Results 71 to 80 of about 87,109 (183)
4,6-Dibromoisophthalic acid monohydrate
Acta Crystallographica Section E, 2012 In the crystal structure of the title hydrate, C8H4Br2O4·H2O, O—H...O hydrogen bonds link the molecules into a two-dimensional network parallel to (10-2).
Bao-fen Ye
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Characteristic Conformation of Mosher’s Amide Elucidated Using the Cambridge Structural Database
Molecules, 2015 Conformations of the crystalline 3,3,3-trifluoro-2-methoxy-2-phenylpropanamide derivatives (MTPA amides) deposited in the Cambridge Structural Database (CSD) were examined statistically as Racid-enantiomers. The majority of dihedral angles (48/58, ca. 83%
Akio Ichikawa, Hiroshi Ono, Yuji Mikata
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Methyl 9-diethylamino-2,2-bis(4-methoxyphenyl)-2H-benzo[h]chromene-5-carboxylate
Acta Crystallographica Section E, 2011 In the title compound, C31H29NO5, the methyl carboxylate and dimethylamino groups on the naphthopyran group are almost coplanar with the naphthopyran ring system [r.m.s.
Moon-Hwan Kim +2 more
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The real genus of cyclic by dihedral and dihedral by dihedral groups
Journal of Algebra, 2006 Every finite group acts as an automorphism group of several bordered compact Klein surfaces. The minimal genus of these surfaces is called the real genus. At first, the authors of this paper complete May's discussions about the real genus of groups \(C_m\times D_n\) (where \(C_m\) is a cyclic group).
Etayo Gordejuela, José Javier +1 more
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[2,7-Dimethoxy-8-(4-propylbenzoyl)naphthalen-1-yl](4-propylphenyl)methanone
Acta Crystallographica Section E, 2012 In the title compound, C32H32O4, the 4-propylbenzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost antiparallel, and their benzene rings make a dihedral angle of 8.64 (10)°.
Kosuke Sasagawa +4 more
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2,2′-{[2-(2-Chlorophenyl)-4-methylimidazolidine-1,3-diyl]bis(methylene)}diphenol
Acta Crystallographica Section E, 2013 In the title compound, C24H25ClN2O2, the 2-hydroxybenzyl substituents and the 2-chlorophenyl group occupy the sterically preferred equatorial positions, whereas the methyl group occupies the axial position.
Monika Kučeraková +4 more
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1-Acetyl-2-r,6-c-bis(4-chlorophenyl)-3-methyl-1,2,5,6-tetrahydropyridin-4-yl acetate
Acta Crystallographica Section E, 2010 In the title compound, C22H21Cl2NO3, the pyridine ring adopts a half-chair conformation and the 4-chlorophenyl groups occupy axial positions. The 4-chlorophenyl groups are almost perpendicular to the plane of the tetrahydropyridine ring forming dihedral ...
V. Vimalraj, K. Pandiarajan
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On schurity of dihedral groups
Journal of AlgebraA finite group $G$ is called a Schur group if every $S$-ring over $G$ is schurian, i.e. associated in a natural way with a subgroup of $Sym(G)$ that contains all right translations. One of the crucial questions in the $S$-ring theory is the question on schurity of nonabelian groups, in particular, on existence of an infinite family of nonabelian Schur ...
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Intertwining Operators Associated with Dihedral Groups [PDF]
Constructive Approximation, 2019 The Fourier analysis associated with reflection groups has attracted considerable attention. The purpose of this paper is to study intertwining operators associated with dihedral groups. The main result gives an integral representation for the intertwining operator on a class of functions. As an application, a closed form formula for the Poisson kernel
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IUCrData, 2018 In the title compound, C37H28BrClN8O, the linked chlorophenyl, pyrazolyl and thiazolyl ringss are almost coplanar, with dihedral angles of 0.6 (3)° between the chlorophenyl and pyrazolyl rings and 5.4 (3)° between the pyrazolyl and thiazolyl rings.
Gamal A. El-Hiti +5 more
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