Lactide polymerisation by ring-expanded NHC complexes of zinc

Lee R. Collins; Louise A. Mofffat; Mary F. Mahon; Matthew D. Jones; Michael K. Whittlesey

doi:10.1016/j.poly.2015.09.022

Lactide polymerisation by ring-expanded NHC complexes of zinc

Lee R. Collins, Louise A. Mofffat, Mary F. Mahon, Matthew D. Jones, Michael K. Whittlesey

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Abstract

The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of the free carbenes, for the ring-opening polymerisation of rac-lactide has been probed. Even for such strongly σ-donating carbenes, dissociation from the metal centre cannot be ruled out.

Original language	English
Pages (from-to)	121-125
Journal	Polyhedron
Volume	103
Issue number	Part A
Early online date	25 Sept 2015
DOIs	https://doi.org/10.1016/j.poly.2015.09.022
Publication status	Published - 8 Jan 2016

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10.1016/j.poly.2015.09.022

Whittlesey PURE PolyhedronAccepted author manuscript, 580 KB

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title = "Lactide polymerisation by ring-expanded NHC complexes of zinc",

abstract = "The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of the free carbenes, for the ring-opening polymerisation of rac-lactide has been probed. Even for such strongly σ-donating carbenes, dissociation from the metal centre cannot be ruled out.",

author = "Collins, {Lee R.} and Mofffat, {Louise A.} and Mahon, {Mary F.} and Jones, {Matthew D.} and Whittlesey, {Michael K.}",

year = "2016",

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doi = "10.1016/j.poly.2015.09.022",

language = "English",

volume = "103",

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journal = "Polyhedron",

issn = "0277-5387",

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T1 - Lactide polymerisation by ring-expanded NHC complexes of zinc

AU - Collins, Lee R.

AU - Mofffat, Louise A.

AU - Mahon, Mary F.

AU - Jones, Matthew D.

AU - Whittlesey, Michael K.

PY - 2016/1/8

Y1 - 2016/1/8

N2 - The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of the free carbenes, for the ring-opening polymerisation of rac-lactide has been probed. Even for such strongly σ-donating carbenes, dissociation from the metal centre cannot be ruled out.

AB - The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of the free carbenes, for the ring-opening polymerisation of rac-lactide has been probed. Even for such strongly σ-donating carbenes, dissociation from the metal centre cannot be ruled out.

UR - http://dx.doi.org/10.1016/j.poly.2015.09.022

U2 - 10.1016/j.poly.2015.09.022

DO - 10.1016/j.poly.2015.09.022

M3 - Article

SN - 0277-5387

VL - 103

SP - 121

EP - 125

JO - Polyhedron

JF - Polyhedron

IS - Part A

ER -

Lactide polymerisation by ring-expanded NHC complexes of zinc

Abstract

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Avance III 500 MHz Nuclear Magnetic Resonance (NMR) Spectrometer (9West)

Avance NEO 500 MHz Nuclear Magnetic Resonance (NMR) Spectrometer (1South)

Single Crystal XRD Diffractometer (Excalibur)

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Lactide polymerisation by ring-expanded NHC complexes of zinc

Abstract

Access to Document

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Equipment

Avance III 500 MHz Nuclear Magnetic Resonance (NMR) Spectrometer (9West)

Avance NEO 500 MHz Nuclear Magnetic Resonance (NMR) Spectrometer (1South)

Single Crystal XRD Diffractometer (Excalibur)

Cite this