\begin{forest}
for tree={
if level=0{align=center}{% allow multi-line text and set alignment
align={@{}C{45mm}@{}},
},
grow=east,
draw,
% font=\sffamily\bfseries,
edge path={
\noexpand\path [draw, \forestoption{edge}] (!u.parent anchor) -- +(5mm,0) |- (.child anchor)\forestoption{edge label};
},
parent anchor=east,
child anchor=west,
l sep=10mm,
tier/.wrap pgfmath arg={tier #1}{level()},
edge={ultra thick, rounded corners=2pt},
fill=white,
rounded corners,
top color=white,
bottom color=white,
},
forked edges
[A
[\chemfig{-Si-}
]
[B2
]
]
! Package pgf Error: No shape named n2-1 is known.
Ich gehe mal davon aus, dass das an den Strichen liegt?
Hat da jemand eine Idee?

