ASYM

SYMMETRY TOOLS

PLATON HOMEPAGE

PURPOSE

• Reflection data averaging into unique set.
• Elimination of systematic extinction reflections
• Display of the intensity weighted reciprocal lattice planes.
• Generation Unique SHELXL.HKL formatted reflection file.

A default operation can be invoked via a left-button-click on ASYM.

Invocation of ASYM from the keyboard gives access to additional options:

ASYM (AVF) (ZONEX/ZONEY/ZONEZ) (LIST 0/1/2/3) (THM thm) (VIEW)

where:

• AVF will instruct to average Friedel/Bijvoet reflections for non-centrosymmetric structures as well.

• ZONEX Zones are displayed in layers with constant H

• ZONEY Zones are displayed in layers with constant K

• ZONEZ Zones are displayed in layers with constant L

• LIST Various degrees of output (default = 3 = all).

• THM Maximum theta-max.

• VIEW Generate graphic display of reciprocal lattice plane

Required data files: e.g. shelxl.ins & shelxl.hkl.

See also ASYM-VIEW & Example

SYMMETRY TOOLS

PLATON HOMEPAGE