Simple Jmol Manipulations: Practice commands on the ethane model below.

Rotate: click mouse, move mouse.

Zoom: depress SHIFT, click mouse, move mouse.

Translate: depress SHIFT. double click, move mouse.

Measurements:

• Bond Length: Place the cursor over an atom (hydrogen in ethane). Double click. A plus sign appears. Place the cursor over the attached carbon. The bond length appears in magenta nanometers. Double click. The bond length appears permanently in white.
• Bond Angle: Place the cursor over an atom (hydrogen in ethane). Double click. A plus sign appears. Place the cursor over the attached carbon. The bond length appears in magenta nanometers (1 Angstrom = 0.1 nm; Angstroms can be set in Menu/Measurements). Single click. Move the cursor to either the carbon or the attached hydrogen. The bond angles appear in magenta. Double click to display the bond angle permanently in white.
• Dihedral Angle: Follow bond angle instructions for four atoms (H-C-C-H).

Menu: Place cursor over Jmol logo, click once, OR place cursor over the field, depress CTRL then click mouse. [The Menu has more functions than are needed. The useful functions are in red.

Menu Select Render Scheme CPK Spacefill Ball & Stick Stick Wireframe Atoms > van der Waals Labels Color Zoom Spin On/Off Set X Rate Set Y Rate Set Z Rate Animate Measurements Nanometers (default) Angstroms Picometers Crystal Options Console About Jmol

Ethane (larger view)