Synthesis of Zn(II) and Al(III) complexes of diaminocyclohexane derived ligands and their exploitation for the ring opening polymerization of rac-lactide

Sarah Kirk; Paul McKeown; Mary Mahon; Gabriele Kociok-Kohn; Timothy Woodman; Matthew Jones

doi:10.1002/ejic.201701186

Synthesis of Zn(II) and Al(III) complexes of diaminocyclohexane derived ligands and their exploitation for the ring opening polymerization of rac-lactide

Sarah Kirk, Paul McKeown, Mary Mahon, Gabriele Kociok-Kohn, Timothy Woodman, Matthew Jones

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Abstract

Two series of ligands based on diaminocyclohexane (DACH) have been prepared and successfully complexed to Al(III) and Zn(II) metal centres. Solution and solid-state studies reveal a tendency to form mono- or bis-ligated forms depending on the steric bulk of the ligand. These complexes have been tested for their ability to ring open rac-lactide. Al(III) based complexes generally gave atactic PLA after a polymerization time of 1-2 days. The Zn(II) complexes, were found to be more active and furnished PLA with a slight heterotactic bias.

Original language	English
Pages (from-to)	5417-5426
Journal	European Journal of Inorganic Chemistry
Volume	2017
Issue number	45
DOIs	https://doi.org/10.1002/ejic.201701186
Publication status	Published - 8 Dec 2017

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10.1002/ejic.201701186

Accepted Version
This is the peer reviewed version of the following article: Sarah M. Kirk Paul McKeown Mary F. Mahon Gabriele Kociok‐Köhn Timothy J. Woodman Matthew D. Jones (2017) Synthesis of ZnII and AlIII Complexes of Diaminocyclohexane‐Derived Ligands and Their Exploitation for the Ring Opening Polymerisation of rac‐Lactide. European Journal of Inorganic Chemistry, 2017(45) which has been published in final form at 10.1002/ejic.201701186. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Accepted author manuscript, 1.07 MB

Supporting Research Excellence in Chemistry at the University of Bath through Provision of Key Equipment Enhancements
Wilson, C. (PI), Lowe, J. (CoI), Lubben, A. T. (CoI), Mahon, M. (CoI) & Raithby, P. (CoI)
Engineering and Physical Sciences Research Council
11/03/14 → 10/06/14
Project: Research council

Dual source (Cu and Mo) Single Crystal Diffractometer (SuperNova)
Material and Chemical Characterisation (MC2)
Facility/equipment: Equipment
MC2-Mass Spectrometry (MS)
Material and Chemical Characterisation (MC2)
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MC2- Nuclear Magnetic Resonance (NMR)
Material and Chemical Characterisation (MC2)
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Cite this

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title = "Synthesis of Zn(II) and Al(III) complexes of diaminocyclohexane derived ligands and their exploitation for the ring opening polymerization of rac-lactide",

abstract = "Two series of ligands based on diaminocyclohexane (DACH) have been prepared and successfully complexed to Al(III) and Zn(II) metal centres. Solution and solid-state studies reveal a tendency to form mono- or bis-ligated forms depending on the steric bulk of the ligand. These complexes have been tested for their ability to ring open rac-lactide. Al(III) based complexes generally gave atactic PLA after a polymerization time of 1-2 days. The Zn(II) complexes, were found to be more active and furnished PLA with a slight heterotactic bias.",

author = "Sarah Kirk and Paul McKeown and Mary Mahon and Gabriele Kociok-Kohn and Timothy Woodman and Matthew Jones",

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AU - Kirk, Sarah

AU - McKeown, Paul

AU - Mahon, Mary

AU - Kociok-Kohn, Gabriele

AU - Woodman, Timothy

AU - Jones, Matthew

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Y1 - 2017/12/8

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AB - Two series of ligands based on diaminocyclohexane (DACH) have been prepared and successfully complexed to Al(III) and Zn(II) metal centres. Solution and solid-state studies reveal a tendency to form mono- or bis-ligated forms depending on the steric bulk of the ligand. These complexes have been tested for their ability to ring open rac-lactide. Al(III) based complexes generally gave atactic PLA after a polymerization time of 1-2 days. The Zn(II) complexes, were found to be more active and furnished PLA with a slight heterotactic bias.

U2 - 10.1002/ejic.201701186

DO - 10.1002/ejic.201701186

M3 - Article

SN - 1434-1948

VL - 2017

SP - 5417

EP - 5426

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 45

ER -

Synthesis of Zn(II) and Al(III) complexes of diaminocyclohexane derived ligands and their exploitation for the ring opening polymerization of rac-lactide

Abstract

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Projects

Supporting Research Excellence in Chemistry at the University of Bath through Provision of Key Equipment Enhancements

Equipment

Dual source (Cu and Mo) Single Crystal Diffractometer (SuperNova)

MC2-Mass Spectrometry (MS)

MC2- Nuclear Magnetic Resonance (NMR)

Cite this