Zobrazeno 1 - 10 of 214 pro vyhledávání: '"JOHANNES DALE"'
4
Conformations and conformational processes of pelargolactam
Autor: Gerd Borgen, Johannes Dale, Frode Rise, Lise-Lotte Gundersen
Publikováno v: Magnetic Resonance in Chemistry. 33:252-255
Pelargolactam (1-azacyclodecan-2-one) was studied by 1H and 13C NMR spectroscopy in solution between 25 and −145°C. Equilibrium solutions of pelargolactam at 25°C consist mainly of the trans isomer together with 5–10% of the cis isomer. Solid p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ffe93716da7e6b0a5cee6843495c54b
https://doi.org/10.1002/mrc.1260330405
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5
Conformations and conformational interconversions of enantholactam
Autor: Gerd Borgen, Johannes Dale, Frode Rise
Publikováno v: Magnetic Resonance in Chemistry. 31:855-858
The conformational properties of enantholactam (1-azacyclooctane-2-one) in solution were studied by 1H and 13C NMR at various temperatures. Only the cis-isomer is present and it occurs in two different conformations in the ratio 3:2, as observed by 1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbde3d19438e90e7e1d414bb9c4f0877
https://doi.org/10.1002/mrc.1260310912
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7
12-Crown-3 Type Li+ Complexes: Structures of 3,3-Dimethyl-1,5,9-trioxacyclododecane Lithium Perchlorate and 3-Methoxymethyl-3-methyl-1,5,9-trioxacyclododecane Lithium Perchlorate Hemihydrate
Autor: Bernard Tinant, Jean-Paul Declercq, Siw B. Fredriksen, Johannes Dale, Björn O. Roos, Pekka Pietikäinen, Harri Setälä, Marit Trætteberg, Ahmad Nasiri, Tadashi Tsuda
Publikováno v: Acta Chemica Scandinavica. 47:663-667
The crystal structures of the two title Li+ complexes, C-11 H22 O3 . LiClO4 (III) and C-12 H24 O4 . LiClO4 . 0.5H2O (IV), have been determined by X-ray diffractometry. The structure of III was refined to R = 0.080 for 1214 observed reflections, that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c49790354b1a7c19b54e0eb882e5335
https://doi.org/10.3891/acta.chem.scand.47-0663
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