Results 31 to 40 of about 772,665 (325)

H2XP:OH2 Complexes: Hydrogen vs. Pnicogen Bonds

open access: yesCrystals, 2016
A search of the Cambridge Structural Database (CSD) was carried out for phosphine-water and arsine-water complexes in which water is either the proton donor in hydrogen-bonded complexes, or the electron-pair donor in pnicogen-bonded complexes.
Ibon Alkorta   +2 more
doaj   +1 more source

Infrared Absorption Associated with Strong Hydrogen Bonds [PDF]

open access: yes, 1958
Several investigators have proposed that there exists a more or less unique relation between the O-O distance in O-H-O hydrogen bonds and the shift of O-H vibrational frequency. [1-5] However, the meager intensities of some bands which have been ascribed
Albert, Norman, Badger, Richard M.
core   +1 more source

Diethyl [(4-bromophenyl)(5-chloro-2-hydroxyanilino)methyl]phosphonate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C17H20BrClNO4P, intermolecular C—H...O and N—H...O hydrogen bonds form centrosymmetric R22(10) dimers linked through O—H...O intermolecular hydrogen bonds, which form centrosymmetric R22(16) dimers ...
V. H. H. Surendra Babu   +4 more
doaj   +1 more source

Nature of the Hydrogen Bond Enhanced Halogen Bond [PDF]

open access: yesMolecules, 2021
The factors responsible for the enhancement of the halogen bond by an adjacent hydrogen bond have been quantitatively explored by means of state-of-the-art computational methods. It is found that the strength of a halogen bond is enhanced by ca. 3 kcal/mol when the halogen donor simultaneously operates as a halogen bond donor and a hydrogen bond ...
Susana Portela, Israel Fernández
openaire   +5 more sources

In-line near infrared spectroscopy during freeze-drying as a tool to measure efficiency of hydrogen bond formation between protein and sugar, predictive of protein storage stability [PDF]

open access: yes, 2015
Sugars are often used as stabilizers of protein formulations during freeze-drying. However, not all sugars are equally suitable for this purpose. Using in-line near-infrared spectroscopy during freeze-drying, it is shown here that hydrogen bond formation
De Beer, Thomas   +7 more
core   +2 more sources

Do Hydrogen Bonds Influence Excitonic Splittings?

open access: yesCHIMIA, 2016
The excitonic splitting and vibronic quenching of the inversion-symmetric homodimers of benzonitrile, (BN)2, and meta-cyanophenol, (mCP)2, are investigated by two-color resonant two-photon ionization spectroscopy.
Franziska A. Balmer   +2 more
doaj   +1 more source

Fifteen 4-(2-methoxyphenyl)piperazin-1-ium salts containing organic anions: supramolecular assembly in zero, one, two and three dimensions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Fifteen 4-(2-methoxyphenyl)piperazin-1-ium salts containing organic anions have been prepared and structurally characterized. In the isostructural 4-chlorobenzoate and 4-bromobenzoate salts, C11H17N2O+·C7H4ClO2− (I) and C11H17N2O+·C7H4BrO2− (II), and the
Chayanna Harish Chinthal   +5 more
doaj   +1 more source

Plasticity of hydrogen bond networks regulates mechanochemistry of cell adhesion complexes

open access: yes, 2014
Mechanical forces acting on cell adhesion receptor proteins regulate a range of cellular functions by formation and rupture of non-covalent interactions with ligands.
Chakrabarti, Shaon   +2 more
core   +1 more source

Ethyl 4-(4-hydroxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate monohydrate

open access: yesActa Crystallographica Section E, 2008
There are three formula units in the asymmetric unit of the title compound, C14H16N2O4·H2O. Molecules are linked by N—H...O hydrogen bonds into dimers with the common R22(8) graph-set motif.
T. N. Guru Row   +4 more
doaj   +1 more source

Hydrogen bonding interactions of benzylidene type Schiff bases studied by vibrational spectroscopic and computational methods [PDF]

open access: yes, 2003
The structural features of four benzylidene type Schiff bases [(E)-benzaldehyde-N-phenyl imine, (A) (E)-2-hydroxybenzaldehyde-N-phenyl imine (B) (E)-benzaldehyde-N-2-hydroxyphenyl imine (C) (E)-2-hydroxybenzaldehyde-N-2-hydroxyphenyl imine (D)] were ...
Aakeroy   +27 more
core   +1 more source

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