Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine

Hyungwoo Cho; Maeng Joon Jung; Jongho Jeon; Hyosun Lee; Saira Nayab

doi:10.1016/j.ica.2018.12.020

Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine

Hyungwoo Cho, Maeng Joon Jung, Jongho Jeon, Hyosun Lee, Saira Nayab

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Copper(II), cadmium(II) and zinc(II) complexes containing N-methyl-N-((pyridine-2-yl)methyl)benzeneamine (npmb) ligand have been synthesized and characterized by X-ray crystallography. Molecular structures of Cu(II) and Cd(II) complexes revealed dimeric structures with square pyramidal and distorted trigonal bipyramidal geometries, respectively, involving two nitrogen atoms, two bridged and one terminal halogen ligands. However, the monomeric Zn(II) complex showed a distorted tetrahedral geometry around the Zn centre. [(npmb)ZnCl₂] exhibited the higher catalytic activity (2.88 × 10⁴ g PMMA/molZn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C and yielded high molecular weight (11.1 g/mol × 10⁵) syndiotactic-enriched poly(methylmethacrylate) (PMMA) compared to its Cu(II) and Cd(II) analogues.

Original language	English
Pages (from-to)	221-227
Number of pages	7
Journal	Inorganica Chimica Acta
Volume	487
DOIs	https://doi.org/10.1016/j.ica.2018.12.020
State	Published - 1 Mar 2019

Keywords

Cadmium(II) complex
Copper(II) complex
N-Methyl-N-((pyridine-2-yl)methyl)benzeneamine
Syndiotactic-enriched poly(methylmethacrylate)
Zinc(II) complex

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@article{d4767960ec3a4bdf8a7ce876557c55b1,

title = "Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine",

abstract = "Copper(II), cadmium(II) and zinc(II) complexes containing N-methyl-N-((pyridine-2-yl)methyl)benzeneamine (npmb) ligand have been synthesized and characterized by X-ray crystallography. Molecular structures of Cu(II) and Cd(II) complexes revealed dimeric structures with square pyramidal and distorted trigonal bipyramidal geometries, respectively, involving two nitrogen atoms, two bridged and one terminal halogen ligands. However, the monomeric Zn(II) complex showed a distorted tetrahedral geometry around the Zn centre. [(npmb)ZnCl2] exhibited the higher catalytic activity (2.88 × 104 g PMMA/molZn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C and yielded high molecular weight (11.1 g/mol × 105) syndiotactic-enriched poly(methylmethacrylate) (PMMA) compared to its Cu(II) and Cd(II) analogues.",

keywords = "Cadmium(II) complex, Copper(II) complex, N-Methyl-N-((pyridine-2-yl)methyl)benzeneamine, Syndiotactic-enriched poly(methylmethacrylate), Zinc(II) complex",

author = "Hyungwoo Cho and Jung, {Maeng Joon} and Jongho Jeon and Hyosun Lee and Saira Nayab",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = mar,

day = "1",

doi = "10.1016/j.ica.2018.12.020",

language = "English",

volume = "487",

pages = "221--227",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

}

Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine. / Cho, Hyungwoo; Jung, Maeng Joon ; Jeon, Jongho et al.
In: Inorganica Chimica Acta, Vol. 487, 01.03.2019, p. 221-227.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine

AU - Cho, Hyungwoo

AU - Jung, Maeng Joon

AU - Jeon, Jongho

AU - Lee, Hyosun

AU - Nayab, Saira

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Copper(II), cadmium(II) and zinc(II) complexes containing N-methyl-N-((pyridine-2-yl)methyl)benzeneamine (npmb) ligand have been synthesized and characterized by X-ray crystallography. Molecular structures of Cu(II) and Cd(II) complexes revealed dimeric structures with square pyramidal and distorted trigonal bipyramidal geometries, respectively, involving two nitrogen atoms, two bridged and one terminal halogen ligands. However, the monomeric Zn(II) complex showed a distorted tetrahedral geometry around the Zn centre. [(npmb)ZnCl2] exhibited the higher catalytic activity (2.88 × 104 g PMMA/molZn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C and yielded high molecular weight (11.1 g/mol × 105) syndiotactic-enriched poly(methylmethacrylate) (PMMA) compared to its Cu(II) and Cd(II) analogues.

AB - Copper(II), cadmium(II) and zinc(II) complexes containing N-methyl-N-((pyridine-2-yl)methyl)benzeneamine (npmb) ligand have been synthesized and characterized by X-ray crystallography. Molecular structures of Cu(II) and Cd(II) complexes revealed dimeric structures with square pyramidal and distorted trigonal bipyramidal geometries, respectively, involving two nitrogen atoms, two bridged and one terminal halogen ligands. However, the monomeric Zn(II) complex showed a distorted tetrahedral geometry around the Zn centre. [(npmb)ZnCl2] exhibited the higher catalytic activity (2.88 × 104 g PMMA/molZn·h) for the polymerization of methyl methacrylate (MMA) in the presence of modified methylaluminoxane (MMAO) at 60 °C and yielded high molecular weight (11.1 g/mol × 105) syndiotactic-enriched poly(methylmethacrylate) (PMMA) compared to its Cu(II) and Cd(II) analogues.

KW - Cadmium(II) complex

KW - Copper(II) complex

KW - N-Methyl-N-((pyridine-2-yl)methyl)benzeneamine

KW - Syndiotactic-enriched poly(methylmethacrylate)

KW - Zinc(II) complex

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AN - SCOPUS:85058434552

SN - 0020-1693

VL - 487

SP - 221

EP - 227

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine

Abstract

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