Caesium hydride
| Caesium hydride | |
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Caesium hydride |
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Other names
Cesium hydride |
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| Identifiers | |
| CAS number | 13772-47-9  |
| PubChem | 139281  |
| ChemSpider | 122830 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | CsH |
| Molar mass | 133.91339 g/mol |
| Appearance | White or colorless crystals or powder[1] |
| Density | 3.42 g/cm3[1] |
| Melting point |
~170 °C (decomposes)[1] |
| Structure | |
| Crystal structure | Face centered cubic |
| Coordination geometry |
Octahedral |
| Related compounds | |
| Other anions | CsF, CsCl, CsBr, CsI |
| Other cations | LiH, NaH, KH, RbH, and all other hydrides |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Caesium hydride (CsH) is a compound of caesium and hydrogen. It was the first substance to be created by light-induced particle formation in metal vapor,[2] and showed promise in early studies of an ion propulsion system using caesium.[3]
The caesium nuclei in CsH can be hyperpolarized through interactions with an optically pumped caesium vapor in a process known as spin-exchange optical pumping (SEOP). SEOP can increase the nuclear magnetic resonance (NMR) signal of caesium nuclei by an order of magnitude.[4]
Crystal structure
At room temperature and atmospheric pressure, CsH has the same structure as NaCl.
References
- ^ a b c Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. p. 4.57. ISBN 0-8493-0486-5.
- ^ Tam, A.; Moe, G.; Happer, W. (1975). "Particle Formation by Resonant Laser Light in Alkali-Metal Vapor". Phys. Rev. Lett. 35 (24): 1630–33. Bibcode:1975PhRvL..35.1630T. doi:10.1103/PhysRevLett.35.1630.
- ^ Burkhart, J. A.; Smith, F. J. (November 1963). "Application of dynamic programming to optimizing the orbital control process of a 24-hour communications satellite". NASA Technical Report.
- ^ Ishikawa, K.; Patton, B.; Jau, Y.-Y.; Happer, W. (2007). "Spin Transfer from an Optically Pumped Alkali Vapor to a Solid". Phys. Rev. Lett. 98 (18): 183004. Bibcode:2007PhRvL..98r3004I. doi:10.1103/PhysRevLett.98.183004.
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