Synthesis, crystal structure and catalytic property of a new samarium compound derived from 5-(pyrazin-2-yl)tetrazole-2-acetic acid

Abstract

[Sm(pztza)₂(H₂O)₆]·pztza·3H₂O has been prepared by the reaction of SmCl₃·6H₂O and 5-(pyrazin-2-yl)tetrazole-2-acetic acid (Hpztza) under the presence of potassium hydroxide. The compound has been structurally characterized by elemental analysis, IR, and single-crystal X-ray diffraction. The X-ray analysis demonstrates this complex displays a mononuclear structure. Furthermore, it shows an excellent catalytic property for polymerization of vinyl monomers and the polymerization shows controlled characteristics. It can be isolated from the reaction system and reused at least 10 times.