Generic Query Atom

    MarvinSketch supports the following types of generic query atoms:

    Name Description
    A Any atom except hydrogen
    AH Any atom including hydrogen
    Q Heteroatom (any atom except hydrogen and carbon)
    QH Heteroatom 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.