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ortho-h-2 (17) 17
para-h-2 (11) 11
physics, atomic, molecular & chemical (9) 9
h-2 (6) 6
hydrogen (6) 6
astronomy & astrophysics (5) 5
chemistry, physical (4) 4
h2o (4) 4
ism: molecules (4) 4
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parahydrogen-induced polarization (3) 3
spektroskopie (3) 3
absorption (2) 2
abundances (2) 2
adsorption (2) 2
amorphous ice (2) 2
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molecular processes (2) 2
ortho-h-2 conversion (2) 2
physics (2) 2
polarisationsebene (2) 2
produktionsfaktor (2) 2
rotational states (2) 2
rotational-excitation (2) 2
scattering (2) 2
spin conversion (2) 2
starless cores (2) 2
state (2) 2
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water (2) 2
200 k (1) 1
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Nature, ISSN 0028-0836, 12/2014, Volume 516, Issue 7530, pp. 219 - 221
The age of dense interstellar cloud cores, where stars and planets form, is a crucial parameter in star formation and difficult to measure. Some models predict... 
DARK CLOUDS | MOLECULAR CLOUDS | STARLESS CORES | H-3(+) | MULTIDISCIPLINARY SCIENCES | HETERODYNE INSTRUMENT | CHEMISTRY | RATIO | APEX | ORTHO-H-2 | PRESTELLAR CORES
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 12/2011, Volume 536
Aims. This work deals with the rotational excitation of ortho/para-H2O with para/ortho-H-2 so that thermalized de-(excitation) rate coefficients up to 1500 K... 
H2O | HIFI | PARA-H-2 | FORMING REGIONS | H-2 | ORTHO-H-2 | COLLISIONAL EXCITATION | molecular data | ISM: molecules | WATER-VAPOR | VERY-LOW TEMPERATURE | ASTRONOMY & ASTROPHYSICS | molecular processes
Journal Article
Astrophysical Journal, ISSN 0004-637X, 09/2018, Volume 864, Issue 2, p. 133
Observations of multiple rotational transitions from a single molecule allow for unparalleled constraints on the physical conditions of the emitting region. We... 
protoplanetary disks | ISM: molecules | astrochemistry | techniques: interferometric | HYDRAE | INSTABILITY | SUBMILLIMETER ARRAY | ACCRETION DISKS | ORTHO-H-2 | TRANSPORT | ASTRONOMY & ASTROPHYSICS | GAP | PROTOPLANETARY DISCS | EMISSION | SPECTRA
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 08/2012, Volume 86, Issue 2
Theoretical H2O-H-2 pressure broadening and line shifts are compared with experimental values for three water rotational transitions. These transitions, which... 
TRANSITION | ROTATIONAL-EXCITATION | H2O | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | PARA-H-2 | 200 K | ICE | OPTICS | H-2 | ORTHO-H-2
Journal Article
Physical Chemistry Chemical Physics, ISSN 1463-9076, 2017, Volume 19, Issue 33, pp. 21933 - 21937
Parahydrogen induced polarization (PHIP) is a hyperpolarization method for NMR signal enhancement with applications in spectroscopy and imaging. Although... 
C-13 | MECHANISM | SPECTROSCOPY | CONVERSION | DYNAMIC NUCLEAR POLARIZATION | CATALYTIC-HYDROGENATION | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | PARAHYDROGEN-INDUCED POLARIZATION | CHEMISTRY, PHYSICAL | PARA-H-2 | ASYMMETRIC HYDROGENATION | ORTHO-H-2
Journal Article
Physical chemistry chemical physics : PCCP, ISSN 1463-9076, 08/2017, Volume 19, Issue 33, pp. 21933 - 21937
Parahydrogen induced polarization (PHIP) is a hyperpolarization method for NMR signal enhancement with applications in spectroscopy and imaging. Although... 
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 09/2015, Volume 581, pp. A122 - 13
Aims. We aim to develop a chemical model that contains a consistent description of spin-state chemistry in reactions involving chemical species with multiple... 
Astrochemistry | ISM: clouds | ISM: molecules | ISM: abundances | FRACTIONATION | STARLESS CORES | STABILITY | ABUNDANCES | ORTHO-H-2 | DEUTERIUM | DARK CLOUDS | TO-PARA RATIO | SELECTION-RULES | NITROGEN HYDRIDES | ASTRONOMY & ASTROPHYSICS | astrochemistry | Ammonia | Deuterons | Chemical reactions | Tables | Mathematical models | Deuteration | Density | Astronomy | Physics - Astrophysics of Galaxies
Journal Article
JOURNAL OF CHEMICAL PHYSICS, ISSN 0021-9606, 09/2011, Volume 135, Issue 12
Spectra of solid para-H-2 doped with CH3F at 1.8 K are studied in the nu(3) region (similar to 1040 cm(-1)) using a quantum cascade laser source. As shown... 
INFRARED-SPECTRA | CH3F | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | PARAHYDROGEN | SPIN CONVERSION | ORTHO-H-2
Journal Article
The European Physical Journal D, ISSN 1434-6060, 3/2019, Volume 73, Issue 3, pp. 1 - 5
Journal Article
JOURNAL OF MOLECULAR SPECTROSCOPY, ISSN 0022-2852, 04/2015, Volume 310, pp. 39 - 44
New satellite series were found to the lower energy side of each main peak of the nu(3) band of CH3F embedded in a para-H-2 crystal. All the peaks showed a... 
HYDROGEN | MATRIX | Solid para-hydrogen | Methyl fluoride | SPECTROSCOPY | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | INFRARED-SPECTROSCOPY | TRANSITIONS | PARAHYDROGEN | Quantum crystal | Ortho para conversion | Ortho-H-2 clusters
Journal Article
International Journal of Hydrogen Energy, ISSN 0360-3199, 01/2015, Volume 40, Issue 1, pp. 383 - 391
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 10/2010, Volume 82, Issue 4, p. 040702
Journal Article
Proceedings of Institution of Civil Engineers: Energy, ISSN 1751-4223, 02/2015, Volume 168, Issue 1, pp. 47 - 60
Hydrogen represents a valuable energy carrier. It has the potential to contribute strategically to future energy requirements in an environmentally responsible... 
Natural resources | Energy | Fossil fuels | CARBON | natural resources | ENERGY & FUELS | PARA-H-2 | THERMAL-CRACKING | CO2 CAPTURE | fossil fuels | METHANE | REACTOR | PROGRESS | POWER-PLANTS | ORTHO-H-2 CONVERSION | OXIDE FUEL-CELLS | energy
Journal Article
Nuclear Inst. and Methods in Physics Research, A, ISSN 0168-9002, 2011, Volume 640, Issue 1, pp. 241 - 246
Journal Article
LOW TEMPERATURE PHYSICS, ISSN 1063-777X, 04/2011, Volume 37, Issue 4, pp. 357 - 362
Double doping of solid normal hydrogen with CH3F and O-2 at about 4.2 K gives evidence of (ortho-H-2)n:CH3F clusters and of O-2:CH3F complex formation. FTIR... 
HIGH-RESOLUTION SPECTROSCOPY | PHYSICS, APPLIED | H2O | NUCLEAR-SPIN CONVERSION | BONDED COMPLEXES | ABSORPTION | PARAHYDROGEN | IMPURITIES | SPECTRA | ORTHO-H-2 | ARGON MATRICES
Journal Article
PHYSICAL REVIEW B, ISSN 1098-0121, 07/1998, Volume 58, Issue 1, pp. 234 - 241
Measurements of the S-0(0) triplet and of the double rotovibrational Q(1)(0)+S-0(0) Raman transition in solid hydrogen at different densities are presented.... 
HYDROGEN | PHYSICS, CONDENSED MATTER | PARA-H-2 | STATE | ORTHO-H-2 | SCATTERING
Journal Article
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, ISSN 0020-7608, 03/2005, Volume 102, Issue 2, pp. 230 - 238
Density Functional Theory (DFT) and direct ab initio molecular dynamics (MD) calculations were applied to the hydrogen molecule trapped in a water cluster... 
PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | CHEMISTRY, PHYSICAL | PARA-H-2 | hydrogen | AMORPHOUS ICE | H-2 | ORTHO-H-2 | DFT calculation | RAMAN-SPECTRUM | MATHEMATICS, INTERDISCIPLINARY APPLICATIONS | ab initio dynamics | INDIVIDUAL ROTATIONAL STATES | DIMER | gas hydrate | DYNAMICS | SURFACE | water cluster | LIQUIDS
Journal Article
Astrophysical Journal, ISSN 0004-637X, 08/1994, Volume 431, Issue 2, pp. L135 - L138
The recently discovered 4141 cm-1 interstellar infrared feature is argued to be a Q1(0) absorption of para-hydrogen. Adsorption of H-2 by microporous amorphous... 
Molecular processes | ISM: molecules | Infrared: ISM: lines and bands | MOLECULAR CLOUDS | GRAIN MANTLES | ROTATIONAL SPECTRUM | H-2 | ADSORPTION | ORTHO-H-2 | INFRARED, ISM, LINES AND BANDS | ISM, MOLECULES | DESORPTION | MOLECULAR PROCESSES | ASTRONOMY & ASTROPHYSICS | SURFACE | MICROPOROUS AMORPHOUS ICE | WATER
Journal Article
1997, IAU SYMPOSIA, Issue 178, 10
Computational modeling is discussed of some interstellar surface processes. The surface of interstellar grains is envisaged as covered by at least several... 
MOLECULAR-HYDROGEN | GRAIN MANTLES | CLOUDS | ASTRONOMY & ASTROPHYSICS | PARA-H-2 | ABSORPTION | MICROPOROUS AMORPHOUS ICE | SPECTRA | ADSORPTION | H-2 | ORTHO-H-2
Book Chapter
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