Strontium selenide crystallizes in the orthorhombic crystal system with space group Fm3m. It has a NaCl structure. It transforms into a CsCl structure with a space group Pm3m under high pressure (14 GPa).
It reacts with mercury selenide and germanium diselenide at high temperature to obtain the SrHgGeSe4 crystal. It reacts with thorium and selenium at high temperature in the presence of tin to obtain SrTh2Se5.
↑Н. П. Лякишева, ed. (2000). Диаграммы состояния двойных металлических систем. Vol.3 Книга 2. М.: Машиностроение. ISBN5-217-02932-3.
↑Predel, B. (1998), "Se-Sr (Selenium-Strontium)", in Madelung, O. (ed.), Pu-Re – Zn-Zr, Landolt-Börnstein - Group IV Physical Chemistry, vol.5 J (Landolt-Börnstein - Group IV Physical Chemistryed.), Berlin/Heidelberg: Springer-Verlag, p.1, doi:10.1007/10551312_2714, ISBN978-3-540-61742-6, retrieved 2023-07-07