Combined Quantum Chemical and Mass Spectrometry Study of [Ge,C,H]+ and Its Neutral Counterpart
✍ Scribed by Phillip Jackson; Martin Diefenbach; Detlef Schröder; Helmut Schwarz
- Book ID
- 101280747
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 248 KB
- Volume
- 1999
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
The cation [Ge,C,H] + has been generated by the electron than the global minimum. For the neutral, a doublet ( 2 π) with Ge-C-H connectivity is predicted to be the global minimum. ionisation of trichloromethylgermane. Collisional activation experiments were used to establish a Ge-C-H connectivity
The classical barrier for the neutral 1,2-hydrogen shift reaction on the doublet surface is negligible (0.1 kcal mol -1 ), in this species, for which a significant fraction of the ion population was found to survive neutralisation-reionisation while the smallest barrier for the cation is 13.0 kcal mol -1 , corresponding to ( 3 AЈЈ) HGeC + Ǟ ( 3 Σ) GeCH + . Natural bond mass spectrometry (NRMS) experiments. Thus, the neutral counterpart [Ge,C,H] 0 is stable on a microsecond timescale. order analysis has been used to establish the order of the metal-carbon bond for selected states of both the neutral and Becke's 3 parameter hybrid density functional (B3LYP) was used to map the ion and neutral potential-energy surfaces, in the ion. Neutral and cationic isomers with Ge-C triple bonds were found to be high-energy excited states, with the metal-conjunction with double-zeta and triple-zeta basis sets. The computational results obtained using the triple-zeta basis carbon bonds in the cation and neutral ground states of order 2.0 and 2.5, respectively. The instability of Ge-C triple sets suggest that, for the cation, the global minimum is the high spin 3 Σ GeCH + , with the first Ge-C-H excited state, 1 Σ bonded species is attributed to the energy required for electronic promotion in the metal in order to achieve a hybrid GeCH + , approximately 39 kcal mol -1 less stable. The lowest energy ion structure with H-Ge-C connectivity is bent configuration suitable for the formation of such a bond.
📜 SIMILAR VOLUMES
Five different anionic [C 3 ,H 4 ,O] •Ϫ isomers, i.e. the radical level of theory. For some species, notably the singlet state of oxyallyl, the theoretical treatment is complemented by G2, anions of acrolein, acetyl carbene, formyl methyl carbene, methoxy vinylidene, and oxyallyl are generated in an