BeSiN2 is Chalcopyrite-like structured and crystallizes in the orthorhombic Pna2_1 space group. Be(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form BeN4 tetrahedra that share corners with four equivalent Be(1)N4 tetrahedra and corners with eight equivalent Si(1)N4 tetrahedra. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent Be(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Be(1) and two equivalent Si(1) atoms to form corner-sharing NBe2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent Be(1) and two equivalent Si(1) atoms to form corner-sharing NBe2Si2 tetrahedra.
BeSiN2 is Chalcopyrite-like structured and crystallizes in the orthorhombic Pna2_1 space group. Be(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form BeN4 tetrahedra that share corners with four equivalent Be(1)N4 tetrahedra and corners with eight equivalent Si(1)N4 tetrahedra. There is one shorter (1.77 Å) and one longer (1.78 Å) Be(1)-N(1) bond length. There is one shorter (1.76 Å) and one longer (1.78 Å) Be(1)-N(2) bond length. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent Be(1)N4 tetrahedra. Both Si(1)-N(1) bond lengths are 1.74 Å. There is one shorter (1.74 Å) and one longer (1.75 Å) Si(1)-N(2) bond length. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Be(1) and two equivalent Si(1) atoms to form corner-sharing NBe2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent Be(1) and two equivalent Si(1) atoms to form corner-sharing NBe2Si2 tetrahedra.