Now showing items 31-40 of 41
Spectroscopic studies of Lewis acid-base complexes : Part V. Raman and infrared spectra, assignments and normal coordinate analysis for difluorophosphine borane
(Elsevier, 1982-11)
Raman spectra of five isotopic species of HPF2BH3 have been obtained in the liquid and solid states together with infrared spectra of the same species in the gaseous and solid states. Vibrational assignments have been made ...
Magnesium oxide as a catalyst support: The influence of chlorine
(Elsevier, 1982-07-01)
The properties of MgO when used as a support material for Ru-Au catalysts have been investigated by thermal analysis, chemical analysis, surface area measurements and X-ray diffraction. During impregnation the support ...
Demonstration that bovine erythrocyte cytochrome b5 is the hydrophilic segment of liver microsomal cytochrome b5
(Elsevier, 1982-07-26)
A structural comparison has been made between bovine erythrocyte cytochrome b5 and solubilized forms of bovine hepatic microsomal cytochrome b5. Two soluble forms of microsomal cytochrome b5 (designated Forms A and B) were ...
Vibrational analysis of peptides, polypeptides, and proteins. XV. Crystalline polyglycine II
(Wiley Subscription Services, Inc., A Wiley Company, 1982-12)
A force field has been refined for the 3 1 -helix structure of polyglycine II, using the polyglycine I force field plus previous C Α H Α ...O force constants as a starting point. Besides force constants associated with the ...
Vaporization and thermodynamic properties of samarium dicarbide and sub-stoichiometric disamarium tricarbide
(Elsevier, 1982-11)
The vaporization reactions of SmC2(s) and Pu2C3-type SmCy(s, 1.36 y SmC2(s) = 2C(s)+Sm(g){2/(2-y)}SmCy(s) = {y/(2-y)}SmC2(s)+Sm(g)The complex reaction for SmCy occurs because the composition of the carbon-rich boundary of ...
Carbon-13 and silicon-29 NMR spectra of some [tris(trimethylsilyl)methyl]-substituted silanes and related compounds
(Elsevier, 1982-08-24)
Fourier Transform 13C and 29Si NMR spectra are reported for series of [tris-(trimethylsilyl)methyl] dimethylsilanes, [tris(trimethylsilyl)methyl] diphenylsilanes, and for related compounds. Analysis of chemical shift values ...
Micellization and intermicellar interactions in aqueous sodium dodecyl benzene sulfonate solutions
(Elsevier, 1982-12)
Quasielastic light scattering was used to investigate the size and shape of sodium dodecyl benzene sulfonate (SDBS) micelles in aqueous solutions. Measurements were made as a function of temperature and NaCl and SDBS ...
Electrochemical reduction of 4-aminopyrimidine and cytosine in dimethyl sulfoxide
(Elsevier, 1982-12-23)
The electrochemical reduction in dimethyl sulfoxide of cytosine (4-amino-2-hydroxypyrimidine) and one of its model compounds (4-aminopyrimidine) has been examined. Initially, each pyrimidine (RH) undergoes a reversible, ...
Reduction of ketones by sodium borohydride in the absence of protic solvents. Inter versus intramolecular mechanism
(Elsevier, 1982)
Acetone, acetophenone and benzophenone react with sodium borohydride in the absence of protic solvent to give the corresponding tetraalkoxyborates. In view of theseresults, the possibility of the 4-centre mechanism for ...
Determination of glucocerebroside, sphingomyelin, free fatty acid and total lipid by thin-layer chromatography and charring-scintillation quenching
(Elsevier, 1982-11-12)
A previously described method has been extended to various specific lipids of liver and brain. The basic method involves thin-layer chromatography followed by charring to reveal the bands. The intensity of each band is ...