High-pressure vibrational spectra of humite-group minerals: Fluorine effect on thermodynamic properties and hydrogen bonds

2021 ◽  
Vol 312 ◽  
pp. 106654
Author(s):  
Dan Liu ◽  
Joseph R. Smyth ◽  
Xi Zhu ◽  
Yunfan Miao ◽  
Yancheng Hu ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Bonds ◽  
Thermodynamic Properties ◽  
Vibrational Spectra

Similarity of Vibrational Spectra of High Density Amorphous Ice and High Pressure Phase Ice Vi

1994 ◽  
Vol 376 ◽  
Author(s):  
A.I. KOLESNIKOV
Keyword(s):  
High Pressure ◽  
Hydrogen Bonds ◽  
Neutron Scattering ◽  
Amorphous Phase ◽  
Vibrational Spectra ◽  
Amorphous Ice ◽  
Incoherent Neutron Scattering ◽  
Scattering Measurements ◽  
Pressure Phase ◽  
Incoherent Neutron

ABSTRACTInelastic incoherent neutron scattering measurements on the hdaice, ice Ih and high-pressure phases ice VI and ice VIII revealed similarity between the amorphous phase and crystalline ice VI and led to the new proposition that hda ice consists of two interpenetrating hydrogen-bonded networks with no hydrogen bonds between “sublattices”.

Nitroethane at high density: an experimental and computational vibrational study

2021 ◽  
Vol 23 (15) ◽  
pp. 9325-9336
Author(s):  
Akio Yoshinaka ◽  
Serge Desgreniers ◽  
Anguang Hu
Keyword(s):  
High Pressure ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Unit Cell ◽  
High Density ◽  
Monoclinic Unit Cell ◽  
Vibrational Study

Raman and IR vibrational spectra confirm two molecular units associated with the monoclinic unit cell of nitroethane under high pressure. Raman spectra are extremely sensitive to predicted effects of unit cell distortion due to changes in H-bonding.

scholarly journals Novel structural phases and the properties of LaX (X = P, As) under high pressure: first-principles study

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 3058-3070
Author(s):  
Yu Zhou ◽  
Lan-Ting Shi ◽  
A-Kun Liang ◽  
Zhao-Yi Zeng ◽  
Xiang-Rong Chen ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Thermodynamic Properties ◽  
First Principles ◽  
Electronic Structures ◽  
Pressure Range ◽  
Mechanical Stability ◽  
First Principles Study

The structures, phase transition, mechanical stability, electronic structures, and thermodynamic properties of lanthanide phosphates (LaP and LaAs) are studied in the pressure range of 0 to 100 GPa by first principles.

C−H- - -O Hydrogen Bonds in β-Sheetlike Networks:  Combined X-ray Crystallography and High-Pressure Infrared Study

2003 ◽  
Vol 125 (40) ◽  
pp. 12358-12364 ◽  
Author(s):  
Kwang Ming Lee ◽  
Hai-Chou Chang ◽  
Jyh-Chiang Jiang ◽  
Jack C. C. Chen ◽  
Hsiang-En Kao ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Bonds ◽  
Infrared Study ◽  
X Ray ◽  
X Ray Crystallography

Synthesis, crystal and molecular structure, and vibrational spectra of the complex (COOH)2•2H2O•18-crown-6

1986 ◽  
Vol 64 (1) ◽  
pp. 142-147 ◽  
Author(s):  
Suzanne Deguire ◽  
François Brisse ◽  
Jacques Ouellet ◽  
Rodrigue Savoie
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Oxalic Acid ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Crystal And Molecular Structure ◽  
Unit Cell ◽  
Infrared And Raman Spectra ◽  
O 18 ◽  
Stoichiometric Complex

A stoichiometric complex of formula (COOH)2•2H2O•18-crown-6 has been obtained from oxalic acid and the macrocyclic polyether 18-crown-6. The crystals of the complex have a monoclinic unit cell and belong to the P21/c space group. The components in the adduct are linked through hydrogen bonds in a polymer-like fashion: -crown–H2O–HOOCCOOH–OH2–crown–, where the oxalic acid molecules are present in two distinct disordered orientations. The infrared and Raman spectra of the complex are also reported and interpreted.

Sign in / Sign up

Export Citation Format

Share Document