TY - JOUR
T1 - Synthesis and structural characterization of [(dpca)MX2] (M = Cu, X = Cl; M = Cd, X = Br and M = Zn, X = NO3) complexes containing N,N-di(2-picolyl)cyclohexylamine (dpca) and their application to methyl methacrylate polymerization
AU - Song, Yujin
AU - Kim, Dongil
AU - Lee, Ha Jin
AU - Lee, Hyosun
PY - 2014/7
Y1 - 2014/7
N2 - A novel series of [(dpca)MX2] (M = Cu, X = Cl; M = Cd, X = Br and M = Zn, X = NO3) complexes were synthesized through the reaction of N,N-di(2-picolyl)cyclohexylamine (dpca) with the corresponding metal starting materials. X-ray crystallographic analysis determined that the metal center in complexes [(dpca)CuCl2], [(dpca)CdBr2] and [(dpca)Zn(NO3)2] showed a distorted 5-coordinated square pyramidal, trigonal bipyramidal, and 7-coordinated pentagonal bipyramidal geometry, respectively, involving coordination of the nitrogen atom of the cyclohexylamine moiety with the metal center. Specifically, the catalytic activity of [(dpca)Zn(NO3)2] (1.04 × 105 g PMMA/mol Zn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C was six-fold higher than the reference complex [ZnCl2] (1.73 × 10 4 g PMMA/mol Zn·h).
AB - A novel series of [(dpca)MX2] (M = Cu, X = Cl; M = Cd, X = Br and M = Zn, X = NO3) complexes were synthesized through the reaction of N,N-di(2-picolyl)cyclohexylamine (dpca) with the corresponding metal starting materials. X-ray crystallographic analysis determined that the metal center in complexes [(dpca)CuCl2], [(dpca)CdBr2] and [(dpca)Zn(NO3)2] showed a distorted 5-coordinated square pyramidal, trigonal bipyramidal, and 7-coordinated pentagonal bipyramidal geometry, respectively, involving coordination of the nitrogen atom of the cyclohexylamine moiety with the metal center. Specifically, the catalytic activity of [(dpca)Zn(NO3)2] (1.04 × 105 g PMMA/mol Zn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C was six-fold higher than the reference complex [ZnCl2] (1.73 × 10 4 g PMMA/mol Zn·h).
KW - Cadmium(II) complex
KW - Copper(II) complex
KW - Methyl methacrylate polymerization
KW - N,N-di(2-picolyl)cyclohexylmethylamine
KW - Syndiotacity
KW - Zinc(II) complex
UR - http://www.scopus.com/inward/record.url?scp=84899826630&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2014.04.005
DO - 10.1016/j.inoche.2014.04.005
M3 - Article
AN - SCOPUS:84899826630
SN - 1387-7003
VL - 45
SP - 66
EP - 70
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
ER -