# How to eliminate ring distortion in chemfig

I am trying to draw a molecule with two connecting pentagonal rings. This is what I have so far:

\begin{figure}
\chemfig{
O=_[1,,]*5([::-45]-O-Cu*5([::-72]-NH_2--(=^[1,,]O)-O-)-NH_2--)
}
\caption{\textit{trans}-bisglycinatocopper(II)}
\label{fig:trans-bisglycinatocopper(II)}
\end{figure}


Which gives me:

I try to fix it by adding [,,1] to the bond after NH2:

\begin{figure}
\chemfig{
O=_[1,,]*5([::-45]-O-Cu*5([::-72]-NH_2-[,,1]-(=^[1,,]O)-O-)-NH_2--)
}
\caption{\textit{trans}-bisglycinatocopper(II)}
\label{fig:trans-bisglycinatocopper(II)}
\end{figure}


Which gives me:

I understand that in the notation [,,1], 1 is the atom of departure for the bond.

How do I get the ring to be a regular pentagon, while also preventing the bond from overlapping the formula?

I figured it out, the options for the bond has a fourth option. I needed to add [,,,2] to the bond preceding NH2 to indicate that it should connect to the second atom:
\begin{figure}