Title: Lithium Tetrafluoroborate
CAS Registry Number: 14283-07-9
Synonyms: Lithium fluoroboride; lithium fluoborate
Molecular Formula: BF4Li
Molecular Weight: 93.75
Percent Composition: B 11.53%, F 81.06%, Li 7.40%
Line Formula: LiBF4
Literature References: Mild Lewis acid. Prepn: P. Baumgarten, W. Bruns,
Ber. 72, 1753 (1939); I. Shapiro, H. G. Weiss,
J. Am. Chem. Soc. 75, 1753 (1953). NMR structural study: E. C. Reynhardt, J. A. J. Lourens,
J. Chem. Phys. 80, 6240 (1984); 19F NMR study of soln behavior: V. N. Plakhotnik
et al., J. Fluorine Chem. 98, 133 (1999). Catalytic use in Diels-Alder reactions: D. A. Smith, K. N. Houk,
Tetrahedron Lett. 32, 1549 (1991); J. S. Yadav
et al., Synthesis 2001, 1065. Review of applications in organic synthesis: B. S. Babu, K. K. Balasubramanian,
Acros Org. Acta 7, 1-3 (2000).
Properties: White, crystalline, hygroscopic solid. Sol in water, methanol, acetonitrile. Soly in ether at 25°: 1.3 g/100 ml.
Use: Catalyst in organic synthesis; electrolyte for lithium ion batteries.
