Synthesis and X-ray crystal structure of dichloro[S-1-phenyl-N-(S- pyrrolidin-2-ylmethyl)ethanamine]zinc(II) and its catalytic application to rac-lactide polymerization

Saira Nayab; Hyosun Lee; Jong Hwa Jeong

doi:10.1016/j.poly.2010.11.002

Synthesis and X-ray crystal structure of dichloro[S-1-phenyl-N-(S- pyrrolidin-2-ylmethyl)ethanamine]zinc(II) and its catalytic application to rac-lactide polymerization

Saira Nayab, Hyosun Lee, Jong Hwa Jeong

Kyungpook National University

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

23 Scopus citations

Abstract

New dichloro zinc(II) complex ligated by the homochiral bidentate ligand S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine (PPMA) was synthesized and characterized by X-ray crystallography. The geometry of the (PPMA)ZnCl ₂ is a distorted tetrahedron comprising of zinc metal as a center linked with two N atoms of the PPMA in a bidentate coordination mode along with two chloro ligands. The catalytic capacity of the complex was evaluated in ring opening polymerization (ROP) of rac-lactide. The active catalyst species was generated in situ by treating MeLi to complex (PPMA)ZnCl₂. The dimethyl derivative of the (PPMA)ZnCl₂ showed highly activity in ROP of rac-lactide and gave preference to heterotactic polylactide.

Original language	English
Pages (from-to)	405-409
Number of pages	5
Journal	Polyhedron
Volume	30
Issue number	2
DOIs	https://doi.org/10.1016/j.poly.2010.11.002
State	Published - 1 Feb 2011

Keywords

Heterotacticity
Polylactide
Ring opening polymerization
S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine
Zinc complex

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title = "Synthesis and X-ray crystal structure of dichloro[S-1-phenyl-N-(S- pyrrolidin-2-ylmethyl)ethanamine]zinc(II) and its catalytic application to rac-lactide polymerization",

abstract = "New dichloro zinc(II) complex ligated by the homochiral bidentate ligand S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine (PPMA) was synthesized and characterized by X-ray crystallography. The geometry of the (PPMA)ZnCl 2 is a distorted tetrahedron comprising of zinc metal as a center linked with two N atoms of the PPMA in a bidentate coordination mode along with two chloro ligands. The catalytic capacity of the complex was evaluated in ring opening polymerization (ROP) of rac-lactide. The active catalyst species was generated in situ by treating MeLi to complex (PPMA)ZnCl2. The dimethyl derivative of the (PPMA)ZnCl2 showed highly activity in ROP of rac-lactide and gave preference to heterotactic polylactide.",

keywords = "Heterotacticity, Polylactide, Ring opening polymerization, S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine, Zinc complex",

author = "Saira Nayab and Hyosun Lee and Jeong, {Jong Hwa}",

year = "2011",

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doi = "10.1016/j.poly.2010.11.002",

language = "English",

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T1 - Synthesis and X-ray crystal structure of dichloro[S-1-phenyl-N-(S- pyrrolidin-2-ylmethyl)ethanamine]zinc(II) and its catalytic application to rac-lactide polymerization

AU - Nayab, Saira

AU - Lee, Hyosun

AU - Jeong, Jong Hwa

PY - 2011/2/1

Y1 - 2011/2/1

N2 - New dichloro zinc(II) complex ligated by the homochiral bidentate ligand S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine (PPMA) was synthesized and characterized by X-ray crystallography. The geometry of the (PPMA)ZnCl 2 is a distorted tetrahedron comprising of zinc metal as a center linked with two N atoms of the PPMA in a bidentate coordination mode along with two chloro ligands. The catalytic capacity of the complex was evaluated in ring opening polymerization (ROP) of rac-lactide. The active catalyst species was generated in situ by treating MeLi to complex (PPMA)ZnCl2. The dimethyl derivative of the (PPMA)ZnCl2 showed highly activity in ROP of rac-lactide and gave preference to heterotactic polylactide.

AB - New dichloro zinc(II) complex ligated by the homochiral bidentate ligand S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine (PPMA) was synthesized and characterized by X-ray crystallography. The geometry of the (PPMA)ZnCl 2 is a distorted tetrahedron comprising of zinc metal as a center linked with two N atoms of the PPMA in a bidentate coordination mode along with two chloro ligands. The catalytic capacity of the complex was evaluated in ring opening polymerization (ROP) of rac-lactide. The active catalyst species was generated in situ by treating MeLi to complex (PPMA)ZnCl2. The dimethyl derivative of the (PPMA)ZnCl2 showed highly activity in ROP of rac-lactide and gave preference to heterotactic polylactide.

KW - Heterotacticity

KW - Polylactide

KW - Ring opening polymerization

KW - S-1-phenyl-N-(S-pyrrolidin-2-ylmethyl)ethanamine

KW - Zinc complex

UR - http://www.scopus.com/inward/record.url?scp=78651395783&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2010.11.002

DO - 10.1016/j.poly.2010.11.002

M3 - Article

AN - SCOPUS:78651395783

SN - 0277-5387

VL - 30

SP - 405

EP - 409

JO - Polyhedron

JF - Polyhedron

IS - 2

ER -

Synthesis and X-ray crystal structure of dichloro[S-1-phenyl-N-(S- pyrrolidin-2-ylmethyl)ethanamine]zinc(II) and its catalytic application to rac-lactide polymerization

Abstract

Keywords

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