First structural characterization of a boron-centered radical: x-ray crystal structure of (Li(12-crown-4)/sub 2/)/sup +/(BMes/sub 3/)/sup -/. [BMes/sub 3/ = B-2,4,6-Me/sub 3/C/sub 6/H/sub 2/]
Journal Article
·
· J. Am. Chem. Soc.; (United States)
In this paper the authors present the first structural determination of a free (BAr/sub 3/)/sup -/ radical anion which was crystallized as the crown ether salt (Li(12-crown-4)/sub 2/)/sup +/(BMes/sub 3/)/sup -/. The crystal structure was determined to establish the existence of (BMes/sub 3/)/sup -/ as a free noninteraction radical anion. Although the structure of the precursor, BMes/sub 3/, was already known and not in doubt the authors redetermined its structure at 130 K to enable an isothermal comparison with the crown ether salt. The data obtained show that the addition of one electron to the BMes/sub 3/ system has a small effect on its ground-state structure. Apart from the slight lengthening of the B-C bonds, the remaining structural parameters are virtually identical.
- Research Organization:
- Univ. of California, Davis
- OSTI ID:
- 5658850
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:14; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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OSTI ID:5844759
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Journal Article
·
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Journal Article
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
ANIONS
BOND ANGLE
BOND LENGTHS
BORON COMPLEXES
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
DIMENSIONS
EXPERIMENTAL DATA
GLYCOLS
HYDROXY COMPOUNDS
INFORMATION
IONS
LENGTH
LITHIUM COMPLEXES
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANOMETALLIC COMPOUNDS
POLYETHYLENE GLYCOLS
POLYMERS
SCATTERING
X-RAY DIFFRACTION
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
ANIONS
BOND ANGLE
BOND LENGTHS
BORON COMPLEXES
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
DIMENSIONS
EXPERIMENTAL DATA
GLYCOLS
HYDROXY COMPOUNDS
INFORMATION
IONS
LENGTH
LITHIUM COMPLEXES
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANOMETALLIC COMPOUNDS
POLYETHYLENE GLYCOLS
POLYMERS
SCATTERING
X-RAY DIFFRACTION