Less Is More: Three-Coordinate C,N-Chelated Distannynes and Digermynes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39900604" target="_blank" >RIV/00216275:25310/15:39900604 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/chem.201500695" target="_blank" >http://dx.doi.org/10.1002/chem.201500695</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.201500695" target="_blank" >10.1002/chem.201500695</a>

Result language
angličtina
Original language name
Less Is More: Three-Coordinate C,N-Chelated Distannynes and Digermynes
Original language description
We report here the synthesis of new C,N-chelated chlorostannylenes and germylenes (LMCl)-M-3 (M=Sn(1), Ge (2)) and (LMCl)-M-4 (M=Sn(3), Ge (4)) containing sterically demanding C,N-chelating ligands L-3,L-4 (L-3=[2,4-di-tBu-6-(Et2NCH2)C6H2](-)(;) L-4=[2,4-di-tBu-6-{(C6H3-2,6-iPr(2))N=CH}C6H2](-)). Reductions of 1-4 yielded three-coordinate C,N-chelated distannynes and digermynes [(LM)-M-3,4](2) for the first time (5: L-3, M=Sn, 6: L-3, M=Ge, 7: L-4, M=Sn, 8: L-4, M=Ge). For comparison, the four-coordinate distannyne [(LSn)-Sn-5](2) (10) stabilized by N,C,N-chelate L-5 (L-5=[2,6-{(C6H3-2,6-Me-2)NCH}(2)C6H3](-)) was prepared by the reduction of chlorostannylene (LSnCl)-Sn-5 (9). Hence, we highlight the role of donor-driven stabilization of tetrynes. Compounds 1-10 were characterized by means of elemental analysis, NMR spectroscopy, and in the case of 1, 2, 5-7, and 10, also by single-crystal X-ray diffraction analysis. The bonding situation in either three- or four-coordinate distannynes
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/GA15-07091S" target="_blank" >GA15-07091S: Uncatalyzed Hydrosilylations Induced by N→Si Coordination</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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