MarvinSketch supports the following types of Generic Query Atoms:
|A||Any (any atom except hydrogen)|
|AH||Any atom, including hydrogen|
|Q||Hetero (any atom except hydrogen and carbon)|
|QH||Hetero atom or hydrogen (any atom except carbon)|
|M||Metal (contains alkali metals, alkaline earth metals, transition metals, actinides, lanthanides, poor(basic) metals, Ge, Sb and Po)|
|MH||Metal or hydrogen|
|X||Halogen (F,Cl,Br or I)|
|XH||Halogen or hydrogen|
Generic Query Atoms can be added to a query structure to include a wide range of elements. For a more detailed description of this please see the Query Guide.
To add a Generic Query Atom to the molecule, select one of the Generic Query Atom types from the Periodic Table and place it on the canvas.