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Study of the Effects of Intramolecular and Intermolecular Hydrogen-Bonding Systems on the Polymerization of Amide-Containing Benzoxazines
(Wiley VCH Verlag, 2017-02-14)
Pure para and ortho position amide benzoxazines, pHBA-a and oHBA-a, are synthesized. The hydrogen bonding interactions occurring in pHBA-a and oHBA-a are studied by Fourier transform infrared (FT-IR) spectroscopy and proton ...
Analysis of proton NMR in hydrogen bonds in terms of lone-pair and bond orbital contributions
(Wiley, 2015-11)
NMR spectroscopic parameters of the proton involved in hydrogen bonding are studied theoretically. The set of molecules includes systems with internal resonance-assisted hydrogen bonds, internal hydrogen bonds but no ...
Carbonyl stretch of CH…O hydrogen-bonded methyl acetate in supercritical trifluoromethane
(American Institute of Physics, 2020-08-24)
Infrared spectroscopy in the gas phase was used to study the formation reaction of the CH⋯O hydrogen bonding complex involving the CH group of trifluoromethane, as a hydrogen donor, and the carbonyl group of methyl acetate, ...
Interfibril hydrogen bonding improves the strain-rate response of natural armour
(Royal Society Publishing, 2019-01-01)
Fish scales are laminated composites that consist of plies of unidirectional collagen fibrils with twisted-plywood stacking arrangement. Owing to their composition, the toughness of scales is dependent on the intermolecular ...
Intra- and intermolecular hydrogen bonding and conformation in 1-acyl thioureas: An experimental and theoretical approach on 1-(2-chlorobenzoyl)thiourea
(Pergamon-Elsevier Science Ltd, 2015-05)
The vibrational analysis (FT-IR and FT-Raman) for the new 1-(2-chlorobenzoyl)thiourea species suggests that strong intramolecular interactions affect the conformational properties. The X-ray structure determination ...
A new perfluoromethyl aminoenone derivative and the role of the hydrogen bonding in the intra- and intermolecular interactions
(Elsevier Science Sa, 2018-01)
The structure of a new perfluoromethyl derivative, (Z)-4,4,4-trifluoro-1-(2-hydroxyphenyl)-3-(methylamino)-2-buten-1-one (1), was investigated in both crystalline state and solution since the prototropy enable the existence ...