User guide

Message Description
Filled valences include sum of bond orders, charge, radicals, and free sites.
Aromatic bonds count 1.5 each, rounded down unless it is the only bond to
the atom. Charge is signed and includes charge implied by dative bonds.
The Substituents query property treats free sites, up to and exactly the
same way: an atom with two explicit bonds and “Substituents: Up To 3” or
“Substituents: Exactly 3” or “Substituents: Free Sites 1” has three filled
valences.
An atom in this label has an invalid
valence.
Displayed in cases where a place cannot be found to place a bond or a bond
cannot be found to place an atom. Valid valences for each element are
listed in the Isotopes Table file.
ChemDraw can’t interpret this
label.
Displayed when text is found that cannot be identified as an element, nick-
name, generic nickname, or alternative group name.
Parentheses don’t match. Displayed when parentheses cannot be matched into nested open-close
pairs.
This label has conflicting or unas-
signable charges.
Displayed when a plus and minus charge have been assigned to the same
element, charges have been assigned in more than one way, or a charge
has been assigned to a nickname, generic nickname, or Alternative Group
name.
Formula cannot be computed for
queries.
Displayed for every label that contains a generic nickname, an element list
or an alternative group. This is a status message only; analysis continues
as if the problematic label were not selected.
Text not in Formula style won’t be
interpreted.
Displayed for the first caption that is not an atom label or Alternative Group
name, and which contains any text not in Formula, Subscript, or Super-
script style. This is a status message only, and appears only once regard-
less of how many captions are in the selection.
This named alternative group con-
tains no attachment point.
Displayed for any structure within an Alternative Group Box where the struc-
ture lacks an attachment point. This is a status message only.
This named alternative group con-
tains fragments with inconsistent
valences.
Displayed for any Alternative Group Box whose contained structures have
varying numbers of attachment points. Since all structures within an Alter-
native Group Box are to be used interchangeably, they must have the same
number of attachments. This is a status message only.
This named alternative group con-
tains no fragment.
Displayed for any Alternative Group Box that is empty. This is a status mes-
sage only.
ChemBioDraw 13.0
Chapter 15: Chemical interpretation 299 of 401