Crystal structure, thermal analysis and IR spectrometric investigation of bis(o-anisidinium) sulfate (C7H10NO)2SO4

Abstract Chemical preparation, X-ray single-crystal, thermal behaviour, and IR spectroscopy investigations are given for a new organic cation sulfate (C 7 H 10 NO) 2 SO 4 (denoted BOAS) in the solid state. This compound crystallizes in the monoclinic space group P 2 1 / c . The unit cell dimensions are: a  = 7.010(3) A, b  = 11.142(5) A, c  = 20.770(8) A, β  = 95.27(3)° with V  = 1615.4(12) A 3 and Z  = 4. The structure has been solved using a direct method and refined to a reliability R factor of 0.047. The title compound consists of a framework of isolated SO 4 tetrahedral interleaved with organic molecules, so as to build isolated ribbons parallel to a -axis. In the present work, we describe the crystal structure, thermal behaviour and IR analysis of this new compound.