ISSN:
1572-8854
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The structures of 1,1,2,2-tetraphenylethane-1,2-diol and its 1∶2 molecular inclusion complex with dmso have been elucidated by X-ray crystallography from single crystal diffraction data. Crystals of the host, compound I, are monoclinic, space groupP21/n, witha=17.669(6) Å,b=6.144(6) Å,c=17.873(6) Å,β=92.67(3)°,z=4. Crystals of the clathrate, compound II, are triclinic,P¯1, witha=9.138(5) Å,b=18.384(6) Å,c=18.496(3) Å,α=61.16(2)°,β=83.22(3)°, γ=88.06(3)°,Z=4. Both structures were solved by direct methods and refined to finalR values of 0.072 and 0.107, respectively. Compound I is partially disordered and its packing is governed by strong intermolecular hydrogen bonds. Compound II is characterized by crossing channels which accommodate the guest dmso molecules. The thermal properties of the latter compound have been characterized by DTA and TGA thermograms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01185348
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