Volume 1 Chapter 3 Menu Overview
Having built your fragment, you could select DEFINE-STRUCTURE to declare that the formulation is complete, and then use the QUEST sub-menu to specify the logical combination of tests required to start the search.
The 8 most frequently-occurring elements within the database (C, N, O, S, P, Cl, Br and F) are accessible directly from the BUILD menu. The PERIODIC-TABLE sub-menu, accessible via the OTHER option, allows you to choose any of the remaining elements, simply by clicking on an element symbol.
In addition, 31 element group symbols are available. For example, the symbol 7A corresponds to "any halogen atom".
Finally, within this sub-menu, users may define element groups of their own, using the ELDEF command.
QUEST3D contains 26 pre-defined chemical functional groups which you may use to speed up the building of your search fragment. The GROUPS sub-menu allows you to choose one of these functional groups as the "current element" for the BUILD menu.
QUEST3D is currently distributed with a total of 168 pre-defined templates which you may use to save time in building a fragment.
These templates are divided into 20 sets, mainly by chemical class. The TEMPLATES sub-menu is displayed when you select TEMPLATES in the BUILD menu. Select the required set and then choose the individual template you require.
