Native halide salts

In addition to the layer perovskite halide salts, the photoreactivity upon UV and T-irradiation of the native halide salts of the butadiene derivatives was also studied (JJ.) Individual salts and their reactivities are listed in Table III. 

Only recently, examples of a lattice controlled polymerization of butadiene deri-vatieves have been reported 24,25.167-171) yy y-irradiation of butadienes crystallized in perovskitetype layer structures yielded erythro-diisotactic 1,4-trans-polymers Furthermore, crystalline 1,4-trans-polymers could be obtained upon UV-or y-irradiation of native halide salts of unsaturated primary amines and long chain butadienes in lipid layer structures... 

Copper is also highly reactive, forming oxides or halides (salts) when exposed to air and moisture. The green or blue products of corrosion found on copper and copper alloys are mixtures of copper salts and sulfates. Copper has been used in its native state, but more often in alloys such as brass or bronze. Most copper mined today is used in electrical wire and switches, and in brass alloys. 

Table III. Butadiene derivatives and their photoreactivities in native ammonium halide salts (R-CH>CH-CH CH-CH NH.) X...

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