On Fri, 12 Feb 1999, Armel Le Bail wrote:
> I would be happy to see a pattern of anything containing non
> negligible quantities of V, Cr, Mn, Fe, Co, Ni with your
> system, unless you have also a Peltier cooled solid state detector ?
> If you want a sample, let me know.
Well Armel, things are not as bleak as you pretend at the moment. In
Oxford I used a standard Siemens D5000 with primary monochromator and we
measured routinely 3d elements. I must admit that at times you get a
rather horrible and high background, but the refinements are in general
fine, with standard deviations not too different from our other samples.
Normally we measure for about 24hrs.
Do you want some references, Chem. Mater. 1997, 9, 552-9; Inorg. Chem.
1998, 37, 6071.
>
> Using K alpha 1+2 is full of advantages, including higher flux,
> lower cost.
>
Sure! And you can allways fit a peak with consists out of two components,
but at times you can be really struggeling to find out whether you see
peak splitting due to alp1/alp2 or due to a slight reduction in symmetry
or stcking faults. If you can rule out the machine straight away, than
life becomes a bit easier.
Best wishes!
Jaap Vente
Cinvestav-IPN Unidad Merida
Departamento de Fisica Aplicada
Carretera Ant. a Progreso km 6
Apartado Postal #73 Cordemex
Merida, Yucatan, 97310
Mexico
Fax: (..) 52 - 99 - 812917
Tel: (..) 52 - 99 - 812960 ext 246/233
e-mail: [EMAIL PROTECTED]
