Gruppo Utilizzatori Italiani di TeX

unbonpetit

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  • 2 Febbraio 2011 alle 17:59 in risposta a: Legame dativo con Xymtex #55471
    unbonpetit
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      Thanks a lot!
      But i really didn’t saw anything like that into the pdf manual, i guess i have to read it better 🙂

      Sure! 😛

      It has to see with the “@” char which put a global tikz node (i.e. the node exists after the molecule has been drawn). With the “\chemmove” macro, you can do what you want with these “global nodes”: draw an arrow, a curved bond, or anything possible with tikz.

      2 Febbraio 2011 alle 17:18 in risposta a: Legame dativo con Xymtex #55469
      unbonpetit
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        I suggest you to read the manual another time and use the “@” char 😛 which allow to di almost everything.
        Compile this code twice :
        `\documentclass{article}
        \usepackage{chemfig}
        \begin{document}
        \chemfig{@a\lewis{2:,N}(-[:-20]H)(-[:-75,0.8]H)(-[:-160]H)-[@{b,1}2,,,,draw=none]H\rlap{${}^+$}}
        \chemmove{\draw[-stealth,shorten <=5pt](a)--(b);} \end{document}`

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