Conformations, energies, and intramolecular hydrogen bonds in dicarboxylic acids: Implications for the design of synthetic dicarboxylic acid receptors

2005 ◽  
Vol 26 (12) ◽  
pp. 1233-1241 ◽  
Author(s):  
Thanh Ha Nguyen ◽  
David E. Hibbs ◽  
Siân T. Howard
Keyword(s):  
Hydrogen Bonds ◽  
Dicarboxylic Acid ◽  
Dicarboxylic Acids ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

scholarly journals A highly efficient solution and solid state ESIPT fluorophore and its OLEDs application

2021 ◽  
Author(s):  
Pei Yu ◽  
Virgile Trannoy ◽  
Anne Léaustic ◽  
Sophie Gadan ◽  
Régis Guillot ◽  
...  
Keyword(s):  
Excited State ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Dicarboxylic Acid ◽  
Ethyl Ester ◽  
Efficient Solution ◽  
Acid Ethyl Ester ◽  
Intramolecular Hydrogen Bonds ◽  
Highly Efficient ◽  
Intramolecular Hydrogen

We present herein the synthesis and the photophysics of 2,2’-bipyridine-3,3’-diol-5,5’-dicarboxylic acid ethyl ester (BP(OH)2DCEt2), an excited state intramolecular proton tranfer (ESIPT)-based fluorophore featuring two identical intramolecular hydrogen bonds. BP(OH)2DCEt2 emits...

Geometric conditions for the formation of short intramolecular hydrogen bonds in dicarboxylic acids and their acid salts. Crystal structures of two cyclopropane derivatives containing such bonds: ammonium hydrogen caronate and potassium hydrogen caronate hydrate

1993 ◽  
Vol 203 (2) ◽  
Author(s):  
H. Küppers ◽  
S. M. Jessen
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Dicarboxylic Acids ◽  
Intramolecular Hydrogen Bonds ◽  
Geometric Conditions ◽  
Ammonium Hydrogen ◽  
Potassium Hydrogen ◽  
Intramolecular Hydrogen ◽  
Cyclopropane Derivatives

Abstract(I) Ammonium hydrogen 3,3-dimethyl-cis-1,2-cyclopropanedicarboxylate (NHBoth compounds show short intramolecular hydrogen bonds with O…O distances of 2.477(5) Å in (I) and 2.425(3) Å in (II). The present structures complement a series of comparable chelate systems. The different geometries in these chelates influence the hydrogen bond lengths (O…O) and produce distortions of the anions to different extents. These considerations, which make the tendency to form

Controlling emissive properties by intramolecular hydrogen bonds: alkyl and aryl meso‐substituted porphycenes

2021 ◽  
Author(s):  
Jacek Waluk ◽  
Arkadiusz Listkowski ◽  
Natalia Masiera ◽  
Michał Kijak ◽  
Roman Luboradzki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

Energies of intramolecular hydrogen bonds in some alcohols

1974 ◽  
Vol 20 (3) ◽  
pp. 414-415
Author(s):  
Ya. A. Shuster ◽  
V. A. Granzhan ◽  
P. M. Zaitsev
Keyword(s):  
Hydrogen Bonds ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

Hydrogen bonds in derivatives of N-substituted N’-benzoyl- and N’-(2-chlorobenzoyl)thiourea

1991 ◽  
Vol 56 (4) ◽  
pp. 880-885 ◽  
Author(s):  
Oľga Hritzová ◽  
Dušan Koščík
Keyword(s):  
Hydrogen Bonds ◽  
Spectral Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Tautomeric Forms ◽  
Intramolecular Hydrogen ◽  
Derivatives Of

Intramolecular hydrogen bonds of the N-H···O=C type have been detected in the derivatives of N-substituted N’-benzoyl- and N’-(2-chlorobenzoyl)thiourea on the basis of IR spectral studies. The title compounds can exist in two tautomeric forms.

Spin-spin coupling via intramolecular hydrogen bonds

1985 ◽  
Vol 25 (5) ◽  
pp. 808-810
Author(s):  
L. N. Kurkovskaya ◽  
Yu. M. Chunaev ◽  
N. M. Przhiyalgovskaya
Keyword(s):  
Hydrogen Bonds ◽  
Spin Coupling ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen ◽  
Spin Spin Coupling

3,3′-N,N′-Bis(amino)-2,2′-bipyridine — An unusually methylation-resistant amine

2011 ◽  
Vol 89 (8) ◽  
pp. 971-977
Author(s):  
Danielle M. Chisholm ◽  
Robert McDonald ◽  
J. Scott McIndoe
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Complex Mixtures ◽  
Amino Groups ◽  
Intramolecular Hydrogen Bonds ◽  
X Ray ◽  
Intramolecular Hydrogen

Methylation of aromatic amino groups is usually straightforward, but the formation of two intramolecular hydrogen bonds in 3,3′-N,N′-bis(amino)-2,2′-bipyridine and (or) the potential for ring methylation prevents the clean tetramethylation of this molecule. Numerous attempts to make 3,3′-N,N′-bis(dimethylamino)-2,2′-bipyridine produced only complex mixtures of variously methylated products, and the only isolated molecule was 3,3′-N,N′-bis(methylamino)-2,2′-bipyridine, for which an X-ray crystal structure was obtained.

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