Infrared absorption of hydrogen atoms in solid argon and krypton

1973 ◽  
Vol 59 (7) ◽  
pp. 3871-3871 ◽  
Author(s):  
J. F. Ogilvie
Keyword(s):  
Infrared Absorption ◽  
Hydrogen Atoms ◽  
Solid Argon ◽  
Absorption Of Hydrogen

Infrared Absorption Spectra of SSO-Anion in Solid Argon

2004 ◽  
Vol 108 (32) ◽  
pp. 6656-6660 ◽  
Author(s):  
Aihua Zeng ◽  
Liang Yu ◽  
Yun Wang ◽  
Qingyu Kong ◽  
Qiang Xu ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Infrared Absorption ◽  
Infrared Absorption Spectra ◽  
Solid Argon

A refinement of the dickite structure and some remarks on polymorphism in kaolin minerals

1961 ◽  
Vol 32 (252) ◽  
pp. 683-704 ◽  
Author(s):  
Robert E. Newnham
Keyword(s):  
Crystal Structure ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Structural Features ◽  
Mirror Image ◽  
Hydrogen Atoms ◽  
Octahedral Layer ◽  
Layer Structures ◽  
Infrared Absorption Spectra ◽  
Interlayer Bonding

SummaryThe crystal structure of the clay mineral dickite (Al2Si2H4O9) has been refined to a greater accuracy than that reported in an earlier analysis. Improved lattiçe parameters are: a 5·15±0·001, b 8·940±0·001, c 14·424 ± 0·002Å., β 96° 44′± 1′. The dickite structure shows several significant distortions from the geometry of the idealized kaolin layer, including deformation and rotation of the silica tetra-hedra. The most striking features of the octahedral layer are the extremely short shared edges of 2·37 Å. Although the analysis was not sufficiently accurate to position the hydrogen atoms with certainty, a model consistent with the infrared absorption spectra is proposed. The stacking sequences of kaolin-layer minerals have been considered with reference to the structural features observed in dickite. There are thirty-six ways of superposing two kaolin layers commensurate with the OH-O bonds found in kaolinite, dickite, and nacrite. The twelve sequences showing the least amount of cation-cation superposition between consecutive kaolin layers can be used to construct two one-layer cells, kaolinite and its mirror image, and twelve two-layer cells, including dickite and nacrite. The distortions of the kaolin layer introduce secondary variations in the interlayer bonding that suggest that dickite and nacrite are the most stable of the kaolin layer structures, since they possess the shortest oxygen-hydroxyl contacts.

Infrared spectra of KH2F3 and the structure of the H2F3− ion

1967 ◽  
Vol 45 (12) ◽  
pp. 1347-1350 ◽  
Author(s):  
A. Ažman ◽  
A. Ocvirk ◽  
D. Hadži ◽  
Paul A. Giguère ◽  
Michel Schneider
Keyword(s):  
Solid State ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
Normal Coordinate Analysis ◽  
Force Constants ◽  
Hydrogen Atoms ◽  
Normal Coordinate ◽  
Bending Modes

The infrared absorption of KH2F3 and KD2F3in the solid state was measured between 4 000 and 200 cm−1 The observed bands can be assigned to the stretching and bending modes of the bent H2F3− ion. A normal coordinate analysis was carried out to determine the Urey–Bradley force constants. The results suggest that the hydrogen atoms are not exactly halfway between two fluorine atoms, contrary to the case of the HF2− ion.Les spectres infrarouges de KH2F3 et KD2F3 à l'état solide ont été mesurés entre 4 000 et 200 cm−1 afin d'identifier les vibrations fondamentales de l'anion H2F3−. Les constantes de forces de rappel selon le modèle de Urey–Bradley ont pu être déterminées par analyse des coordonnées normales. Les résultats indiquent que les atomes d'hydrogène ne sont pas exactement à mi-chemin entre deux atomes de fluor, contrairement au cas de l'ion HF2−.

Infrared absorption of cyclic‐ and trans‐NaNO2 and KNO2 in solid argon

1996 ◽  
Vol 104 (3) ◽  
pp. 935-941 ◽  
Author(s):  
Wen‐Jui Lo ◽  
Min‐yi Shen ◽  
Chin‐hui Yu ◽  
Yuan‐Pern Lee
Keyword(s):  
Infrared Absorption ◽  
Solid Argon

Effect of initial energy of hydrogen atoms on two-site trapping in solid argon at 4 K

1982 ◽  
Vol 86 (19) ◽  
pp. 3881-3883 ◽  
Author(s):  
Tetsuo Miyazaki ◽  
Akihiro Wakahara ◽  
Takahiro Usui ◽  
Kenji Fueki
Keyword(s):  
Initial Energy ◽  
Hydrogen Atoms ◽  
Solid Argon
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