Available Filters

•	3D coordinates determined: Switch on to exclude structures for which no 3D information is available.

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R-factor: Switch on the check button and then click on one of the three radio buttons to restrict the search to structures with R-factors less than or equal to 0.05, 0.075 or 0.1. If an R factor limit other than one of these is required, set up as a query using the Experimental dialogue box (see Using the Experimental Dialogue Box). If an R factor query and this filter are set at different levels, the more stringent (i.e. lower) of the two criteria will be used.

•	Not disordered: Switch on to exclude structures which contain crystallographic disorder (see Disordered Structures). This can also be done in the Experimental dialogue box (see Using the Experimental Dialogue Box).

•	No errors: Switch on to obtain only those structures which are error-free at the 0.05Å level.

•	Not polymeric: Switch on to exclude polymers and metal catena structures (see Polymeric Bonds).

•	No ions: Switch on to exclude structures containing ions. Zwitterions will not be excluded.

•	No powder structures: Switch on to exclude structures in which the data was obtained from a powder diffraction study (see Powder Data). This can also be done in the Experimental dialogue box (see Using the Experimental Dialogue Box).

•	Only Organics or Only Organometallics: Switch on the check button and then click on the appropriate radio button to restrict the search to (i) organic structures only, or (ii) organometallic structures only.