Results 341 to 350 of about 2,740,122 (390)
Some of the next articles are maybe not open access.
A twist-bend nematic phase driven by hydrogen bonding.
Angewandte Chemie, 2014The liquid crystalline phase behavior of 4-[6-(4'-cyanobiphenyl-4-yl)hexyloxy]benzoic acid (CB6OBA) and 4-[5-(4'-cyanobiphenyl-4-yloxy)pentyloxy]benzoic acid (CBO5OBA) is described.
Suzanne M Jansze +4 more
semanticscholar +1 more source
The Journal of Physical Chemistry A, 2006
In this Article we extend the idea of detecting a hydrogen bond solely on one single quantum chemically determined descriptor. We present an improvement of the method introduced by Reiher et al. (Theor. Chim. Acta 2001, 106, 379), who mapped the strength of the hydrogen bond onto an easily accessible quantity, namely, the two-center shared-electron ...
Barbara Kirchner, Jens Thar
openaire +3 more sources
In this Article we extend the idea of detecting a hydrogen bond solely on one single quantum chemically determined descriptor. We present an improvement of the method introduced by Reiher et al. (Theor. Chim. Acta 2001, 106, 379), who mapped the strength of the hydrogen bond onto an easily accessible quantity, namely, the two-center shared-electron ...
Barbara Kirchner, Jens Thar
openaire +3 more sources
, 2014
Polymers containing hydrogen-bonding side groups (HBGs) can form transient supramolecular networks that exhibit technologically useful viscoelastic properties. Here, we investigate how dynamic behavior of functional poly(n-butyl acrylate) melts and cross-
C. Lewis, K. Stewart, M. Anthamatten
semanticscholar +1 more source
Polymers containing hydrogen-bonding side groups (HBGs) can form transient supramolecular networks that exhibit technologically useful viscoelastic properties. Here, we investigate how dynamic behavior of functional poly(n-butyl acrylate) melts and cross-
C. Lewis, K. Stewart, M. Anthamatten
semanticscholar +1 more source
Hydrogen-Bonded Dihydrotetraazapentacenes
Organic Letters, 2012Three new members of N-heteropentacenes explored herein have adjacent pyrazine and dihydropyrazine rings at one end of the pentacene backbone. Interesting findings from this study include self-complementary N-H···N H-bonds in the solid state, solvent-dependent UV-vis absorption caused by H-bonding, and new p-type organic semiconductors with field ...
Qian Miao +4 more
openaire +3 more sources
Adsorption of bisphenol A based on synergy between hydrogen bonding and hydrophobic interaction.
Langmuir, 2014The study mainly investigated the synergetic adsorption of hydrogen bonding and hydrophobic interaction. To simplify the adsorption driving forces and binding sites, the hydrophilic and hydrophobic microdomain was introduced onto polypropylene (PP ...
Xiangyu Zhou +4 more
semanticscholar +1 more source
Hydrogen-bonding organocatalysts for ring-opening polymerization
, 2014In the ring-opening polymerization (ROP) of cyclic esters and carbonates, hydrogen-bonding organocatalysis offers an interesting alternative to metal-based and enzymatic catalysis to access biocompatible and biodegradable polymers.
Coralie Thomas, B. Bibal
semanticscholar +1 more source
Reports on Progress in Physics, 1952
A survey is given of the infra-red spectra of substances possessing hydroxyl groups and of the position of the O-H valence vibration in the solid, liquid and gaseous state and in dilute solutions. The spectra of water, alcohols and carboxylic acids are discussed separately; and evidence for molecular association is adduced from the experiments on ...
openaire +2 more sources
A survey is given of the infra-red spectra of substances possessing hydroxyl groups and of the position of the O-H valence vibration in the solid, liquid and gaseous state and in dilute solutions. The spectra of water, alcohols and carboxylic acids are discussed separately; and evidence for molecular association is adduced from the experiments on ...
openaire +2 more sources
Persistent Hydrogen‐Bonded and Non‐Hydrogen‐Bonded Phenoxyl Radicals
Chemistry – A European Journal, 2011AbstractThe production of stable phenoxyl radicals is undoubtedly a synthetic chemical challenge. Yet it is a useful way to gain information on the properties of the biological tyrosyl radicals. Recently, several persistent phenoxyl radicals have been reported, but only limited synthetic variations could be achieved.
Maxim L. Kuznetsov +5 more
openaire +3 more sources
Understanding the pK(a) of redox cysteines: the key role of hydrogen bonding.
Antioxidants and Redox Signaling, 2013Many cellular functions involve cysteine chemistry via thiol-disulfide exchange pathways. The nucleophilic cysteines of the enzymes involved are activated as thiolate. A thiolate is much more reactive than a neutral thiol.
Goedele Roos, N. Foloppe, J. Messens
semanticscholar +1 more source
ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
openaire +4 more sources
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
openaire +4 more sources