Jmol, an open-source Java viewer for chemical structures in 3D with features for chemicals, crystals, materials and biomolecules.
|Open Jmol Menu||
Ctrl + Left Click
Left Click on Logo
|Rotate Around X,Y||Left Click and Drag|
Move along X,Y
Shift + Left Double-Click and Drag
Middle Double-Click and Drag
Ctrl + Right Click and Drag
* Works both when clicking on the molecule or away from it.
|Reset and Center||
Shift + Left Double-Click
* Only works if double-click is done away from the molecule.
|Rotate Around Z||
Shift + Left Click and Drag Horizontally
Middle Click and Drag Horizontally
Shift + Right Click and Drag Horizontally (possibly fails on OS X)
|Zoom In / Out||
Shift + Left Click and Drag Vertically
Middle Click and Drag Vertically
Use Mouse Wheel