R. Dinnebier, M. Pink, J. Sieler
Sep 1, 1998
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Journal
Inorganic Chemistry
Abstract
We report the ab initio structure solutions of two solvent containing potassium phenoxides by high-resolution powder X-ray diffraction. Both compounds are of interest for the classification of the mechanism of Kolbe−Schmitt type reactions. C6H5OK·2C6H5OH crystallizes in space group Abm2, Z = 4, with unit cell parameters a = 10.12458(4) A, b = 21.2413(1) A, c = 7.89784(3) A. C6H5OK·3C6H5OH crystallizes in space group Pbca, Z = 8, with unit cell parameters a = 22.7713(1) A, b = 25.4479(2) A, c = 7.75549(4) A. Both compounds show polymeric zigzag chains [K[6]O2[2]O[1]π(phenyl)[1]] aligned along the c-axis. The coordination of the potassium ions is similar for both compounds. They lie at the center of distorted octahedra of five oxygen atoms and one phenyl ring, which donates its π electrons. The distortion decreases as the number of free phenol increases.