Investigation of Donepezil (form III)
Martin
Vickers
26th January 2005
Experimental Data
Click image to access powder diffraction data (.spf format)
Chemical Name
1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl] methylpiperidine hydrochloride
Chemical Formula
C24H29NO3 · HCl |
|
Preparation and Instrumentation Parameters
- Stoe StadiP transmission (capillary) Powder Diffractometer
- Cu Kα1 X-ray radiation
- Pre-sample germanium monochromator
- 40kV/30mA generator power
- Linear Position Sensitive Detector 6° 2θ range
- Rotating 0.5mm sample capillary
- uncrushed, unsieved sample
- NBS Silicon (111 reflection) calibration
- Data aquisition details:
- Date collected: 17/12/04
- File: ST1219.RAW
- from 5 to 35° 2θ
- PSD step: 0.1°
- Count Time: 90 seconds per step
- Binning: 4 channels per point
- Data Step: 0.02°
Results
- Indexed using ITO12
- Refined lattice parameters by Lebail fit:
| Unit Cell Lengths (Å): |
|
a 14.353(1) |
b 11.836(1) |
c 13.555(1) |
|
| Unit Cell Angles (°): |
|
α 90 |
β 107.729(3) |
γ 90 |
| Unit Cell Volume (Ų): |
| 2193 |
- Z: 4
- System: Monoclinic
- Possible Space Group: P21/c
Reference
European Patent EP1211243