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Syntheses of organometallic monomers containing cobalt and manganese
Author(s) -
Miller Edward J.,
Naughton Micheal J.,
Weigelt Carolyn A.,
Bradt Jean E.,
Serth Judy A.,
Ofslager Christian L.,
O'Brien William J.
Publication year - 1992
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19920590113
Subject(s) - chemistry , acryloyl chloride , monomer , cyclopentadienyl complex , electrophilic substitution , polymerization , polymer chemistry , manganese , cobalt , group 2 organometallic chemistry , chelation , medicinal chemistry , organometallic chemistry , substitution reaction , polymer , catalysis , organic chemistry , molecule , acrylate
Direct electrophilic substitution of the cyclopentadienyl ring of cymantrene has been used to prepare five cymantrenyl‐monomers with unsaturated sidechains. Direct substitution of cymantrene with acryloyl‐ and methacryloyl chloride under Friedel‐Crafts conditions has led to acryloyl‐ and methacryloylcymantrene. The complexes have been characterized using 1 H and 13 C NMR, IR and elemental analysis. Both complexes polymerize under treatment with AIBN at 60–70°C. The chelated complex [n 5 ‐C 5 H 4 (CH 2 CH=CH 2 )]‐Co[(NH) 2 C 6 H 4 ], was prepared from the treatment of [n 5 ‐C 5 H 4 (CH 2 CH=CH 2 )]Co(CO) 2 with I 2 followed by (NH) 2 C 6 H 4 and base. The complex was characterized with 1 H NMR and IR but failed to undergo free‐radical polymerization. The strategies used to prepare organometallic polymers are discussed.