Influence of a hydrodynamic environment on chain rigidity, liquid crystallinity, absorptivity, and photoluminescence of hydrogen-bonding-assisted helical poly(phenylacetylene)

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36661-36666 ◽  
Author(s):  
Young-Jae Jin ◽  
Hyojin Kim ◽  
Mari Miyata ◽  
Guanwu Yin ◽  
Takashi Kaneko ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Conformational Changes ◽  
Liquid Crystallinity ◽  
Intramolecular Hydrogen Bonds ◽  
Chain Rigidity ◽  
Intramolecular Hydrogen ◽  
Hydrodynamic Environment

The chain rigidity, liquid crystallinity, absorptivity, and photoluminescence of a helical poly(phenylacetylene) derivative varied significantly depending on the solvent, owing to the conformational changes based on intramolecular hydrogen bonds.

SPECTROSCOPIC STUDIES OF ALCOHOLS: VI. INTRAMOLECULAR HYDROGEN BONDS IN ETHANOLAMINE AND ITS O- AND N-METHYL DERIVATIVES

1965 ◽  
Vol 43 (11) ◽  
pp. 2970-2977 ◽  
Author(s):  
P. J. Krueger ◽  
H. D. Mettee
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Temperature Dependence ◽  
Spectroscopic Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Distinct Band ◽  
Conformational Equilibria ◽  
Methyl Derivatives ◽  
Intramolecular Hydrogen

The competitive intramolecular [Formula: see text] hydrogen bonding in ethanolamine and N-methylethanolamine has been studied in dilute C2Cl4 solution by means of the temperature dependence of the fundamental OH and NH stretching bands. Of the three conformers identified for each of these compounds, the least stable shows a distinct band which is assigned to a "terminal" OH group involved in an intramolecular [Formula: see text] hydrogen bond. Enthalpy differences between conformers are reported and discussed, and compared with those found for the conformational equilibria in 2-methoxyethylamine and N,N-dimethyl-ethanolamine.

Secondary ligands and the intramolecular hydrogen bonds drive photoluminescence quantum yields from aminopyrazine coordination polymers

2020 ◽  
Vol 44 (46) ◽  
pp. 20259-20266
Author(s):  
Maykon Alves Lemes ◽  
José Antônio do Nascimento Neto ◽  
Freddy Fernandes Guimarães ◽  
Lauro June Queiroz Maia ◽  
Ricardo Costa de Santana ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Quantum Yields ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen ◽  
Bonding Patterns

Here the role of secondary ligands and their hydrogen bonding patterns in determining the photoluminescence quantum yields of aminopyrazine (ampyz) coordination polymers was probed.

Role of Intramolecular Hydrogen Bonds in the Intermolecular Hydrogen Bonding of Carbohydrates

1998 ◽  
Vol 102 (33) ◽  
pp. 6690-6696 ◽  
Author(s):  
F. Javier Luque ◽  
José María López ◽  
Manuela López de la Paz ◽  
Cristina Vicent ◽  
Modesto Orozco
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Intermolecular Hydrogen Bonding ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

scholarly journals From monomeric complexes to double-stranded helicates constructed around trans-TiO4N2 motifs with intramolecular inter-ligand hydrogen-bonding interactions

2018 ◽  
Vol 47 (32) ◽  
pp. 11113-11122 ◽  
Author(s):  
Georges Khalil ◽  
Laurent Barloy ◽  
Nathalie Kyritsakas ◽  
Pierre Mobian ◽  
Marc Henry
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Intramolecular Hydrogen Bonds ◽  
Hydrogen Bonding Interactions ◽  
Intramolecular Hydrogen

Monomeric and double-stranded helicates are built from trans-TiO4N2 motifs. Intramolecular hydrogen bonds govern the framework of these species. The strength of these interactions has been investigated.

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