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Other names
Diborene
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3D model (JSmol)
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ChemSpider | |
PubChem CID
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Properties | |
B2H2 | |
Molar mass | 23.64 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Diborane(2) or diborene is a theoretical/hypothetical inorganic compound with the formula B2H2. Diborenes also refers to a series of molecules with a formula R:(BH)=(BH):R, where R is an organic group.[1] B2H2 are unstable under ambient conditions. They are synthesized by pulsed laser ablation of boron in a mixed hydrogen-argon gas atmosphere. Upon cooling the mixture, the argon gas changes into a solid, thereby stabilizing the trapped diboranes.[2][3]
B2H2 is a linear molecule with a triplet ground state, as revealed by electron paramagnetic resonance,[2] and shows an antisymmetric stretching mode at 2679.9 cm–1.[3]
References
- ^ Yuzhong Wang, Brandon Quillian, Pingrong Wei, Chaitanya S. Wannere, Yaoming Xie, R. Bruce King, Henry F. Schaefer, III, Paul v. R. Schleyer, and Gregory H. Robinson (2007). "A Stable Neutral Diborene Containing a B=B Double Bond". J. Am. Chem. Soc. 129 (41): 12412–12413. doi:10.1021/ja075932i. PMID 17887683.
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: CS1 maint: uses authors parameter (link) - ^ a b Knight, Lon B.; Kerr, Kelly; Miller, P. K.; Arrington, C. A. (1995). "ESR Investigation of the HBBH(X3Σ) Radical in Neon and Argon Matrices at 4 K. Comparison with ab Initio SCF and Cl Calculations". The Journal of Physical Chemistry. 99 (46): 16842–16848. doi:10.1021/j100046a009.
- ^ a b Tague, Thomas J.; Andrews, Lester (1994). "Reactions of Pulsed-Laser Evaporated Boron Atoms with Hydrogen. Infrared Spectra of Boron Hydride Intermediate Species in Solid Argon". Journal of the American Chemical Society. 116 (11): 4970–4976. doi:10.1021/ja00090a048.