| Abstrakt: |
[C16H27N2O2]+·ClO4-·H2O,Mr=396.87, orthorhombicP212121a=13.708(4),b=16.930(7),c=8.311(3) Å,V=1928.3(13) Å3,Z=4,Dx=1.367(2) g cm-3,?(MoKa)=0.71068 Å,µ(MoKµ)=1.95 cm-1,F(000)=848,T=292 K,R=0.061 for 1324 unique reflections. RingsA,B,C,D have half-chair, chair, chair and chair conformations, respectively; the quinolizidone moietyA/E has a quasi-trans and the quinolizidine moietyC/D has a trans configuration. The cations are connected into chains along the crystallographic direction [001] by strong hydrogen bonds utilizing the water molecule: C(2)=O(5)?O(W)?O(6)-N(16) of 2.623(7) and 2.574(7) Å, respectively. The water molecule is also hydrogen-bonded to one oxygen atom of the perchlorate anion: O(W)?O(2) is 3.106(10) Å. A very short intramolecular distance between N(1) and O(6) of 2.696(7) Å, due to the quasitrans-trans configuration of thea-isolupanine skeleton, is observed. |
Full text from SpringerLink