ヘリウム二量体
出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2023/05/08 04:05 UTC 版)
ヘリウム二量体(ヘリウムにりょうたい、helium dimer)は、2つのヘリウム原子から構成される分子式He2のファンデルワールス分子である[2]。2つの原子からなる二原子分子の中では最も大きい。結合力は弱く、分子が大きく回転したり振動したりすると分解するため、極低温でのみ存在できる。
- ^ “Substance Name: Dihelium”. Toxnet. 2021年9月14日閲覧。
- ^ a b Schollkopf, W; Toennies, JP (25 November 1994). “Nondestructive mass selection of small van der Waals clusters”. Science 266 (5189): 1345-8. Bibcode: 1994Sci...266.1345S. doi:10.1126/science.266.5189.1345. PMID 17772840.
- ^ a b Raunhardt, Matthias (2009). Generation and spectroscopy of atoms and molecules in metastable states (PDF) (Thesis). p. 84.
- ^ a b Kolganova, Elena; Motovilov, Alexander; Sandhas, Werner (November 2004). “Scattering length of the helium-atom?helium-dimer collision”. Physical Review A 70 (5): 052711. arXiv:physics/0408019. Bibcode: 2004PhRvA..70e2711K. doi:10.1103/PhysRevA.70.052711.
- ^ Slater, J. (September 1928). “The Normal State of Helium”. Physical Review 32 (3): 349-360. Bibcode: 1928PhRv...32..349S. doi:10.1103/PhysRev.32.349.
- ^ a b Al Taisan, Nada Ahmed (May 2013). Spectroscopic Detection of the Lithium Helium (LiHe) van der Waals Molecule (PDF) (Thesis).
- ^ Grisenti, R.; Schollkopf, W.; Toennies, J.; Hegerfeldt, G.; Kohler, T.; Stoll, M. (September 2000). “Determination of the Bond Length and Binding Energy of the Helium Dimer by Diffraction from a Transmission Grating”. Physical Review Letters 85 (11): 2284-2287. Bibcode: 2000PhRvL..85.2284G. doi:10.1103/PhysRevLett.85.2284. PMID 10977992.
- ^ “Spectroscopy without Photons: Diffraction of Weakly Bound Complexes from Nano-Gratings”. 2017年10月28日時点のオリジナルよりアーカイブ。2021年9月14日閲覧。
- ^ Zeller, S.; Kunitski, M.; Voigtsberger, J.; Kalinin, A.; Schottelius, A.; Schober, C.; Waitz, M.; Sann, H. et al. (20 December 2016). “Imaging the He2 quantum halo state using a free electron laser”. Proceedings of the National Academy of Sciences 113 (51): 14651-14655. arXiv:1601.03247. Bibcode: 2016PNAS..11314651Z. doi:10.1073/pnas.1610688113. ISSN 0027-8424.
- ^ a b Cerpa, Erick; Krapp, Andreas; Flores-Moreno, Roberto; Donald, Kelling J.; Merino, Gabriel (9 February 2009). “Influence of Endohedral Confinement on the Electronic Interaction between He atoms: A He2@C20H20 Case Study”. Chemistry: A European Journal 15 (8): 1985-1990. doi:10.1002/chem.200801399.
- ^ a b c Havermeier, T.; Jahnke, T.; Kreidi, K.; Wallauer, R.; Voss, S.; Schoffler, M.; Schossler, S.; Foucar, L. et al. (April 2010). “Single Photon Double Ionization of the Helium Dimer”. Physical Review Letters 104 (15): 153401. arXiv:1006.2667. Bibcode: 2010PhRvL.104o3401H. doi:10.1103/PhysRevLett.104.153401. PMID 20481987.
- ^ Callear, A. B.; Hedges, R. E. M. (16 September 1967). “Metastability of Rotationally Hot Dihelium at 77° K”. Nature 215 (5107): 1267-1268. Bibcode: 1967Natur.215.1267C. doi:10.1038/2151267a0.
- ^ a b Guilhaus, Michael; Brenton, A. Gareth; Beynon, John H.; Rabrenovi?, Mila; von Rague Schleyer, Paul (1985). “He22+, the experimental detection of a remarkable molecule”. Journal of the Chemical Society, Chemical Communications (4): 210. doi:10.1039/C39850000210.
- ^ Pauling, Linus (1933). “The Normal State of the Helium Molecule-Ions He2+ and He2++”. The Journal of Chemical Physics 1 (1): 56. Bibcode: 1933JChPh...1...56P. doi:10.1063/1.1749219.
- ^ Olah, George A.; Klumpp, Douglas A. (2008-01-03). Superelectrophiles and Their Chemistry. p. 12. ISBN 9780470185117 2015年2月19日閲覧。
- ^ Dunitz, J. D.; Ha, T. K. (1972). “Non-empirical SCF calculations on hydrogen-like molecules: the effect of nuclear charge on binding energy and bond length”. Journal of the Chemical Society, Chemical Communications (9): 568. doi:10.1039/C39720000568.
- ^ Guilhaus, M.; Brenton, A. G.; Beynon, J. H.; Rabrenovic, M.; Schleyer, P. von Rague (14 September 1984). “First observation of He22+: charge stripping of He2+ using a double-focusing mass spectrometer”. Journal of Physics B: Atomic and Molecular Physics 17 (17): L605-L610. Bibcode: 1984JPhB...17L.605G. doi:10.1088/0022-3700/17/17/010.
- ^ Bae, Y. K.; Coggiola, M. J.; Peterson, J. R. (1984-02-27). “Observation of the Molecular Helium Negative Ion He2-”. Physical Review Letters 52 (9): 747-750. Bibcode: 1984PhRvL..52..747B. doi:10.1103/PhysRevLett.52.747.
- ^ Michels, H. H. (1984-04-16). “Electronic Structure of the Helium Molecular Anion He2-”. Physical Review Letters 52 (16): 1413-1416. Bibcode: 1984PhRvL..52.1413M. doi:10.1103/PhysRevLett.52.1413.
- ^ Andersen, T. (1995). “Lifetimes of negative ions determined in a storage ring” (英語). Physica Scripta 1995 (T59): 230. Bibcode: 1995PhST...59..230A. doi:10.1088/0031-8949/1995/T59/031. ISSN 1402-4896.
- ^ Vrinceanu, D.; Sadeghpour, H. (June 2002). “He(1 ^{1}S)-He(2 ^{3}S) collision and radiative transition at low temperatures”. Physical Review A 65 (6): 062712. Bibcode: 2002PhRvA..65f2712V. doi:10.1103/PhysRevA.65.062712.
- ^ Curtis, W. E. (19 August 1913). “A New Band Spectrum Associated with Helium”. Proceedings of the Royal Society of London. Series A 89 (608): 146-149. Bibcode: 1913RSPSA..89..146C. doi:10.1098/rspa.1913.0073. JSTOR 93468.
- ^ Goldstein, E. (1913). “Uber ein noch nicht beschriebenes, anscheinend dem Helium angehorendes Spektrum”. Verhandlungen der Physikalischen Gessellschaft 15 (10): 402-412.
- ^ Fowler, Alfred (1 March 1915). “A New Type of Series in the Band Spectrum Associated with Helium”. Proceedings of the Royal Society of London. Series A 91 (627): 208-216. Bibcode: 1915RSPSA..91..208F. doi:10.1098/rspa.1915.0011. JSTOR 93423.
- ^ Lai, Dong (29 August 2001). “Matter in strong magnetic fields”. Reviews of Modern Physics 73 (3): 629-662. arXiv:astro-ph/0009333. doi:10.1103/RevModPhys.73.629.
- ^ Lange, K. K.; Tellgren, E. I.; Hoffmann, M. R.; Helgaker, T. (19 July 2012). “A Paramagnetic Bonding Mechanism for Diatomics in Strong Magnetic Fields”. Science 337 (6092): 327-331. doi:10.1126/science.1219703.
- ^ Sero, R.; Nunez, O.; Moyano, E. (2016). “Ambient Ionisation-High-Resolution Mass Spectrometry”. Comprehensive Analytical Chemistry. Comprehensive Analytical Chemistry 71: 51-88. doi:10.1016/bs.coac.2016.01.003. ISBN 9780444635723. ISSN 0166-526X.
- ^ Liu, Min-min; Han, Hui-li; Li, Cheng-bin; Gu, Si-hong (October 2013). “Binding energies and geometry of the 24Mg-He2 and 40Ca-He2 triatomic systems”. Physical Review A 88 (4): 042503. Bibcode: 2013PhRvA..88d2503L. doi:10.1103/PhysRevA.88.042503.
- ^ Kolganova, Elena A. (26 Nov 2010). “Helium Trimer in the Framework of Faddeev Approach”. Physics of Particles and Nuclei 41 (7): 1108-1110. Bibcode: 2010PPN....41.1108K. doi:10.1134/S1063779610070282 2015年2月28日閲覧。.
- ^ Kolganova, E. A.; Motovilov, A. K.; Sandhas, W. (4 May 2011). “The 4He Trimer as an Efimov System”. Few-Body Systems 51 (2-4): 249-257. arXiv:1104.1989. Bibcode: 2011FBS....51..249K. doi:10.1007/s00601-011-0233-x.
- ^ Kunitski, Maksim; Zeller, Stefan; Voigtsberger, Jorg; Kalinin, Anton; Schmidt, Lothar Ph. H.; Schoffler, Markus; Czasch, Achim; Schollkopf, Wieland et al. (May 2015). “Observation of the Efimov state of the helium trimer”. Science 348 (6234): 551-555. arXiv:1512.02036. Bibcode: 2015Sci...348..551K. doi:10.1126/science.aaa5601. PMID 25931554.
- ^ Wang, Guan-Wu; Saunders, Martin; Khong, Anthony; Cross, R. James (April 2000). “A New Method for Separating the Isomeric C84 Fullerenes”. Journal of the American Chemical Society 122 (13): 3216-3217. doi:10.1021/ja994270x.
- ^ Krapp, Andreas; Frenking, Gernot (5 October 2007). “Is This a Chemical Bond? A Theoretical Study of Ng2@C60 (Ng=He, Ne, Ar, Kr, Xe)”. Chemistry: A European Journal 13 (29): 8256-8270. doi:10.1002/chem.200700467.
- ^ Osuna, Silvia; Swart, Marcel; Sola, Miquel (7 December 2009). “Reactivity and Regioselectivity of Noble Gas Endohedral Fullerenes Ng@C60 and Ng2@C60(Ng=He-Xe)”. Chemistry: A European Journal 15 (47): 13111-13123. doi:10.1002/chem.200901224.
- ^ Kryachko, Eugene S.; Nikolaienko, Tymofii Yu. (15 July 2015). “He2@C60: Thoughts of the concept of a molecule and of the concept of a bond in quantum chemistry”. International Journal of Quantum Chemistry 115 (14): 859-867. doi:10.1002/qua.24916.
- ^ a b Dolgonos, G. A.; Kryachko, E. S.; Nikolaienko, T. Yu (18 June 2018). “До питання Не-Не зв’язку у ендоедральному фулерен? Не2@C60 (On the Problem of He-He Bond in the Endohedral Fullerene He2@C60)” (英語). Ukrainian Journal of Physics 63 (4): 288-288. ISSN 2071-0194.
[続きの解説]
「ヘリウム二量体」の続きの解説一覧
- 1 ヘリウム二量体とは
- 2 ヘリウム二量体の概要
- 3 分子イオン
- 4 エキシマ
- 5 磁気
- 6 外部リンク
- ヘリウム二量体のページへのリンク
