.H+ |
Increases the number of total hydrogens (total number of hydrogen substituents). |
.H- |
Decreases the number of total hydrogens (total number of hydrogen substituents). |
.v+ |
Increases the number of valence (total bond order). |
.v- |
Decreases the number of valence (total bond order). |
.X+ |
Increases the number of connections (number of substituents including hydrogens). |
.X- |
Decreases the number of connections (number of substituents including hydrogens). |
.R- |
Increases the number of rings (number of rings the atom is a member of). |
.R+ |
Decreases the number of rings (number of rings the atom is a member of). |
.r+ |
Increases the smallest ring size (size of the smallest ring the atom is a member of). |
.r- |
Decreases the smallest ring size (size of the smallest ring the atom is a member of). |
.rb+ |
Increases ring bond count (number of ring bonds next to the atom). |
.rb- |
Decreases ring bond count (number of ring bonds next to the atom). |
.s+ |
Increases substitution count (number of non-hydrogen and isotopic hydrogen substituents). |
.s- |
Decreases substitution count (number of non-hydrogen and isotopic hydrogen substituents). |
.h+ |
Increases the number of implicit hydrogens (number of implicit hydrogen substituents). |
.h- |
Decreases the number of implicit hydrogens (number of implicit hydrogen substituents). |
.D+ |
Increases degree (equivalent to substitution count: number of non-hydrogen and isotopic hydrogen substituents). |
.D- |
Decreases degree (equivalent to substitution count: number of non-hydrogen and isotopic hydrogen substituents). |
.u |
Marks as an unsaturated atom (atom has double, triple or aromatic bond). |
.a/A |
Marks as aromatic/aliphatic (has aromatic bond). |