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English to German translations [PRO]
Science - Chemistry; Chem Sci/Eng / term list | | English term or phrase: abstraction pathway | From a terminology list, with only very little context.
Also obtain vibrational frequencies for both the unsubstituted and the deuterium-substituted radical and calculate zero point energies for the two *abstraction pathways* (you already have zero point energies for HCl and DCl).
Thanks in advance for any help. |
|   Manuela JunghansKudoZ activityQuestions: 339 (none open) ( 10 without valid answers) ( 32 closed without grading) Answers: 986
United Kingdom
| | Local time: 01:18
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| | ... für den Ablauf der zwei Abspaltungen | Explanation:
Abstract
Die Alkyldichlorphosphane H3CPCl2, ClH2CPCl2, (H3C)H2CPCl2 und (H3C)2HCPCl2 spalten bei Erhitzen im Gasstrom unter vermindertem Druck HCl ab. PE-spektroskopische Gasanalyse belegt, daß hierbei die kurzlebigen Phosphaalkene H2CPCl, (H3C)HCPCl und - katalysiert durch [MgCl2MgO/SiO2] - (H3C)2CPCl sowie die Phosphaalkine HCP und (H3C)CP entstehen, die alle durch Auskondensation bei tiefer Temperatur in Substanz isoliert werden können. Ausgehend von den aufgezeichneten Ionisierungsmustern und den zu ihrer Zuordnung durchgeführten MNDO-Berechnungen werden die CP-Mehrfachbindungen diskutiert. Der mutmaßliche ***Ablauf der HCl-Abspaltung*** wird für (H3C)H2CPCl2 anhand einer näherungsweise berechneten MNDO-Energiehyperfläche erläutert.
Langenscheidt WB Technik und angewandte Wissenschaften bietet für abstraction: Abspaltung und für elimination: Abspaltung ...
Translated Abstract
Gasphase Reactions. 92 Thermal Elimination of HCl from Alkyldichlorophosphanes (H3C/H)3CPCl2 to Phosphaalkenes (H3C/H)2CPCl and Phosphaalkines (H3C/H)CP
The alkyldichlorophosphanes H3CPCl2, ClH2PCl2, (H3C)H2CPCl2 and (H3C)2HCPCl2 split off HCl on heating in a gasflow under reduced pressure. PE spectroscopic gas analysis proves that under these conditions the short-lived phosphaalkenes H2CPCl, (H3C)H2CPCl and - catalyzed by [MgCl2MgO/SiO2] - (H3C)2CPCl as well as the phosphaalkines HCP and (H3C)CP are formed, all of which can be isolated by low temperature condensation. Based on the PES ionization patterns recorded and on the MNDO calculations for their assignment, the CP multiple bonds are discussed. The presumable ***pathway of the HCl elimination*** is rationalized for (H3C)H2CPCl2 by an approximate MNDO energy hypersurface. |
| Selected response from:
Brie Vernier
Germany
Local time: 02:18
| Grading comment Danke.
4 KudoZ points were awarded for this answer |
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| Discussion entries: 0 |
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Automatic update in 00:
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2 hrs confidence:   ... für den Ablauf der zwei Abspaltungen
Explanation:
Abstract
Die Alkyldichlorphosphane H3CPCl2, ClH2CPCl2, (H3C)H2CPCl2 und (H3C)2HCPCl2 spalten bei Erhitzen im Gasstrom unter vermindertem Druck HCl ab. PE-spektroskopische Gasanalyse belegt, daß hierbei die kurzlebigen Phosphaalkene H2CPCl, (H3C)HCPCl und - katalysiert durch [MgCl2MgO/SiO2] - (H3C)2CPCl sowie die Phosphaalkine HCP und (H3C)CP entstehen, die alle durch Auskondensation bei tiefer Temperatur in Substanz isoliert werden können. Ausgehend von den aufgezeichneten Ionisierungsmustern und den zu ihrer Zuordnung durchgeführten MNDO-Berechnungen werden die CP-Mehrfachbindungen diskutiert. Der mutmaßliche ***Ablauf der HCl-Abspaltung*** wird für (H3C)H2CPCl2 anhand einer näherungsweise berechneten MNDO-Energiehyperfläche erläutert.
Langenscheidt WB Technik und angewandte Wissenschaften bietet für abstraction: Abspaltung und für elimination: Abspaltung ...
Translated Abstract
Gasphase Reactions. 92 Thermal Elimination of HCl from Alkyldichlorophosphanes (H3C/H)3CPCl2 to Phosphaalkenes (H3C/H)2CPCl and Phosphaalkines (H3C/H)CP
The alkyldichlorophosphanes H3CPCl2, ClH2PCl2, (H3C)H2CPCl2 and (H3C)2HCPCl2 split off HCl on heating in a gasflow under reduced pressure. PE spectroscopic gas analysis proves that under these conditions the short-lived phosphaalkenes H2CPCl, (H3C)H2CPCl and - catalyzed by [MgCl2MgO/SiO2] - (H3C)2CPCl as well as the phosphaalkines HCP and (H3C)CP are formed, all of which can be isolated by low temperature condensation. Based on the PES ionization patterns recorded and on the MNDO calculations for their assignment, the CP multiple bonds are discussed. The presumable ***pathway of the HCl elimination*** is rationalized for (H3C)H2CPCl2 by an approximate MNDO energy hypersurface.
Reference: http://www3.interscience.wiley.com/cgi-bin/abstract/10978468...
| Brie Vernier
Germany
Local time: 02:18
Specializes in field
Native speaker of: English
PRO pts in category: 39
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