HYDROGEN BOND
On the Nature of the Hydrogen Bond and Biomolecular Solvation
... the hydrogen bond and its response to changing chemical and thermodynamic conditions is the key to understanding water’s many properties and ...its bond angle and bond distance, and ...
136
The Contrasting Character of Early and Late Transition Metal Fluorides as Hydrogen Bond Acceptors
... Carbon-bound hydrogen atoms were placed at calculated positions and re fi ned using a riding ...model. Hydrogen atoms bound to nitrogen were located directly from the electron density di ff erence map, and ...
13
Rapid and simultaneous synthesis of a hydrogen bond template [3]rotaxane and its related [2]rotaxane molecular shuttle
... a hydrogen bond templated synthetic ...secondary hydrogen bonding interactions possibly arising from the close proximity of the two macrocycles in the ...
21
Highly Porous Hydrogen-Bond Networks from a Triptycene-Based Catechol
... plane. The disordered OH group is involved in three additional half-occupied connections, two of them via the solvent molecule which accepts two hydrogen bonds from different molecules. If all these connections ...
5
Sequence dependent variations in RNA duplex are related to non canonical hydrogen bond interactions in dinucleotide steps
... teractions in the structure formation, folding and stability of various macromolecules are also being investigated [30-33]. Presence of potentially weak cross-strand and intra-strand hydrogen bond ...
18
Theoretical Study of Heteroatom Resonance-Assisted Hydrogen Bond: Effect of Substituent on π-delocalization
... Assisted Hydrogen Bond (RAHB), which usually occurs in β diketons, has a remarkable role in ...of hydrogen bonds strength by substituents may be important in life ...of hydrogen bond in ...
14
Effects of structural variations on the hydrogen bond pairing between adenine derivatives and thymine
... the hydrogen bond interaction energies for pairs of DNA ...Historically, hydrogen bonds were considered to be mostly electrostatic in nature ...overall hydrogen bond ...
10
Molecular dynamics investigation of the influence of the hydrogen bond networks in ethanol/water mixtures on dielectric spectra
... individual hydrogen bonds associated with the reorganization of the entire ...of hydrogen bond networks have been the object of discussion for a long ...
11
The Contrasting Character of Early and Late Transition Metal Fluorides as Hydrogen Bond Acceptors
... The hydrogen-bond acceptor character of transition metal functionalities, such as metal fl uorides, hydrides, and cyanides may depend strongly on the nature of the supporting metal and ligands, and their β ...
12
O vs N protonation of 1 dimethylaminonaphthalene 8 ketones : formation of a peri N–C bond or a hydrogen bond to the pi electron density of a carbonyl group
... for hydrogen bond- ing to the underside of a carbonyl group, ...that hydrogen bonding to the pi surface of a carbonyl group promotes the kinetics of depro- tonation alpha to the carbonyl group in ...
13
The synthesis of a pyridine : N oxide isophthalamide rotaxane utilizing supplementary amide hydrogen bond interactions
... The hydrogen bond templated threading of simple 3,5-bis- amides of pyridine-N-oxides through isophthalamide macro- cycles to form pseudo-rotaxanes has been reported by Jiang and co-workers ...
11
-symmetric 1,4-bis sulphonamido diamino 2, 3- diolderivatives and hydrogen bond interactions with hydrolase
... dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene)bis(N-(2-chloro-3 (trifluo romethyl)benzyl)benzene sulfonamide) derivatives fromN,N'-((4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-diyl) bis (meth ylene)bis(benzenesulfonamide) ...
12
Intermolecular Hydrogen Bond in Acetic Acid Solutions. Raman Spectra and ab initio Calculations
... Molecules of carboxylic acids in the liquid state can form through a hydrogen bond various aggregated formations [1– 18]. The number of possible aggregated formations should increase in solutions with ...
6
Vibrational echo correlation spectroscopy probes of hydrogen bond dynamics in water and methanol
... of hydrogen bond dynamics that ultrafast infrared experiments gain their importance ...lifetimes, hydrogen bond breaking and reformation rates, and some information on spectral diffusion ...of ...
16
Investigation of Substituent Effects on the Strength of Hydrogen Bond in the Guanine: Cytosine Base Pairs: A Theoretical Study
... intermolecular hydrogen bond have been estimated by the EML and MAEM’s ...intermolecular hydrogen bond are in agreement with the nature of ...natural bond orbital ...
12
Hydrogen bond networks determine emergent mechanical and thermodynamic properties across a protein family
... Results: We use a distance constraint model (DCM) to quantify the give and take between thermodynamic stability and mechanical flexibility across the bPBP family. Quantitative stability/flexibility relationships (QSFR) ...
20
Rapidly accessible "click" rotaxanes utilizing a single amide hydrogen bond templating motif
... of hydrogen bond templated rotaxanes using the CuAAC click reaction has been achieved in yields of up to 47%, employing near stoichiometric equivalents of macrocycle and readily prepared azide and alkyne ...
9
Photo-Isomerizable Self-Complementary Hydrogen Bond Arrays
... quadruple hydrogen bond units on opposing sides of the ...intermolecular hydrogen bond interactions that lead to the formation of a supramolecular ...the hydrogen bond strength: ...
283
The synthesis of a pyridine : N oxide isophthalamide rotaxane utilizing supplementary amide hydrogen bond interactions
... The two macrocycles, 1 and 2, investigated in this study are depicted in Figure 1. Each contains an isophthalamide motif that may hydrogen bond to a suitable hydrogen bond acceptor, such as ...
13
Application of Image Analysis Technique to Supramolecule PyB14A: nFA Liquid Crystals through Hydrogen Bond
... ABSTRACT: In this paper, optical properties of supramolecule through hydrogen bond of liquid crystal viz., (4- pyridyl)-benzylidene-4’-n-tetradecyl aniline (PyB14A): long-chain aliphatic fatty acid (FAs) ...
7