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    Synthesis and crystal structure of hexahydrobis[(1,3-p-dimethylaminobenzyl)-1,3-diazepinel-2-selenone, C23H32N4Se
    (Japan Soc Analytical Chemistry, 2003) Aygün, M; Çetinkaya, E; Gök, Y; Kendi, E; Çetinkaya, B
    In the title compound, C23H32N4Se, was synthesized and its crystal structure was determined by single crystal X-ray diffraction. The compound crystallizes in orthorhombic system, space group Pbca, a = 10.9960(10)Angstrom, b = 14.9460(9)Angstrom, c = 27.565(5)Angstrom and Z = 2. According to X-ray crystallographic studies, the diazepine ring is observed to be in a disordered state. The site-occupancy of the major compenent refined to 0.53(1). The C=Se bond length of 1.862(4)Angstrom is a double bond character. The dihedral angle between the two phenyl rings is 37.7(2)degrees.