Search
Now showing items 51-60 of 98
Ethylene propylene diene terpolymers produced with a homogeneous and highly active zirconium catalyst
(Wiley: Journal of Polymer Science: Polymer Chemistry Edition, 1985-08)
EPDM terpolymers with ethylidene norbornene as diene monomer could be prepared by means of a soluble Ziegler catalyst formed from biscyclopentadienyl zirconium dimethyl and methylaluminoxane. The overall activities lie ...
23Na and 39K nuclear magnetic resonance studies of perfused rat hearts. Discrimination of intra- and extracellular ions using a shift reagent
(Biophysical Society: Biophysical Journal, 1985-07)
High-resolution 23Na and 39K nuclear magnetic resonance (NMR) spectra of perfused, beating rat hearts have been obtained in the absence and presence of the downfield shift reagent Dy(TTHA)3- in the perfusing medium. Evidence ...
A soluble linear Schiff-base coordination polymer containing eight-coordinate zirconium (IV)
(The American Chemical Society: Macromolecules, 1985-07)
The first soluble linear Schiff-base heavy-metal coordination polymer has been synthesized via the condensation of 1,2,4,5-tetraaminobenzene and tetrakis(salicylaldehydato)zirconium(IV) in dry dimethyl sulfoxide. The (N, ...
Role of solvent reorganization dynamics in electron-transfer processes. Theory-experiment comparisons for electrochemical and homogeneous electron exchange involving metallocene redox couples
(The American Chemical Society: Journal of Physical Chemistry, 1985-06-20)
Electrochemical rate constants and activation parameters are reported for the electron exchange of five metallocene couples and bis(benzene)chromium(I/0) in eight solvents at mercury electrodes. The solvents (acetonitrile, ...
Double-layer effects on electrochemical kinetics in nonaqueous media. Dependence reactant charge for some metallocene redox couples.
(Elsevier: Journal of Electroanalytical Chemistry, 1985-05-10)
The effect of altering the double-layer composition on standard rate constants, kob, for metallocene and related redox couples has been examined at mercury electrodes in dimethylformamide and acetonitrile containing ...
Histochemical and biochemical studies of the hepatopancreas peroxidase of the freshwater crayfish, Cambarus robustus
(Wiley: Journal of Morphology, 1985-05)
Crayfish are among the few invertebrate species reported to possess endogenous peroxidase activity. The enzyme is found within the hepatopancreas, the principal digestive and absorptive organ of the crustacean body. Cambarus ...
Experimental study of the collective acceleration of deuterons
(American Institute of Physics, 1985-03-01)
The collective acceleration of deuterons by an intense relativistic electron beam has been studied experimentally. The accelerated ion energy spectra for various different experimental configurations has been measured using ...
Electrochemical redox behaviour of the hexakis-(aryl isocyanide) complexes of molybdenum(0) and tungsten(0)
(Elsevier: Inorganica Chimica Acta, 1985-02-15)
Les complexes hexakis(phénylisocyano), Mo(CNPh)[6] et W(CNPh)[6], dans le mélange d'hexafluorophosphate de tétrabutylammonium 0,2 M et de dichlorométhane, présentent une vague d'oxydation réversible à un électron à E[1/2]≃−0,2 ...
Influence of solvent reorientation dynamics upon the kinetics of some electron-exchange reactions
(Elsevier: Chemical Physics Letters, 1985-01-11)
The role of solvent reorientation dynamics is explored for outer-sphere electron transfer by examining the solvent-dependent rates for electrochemical exchange of selected organometallic redox couples. The observations are ...
Metabolic correlates of anuran behavior
(Oxford University Press: American Zoologist, 1985)
Frogs exhibit extensive diversity in their repertoires of social, reproductive, defensive, and predatory behavior, and in the metabolic processes that support these activities. Three aspects of anuran biology (foraging ...