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On the hydrogen bonding between N-methylformamide and acetone and tetrahydrofuran
(Elsevier B.V., 2014-04-15)
Liquid mixtures of N-methylformamide (NMF)-acetone (ACT) and NMF-tetrahydrofuran (THF) 20 mol% NMF have been investigated using Monte Carlo simulations, aiming to obtain new details on the hydrogen bonding donation of the ...
Hydrogen bonding donation of N-methylformamide with dimethylsulfoxide and water
20% N-methylformamide (NMF) mixtures with water and with dimethylsulfoxide (DMSO) have been studied. A comparison between the hydrogen bonding (H-bond) donation of N-methylformamide with both solvents in the mixtures is ...
Molecular vibrational constants and chemical bonding in five-membered heteratomic compounds
By means of the force field and mean amplitudes of vibration of furan, thiophene, selenophene and tellurophene molecules, we have concluded that the ground-state aromaticity order in the series is thiophene > tellurophene ...
Shear bond strength of adhesive systems to enamel and dentin. Thermocycling influence
Objectives: The purpose of the this study was to evaluate the influence of thermocycling on shear bond strength on bovine enamel and dentin surfaces of different adhesive systems. Methods: Thirty sound bovine incisors were ...
On understanding the chemical origin of band gaps
Conceptual DFT and quantum chemical topology provide two different approaches based on the electron density to grasp chemical concepts. We present a model merging both approaches, in order to obtain physical properties ...