Chem3D Users Manual - CambridgeSoft

Administrator
If you want to
display …
information relative to
other selected atoms,
such as the distance
between two atoms,
the angle formed by
three atoms, or the
dihedral angle formed
by four atoms.
Then Select…
measurement formed by all
the selected atoms appears.
Measurements
• Select two non-bonded atoms and point to one
of them.
The interatomic non-bonded distance appears in
the last line of the pop-up window.
For example, in the cyclohexane model below,
when you select two non-bonded atoms and point
to one of them, the interatomic non-bonded
distance appears in the last line of the pop-up
window.
the distance between
the atoms attached by a
bond in angstroms
the bond orders
calculated by Minimize
Energy, Steric Energy,
or Molecular
Dynamics
the partial charge
according to the
currently selected
calculation
Bond Length.
Bond Order.
Bond orders are usually
1.000, 1.500, 2.000, or
3.000 depending on
whether the bond is a
single, delocalized,
double, or triple bond.
Computed bond orders
can be fractional.
Partial Charge.
See “Displaying
Molecular Surfaces” on
page 64 for information
on how to select a
calculation.
Non-Bonded Distances
To display non-bonded atoms measurements:
Measurement Table
Another way to view information about your model
is to activate the Measurement Table. This table can
display internal measurements between atoms in
your model in various ways.
To display internal measurements:
1. From the View menu, click Measurement Table.
A blank table appears in the Tables window.
2. From the Structure menu, point to
Measurements and select a measurement to
display.
The measurement values appear in the table.
106•Inspecting Models
CambridgeSoft
Measurement Table