ISSN:
1573-1111
Keywords:
Crystal structure
;
crown ether
;
aminosulfuric acid
;
host-guest complex
;
H-bond
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The title compounds were prepared by treating a methanol solution of the corresponding crown ether with an aqueous solution of aminosulfuric acid. Crystals of [benzo-18-crown-6·H2NSO2OH] suitable for X-ray crystallography were obtained by recrystallization from methanol. The crystals are orthorhombic, space groupP212121,a = 14.310(7),b = 12.516(4),c = 10.890(4) Å. Refinement led to a final conventionalR value of 0.051 for 909 reflections. Crystals of [18-crown-6·H2NSO2OH] suitable for X-ray crystallography were obtained by recrystallization from acetone. They are orthorhombic, space groupP212121,a = 17.027(6),b = 14.866(5),c = 8.345(4) Å. The structure was solved by a heavy atom method and refined to an agreement value of 0.067.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01073679
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