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Acetylacetonate and 4-arylimino-2-pentanonate carbonyl complexes of rhodium(I) [Rh(RC(O)C(R')C(O)R“)(CO)2] (1: R = Me, R' = H, R'' = Me; 2: R = Me, R' = Cl, R'' = Me; 3: R = Me, R' = H, R'' = CO2Me; 4: R = Ph, R' = H, R'' = Me; 5: R = Ph, R' = H, R'' = Ph) and [Rh(MeC(NR''')CHC(O)Me)(CO)2] (6: R''' = Ph; 7: R''' = 2,6-Me2C6H3) were examined as hydrosilylation cross-linking catalysts at RT for the reaction of poly(dimethylsiloxane-co-ethylhydrosiloxane) copolymer with vinyl terminated poly(dimethylsiloxane) or vinyl terminated poly(dimethylsiloxane-co-styrene) copolymer. All complexes allow cross-linking of vinyl- and hydride-containing polysiloxanes and copolymers at RT without inhibitor addition. Complexes 1–7 possess catalytic activity comparable to the industrially used complex of Pt0 and divinyltetramethyldisiloxane (Karstedt’s catalyst). 1 is the most active among the studied rhodium complexes at 1.0 × 10−4 mol⋅L−1 and 1.0 × 10−5 mol⋅L−1. Silicone rubbers obtained with the rhodium catalysts compared to Karstedt’s catalyst possess no visible defects (bubbles or cracks), and differed by improved elastic properties (the elongation at break increased from 160 to 255%) The activity and improved silicone rubber properties using 1 renders it one of the suitable alternatives to Karstedt’s catalyst.

The reaction of 3,4-diaryl-1H-pyrrol-2,5-diimines with cis-dichlorobis(isonitrile)platinum(II) affords the C,N-chelated diaminocarbene platinum(II) complexes, which have been fully characterized including molecular spectroscopy, single crystal X-ray diffraction and DFT calculations. The obtained platinum(II) complexes are effective catalysts for the hydrosilylation of alkynes and alkenes. Thus, the reaction of phenylacetylene with triethoxysilane leads to the formation of α- and β-(E)-vinylsilanes, generating TON's in the range of 103 to 104 and TOF's in the range of 102 to 103 h−1. Also, the cross-linked silicones, possessing the luminescence properties, were obtained by the hydrosilylation reaction of vinyl- and hydride-containing polysiloxanes. Additionally, the efficiency of diaminocarbene platinum(II) complexes against CH1/PA-1, SW480, and A549 cancer cell lines has been demonstrated by in vitro cytotoxicity studies.

The radical copolymerization of methyl pheophorbide A with styrene or methyl methacrylate in bulk or in benzene solution initiated by azobisisobutyronitrile at 60–90 °C was performed and kinetically characterized.

The role of the ferrocenium radical cation and Cp2Fe+–O radical in the initiation of methyl methacrylate polymerization in the absence and presence of oxygen was demonstrated.

The pivalate complexes of metals used in the radical polymerization of methyl methacrylate increase rate of process initiated by both benzoyl peroxide and azobisisobutyronitrile and decrease the molecular weight of the resulting polymethyl methacrylate.

Controlled radical polymerization of methyl methacrylate and styrene initiated by azobisisobutironitrile or benzoyl peroxide in the presence of a chlorine-containing complex of Fe III with 5,15-bis(4 ’ - tert -butylphenyl)-2,8,12,18-tetra( n -butyl)-3,7,13,17-tetramethylporphyrin was investigated.

The controlled radical polymerization of methyl methacrylate initiated by the ferrocene–zirconocene dichloride–benzoyl peroxide system was found to occur as a living radical process with an increased concentration of sindio-triads in the resulting poly(methyl methacrylate).