86022-60-8Relevant academic research and scientific papers
Molecular structure and vibrational circular dichroism of tris(trans-1,2-cyclopropanediyldimethylene) diborate, a new, stable bridged borate ester
Heintz,Freeman, Wade A.,Keiderling
, p. 2319 - 2324 (2008/10/08)
In this paper are presented the preparation, properties, crystal structure, and infrared, Raman, and vibrational circular dichroism (VCD) spectra of the title compound, a novel triply bridged diborate ester, B(OCH2C3H4CH2O)3B. This compound is unusually resistant to hydrolysis and crystallizes in the hexagonal system, space group P63, with a = 11.294 (3) ?, c = 7.644 (4) ?, and Z = 2. Its structure was solved by direct methods and refined to a conventional R factor of 0.074 for 1290 unique data. The molecule has C3 symmetry with the cyclopropane bridges imposing helicity. The IR, Raman, and VCD spectra can be correlated to those of previously studied disubstituted cyclopropanes. Very large VCD signals were observed which appear to arise from coupling of the symmetry-related parts of the molecule.
