RT - Journal Article T1 - Synthesis and crystal structure determinationof SeCI21CI polyhalogene-Chalcogene JF - ijcmir YR - 2000 JO - ijcmir VO - 8 IS - 2 UR - http://ijcm.ir/article-1-856-en.html SP - 151 EP - 162 K1 - Syllth ese K1 - Crystal structure K1 - polyhalogene-chalcogene K1 - Selenium. AB - In this research, poly halogene-chalcogene SeCI2lCI was synthesised and the crystal structure was determint:d by !l singk ;ryslal X-ray diffraction method. This compound formed at temperature ranges from 70-1S00C as ruby-red color and crystallizes in monoclinic crystal sys tem, space group P2t/c with 4 molecules per unit cell. Lattice parameters of the compound are: a = 6.088 A b = 6.555 A c = 16.032 A a=y=90° f3 = 98.02° v = 633.5 A' In addition, n .T.A analysis of SeCI2ICI crystals at tempe rature ranges from _70°C to 194°C and IR studies in the lower range of 700cm'} and Raman studies in the lower range of SOOcm·1 were also carried out. LA eng UL http://ijcm.ir/article-1-856-en.html M3 ER -