Strontium compounds metallocenes

A recently reported example of a polymeric self-assembled alkali earth metallocene is the THF adduct of bis(indenyl)strontium, [Sr( / -C7H9)(THF)] , 34 [29]. In the solid state this compound forms an infinite coordination polymer in which each strontium atom is coordinated by a terminal indenyl and THF ligand. Approximately tetrahedral geometry around the metal center results from an additional association with two bridging indenyl moieties. 

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