Results 51 to 60 of about 147,809 (300)
Structural Dynamics of Free Proteins in Diffraction [PDF]
, 2011 Among the macromolecular patterns of biological significance, right-handed α-helices are perhaps the most abundant structural motifs. Here, guided by experimental findings, we discuss both ultrafast initial steps and longer-time-scale structural dynamics
Lin, Milo M. +2 more
core +2 more sources
Intramolecular Hydrogen Bonds. XVIII. Intramolecular Hydrogen Bonding in Ethyl α- and β-Alkylamino-alkanoates [PDF]
Bulletin of the Chemical Society of Japan, 1972 Abstract The intramolecular hydrogen bonding in ethyl ω-alkylamino-acetates and -propionates in dilute carbon tetrachloride solutions has been investigated through the measurement of the NH and CO stretching absorption spectra. In the α-esters, the spectral data give no evidence regarding the hydrogen-bond formation.
Nobuo Mori +3 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2013 A 1TSJF,H(O) coupling pathway, dictated by a hydrogen bond, in some 2-fluorobenzoic acids has been observed, while such an interaction does not occur in 2-fluorophenol. Thus, this work reports the conformational analysis of 2-fluorophenylboronic acid (1),
Josué M. Silla +3 more
doaj +1 more source
Intramolecular hydrogen bonding and linear pentapyrrole conformation [PDF]
Monatshefte für Chemie - Chemical Monthly, 2014 Three new linear pentapyrrole rubinoid analogs: 2,3,7,8,17,18,22,23-octamethyl-12,13-bis-(2-carboxyethyl)-1,10,15,24,25,27,28,29-octahydro-27H-pentapyrrin-1,24-dione and 2,3,8,12,13,17,22,23-octamethyl-7,18-bis-(2-carboxyethyl)-1,10,15,24,25,26,27,28,29-octahydro-27H-pentapyrrin-1,24-dione, and its 7,18-dihexanoic acid analog were synthesized ...
D Timothy, Anstine, David A, Lightner
openaire +2 more sources
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
2-{[{2-Hydroxy-3-[2-methyl-5-(propan-2-yl)phenoxy]propyl}(pyridin-2-ylmethyl)amino]methyl}phenol
Acta Crystallographica Section E, 2011 In the title racemic compound, C26H32N2O3, an intramolecular O—H...N hydrogen bond is formed between the phenolic OH group and the tertiary amine N atom.
Rakesh S. Sancheti +2 more
doaj +1 more source
4-Methyl-2,6-bis(phosphonomethyl)phenol dihydrate [PDF]
, 1993 The 4-methyl-2,6-bis(phosphomethyl)phenol molecule, which crystallizes with two water molecules per asymmetric unit, has approximate twofold symmetry and is involved in extensive three-dimensional hydrogen bonding in which every available OH group ...
Ferguson, George +4 more
core +1 more source
Intramolecular hydrogen bonds in 1,4-dihydropyridine derivatives [PDF]
Royal Society Open Science, 2018 1,4-Dihydropyridine (1,4-DHP) derivatives have been synthesized and characterized by 1 H, 13 C, 15 N nuclear magnetic resonance (NMR) spectroscopy, secondary proton/deuterium 13 C isotope shifts, variable temperature 1 H ...
M. Petrova +4 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
wiley +1 more source