Volume 2 Chapter 2 2D-Constrain Sub-menu CHARGE

Function

CHARGE is used to specify the charge on an atom.

Example

Suppose we wish to search for methanides of the type:

Suppose we have built the fragment:

Select CHARGE

Please type the CHARGE: (e.g. +1; -2; 0; 49 = any - ; 50 = any charge; 51 = any +)
(Press <RETURN> to mean "Unspecified")
You may use multiple values, separated by SPACE or COMMA

Type -1 <R>
-1 appears in the CHARGE box

Move the cursor over the required ATOM and click a BUTTON.
(Select another command to end CHARGE)

Select C atom

The fragment is now:

If you later wish to remove the charge from the C atom:

Select CHARGE
Press <RETURN>
Select C atom

Note also that you can use multiple charges.

Thus -1, -2 would mean that an atom has a charge of -1 or -2.

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Volume 2 Chapter 2 2D-Constrain Sub-menu COMMENT .