Abstract
This report is the first describing a letter of pressure-induced condensation of silanol. Raman and infrared absorption spectra of trimethylsilanol were observed at room temperature and at pressures up to 3.3 GPa. After solidification at 0.3 GPa, the OH vibration mode shifted to lower frequencies along with increasing pressure with a notably large pressure coefficient (-107 cm-1/GPa), thereby indicating that hydrogen bonding in trimethylsilanol had strengthened prominently. Along with increased hydrogen-bond interaction, condensation of trimethylsilanol forming hexamethyldisiloxane and molecular water were observed. The marked shift in the OH stretching mode in the released H2O suggests considerable intermolecular interaction with hexamethyldisiloxane.
| Original language | English |
|---|---|
| Pages (from-to) | 66-70 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 574 |
| DOIs | |
| Publication status | Published - Jun 14 2013 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Physics and Astronomy(all)
Cite this
In situ spectroscopic observations of pressure-induced condensation of trimethylsilanol and behavior of dehydrated molecular water. / Shinozaki, Ayako; Noguchi, Naoki; Kagi, Hiroyuki.
In: Chemical Physics Letters, Vol. 574, 14.06.2013, p. 66-70.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - In situ spectroscopic observations of pressure-induced condensation of trimethylsilanol and behavior of dehydrated molecular water
AU - Shinozaki, Ayako
AU - Noguchi, Naoki
AU - Kagi, Hiroyuki
PY - 2013/6/14
Y1 - 2013/6/14
N2 - This report is the first describing a letter of pressure-induced condensation of silanol. Raman and infrared absorption spectra of trimethylsilanol were observed at room temperature and at pressures up to 3.3 GPa. After solidification at 0.3 GPa, the OH vibration mode shifted to lower frequencies along with increasing pressure with a notably large pressure coefficient (-107 cm-1/GPa), thereby indicating that hydrogen bonding in trimethylsilanol had strengthened prominently. Along with increased hydrogen-bond interaction, condensation of trimethylsilanol forming hexamethyldisiloxane and molecular water were observed. The marked shift in the OH stretching mode in the released H2O suggests considerable intermolecular interaction with hexamethyldisiloxane.
AB - This report is the first describing a letter of pressure-induced condensation of silanol. Raman and infrared absorption spectra of trimethylsilanol were observed at room temperature and at pressures up to 3.3 GPa. After solidification at 0.3 GPa, the OH vibration mode shifted to lower frequencies along with increasing pressure with a notably large pressure coefficient (-107 cm-1/GPa), thereby indicating that hydrogen bonding in trimethylsilanol had strengthened prominently. Along with increased hydrogen-bond interaction, condensation of trimethylsilanol forming hexamethyldisiloxane and molecular water were observed. The marked shift in the OH stretching mode in the released H2O suggests considerable intermolecular interaction with hexamethyldisiloxane.
UR - http://www.scopus.com/inward/record.url?scp=84878563560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878563560&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2013.04.073
DO - 10.1016/j.cplett.2013.04.073
M3 - Article
AN - SCOPUS:84878563560
VL - 574
SP - 66
EP - 70
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -