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enter image description here

Hello everybody. As you all can see the curved arrow doesn't point to the positive carbon as it should, but it kink of turn around the bond. How can I solve this? Thanks in advance for any answer!

\schemestart
\chemfig{@{a2}C^{\oplus}(-[:90]CH_3)(-[:180]CH_3)(-[:270]CH_3)}\chemfig{\+ @{a1}Cl^{\ominus}}\arrow{<=>}\chemfig{C(-[:0]Cl)(-[:90]CH_3)(-[:180]CH_3)(-[:270]CH_3)}
\schemestop
\chemmove{\draw(a1)..  controls +(100:5mm) and +(145:5mm)..  (a2);}
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  • Try @{a2}{C^{\oplus}} instead.
    – user121799
    Nov 7 '18 at 19:10
  • Nothing changed
    – user66094
    Nov 7 '18 at 19:17
  • 1
    Well, you can try to draw to (a2.east) in addition, and if that doesn't help, please provide a complete minimal working example.
    – user121799
    Nov 7 '18 at 19:20
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You should write instead

\schemestart
\chemfig{@{a2}C^{\oplus}(-[:90]CH_3)(-[:180]CH_3)(-[:270]CH_3)}\chemfig{\+ @{a1}Cl^{\ominus}}
\arrow{<=>}\chemfig{C(-[:0]Cl)(-[:90]CH_3)(-[:180]CH_3)(-[:270]CH_3)}
\schemestop
\chemmove{\draw(a1)..  controls +(100:5mm) and +(45:5mm)..  (a2);}

enter image description here

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