SiC2N4 crystallizes in the cubic Pn-3m space group. Si(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded in a linear geometry to one Si(1) and one C(1) atom.
SiC2N4 crystallizes in the cubic Pn-3m space group. Si(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. All Si(1)-N(1) bond lengths are 1.69 Å. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. Both C(1)-N(1) bond lengths are 1.21 Å. N(1) is bonded in a linear geometry to one Si(1) and one C(1) atom.