- Chemiluminescent reactions of ground and metastable states of the group IV a elements with halogens
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Earlier work on chemiluminescent beam-gas reactions of the ground states (3Pj) of Si, Ge, and Sn with F2 and of both ground and metastable states (1D, 1S) of Sn with Cl 2, Br2, and I2 is extended to include reactions of both ground and metastable states of Si, Ge, and Sn with F2, Cl2, Br2, I2, and ICl. Chemiluminescent products of metal halides and/or dihalides were observed in all of these reactions, although attempts to observe that in the similar reactions of Pb were unsuccessful. In ICl reactions with Si, Ge, and Sn, both monochloride and dichloride emission occurs, confirming the previously proposed mechanism for creating dihalide emission in Sn reactions with Br2 and I2 via a monohalide intermediate.
- Wang,Cheong,Parson
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p. 2834 - 2839
(2007/10/02)
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- ASSISTANCE NUCLEOPHILE DANS DES REACTIONS DE REDUCTION D'ORGANOHALOGENO- ET HALOGENO-GERMANES PAR DES REDUCTEURS DOUX R3M(IVB)-H ET RCHO: GERMYLANIONS, DERIVES FONCTIONNELS DU GERMANIUM
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Catalytic activity of nuclophiles such as tertiary amines and diazo derivatives in the reduction of halogermanes by means of gentle reductive agents, such as R3M(IVB)-H or RCHO, has been shown.In the particular case of enolisable aldehyde, a competition between nucleophilic substitution at the metal and germanium-halogen bond reduction has been observed.Transposition of enoxygermanes formed through the substitution process, leads to β-germylaldehydes.
- Castel, A.,Riviere, P.,Satge, J.
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p. 137 - 146
(2007/10/02)
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