The crystal structure of the complex formed between SbCl3 and 15-crown-5(1,4,7,10,13-pentaoxacyclopentadecane,L) has been determined from X-ray diffractometer data by Patterson and Fourier methods. Crystals are orthorhombic, space group P212121, with Z= 4 in a unit cell of dimensions a= 7.575(1), b= 12.734(2), and c= 15.838(3)Å. The structure, refined to R= 0.033 for 1989 observed reflections, consists of discrete SbCl3L molecules in which antimony is sandwiched between essentially parallel planes containing five oxygens and three chlorines, respectively.
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Hough et al. (1987) studied this question.
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