Olefin complexes spectral properties

Complexes [Mn(X)(Tp Bu ipr)] (X = Cl, Br, NO3) have been reported and described to possess good activity for ethylene polymerization and ethylene-R-olefin copolymerization. The [Mn(Cl)(Tp,Bu,pr)]/Al(iBu)3/[Ph3C][B(C6F5)4] system is also active toward propylene and gives isotactic polypropylene.113 Spectral properties and electronic structure of the four-coordinate high-spin... 

---