ORTEP - DefineToEnd
 
With this option, a set of bonds originating from a central atom to
selected atoms will be replaced by a dash line to the corresponding 
centre of gravity.
In general, this function will be used for bonds between a metal and
atoms partaking in a unsaturated system (e.g. a C=C bond). 
Procedure:
- Click on the 'Define' menu box.
 - Click on base atom ( in general a metal)
 - Click on the atoms determining the centre of gravity to which
a substituting dashed bond has to be drawn.
 - Click on the 'End' field.
 
 
Alternatively issue the keyboard instruction:
DEFINE at1 TO at2 at3 at4 at5
 PLATON HOMEPAGE
22-Apr-2001 A.L.Spek