1,721,975 research outputs found
H. Hofmann (Ed.), Groningen Colloquia on the Novel. Vol. IV
No full textDonnet Daniel. H. Hofmann (Ed.), Groningen Colloquia on the Novel. Vol. IV. In: L'antiquité classique, Tome 62, 1993. pp. 296-297
H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel
No full textDonnet Daniel. H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel. In: L'antiquité classique, Tome 70, 2001. pp. 255-256
H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel VIII
No full textDonnet Daniel. H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel VIII. In: L'antiquité classique, Tome 68, 1999. p. 382
On the conformational structure of amrinone and milrinone
No full textBased on the ab initio STO-3G method including geometry optimization, a conformational analysis of the bipyridine cardiotonics amrinone and milrinone was performed. The results indicate a considerably twisted structure for both molecules. The higher rotation and, above all, the limited conformational flexibility of milrinone are suggested to be of significant importance in explaining its greater cardiotonic potency compared with amrinone
Revival of an old structure problem: Trithiapentalene - real or time-averaged C2v symmetry?
No full textThe structures of 1, 6,6a\Lambda4-trithiapentalene la and the related compounds 1, 6-dioxa-6a\Lambda44-thiapentalenel b and
I,6-diaza-6ah4-thiapentaleneI C were examined on the basis of ab initio MO theory employing the 3-21G(*) and 6-31G* basis
sets. In case of the trithia and dioxathia molecules, the bridged C, structures appear as most stable arrangements when the
correlation energy is considered, whereas the corresponding open C, forms are preferred at the SCF level. The same conclusions
can be drawn for the 1,6-disubstituted diazathiapentalenes. Contrary to this, structure 4 with an aromatic isothiazole ring
is the most stable form for the unsubstituted compounds
Conformation Dynamics of 1,2-Dimethylenecyclohexane: A Model for Ring-A Mobility in Vitamins D
No full textThe conformation dynamics of 1,2-dimethylenecyclohexane
was examined by means of ab initio MO theory employing the
STO-3G and 3-21G basis sets. The calculations show that the most
economic mode of chair-chair interconversion begins with
inversion of twist angles in the diene part of the chair-like minimum conformation and proceeds via pseudorotation and
reinversion to the alternate chair. The results are discussed in
relation to the ring A structure and mobility of vitamins D
84. Groningen colloquia on the novel, vol. I, papers edited by H. Hofmann
No full textCauderlier Patrice. 84. Groningen colloquia on the novel, vol. I, papers edited by H. Hofmann. In: Revue des Études Grecques, tome 103, fascicule 490-491, Janvier-juin 1990. p. 345
84. Groningen colloquia on the novel, vol. I, papers edited by H. Hofmann
No full textCauderlier Patrice. 84. Groningen colloquia on the novel, vol. I, papers edited by H. Hofmann. In: Revue des Études Grecques, tome 103, fascicule 490-491, Janvier-juin 1990. p. 345
68. Groningen Colloquia on the Novel. Volume III. Papers edited by H. Hofmann
No full textBillault Alain. 68. Groningen Colloquia on the Novel. Volume III. Papers edited by H. Hofmann. In: Revue des Études Grecques, tome 104, fascicule 497-499, Juillet-décembre 1991. pp. 655-656
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