The crystal structure of a new boron selenide, B12Se2−xBx

摘要: Abstract A new boron selenide with the approximate composition B12SeB was prepared. This compound found to crystallize in B6P-type structure a = 5.9041(4) and c 11.947(1) . The space group is R 3 m. Boron atoms occupying two 18h positions form an icosahedral network, while selenium occupy position 6c, are situated elongated hole formed along trigonal axis. No substitution of for occurs within icosahedra. refinement performed using Rietveld method on X-ray powder diffraction data. final Bragg weighted profile R-values obtained were 0.0582 0.130 respectively.