ИСТИНА

Organic Tc(V) complexes are used in nuclear medicine as 99mTc radiopharmaceuticals. In the present work, a number of new Tc(V) compounds with imidazole (Im) and methylimidazole (MeIm) were prepared. The synthesis was carried out by dissolving thiourea, imidazole (methylimidazole) in methanol with the addition of concentrated HCl (HBr) and HTcO4 to the resulting solution. The solutions, first deep red and pink after 5 hours, were left at room temperature until crystals formed. X-ray diffraction study of crystals at 100 K was carried out.