The JME Drawing Applet
The JME drawing applet is included below. The program will generate
a "smiles" string (a text-based representation of the molecule) from your
line-drawing automatically when you submit an answer,
and then use this smiles string to check if the structure is correct.
To use the editor, the second row of buttons is used for drawing the
molecule. It is easiest to draw in the entire structure as carbon atoms
first using:
-
a single bond with the
button.
-
a double bond using the
button
-
or a triple bond using the
button
-
note, you can generate a double or triple bond from a single bond by
clicking on an existing single bond with the single bond button activated
-
you can use any of the ring template buttons to add a ring i.e.
will add a cyclopropane ring
-
The butane chain button can be used to draw to chain of C atoms
-
The wedge,
is for indicating the 3-D location of atoms, or their stereochemistry
-
then secondly change atom types by using the appropriate atom type
button (on the left side of the applet, i.e.
to change to an oxygen atom) by clicking on an existing C atom.
Note: do NOT use the X button.
- Note: multivalent nitrogen groups, such as nitro, azide, N-oxide,
nitrile etc, should be drawn with a pentavalent nitrogen as shown below
(if not the program will not recognize the correct answer, in most cases
the software will convert to the approperiate structure automatically).
Errors can be removed by:
- using the delete button,
to remove atoms or bonds one at a time
- using the clear button,
to delete the entire structure
- using the undo button,
to undo the last change in the structure
If you have never used the JME applet you should try it now.
If you need some practice follow this
link.