Crown inclusion compounds with 3,4-diamino-1,2,5-oxadiazole. X-ray structures of its 1 : 1 inclusion complexes with 15-crown-5 and benzo-15-crown-5

Authors
Luboradzki, R Lipowski, J Simonov, YA Fonari, MS Ganin, EV Yavolovskii, AA
Citation
R. Luboradzki et al., Crown inclusion compounds with 3,4-diamino-1,2,5-oxadiazole. X-ray structures of its 1 : 1 inclusion complexes with 15-crown-5 and benzo-15-crown-5, J INCL P MA, 40(1-2), 2001, pp. 59-65
Citations number
24
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
ISSN journal
13883127 → ACNP
Volume
40
Issue
1-2
Year of publication
2001
Pages
59 - 65
Database
ISI
SICI code
1388-3127(200106)40:1-2<59:CICW3X>2.0.ZU;2-R
Abstract
The X-ray crystal structures of two closely related molecular complexes of 15-crown-5 and benzo-15-crown-5 with 3,4-diamino-1,2,5-oxadiazole are repor ted (I and II). Both complexes are of 1:1 stoichiometry with the host-guest alternation in the infinite chains formed due to the unsymmetrical H-bondi ng patterns between the components. Crystals of I are monoclinic, P2(1)/c, a = 7.856(3), b = 12.994(1), c = 16.033(1) Angstrom, beta = 94.79(2)degrees , Z = 4, final R-factor is 0.0488. Crystals of II are orthorhombic, P2(1)2( 1)2(1), a = 8.260(4), b = 15.692(5), c = 13.955(7) Angstrom, Z = 4, final R -factor is 0.0522.