Global ETD Search
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Showing 1 to 5 of 5 for “"hydrogenbonding"”.
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Determining the Crystal Structure of Cellulose III by Modeling
… 54 structures reoriented to give very similar hydrogenbonding schemes in the interiors, along with the lowest energies. The one-chain cell models had much lower energy. The eight best “up†one-chain models agree well with the structure newly determined by experiment.
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Novel nucleotide analogues for forming stable DNA triple helices
… were synthesised to address this potential hydrogenbonding motif.<br/>Biophysical studies demonstrate selective recognition of the CG base pair. Results indicate selectivity for CG and binding affinity are much improved on previous modifications. Their fluorescence properties and general …
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Conformational Studies on Alicyclic Alcohols
… red and NMR methods are compared in the study of hydrogenbonding in a series of alicyclic diols and from the results obtained, predictions are made on their preferred conformations.<br/><br/>The conformational preference of the hydroxyl group in cyclohexanol is determined by the concentration vs. …
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The effect of hydrocarbon exposure and temperature on the behaviour of elastomeric seals
… it was observed that species with high polar and hydrogenbonding Hansen solubility parameters had lower sensitivity to temperature. It is postulated that in these species, less aromatic concentration in the NBR occurs at elevated temperatures, contributing to lower sensitivities. Aromatic …
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Novel sulfur containing electrophiles in asymmetric organocatalysis
Three different kinds of sulfur containing electrophiles in organo- and metal catalyzed reactions have been evaluated. We demonstrated the first diastereoselective reaction of beta-keto esters with 1-chloroethylphenyl sulfide catalyzed by cinchona alkaloids. At the same time, we could confirm the …