Click the button next to "Bond Angle" and then click any three atoms. (In the example, click C, O, and H in that order.) The corresponding bond angle will appear in the text box.
Help for Chime Pages
If you have the Chime plugin correctly loaded, you should see a molecule and some buttons below:
| Identify Atoms | Bond Length | Bond Angle | Dihedral Angle (Torsion Angle) |
Rotating Models:
Place your cursor in the Chime window, click and hold the mouse button
and move the cursor
Model Display:
Windows: Right-click on the Chime window to access an options menu. (Macintosh: Click and hold on the Chime window.) Use the Display submenu to change the model display.
Identify Atoms:
Click the button next to "Identify Atoms" and then click any atom
in the Chime window. The atom label will appear in the text box below the buttons.
Bond Length:
Click the button next to "Bond Length" and then click any two
atoms. The distance between those atoms will appear in the text box (in
units of Angstroms).
Bond Angle:
Click the button next to "Bond Angle" and then click any three
atoms. (In the example, click C, O, and H in that order.) The corresponding
bond angle will appear in the text box.
Dihedral Angle (Torsion Angle):
Click the button next to "Dihedral Angle" and then click any four atoms. (In the example, click H, C, O, and H in that order.) The corresponding dihedral angle will appear in the text box.
Note: The most recent function remains active until you click another button.
Summary of Chime Mouse Controls
| Operation | Windows | Macintosh |
| Chime menu | Right-click | Click and hold |
| Rotate model | Left-click and drag | Click and drag |
| Spin model | Shift-Right-click and drag | Shift-Command and drag |
| Zoom | Shift-Left-click and drag (up and down) |
Shift and drag (up and down) |
| Move model | Control-Right-click and drag | Command and drag |