Problem with reactions of the form R -> 2R

[LoosC]

How can I provide a reaction of the type R -> 2R? If I write it like:

System.reaction(1).educt = [R];
System.reaction(1).product = [2*R];
System.reaction(1).propensity = k;

It does not return an error, but the solution is not what is to be expected.

Thanks for your help!

[CERENADevelopers]

Thanks for bringing up this question. The definition you provided above will indeed result in wrong solutions. Currently, the right way to specify such reaction is as below:

% Reaction R -> 2R:
System.reaction(1).educt = [R];
System.reaction(1).product = [R;R];
System.reaction(1).propensity = k;

Generally, if there are N instances of the same species in reactants or products, you should repeat that species N times in the System.reaction(i).educt or System.reaction(1).product vector.