scholarly journals Matrix Isolation Spectroscopy and Nuclear Spin Conversion of Propyne Suspended in Solid Parahydrogen

2020 ◽  
Vol 124 (22) ◽  
pp. 4471-4483
Author(s):  
A. I. Strom ◽  
A. Gutiérrez-Quintanilla ◽  
M. Chevalier ◽  
J. Ceponkus ◽  
C. Crépin ◽  
...  
Keyword(s):  
Nuclear Spin ◽  
Matrix Isolation ◽  
Spin Conversion ◽  
Matrix Isolation Spectroscopy

Internal Rotation and Spin Conversion of CH3OH in Solid para-Hydrogen

Science ◽  
2006 ◽  
Vol 311 (5759) ◽  
pp. 365-368 ◽  
Author(s):  
Yuan-Pern Lee ◽  
Yu-Jong Wu ◽  
R. M. Lees ◽  
Li-Hong Xu ◽  
Jon T. Hougen
Keyword(s):  
Internal Rotation ◽  
Nuclear Spin ◽  
Spin Symmetry ◽  
Spectral Lines ◽  
High Resolution Spectrum ◽  
Para Hydrogen ◽  
Spin Conversion ◽  
Host Matrix ◽  
Matrix Isolation Spectroscopy ◽  
Insight Into

The quantum solid para-hydrogen (p-H2) has recently proven useful in matrix isolation spectroscopy. Spectral lines of compounds embedded in this host are unusually narrow, and several species have been reported to rotate in p-H2. We found that a p-H2 matrix inhibits rotation of isolated methanol (CH3OH) but still allows internal rotation about the C–O bond, with splittings of the E/A torsional doublet in internal rotation–coupled vibrational modes that are qualitatively consistent with those for CH3OH in the gaseous phase. This simplified high-resolution spectrum further revealed the slow conversion of nuclear spin symmetry from species E to species A in the host matrix, offering potential insight into nuclear spin conversion in astrophysical sources.

Fast Nuclear Spin Conversion in Water Clusters and Ices: A Matrix Isolation Study

2011 ◽  
Vol 115 (34) ◽  
pp. 9682-9688 ◽  
Author(s):  
Russell Sliter ◽  
Melissa Gish ◽  
Andrey F. Vilesov
Keyword(s):  
Nuclear Spin ◽  
Water Clusters ◽  
Matrix Isolation ◽  
Spin Conversion

VUV photochemistry and nuclear spin conversion of water and water–orthohydrogen complexes in parahydrogen crystals at 4 K

2021 ◽  
Vol 23 (7) ◽  
pp. 4094-4106
Author(s):  
Fatemeh S. Tahsildaran F ◽  
Brendan Moore ◽  
Termeh Bashiri ◽  
Hatsuki Otani ◽  
Pavle Djuricanin ◽  
...  
Keyword(s):  
Nuclear Spin ◽  
Quantum Tunneling ◽  
Oh Radicals ◽  
Spin Conversion

VUV irradiation of water in solid pH2 yields OH radicals which subsequently react with surrounding H2 rapidly via quantum tunneling.

Nuclear spin conversion of molecular hydrogen on amorphous solid water in the presence of O2traces

2011 ◽  
Vol 13 (6) ◽  
pp. 2172-2178 ◽  
Author(s):  
M. Chehrouri ◽  
J.-H. Fillion ◽  
H. Chaabouni ◽  
H. Mokrane ◽  
E. Congiu ◽  
...  
Keyword(s):  
Nuclear Spin ◽  
Molecular Hydrogen ◽  
Amorphous Solid ◽  
Spin Conversion ◽  
Amorphous Solid Water ◽  
Solid Water

ChemInform Abstract: New Developments in Matrix Isolation Spectroscopy

ChemInform ◽  
2010 ◽  
Vol 28 (3) ◽  
pp. no-no
Author(s):  
V. E. BONDYBEY ◽  
A. M. SMITH ◽  
J. AGREITER
Keyword(s):  
Matrix Isolation ◽  
New Developments ◽  
Matrix Isolation Spectroscopy
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