Abstract
(I) N-Methyl-2,5,8,11,14,17,20-heptaoxa-25-azatetracyclo[19.7.5.0(24,32),0(26,30)]tritriaconta-1 (29),-21(33),22,24(32),26(30),27-hexaen-31-one trihydrate, C26H33NO8.3H2O, M(r) = 541.6, triclinic, P1BAR, a = 7.389 (1), b = 13.255 (1), c = 14.448 (2) angstrom, alpha = 88.60 (1), beta = 78.58 (1), gamma = 81.48 (1)-degrees, V = 1371.7 (2) angstrom 3, Z = 2, D(x) = 1.31 g cm-3, lambda(Cu K-alpha) = 1.54178 angstrom, mu = 8.68 cm-1, F(000) = 580, T = 291 K, R = 0.047 for 3376 observed reflections. (II) N-Methyl-2,5,8,11,14,17-hexaoxa-22-azatetracylco[16.7.5.0.(21,29).0(23,27)]triaconta-1 (26), 18(30), 19,-21(29),23(27),24-hexaen-28-one, C24H29NO7, M(r) = 443.5, triclinic, P1BAR, a = 8.426 (2), b = 11.420 (2), c = 11.739 (4) angstrom, alpha = 87.20 (3), beta = 79.33 (3), gamma = 77.88 (2)-degrees, V = 1085.3 (5) angstrom 3, Z = 2, D(x) = 1.36 g cm-3, lambda(Mo K-alpha) = 0.71069 angstrom, mu = 1.08 cm-1, F(000) = 472, T = 291 K, R = 0.039 for 3229 observed reflections. In these substituted acridone derivatives one molecule contains both a crown ether moiety with its complexing capabilities and a heterocyclic N atom able to modify these properties. In the two compounds, the crown ether chain is nearly perpendicular to the acridinic skeleton which is planar. In (I) the water molecules take part in hydrogen bonds with the crown ether [O37...O11 = 3.03 (1), O35...O36 = 2.81 (1) angstrom] and with each other [O36...O37 = 2.93 (1), O38...O36 = 2.84 (1), O38...O37 (x + 1, y, z) = 2.89 (1) and O38...O37 (1 - x, 1 - y, 1 - z) = 2.88 (1) angstrom]. The bond lengths suggest partial localization of double bonds in the benzene rings.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Acta Crystallographica Section C Crystal Structure Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.