Introduction of Re(CO)/Tc(CO) Organometallic Species into Vinylpyrrolidone-Allyliminodiacetate Copolymers.

N-vinylpyrrolidone-co-allylamine copolymers (VP-co-AA) containing iminodiacetic (IDA) chelation units were prepared in the range of molecular masses of the copolymers from 9000 to 30,000 Da depending on polymerization conditions. Non-radioactive organometallic species Re(CO) were introduced into polymeric carriers under mild conditions; the prepared metal-polymeric complexes were characterized by IR, NMR, ESI-MS and HPLC. IR spectra data confirmed the coordination of M(CO) moiety to the polymeric backbone via IDA chelation unit (appearance of characteristic fac-M(CO) vibrations (2005, 1890 cm), as well as the appearance of group of signals in H NMR spectra, corresponding to those inequivalent to methylene protons CHCOO (dd, 4.

Synthesis of Water-Soluble Copolymers of -vinylpyrrolidone with -vinyldithiocarbamate as Multidentate Polymeric Chelation Systems and Their Complexes with Indium and Gallium.

Dithiocarbamate (DTC) derivatives of -vinylpyrrolidone--vinylamine (VP-VA) copolymers were synthesized via reaction between the copolymers and carbon disulfide in alkaline medium; molecular masses of the products were 12 and 29 kDa; the VP:VDTC ratios were 94:6 and 83:17 mol.%. Complexation between the obtained DTC derivatives and metal ions (indium and gallium) was investigated.