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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Reactivity of Monomeric N -> Ge Coordinated Germanium(II) Hydrides
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/GA18-10222S" target="_blank" >GA18-10222S: From simple precursors to unprecedented heterocyclic systems containing heavier Group 15 elements</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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