Crystal and molecular structure of 15-oxosparteine-N(1)-oxide perchlorate

Authors:

• Andrzej Katrusiak,
• Z. Kałuski

Abstract

[C₁₅H₂₅N₂O₂⁺·ClO₄^-, M_r=364.83, is monoclinic:P2₁, a=7.885(1), b=10.685(1), c=10.658(1) Å, β=105.63(1)°, V_c=864.8(2) ų, Z=2, D_x=1.39(1)g cm^-3, λ(Cu Kα)=1.54178 Å, μ(Cu Kα)=21.4 cm^-1, F(000)=388 e, T=292K, R=0.066 for 1205 unique reflections. The piperidine rings A, B, C, and D have chair, chair, boat, and half-chair conformations, respectively. The quinolizidine system (rings A/B) has a trans configuration. The cations are interconnected by a hydrogen bond O(N1)⋯O(C15) of 2.552(10) Å into chains along [010]. Atoms C(12) and C(13) from ring D of the cation are disordered. Very high thermal parameters of the oxygen atoms of the perchlorate anion may indicate its orientational disorder. © 1988 Plenum Publishing Corporation.