How to draw
- You can draw structures consisting of Carbon
atoms and single bonds
when the Bond button is pressed.
- To change a single bond to
double or triple,
select the Bond button
and click on the bond once or twice.
- To change an atom,
press an atom button such as B,
N, O,
F, etc. and then click on the atom.
- To increase or decrease a charge,
select + or - and
click on the atom.
- Red underline means
that you made a valence error.
Undo and Redo
- Operations can be reverted with Undo and
Redo.
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How to delete
- To delete the selection,
press Erase.
- To delete atoms or bonds one by one,
- be sure there is no selection,
- press Erase,
- click on the atoms/bonds
- To delete everything in a rectangle,
- press Erase,
- press and hold down the mouse button while selecting the rectangle
- release the button
- To delete a nonrectangular area,
- press Erase,
- click on the mouse button and move the mouse pointer around the fragment
- click again
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Selecting
- Press the Select button
.
- To select or unselect an atom,
click on it.
- To select a fragment,
double click on an atom or bond or it.
- Lasso selection:
Click on the mouse button and move the mouse pointer around the fragment.
Click again when you are ready.
- Rectangle selection:
Hold the mouse button down while selecting.
- To unselect all the atoms, click on the sketchboard
somewhere outside the structure.
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Moving and Rotating
- To move an atom, drag it with the mouse in
Select mode.
- To move the selection,
- move the mouse pointer towards the center
until a blue rectangle appears,
- drag the selection by pressing and holding down the mouse button.
- To rotate the selection,
- move the mouse pointer towards the "edge"
until a blue gear appears,
- drag the selection by pressing and holding down the mouse button.
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More atom and bond types
- Press More for
periodic table,
query atoms, or extra bond types.
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Hydrogen labels
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