[texhax] Chemistry molecular structures

[Luís Vitório Cargnini]

hi,
someone could help me with \startchemistry \stopchemistry and \chemical[]{}
i don'tknow nothing about this and i need this stuff to make my papres on bioinformatics, please someone could help me or sent docs or pointers to where i can found the help 8-).
example: i don't know the parameters of \chemical[XX,XX]{C_{3}}....
how to center an molecular display ?

-- 
Thanks && Regards
Luís Vitório Cargnini
Master Degree Student @ PUC-RS
Computer Science Bacharelor
PUC-RS
Pontifícia Universidade Católica - Rio Grande do Sul
Brasil
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