Now showing items 521-530 of 554
Synthesis of some functional germanium heterocycles: Germirenes and derivatives of germacyclopentene
(Elsevier, 1972-07-16)
The germirene, 1,1,4,4-tetraiodo-2,3,5,6-tetramethyl-1,4-digerma-2,5-cyclohexadiene, (VI), was prepared from germanium diiodide and 2-butyne. Reduction with lithium aluminum hydride replaces the iodine with hydrogen. The ...
Assignment of torsion and low frequency bending vibrations of secondary chlorides
(Elsevier, 1973-10)
Far infrared and Raman spectra of 2-chloropropane, 2-chlorobutane and dl- and meso-2,4-dichloropentane have been analyzed in order to assign the torsional force constants in the valence force field for secondary chlorides. ...
Error matrices in gas-electron diffraction : II. Influence of weight matrix
(Elsevier, 1973-08)
The properties of three different forms of error matrices in electron diffraction are investigated, assuming the presence of stationary, Gaussian, Markovian noise in the primary data. The error matrices studied are Mxp ...
Thermodynamics of the monohydrogen difluorides VI. Heat capacities of RbHF2 and CsHF2 from 300 to 530 K, transitions and melting
(Elsevier, 1978-09)
The heat capacities of RbHF2 and CsHF2 were determined from 5 to 533 K, and hence into the molten-salt region by adiabatic calorimetry. The thermodynamics of the transitions were determined. The entropy of transition ...
Short chain ceramides as substrates for glucocerebroside synthetase. Differences between liver and brain enzymes
(Elsevier, 1979-04-27)
In order to increase the sensitivity of the assay for ceramide: UDPGlc glucosyltransferase, the enzyme that makes glucocerebroside, we synthesized a variety of ceramide homologues that might be better substrates than the ...
Equilibrium dialysis and carbohydrate-binding studies on the 2-acetamido-2-deoxy--glucopyranosyl-binding lectin from Bandeiraea simplicifolia seeds
(Elsevier, 1978-03)
The carbohydrate-binding specificity of Bandeiraea simplicifolia lectin II (BS II lectin) has been studied by quantitative precipitin and hapten-inhibition analysis. The BS II lectin precipitated biopolymers having nonreducing ...
Enzyme changes associated with mitochondrial malic enzyme deficiency in mice
(Elsevier, 1979-10-18)
A genetically determined absence of mitochondrial malic enzyme (EC 1.1.1.40) in c3H/c6H mice is accompanied by a four-fold increase in liver glucose-6-phosphate dehydrogenase and a two-fold increase for 6-phosphogluconate ...
Reinvestigation of the structure of 1-aminocyclohexane-1-carboxylic acid hydrochloride (C 7 H 14 ClNO 2 )
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1975-09)
Vibrational spectra in the C---H stretching region and the structure of the polymethylene chain
(Elsevier, 1978)
The C---H stretching regions of both the Raman and i.r. spectra of the extended polymethylene chain have broad secondary maxima. In the case of the Raman spectrum, line shapes are dependent on the environment of the chain, ...