Acta Cryst. (2002). E58, o393-o395  [ doi:10.1107/S160053680200380X ]

A polycyclic condensate of phenylboronic and boric acids with N-hydroxypiperidine

W. Kliegel, K. Drückler, B. O. Patrick, S. J. Rettig and J. Trotter

Abstract: 1-Hydroxypiperidinium 16-hydroxy-6,6-pentamethylene-11,13,19-triphenyl-19-(1-piperidiniumoxy)-8,10,12,14,15,17,18,20-octaoxa-6-azonia-11,13,16-tribora-7,9,19-triboratatrispiro[5.0.1.5.3.3]icosane diethyl ether hemisolvate, C₃₃H₄₉B₆N₃O₁₁·0.5C₄H₁₀O, contains a tetracyclic ring system, with two boroxine, a BOBON, and a piperidinium ring spiro-fused; the diethyl ether solvent molecule is disordered over an inversion centre.

Online 15 March 2002

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