C,N-Chelate deprotonated diaminocarbene platinum(II) complexes were synthesized by coupling coordinated isocyanides and azinyl-substituted ureas. The complexes act as catalysts of α,ω-divinylpolydimethylsiloxane and poly(dimethylsiloxane-co-methylhydrosiloxane) hydrosilylation cross-linking. Silicone rubbers obtained with (aminoisoquinoline)-containing complex 3d exhibit temperature-responsive luminescence. Their emission changes irreversibly when heated from 80–100 °C (green radiation) to 120 °C or more (blue radiation).

C,N-Chelate deprotonated diaminecarbene platinum(II) complexes were studied as polysiloxane system hydrosilylation catalysts. Phenyl-containing silicone rubbers were obtained.

An effective heterogeneous macrocatalyst was synthesized by immobilization of a platinum catalytic complex in a polysiloxane chain. It is easy to recover, purify, and reuse again for Si–O dehydrocoupling.