ISSN:
1573-1111
Keywords:
crown ether
;
hydroquinone
;
complexation
;
crystal structures
;
hydrogen bonding
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Hydroquinone forms a 1 : 1 : 6 complex with 18-crown-6 and water. Crystals of this complex are monoclinic, space groupP21/a witha = 14.289(1),b = 7.972(1),c = 11.596(1) Å, β = 97.72(1)°,Z = 2,D c = 1.22 g cm−3. The hydroquinone and crown ether molecules lie on centres of symmetry with the crown in theD 3d conformation. The water molecules act as a bridge between hydroquinone and the crown ether. The structure consists of molecules linked by a 3-dimensional network of hydrogen bonds: the hydroquinone and two water molecules lie roughly in the (001) plane; the crown ether and four water molecules form bipyramidal structures which are stacked in layers alternating with the previous planes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01041194
Permalink
