Indenyl complexes have been used in wide range applications such as polymerization and hydrosilylation, and ring substituents can vary their properties. Several substituted indenyl systems have been reported, but examples with bulky alkyl substituted derivative have relatively limited. These ligands have been used for the synthesis of Fe, Zr and Cr complexes. However, the ligand syntheses are rather tedious and give the desired product in only low to moderate yields.Here we report on an improved synthesis of C9H5(tBu)2 and a new synthesis for C9H5(cHex)2, and the preparation of the corresponding iron, manganese, and cobalt metallocenes. The influence of bulky groups on structure and electronic and magnetic properties of these metallocene will be presented.Figure1: SQUID measurement of (2tBuInd)2Mn

Complexes of manganese, iron, and cobalt with sterically demanding indenyl ligands

244th National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.