Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Dieter Heymann"'
Autor:
Dieter Heymann
Rheine, 30. Januar 1934: In der westfälischen Kleinstadt finden zum Jahrestag der Ernennung Adolf Hitlers zum Reichskanzler Feierlichkeiten statt, an denen sich auch die örtliche SA mit einem Fackelzug beteiligt. Nach dem feuchtfröhlichen Ausklang
Autor:
Dieter Heymann1, Leonardus W. Jenneskens2, Jan Jehlicka3, Carola Koper2, Edward J. Vlietstra2
Publikováno v:
International Journal of Astrobiology. Jul2003, Vol. 2 Issue 3, p179-183. 5p.
Autor:
L. P. Felipe Chibante, Dieter Heymann
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 112:531-534
The reactions of C60 and C70, dissolved in toluene, with ozone at 100, 23.5, 0. - 16, and - 78°C are reported. Both fullerenes are transformed swiftly at all of these temperatures. Both fullerenes form monoxides, dioxides and possibly higher oxides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45b949894f1488807d25edaea8a4c71
https://doi.org/10.1002/recl.19931121004
https://doi.org/10.1002/recl.19931121004
Autor:
Dieter Heymann
Publikováno v:
The Astrophysical Journal. 679:1665-1669
The photolysis of C10H2 in air-saturated hexane by 253.6 nm photons yields the polyyne C8H2 in approximately 5% of all C10H2 disappearances; perhaps due to the migration of the hydrogen atom on Γ1 (I use the symbol Γn to designate the specific carb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::984bce60883b1bf2ba9ca3de40e56c5f
https://doi.org/10.1086/525515
https://doi.org/10.1086/525515
Autor:
Dieter Heymann
Publikováno v:
International Journal of Astrobiology. 6:217-221
The photolysis of dilute solutions of octacyclosulphur or hexacyclosulphur in n-hexane with 253.6 nm UV radiation produces S and possibly S2. The ‘ring-opening’ yields of these sulphur molecules range from 0.2 to 0.7. When the hydrogen end-capped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a2d972d20788b84149f5e8c3011ecb2
https://doi.org/10.1017/s1473550406002904
https://doi.org/10.1017/s1473550406002904
Autor:
R. Bruce Weisman, Dieter Heymann
Publikováno v:
Comptes Rendus Chimie. 9:1107-1116
Oxygen adducts were among the first reported fullerene derivatives, and they have continued to be the subject of many subsequent investigations by experimental and theoretical researchers. A literature survey is presented summarizing the preparation,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a0a49838bf7d6f5be2eab67ccb4ab36
https://doi.org/10.1016/j.crci.2006.02.003
https://doi.org/10.1016/j.crci.2006.02.003
Autor:
Dieter Heymann
Publikováno v:
Carbon. 43:2235-2242
The mean lifetimes of polyyne C 8 H 2 in hexane were determined at 50, 60, 80, and 100 °C and in methanol at 60 °C. The reactions are second order at all temperatures: ln k 2 = 20.5 ± 1.5–10303 ± 520 T −1 and the corresponding activation ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d0b07013b1203d69fe32417fe785949
https://doi.org/10.1016/j.carbon.2005.03.038
https://doi.org/10.1016/j.carbon.2005.03.038
Publikováno v:
Fullerenes, Nanotubes and Carbon Nanostructures. 13:73-88
Ozonation of C60 in o‐xylene produced three C60(O3)2 diozonides that were separated from one another and from two C60(O3)3 triozonides by High Performance Liquid Chromatography (HPLC). Upon thermolysis at 10, 15, and 16.6°C, each of the diozonides
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ee5106a59792990d036dc165f5a0ad9
https://doi.org/10.1081/fst-200040764
https://doi.org/10.1081/fst-200040764
Publikováno v:
Fullerenes, Nanotubes and Carbon Nanostructures. 12:659-680
A transmission electron microscope (TEM) study of individual soot grains forming fluffy carbon particles produced using the arc‐discharge technique revealed close‐packed arrangements of single‐wall ring structures with average diameters of 0.7,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b2eda5661023129e3b0f7690d8fb93e
https://doi.org/10.1081/fst-200026954
https://doi.org/10.1081/fst-200026954
Autor:
Dieter Heymann
Publikováno v:
Fullerenes, Nanotubes and Carbon Nanostructures. 12:715-729
This paper presents a literature review of studies of ozonides and oxides of C60 and C70.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca665ee7259f426f6cbe263b0f47a709
https://doi.org/10.1081/fst-200032870
https://doi.org/10.1081/fst-200032870