Organometallic dendrimers based on (tetraphenylcyclobutadiene) cyclopentadienylcobalt modules

SM Waybright, K McAlpine, M Laskoski…

Index: Waybright, Shane M.; McAlpine, Kanika; Laskoski, Matthew; Smith, Mark D.; Bunz, Uwe H. F. Journal of the American Chemical Society, 2002 , vol. 124, # 29 p. 8661 - 8666

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Citation Number: 46

Abstract

The synthesis and characterization of novel organometallic polyphenylene dendrimers containing 24 or 44 phenyl rings and one cyclobutadiene (cyclopentadienyl) cobalt unit is reported. The dendrimers are made by the convergent CpCo (CO) 2-mediated dimerization of di-or tetraethynyltolanes followed by a divergent core extension utilizing tetraphenylcyclopentadienone. The obtained dendrimers are air and water stable, soluble ...