Using ChemFinder - CambridgeSoft

Administrator
Bond Type Description
Tautomeric same as S/D
D/A target must have a double bond or
an aromatic bond here
S/A target must have a single bond or
an aromatic bond here
Topology
If Ring or Chain is chosen, the target bond must or
must not be in a ring, respectively.
Reaction Center
The reaction center refers to those bonds that are
directly affected by a reaction. This property allows
you to specify just how a given bond is affected.
Property Description
Unspecified target must have a bond here,
but the bond can participate
in the reaction in any fashion,
or not at all
Center
Make/Break
target must have a bond here
that directly participates in
the reaction in some way
target must have a bond here
that is either made (if in a
product) or broken (if in a
reactant)
Property Description
Change target must have a bond here
whose bond order changes
over the course of the
reaction, but is not made or
broken
Make&Change target must have a bond here
that is either made (if in a
product) or broken (if in a
reactant) or whose bond
order changes over the course
of the reaction
Not Center target must have a bond here,
and that bond must not
participate in the reaction
Not Modified target must have a bond here,
and regardless of whether it is
part of the reaction center or
not, its order must not change
over the course of the
reaction
This property is only meaningful when searching a
reaction database.
A-8 • CambridgeSoft
Bond Properties