Reaction Sites can be specified on bonds. Using the star cursor, point to each bond in turn that you want to assign a reaction site label to and click. The options are:
CC - this bond is completely changed, that is either formed or broken.
PC - this bond is partially changed, that is the bond value changes, for example an exact bond becomes normalized.
XC - the bond may be either completely or partially changed.
NC - the bond is unchanged.
NON - no reaction site specification is declared.
Note: Reaction tools are disabled for normal drawing modes. Select the Rxn Tool from the toolbar or choose Show Reactions from the Display Menu.
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