1609253-74-8Relevant academic research and scientific papers
ZINC COMPLEX INCLUDING N,N-BISPYRAZOLYL BASED LIGAND, CATALYST FOR POLYMERIZATION OF MONOMER HAVING A RING-TYPE ESTER GROUP, AND METHOD OF FORMING POLYMER USING THE CATALYST
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Paragraph 0085-0087, (2017/07/13)
The present invention relates to a zinc complex containing an N,N-bispyrazolyl based ligand, a catalyst for polymerizing a monomer having a cyclic ester group, and a method of forming a polymer by using the same, wherein the zinc complex is represented by chemical formula 1, and in the chemical formula 1, Ar represents a cycloalkyl group, an alkoxy group, or a halogen group; L represents -(CH_2)_y- (while y is an integer of 1 to 5) or an arylene group; R_1 to R_4 represent independently hydrogen or an alkyl group; and X represents a halogen group.COPYRIGHT KIPO 2017
Cadmium(II) complexes containing N′-substituted N,N-bispyrazolyl ligands: The formation of 4- and 5-coordinated monomers versus 6-coordinated dimer
Choi, Sunghye,Kim, Sunghoon,Lee, Ha-Jin,Lee, Hyosun
, p. 164 - 168 (2014/05/06)
Novel Cd(II) bromide complexes [LaCdBr2], [L bCdBr2] and [LcCd(μ-Br)Br]2 have been synthesized and characterized. [LaCdBr2] and [L bCdBr2] were distorted tetrahedral and trigonal bipyramidal geometry around metal, respectively, depending on the coordination of the nitrogen atom of N′-substituted amine moiety and the cadmium center. However, [LcCd(μ-Br)Br]2 reveals a bromo-bridged 6-coordinated dimeric species. Specifically, the catalytic activity of [LbCdBr2] (1.13 × 105 g PMMA/mol Cd·h) in the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C was higher than that of [LaCdBr2] (5.03 × 104 g PMMA/mol Cd·h) and reference complex [CdCl2] (3.53 × 10 4 g PMMA/mol Cd·h).
