Synthesis, molecular structure and norbornene polymerization behavior of three-coordinate nickel(i) complexes with chelating anilido-imine ligands

2006 ◽  
pp. 2579 ◽  
Author(s):  
Hai-Yu Wang ◽  
Xia Meng ◽  
Guo-Xin Jin
Keyword(s):  
Molecular Structure ◽  
Polymerization Behavior ◽  
Imine Ligands ◽  
Norbornene Polymerization

Synthesis, Structures, and Norbornene Polymerization Behavior of Bis(aryloxide-N-heterocyclic carbene) Palladium Complexes

2009 ◽  
Vol 28 (20) ◽  
pp. 5934-5940 ◽  
Author(s):  
Yong Kong ◽  
Hongping Ren ◽  
Shansheng Xu ◽  
Haibin Song ◽  
Binyuan Liu ◽  
...  
Keyword(s):  
Palladium Complexes ◽  
Polymerization Behavior ◽  
Norbornene Polymerization

Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes

Polyhedron ◽  
2004 ◽  
Vol 23 (9) ◽  
pp. 1619-1627 ◽  
Author(s):  
Hua Liang ◽  
Jingyu Liu ◽  
Xiaofang Li ◽  
Yuesheng Li
Keyword(s):  
Palladium Complexes ◽  
Polymerization Behavior ◽  
Norbornene Polymerization

Polymerization behavior of 2,6-dimethoxystyrene

1969 ◽  
Vol 47 (11) ◽  
pp. 2057-2060 ◽  
Author(s):  
W. Y. Lau ◽  
C. M. Burns
Keyword(s):  
Molecular Structure ◽  
Free Radical ◽  
Methyl Methacrylate ◽  
Random Copolymers ◽  
Cross Linking ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios ◽  
Polymerization Behavior

Free radical, cationic, and anionic initiators were investigated as possible agents for the polymerization of 2,6-dimethoxystyrene. Polymerization was observed in all three cases, with rapid cross-linking apparently occurring with the cationic catalyst. Attempts at copolymerization with styrene and with methyl methacrylate resulted in the formation of homopolymers of 2,6-dimethoxystyrene, in the cationic cases, and of methyl methacrylate in the anionic cases. Random copolymers were obtained in the anionic case with styrene and in the free radical case with both comonomers. Monomer reactivity ratios were calculated, and the polymerization behavior was interpreted in terms of the molecular structure of 2,6-dimethoxystyrene.

Complexes of cobalt(II), nickel(II) and copper(II) with a pentadentate Bis(β-amino ketone); Crystal and molecular structure of Aqua(4,4,12,12-tetramethyl-5,8,11-triazapentadecane-2,14-dione)cobalt(II) perchlorate hydrate

1982 ◽  
Vol 35 (6) ◽  
pp. 1105 ◽  
Author(s):  
KR Morgan ◽  
GJ Gainsford ◽  
NF Curtis
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Complex Cation ◽  
Carbonyl Oxygen ◽  
Amino Ketone ◽  
X Ray ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Imine Ligands ◽  
Pentadentate Ligand

The diperchlorate salts of the mono(β-amino ketone) 10-amino-4,4-dimethyl-5,8-diazadecan-2-one and of the bis(β-amino ketone) 4,4,12,12-tetramethyl-5,8,11-triazapentadecane-2,14-dione, ttp, have been prepared by reaction of the diperchlorate of 3-azapentane-1,5-diamine with acetone. The salt [ttpH2] (ClO4)2 has been used to prepare the six-coordinate complexes [Cu(ttp)(H2O)] (ClO4)2,1.5H2O and [Ni(ttp)(H2O)] (ClO4)2,H2O, and the five-coordinate [Cu(ttp)] (CIO,),. The complex [Cu(ttp)] (ClO4), reacts with ammonia, methylamine and ethylamine to form complexes of pentadentate β-amino ketone β-amino imine ligands. The structure of [Co(ttp)(H2O)] (ClO4)2,1.5H2O has been determined by X-ray diffractometry [space group P21/c, Z 4, a 797.5(2), b 1632.8(3), c 2236.4(3) pm, β 97.504(2)�, R 0.0749, Rw 0.0765 for 1678 reflections]. The complex cation has the bis(β-amino ketone) ttp acting as a pentadentate ligand, with the three nitrogen and one carbonyl oxygen atoms coplanar, and with oxygen of a water molecule completing distorted octahedral coordination about the cobalt(II) ion.

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