Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Dieter Henneberg"'
Publikováno v:
Organic Mass Spectrometry. 28:198-206
For databases containing spectra and structures of the reference compounds, structural descriptors (‘fragments’) have been derived that are used for structure searches in the databases. The 190 fragments have been defined according to the content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::babf7ca7d9f772f763059d3ec8ba43c0
https://doi.org/10.1002/oms.1210280311
https://doi.org/10.1002/oms.1210280311
Publikováno v:
Justus Liebigs Annalen der Chemie. 1975:145-159
Die Additionsrichtung von Tri-tert.-butylaluminium (l), tert.-Butylmagnesiumchlorid (4), tert.-Butyllithium (6), Tri-2-propylaluminium (3), 2-Propylmagnesiumchlorid (5) und 2-Propyllithium (7) an 1-Octen (2) als typischem 1-Alken wurde studiert. Wahr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a3b0f8ebb9fce68eb6161d33eaeb240
https://doi.org/10.1002/jlac.197519750114
https://doi.org/10.1002/jlac.197519750114
Publikováno v:
Justus Liebigs Annalen der Chemie. 1975:119-144
Es wird die Addition von in 1- und/oder 3-Stellung substituierten Allylmagnesiumverbindungen (ClMgCHR3CHCRlR2; 1 -4)an Olefine (CH2CHR4; 8,13,20,27) im Temperaturbereich 20- 130°C in polaren und unpolaren Reaktionsmedien untersucht. Die 3-Alkyl-2-pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa5182155ee00dc02f568464ac68108b
https://doi.org/10.1002/jlac.197519750113
https://doi.org/10.1002/jlac.197519750113
Autor:
Herbert Lehmkuhl, Dieter Henneberg, Wolfgang Bergstein, Otto Olbrysch, Dieter Reinehr, Gerhard Schomburg, Edo Janssen
Publikováno v:
Justus Liebigs Annalen der Chemie. 1975:1176-1194
Es wird die Additionsrichtung von 2-Alkenyl-, Benzyl-, sek.- und tert.-Alkylmagnesiumhalogeniden 1- an 1-Alkene untersucht und eine Abhangigkeit des Verhaltnisses von (Metall-an-C-2-)- zu (Metall-an-C-1)-Addition von Groβe und Richtung der induktive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f793435451aa6cf9b816d71ec51429d
https://doi.org/10.1002/jlac.197519750616
https://doi.org/10.1002/jlac.197519750616
Publikováno v:
Analytica Chimica Acta. 150:37-44
The SISCOM mass spectra library search is mainly an interpretative system producing a “hit list” of similar spectra based on six comparison factors. This paper deals with extension of the system; the aim is exact identification (retrieval) of tho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7f218b09f144d593a8844706c53c532
https://doi.org/10.1016/s0003-2670(00)85457-4
https://doi.org/10.1016/s0003-2670(00)85457-4
Publikováno v:
Organic Mass Spectrometry. 12:772-776
Aldosuloses and dialdoses are readily converted to the corresponding acyclic methyloxime trimethylsilyl derivatives which give characteristic mass spectra. The gas chromatography mass spectrometry coupling technique also allows trace analysis since f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::211594b89260fcb590f46857ab534753
https://doi.org/10.1002/oms.1210121214
https://doi.org/10.1002/oms.1210121214
Autor:
Herbert Lehmkuhl, Paul Heimbach, Edo Janssen, Gerhard Schomburg, Dieter Henneberg, Günther Wilke
Publikováno v:
Justus Liebigs Annalen der Chemie. 1975:1667-1676
In Konkurrenzversuchen zeigen [Do]- und [D6]Butadien an Nickelkatalysatoren annahernd gleiche Reaktivitat. An „nacktem” Nickel entstehen all-trans-,trans,trans,cis- und trans,cis,cis- Cyclododecatriene mit 0, 6, 12 bzw. I 8 Deuteriumatomen etwa i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e16353800372d639da442cb812f4d6d1
https://doi.org/10.1002/jlac.197519750914
https://doi.org/10.1002/jlac.197519750914
Publikováno v:
Journal of Chromatography A. 167:139-147
A new version of an open-split type of gas chromatograph-mass spectrometer interface with a glass restriction has been developed, with particular emphasis upon the use of glass capillary columns. A flow of scavenger gas is provided in the interface,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd856042494667f9bc530ba6c340eb40
https://doi.org/10.1016/s0021-9673(00)91153-1
https://doi.org/10.1016/s0021-9673(00)91153-1
Publikováno v:
Zeitschrift für Naturforschung B. 30:416-425
In the γ-radiolysis of deoxygenated N2O-saturated aqueous solutions of D-glucose (10-2 M, 1 · 1019 - 4 · 1019 eV/g, dose rate 4.3 · 1018 eV/g · h at 25°C), the following products have been identified: Gluconic acid (1), 2-deoxy-gluconic acid (2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28408abb7d8267724d21dbcc358f9edd
https://doi.org/10.1515/znb-1975-5-622
https://doi.org/10.1515/znb-1975-5-622
Autor:
L. Domokos, Dieter Henneberg
Publikováno v:
Analytica Chimica Acta. 165:75-86
The identification of unknown pure compounds or mixtures by means of mass spectral library search can be improved by partly resolving the spectra of the individual components within the spectrum of the measured unknown. This is accomplished by invest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26285ad1b517ac688425939eafbaf03b
https://doi.org/10.1016/s0003-2670(00)85187-9
https://doi.org/10.1016/s0003-2670(00)85187-9