/usr/share/avogadro/fragments/amines/ is in avogadro-data 1.2.0-1+deb9u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/avogadro/fragments/amines/1H-azepine.cml
/usr/share/avogadro/fragments/amines/2-aminopropane.cml
/usr/share/avogadro/fragments/amines/S-sec-butylamine.cml
/usr/share/avogadro/fragments/amines/ammonia.cml
/usr/share/avogadro/fragments/amines/azepane.cml
/usr/share/avogadro/fragments/amines/diethylamine.cml
/usr/share/avogadro/fragments/amines/dimethylamine.cml
/usr/share/avogadro/fragments/amines/ethylamine.cml
/usr/share/avogadro/fragments/amines/methylamine.cml
/usr/share/avogadro/fragments/amines/piperazine.cml
/usr/share/avogadro/fragments/amines/piperidine.cml
/usr/share/avogadro/fragments/amines/pyrrolidine.cml
/usr/share/avogadro/fragments/amines/tert-butylamine.cml
/usr/share/avogadro/fragments/amines/triethylamine.cml
/usr/share/avogadro/fragments/amines/triethylenediamine.cml
/usr/share/avogadro/fragments/amines/trimethylamine.cml