Applications of a New High Pressure Anvil Cell for IR Spectroscopy

1985 ◽  
Author(s):  
Edward G. Bartick
Keyword(s):  
High Pressure ◽  
Ir Spectroscopy

scholarly journals High-pressure synthesis of REB5O8(OH)2 (RE = Ho, Er, Tm)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Michael Zoller ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Ir Spectroscopy ◽  
Earth Metal ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure Solution ◽  
Pressure Synthesis ◽  
The Rare Earth

AbstractThe rare earth oxoborates REB5O8(OH)2 (RE = Ho, Er, Tm) were synthesized in a Walker-type multianvil apparatus at a pressure of 2.5 GPa and a temperature of 673 K. Single-crystal X-ray diffraction data provided the basis for the structure solution and refinement. The compounds crystallize in the monoclinic space group C2 (no. 5) and are composed of a layer-like structure containing dreier and sechser rings of corner sharing [BO4]5− tetrahedra. The rare earth metal cations are coordinated between two adjacent sechser rings. Further characterization was performed utilizing IR spectroscopy.

The effect of high external pressure on the structure and stability of MOF α-Mg3(HCOO)6 probed by in situ Raman and FT-IR spectroscopy

2015 ◽  
Vol 3 (22) ◽  
pp. 11976-11984 ◽  
Author(s):  
Haiyan Mao ◽  
Jun Xu ◽  
Yue Hu ◽  
Yining Huang ◽  
Yang Song
Keyword(s):  
High Pressure ◽  
Ir Spectroscopy ◽  
Vibrational Spectroscopy ◽  
External Pressure ◽  
Structural Transitions ◽  
In Situ Raman ◽  
Ft Ir ◽  
High Pressure Study ◽  
Ft Ir Spectroscopy

A first high-pressure study on MOF α-Mg3(HCOO)6 probed by in situ vibrational spectroscopy revealed strongly contrasting host-dependent structural transitions and stabilities.

Dimerization of Carboxylic Acids in Solution up to High Pressures and Temperatures. 1. Pivalic Acid

1987 ◽  
Vol 42 (2) ◽  
pp. 187-196
Author(s):  
E. M. Borschel ◽  
M. Buback
Keyword(s):  
Hydrogen Bond ◽  
High Pressure ◽  
Ir Spectroscopy ◽  
Quantitative Measurement ◽  
High Pressures ◽  
Pressure Effect ◽  
Pivalic Acid ◽  
Dilute Solution ◽  
Hydrogen Bond Strength ◽  
High Pressures And Temperatures

Pivalic acid in dilute solution of n-heptane and of CCl4 is studied via IR spectroscopy in the region of the C = O and O - H stretching fundamentals up to pressures of 2 kbar and temperatures of 175 °C. Lambert-Beer's law is shown to be valid for the C = O modes of the acid monomer and of the hydrogen-bonded cyclic dimer, which enables the quantitative measurement of the dimerization equilibrium as a function of pressure and temperature. Increasing pressure favours the dimerization in n-heptane to a larger extent than in CCl4 solution. In both solvents this pressure effect increases with temperature. The hydrogen bond strength within the dimer species is slightly reduced toward high pressure. The data on the temperature dependence of the dimerization volume and on the pressure dependence of the dimerization enthalpy are compared with direct information on both species as derived from their O - H fundamental modes.

High-Pressure CO Adsorption on Cu-Based Catalysts: Zn-Induced Formation of Strongly Bound CO Monitored by ATR-IR Spectroscopy

Langmuir ◽  
2011 ◽  
Vol 27 (8) ◽  
pp. 4728-4733 ◽  
Author(s):  
Zhimin Liu ◽  
André Rittermeier ◽  
Michael Becker ◽  
Kevin Kähler ◽  
Elke Löffler ◽  
...  
Keyword(s):  
High Pressure ◽  
Ir Spectroscopy ◽  
Co Adsorption

In situ high pressure FT-IR spectroscopy on alkene hydroformylation catalysed by RhH(CO)(PPh3)3 and Co2(CO)8

2004 ◽  
Vol 357 (15) ◽  
pp. 4537-4543 ◽  
Author(s):  
Maria Caporali ◽  
Piero Frediani ◽  
Antonella Salvini ◽  
Gabor Laurenczy
Keyword(s):  
High Pressure ◽  
Ir Spectroscopy ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

scholarly journals Infrared spectroscopic study of absorption and separation of CO using copper(i)-containing ionic liquids

2017 ◽  
Vol 46 (9) ◽  
pp. 2821-2828 ◽  
Author(s):  
Stephen E. Repper ◽  
Anthony Haynes ◽  
Evert J. Ditzel ◽  
Glenn J. Sunley
Keyword(s):  
High Pressure ◽  
Ionic Liquids ◽  
Ir Spectroscopy ◽  
Spectroscopic Study ◽  
Infrared Spectroscopic Study ◽  
Carbonyl Complexes ◽  
Infrared Spectroscopic ◽  
Reversible Formation

Reversible formation of copper(i) carbonyl complexes from copper-containing ionic liquids is probed directly using in situ high pressure IR spectroscopy.

Pressure-enhanced surface interactions between nano-TiO2 and ionic liquid mixtures probed by high pressure IR spectroscopy

2015 ◽  
Vol 17 (33) ◽  
pp. 21143-21148 ◽  
Author(s):  
Hai-Chou Chang ◽  
Jyh-Chiang Jiang ◽  
Meng-Hsiu Kuo ◽  
Ding-Tsai Hsu ◽  
Sheng Hsien Lin
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Ir Spectroscopy ◽  
Liquid Mixtures ◽  
Surface Interactions ◽  
Nano Tio2 ◽  
Enhanced Surface

The formation of pressure-enhanced C–H⋯nano-TiO2 interactions around the C–H groups was observed.

Evidence of conformational changes for protein films exposed to high-pressure CO2 by FT-IR spectroscopy

2003 ◽  
Vol 27 (3) ◽  
pp. 283-295 ◽  
Author(s):  
Alberto Striolo ◽  
Alessandro Favaro ◽  
Nicola Elvassore ◽  
Alberto Bertucco ◽  
Vito Di Noto
Keyword(s):  
High Pressure ◽  
Ir Spectroscopy ◽  
Conformational Changes ◽  
Protein Films ◽  
High Pressure Co2 ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

scholarly journals Al5B12O25(OH) and Ga4InB12O25(OH) – two additional triel borates with the structure type M5B12O25(OH) (M = Ga, In)

2020 ◽  
Vol 75 (6-7) ◽  
pp. 605-613
Author(s):  
Daniela Vitzthum ◽  
Daniel S. Wimmer ◽  
Ingo Widmann ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Ir Spectroscopy ◽  
Single Crystal ◽  
Crystal Structures ◽  
Structure Type ◽  
Hydroxyl Groups ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature

AbstractThe isotypic triel borates Al5B12O25(OH) and Ga4InB12O25(OH) were synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 12.0 GPa/1400 °C and 12.3 GPa/1200 °C, respectively. The crystal structures of both compounds, determined by single-crystal X-ray diffraction, constitute new representatives of the structure type M5B12O25(OH) (M = Ga, In) crystallizing in the space group I41/acd. The presence of the hydroxyl groups was confirmed via single-crystal IR spectroscopy.

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