Compression and Probing C−H···I Hydrogen Bonds of Iodoform under High Pressure by X-ray Diffraction and Raman Scattering
High-pressure methods were applied to investigate the structural stability and hydrogen bonding of polar molecules of iodoform by synchrotron radiation X-ray diffraction and Raman spectra measurements, respectively. Up to a pressure of 40 GPa, no phase transitions were observed. The discontinuous frequency shift of the C-H stretching band is believed to be related to the enhancement of the C-H{hor_ellipsis}I weak hydrogen bonds under high pressures. Ab initio calculations were performed, and the results predict the frequency shift of the C-H stretching vibration as C-H{hor_ellipsis}I interacts via hydrogen bonding. The bulk modulus is 17.3 {+-} 0.8 GPa, with a pressure derivative of 5.2.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1005711
- Journal Information:
- J. Phys. Chem. B, Vol. 113, Issue (21) ; 2009; ISSN 1520-6106
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Negative linear deuterium isotope shift for /sup 13/C in iodoform
Raman studies of hydrogen trapped in As4O6·2H2 at high pressure and low temperature
Hydrogen bonding and the liquid-to-glass transition in n-propanol at high pressures
Journal Article
·
Sun May 01 00:00:00 EDT 1988
· J. Struct. Chem. (Engl. Transl.); (United States)
·
OSTI ID:1005711
Raman studies of hydrogen trapped in As4O6·2H2 at high pressure and low temperature
Journal Article
·
Mon Aug 03 00:00:00 EDT 2020
· Journal of Chemical Physics
·
OSTI ID:1005711
+1 more
Hydrogen bonding and the liquid-to-glass transition in n-propanol at high pressures
Journal Article
·
Tue Dec 01 00:00:00 EST 1992
· Bulletin of the American Physical Society
·
OSTI ID:1005711