# Support for QChem w. periodic boundary conditions (QCPBC)

**URL:** <https://discuss.avogadro.cc/t/support-for-qchem-w-periodic-boundary-conditions-qcpbc/7538>\
**Category:** Suggestions\
**Created:** [October 1, 2026, 3:45pm UTC](https://discuss.avogadro.cc/t/support-for-qchem-w-periodic-boundary-conditions-qcpbc/7538 "2026-10-01T15:45:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Juanes](https://discuss.avogadro.cc/user_avatar/discuss.avogadro.cc/juanes/32/2256_2.png) [@Juanes](https://discuss.avogadro.cc/u/Juanes)\
**Post date:** [October 1, 2026, 3:45pm UTC](https://discuss.avogadro.cc/t/support-for-qchem-w-periodic-boundary-conditions-qcpbc/7538/1 "2026-10-01T15:45:56Z")

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While on the subject of periodic calculations, QChem is currently developing the infrestructure for periodic calculations (QCPBC). Would it be possible to extend support to these outputs? In this example, I conceive just reading the unit cell and lattice vectors and plotting the band structure.

[DOS\_smaller.out](https://discuss.avogadro.cc/uploads/short-url/qHoEcmyuli8q6OJr2OUdDQEsfIo.out) (28.9 KB)