)(5)} (M = Cr (3), W (4)), {[(LH)Ge(kappa(2)-O-2-3,4,5,6-Cl4C6)]M(CO)(5)} (M = Cr (5), W (6)) and {[LGeCH=CH(COOMe)]Cr(CO)(5)} (11). These reactions proceeded as catalyst-free reductions of C=O and C equivalent to C bonds. Experimental data demonstrated zwitterionic character of Ge(II) complexes 3-6, where the 1,3,2-benzodioxagermylenolato anion involving the GeO2C2 five membered ring coordinates the M(CO)(5) fragment. This anionic part is compensated by the NHEt2 counter cation that is part of ligand L. Reactions of 1 and 2 differ mutually in the case of reduction of HC equivalent to CCO2Me. The experimental and theoretical data suggest that compound 1 reacts with HC equivalent to CCO2Me to give vinyl germylene 11 as the product of the anti-Markovnikov cis-1,2-addition, while complex 2 is inactive. These results thus suggest that the reactivity of the terminal GeH bond may be tuned by its coordination to various transition metals.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA18-10222S" target="_blank" >GA18-10222S: Od jednoduchých prekurzorů k unikátním heterocyklům obsahující těžší prvky 15. skupiny</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

European Journal of Inorganic Chemistry

ISSN

1434-1948

e-ISSN

—

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

1884-1894

Kód UT WoS článku

000465098700005

EID výsledku v databázi Scopus

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