Results 221 to 230 of about 456,294 (265)

Molecular Size and Conformation of Immunoglobulins

1970
Publisher Summary This chapter reviews studies on the higher levels of organization in immunoglobulin molecules such as their size and shape as well as the more intimate aspects of their internal folding. One of the most exciting problems in molecular biology is the elucidation of the relationship between the biological properties of immunoglobulins ...
K J, Dorrington, C, Tanford
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Molecular Conformation of Benzylideneanilines

Helvetica Chimica Acta, 1971
AbstractThe non‐planar conformations of benzylideneanilines and the almost planar conformations of stilbene and azobenzene are consistently reproduced by a simple model, which takes into account the dependence of π‐electron energy and non‐bonded interactions on molecular conformation. Other aspects of the molecular geometry of benzylideneanilines.(bond
H. B. Bürgi, J. D. Dunitz
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Molecular conformation of cyclenes

Journal of Molecular Structure, 1979
Abstract The strain energy of the most probable conformers of 1,3,6-cyclononatriene and 1,3,6-cyclodecatriene, which are asymmetrical compounds, has been calculated as a function of various geometrical parameters by means of the semiempirical Hendrickson's treatment, partially modified.
Giuseppe Buemi, Attanasio Nicolosi, Felice Zuccarello, Domenico Grasso   +3 more
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THE MOLECULAR CONFORMATION OF TRIPHENYLARSINE

Canadian Journal of Chemistry, 1964
not available
M. J. Aroney, R. J. W. Le Fèvre, J. D. Saxby   +2 more
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Singularities in Molecular Conformation

Crystal Growth & Design, 2015
The intramolecular coupling between molecular groups leads to singularities in the molecular conformation, acting like a switch in a molecular-scale rotor. This, in turn, affects the potential-energy (Ep) barriers, acquiring a sharp shape originating from superimposed Ep functions of the molecular conformers with differently coupled methyl groups.
Szymon Sobczak, Andrzej Katrusiak
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Conformational Molecular Rectifiers

Nano Letters, 2004
Unimolecular rectification based on voltage-controlled intramolecular stereochemical modification is suggested and computationally investigated. In sharp contrast to present molecular rectifiers, these conformational molecular rectifiers (CMRs) differ in principle from silicon structures, deriving their large, strongly temperature-dependent ...
Alessandro Troisi, Mark A. Ratner
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Molecular conformations of methotrexate

Journal of Molecular Structure: THEOCHEM, 1989
Abstract The molecular conformations of methotrexate were studied in detail by force field techniques.
Camillo Tosi, Roberto Fusco, Luciano Caccianotti   +2 more
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On Updating Torsion Angles of Molecular Conformations

Journal of Chemical Information and Modeling, 2005
A conformation of a molecule is defined by the relative positions of atoms and by the chirality of asymmetric atoms in the molecule. The three main representations for conformations of molecules are Cartesian coordinates, a distance geometry descriptor (which consists of a distance matrix and the signs of the volumes of quadruples of atoms), and ...
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Conformational analysis of levanbiose by molecular mechanics

Carbohydrate Research, 1992
A relaxed conformational energy map for levanbiose, O-beta-D-fructofuranosyl-(2----6)-beta-D-fructofuranoside, was computed with the molecular mechanics program MM2(87). All torsion angles of the three linkage bonds were driven by 30 degrees increments while two primary alcohol groups were held at three staggered forms.
J, Liu, A L, Waterhouse
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A molecular orbital study of the conformation of formycin

Journal of Theoretical Biology, 1974
Abstract Semiempirical quantum mechanical calculations, using the iterative extended Huckel theory, are carried out for the evaluation of conformational energies, dipole moment and net atomic charges as a function of the rotation about the glycosidic bond. Torsion about the C(4′)-C(5′) bond has also been considered. The energy diagrams for either the
D W, Miles, D L, Miles, H, Eyring
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