17.11.2014 Views

ChemOffice.Com - CambridgeSoft

ChemOffice.Com - CambridgeSoft

ChemOffice.Com - CambridgeSoft

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

model is centered. You can rotate your model by<br />

rotating the sphere. You have a choice of free-hand<br />

rotation, or rotating around the X, Y, or Z axis.<br />

3. Release the mouse button when the model is<br />

orientated approximately like this:<br />

To perform free-hand rotation of the model with<br />

the Trackball tool:<br />

1. Click the Trackball tool .<br />

2. Point near the center of the model window and<br />

hold down the mouse button.<br />

3. Drag the cursor in any direction to rotate the<br />

model.<br />

CAUTION<br />

Users familiar with earlier versions of Chem3D should be<br />

aware of changed behavior: the Trackball tool rotates the<br />

view only, it does not change the atoms’ Cartesian<br />

coordinates.<br />

To rotate around an axis:<br />

1. Move the cursor to the edge of the model<br />

window.<br />

As you mouse over the edge of the window, the<br />

rotation bars will appear.<br />

Examine the atoms and bonds in the model using<br />

the Select tool.<br />

1. Click the Select tool .<br />

2. Move the pointer over the far left carbon.<br />

NOTE: Depending on how much you rotated the<br />

model, the far left carbon might be C(2).<br />

An information box appears next to the atom<br />

you are pointing at. The first line contains the<br />

atom label. In this case, you are pointing to<br />

C(1). The second line contains the name of the<br />

atom type, C Alkane.<br />

NOTE: Rotation bars are only available when you<br />

are using the Trackball tool.<br />

2. Drag on one of the bars to rotate the model on<br />

that axis.<br />

One of the bars is labeled “Rotate About Bond”.<br />

You won’t be able to select that one. You’ll<br />

cover rotating around bonds later.<br />

TIP: Once you start dragging, you don’t have to stay<br />

within the rotation bar’s boundaries. Your model will<br />

only rotate around the chosen axis no matter where you<br />

drag your mouse.<br />

<strong>ChemOffice</strong> 2005/Chem3D Chem3D Tutorials • 29<br />

Tutorial 2: Building Models with the Bond Tools

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!