Marvin JS Drawing Modes

Whether you are using Marvin JS to display chemical structures and reactions or to have your students draw them, you need to select the correct drawing mode for your drawing.

ReferenceInstructor HelpWebAssign

The following table describes the Marvin JS drawing modes that are available in WebAssign:

Drawing Mode	Hydrogens	Atom Labels	Usage / Notes
Complete	Explicit	All atoms	Draw the entire molecular structure, including hydrogens.
Condensed	Implicit		Especially for organic chemistry, draw the molecular structure except for hydrogens.
Lewis			Draw Lewis structures. Lone pairs and radicals: explicit, displayed Formal atomic charges: explicit, displayed
Mechanism			Draw reaction mechanisms showing the movement of electrons. Lone pairs and radicals: explicit, displayed Formal atomic charges: explicit, displayed
Mechanism Advanced		H: only for heteroatoms C: no Other atoms: yes	Draw reaction mechanisms showing the movement of electrons.
Reaction			Draw chemical reactions. Displays molecules like condensed mode, but lets you add a reaction arrow and + signs among the reactants and the products.
Reaction Advanced
Resonance			Draw resonance structures. Lone pairs and radicals: explicit, displayed Formal atomic charges: explicit, displayed
Skeleton			Draw complex organic molecules.
Skeleton Advanced			Draw complex organic molecules.
Spacefill		None	Can be rotated in three dimensions.
3D			Can be rotated in three dimensions.

Advanced Modes

Use the three advanced modes to show additional tools for your students in higher-level chemistry courses.