Abstract
The growth of selenium single crystals in organic gel media has been accomplished at near ambient temperatures. At least two different crystallographic modifications of selenium can be obtained depending upon the specifics of the growth system. The preparative techniques developed typically involve the diffusion of selenium solutions, e.g. carbon disulfide, methylene iodide etc. into toluene gels of styrenemaleic anhydride copolymers. The resulting single crystals whose size was in the order of 1.5–2 mm, were characterized by x-ray diffraction studies and suitable chemical analyses. The effects of different experimental system variables including selenium solvent, type of gel medium etc. on crystal characteristics are considered.
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