Publication

Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation

Moulin, J. O., Evans, J., McGuinness, D. S., Reid, G., Rucklidge, A. J., Tooze, R. P. & Tromp, M., 2008, In : Dalton Transactions. 2019, 9, p. 1177-1185 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Moulin, J. O., Evans, J., McGuinness, D. S., Reid, G., Rucklidge, A. J., Tooze, R. P., & Tromp, M. (2008). Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation. Dalton Transactions, 2019(9), 1177-1185. https://doi.org/10.1039/b716078j

Author

Moulin, Jerome O. ; Evans, John ; McGuinness, David S. ; Reid, Gillian ; Rucklidge, Adam J. ; Tooze, Robert P. ; Tromp, Moniek. / Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation. In: Dalton Transactions. 2008 ; Vol. 2019, No. 9. pp. 1177-1185.

Harvard

Moulin, JO, Evans, J, McGuinness, DS, Reid, G, Rucklidge, AJ, Tooze, RP & Tromp, M 2008, 'Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation', Dalton Transactions, vol. 2019, no. 9, pp. 1177-1185. https://doi.org/10.1039/b716078j

Standard

Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation. / Moulin, Jerome O.; Evans, John; McGuinness, David S.; Reid, Gillian; Rucklidge, Adam J.; Tooze, Robert P.; Tromp, Moniek.

In: Dalton Transactions, Vol. 2019, No. 9, 2008, p. 1177-1185.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Moulin JO, Evans J, McGuinness DS, Reid G, Rucklidge AJ, Tooze RP et al. Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation. Dalton Transactions. 2008;2019(9):1177-1185. https://doi.org/10.1039/b716078j


BibTeX

@article{b87b35337dbd490c90ad96d6ab5d03cd,
title = "Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation",
abstract = "A series of distorted octahedral Cr(III) complexes containing tridentate S-,S/O- or N-donor ligands comprised of three distinct architectures: facultative {S(CH(2)CH(2)SC(10)H(21))(2) (L(1)) and O(CH(2)CH(2)SC(10)H(21))(2)(L(2))}, tripodal {MeC(CH(2)S(n)C(4)H(9))(3) (L(3)), MeC(CH(2)SC(10)H(21))(3) (L(4))} and macrocyclic {(C(10)H(21))[9]aneN(3) (L(5)), (C(10)H(21))(3)[9] aneN(3) (L(6)), with [9] aneN(3) = 1,4,7- triazacyclononane} are reported and characterised spectroscopically. Activation of [CrCl(3)( L)] with MMAO produces very active ethylene trimerisation, oligomerisation and polymerisation catalysts, with significant dependence of the product distribution upon the ligand type present. The properties of the parent [CrCl(3)(L)] complexes are probed by cyclic voltammetry, UV-visible, EPR, EXAFS and XANES measurements, and the effects upon activation with Me(3)Al investigated similarly. Treatment with excess Me3Al leads to substitution of Cl ligands by Me groups, generation of an EPR silent Cr species (consistent with a change in the oxidation state of the Cr to either Cr(II) or Cr(IV)) and substantial dissociation of the neutral S and S/O-donor ligands.",
keywords = "THIOETHER MACROCYCLIC CHEMISTRY, OLEFIN POLYMERIZATION, TRIAZACYCLOHEXANE COMPLEXES, CRYSTAL-STRUCTURE, OXIDATION-STATE, ALPHA-OLEFINS, CR-PNP, CATALYSTS, TRIMERIZATION, CHROMIUM",
author = "Moulin, {Jerome O.} and John Evans and McGuinness, {David S.} and Gillian Reid and Rucklidge, {Adam J.} and Tooze, {Robert P.} and Moniek Tromp",
year = "2008",
doi = "10.1039/b716078j",
language = "English",
volume = "2019",
pages = "1177--1185",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "ROYAL SOC CHEMISTRY",
number = "9",

}

RIS

TY - JOUR

T1 - Probing the effects of ligand structure on activity and selectivity of Cr(III) complexes for ethylene oligomerisation and polymerisation

AU - Moulin, Jerome O.

AU - Evans, John

AU - McGuinness, David S.

AU - Reid, Gillian

AU - Rucklidge, Adam J.

AU - Tooze, Robert P.

AU - Tromp, Moniek

PY - 2008

Y1 - 2008

N2 - A series of distorted octahedral Cr(III) complexes containing tridentate S-,S/O- or N-donor ligands comprised of three distinct architectures: facultative {S(CH(2)CH(2)SC(10)H(21))(2) (L(1)) and O(CH(2)CH(2)SC(10)H(21))(2)(L(2))}, tripodal {MeC(CH(2)S(n)C(4)H(9))(3) (L(3)), MeC(CH(2)SC(10)H(21))(3) (L(4))} and macrocyclic {(C(10)H(21))[9]aneN(3) (L(5)), (C(10)H(21))(3)[9] aneN(3) (L(6)), with [9] aneN(3) = 1,4,7- triazacyclononane} are reported and characterised spectroscopically. Activation of [CrCl(3)( L)] with MMAO produces very active ethylene trimerisation, oligomerisation and polymerisation catalysts, with significant dependence of the product distribution upon the ligand type present. The properties of the parent [CrCl(3)(L)] complexes are probed by cyclic voltammetry, UV-visible, EPR, EXAFS and XANES measurements, and the effects upon activation with Me(3)Al investigated similarly. Treatment with excess Me3Al leads to substitution of Cl ligands by Me groups, generation of an EPR silent Cr species (consistent with a change in the oxidation state of the Cr to either Cr(II) or Cr(IV)) and substantial dissociation of the neutral S and S/O-donor ligands.

AB - A series of distorted octahedral Cr(III) complexes containing tridentate S-,S/O- or N-donor ligands comprised of three distinct architectures: facultative {S(CH(2)CH(2)SC(10)H(21))(2) (L(1)) and O(CH(2)CH(2)SC(10)H(21))(2)(L(2))}, tripodal {MeC(CH(2)S(n)C(4)H(9))(3) (L(3)), MeC(CH(2)SC(10)H(21))(3) (L(4))} and macrocyclic {(C(10)H(21))[9]aneN(3) (L(5)), (C(10)H(21))(3)[9] aneN(3) (L(6)), with [9] aneN(3) = 1,4,7- triazacyclononane} are reported and characterised spectroscopically. Activation of [CrCl(3)( L)] with MMAO produces very active ethylene trimerisation, oligomerisation and polymerisation catalysts, with significant dependence of the product distribution upon the ligand type present. The properties of the parent [CrCl(3)(L)] complexes are probed by cyclic voltammetry, UV-visible, EPR, EXAFS and XANES measurements, and the effects upon activation with Me(3)Al investigated similarly. Treatment with excess Me3Al leads to substitution of Cl ligands by Me groups, generation of an EPR silent Cr species (consistent with a change in the oxidation state of the Cr to either Cr(II) or Cr(IV)) and substantial dissociation of the neutral S and S/O-donor ligands.

KW - THIOETHER MACROCYCLIC CHEMISTRY

KW - OLEFIN POLYMERIZATION

KW - TRIAZACYCLOHEXANE COMPLEXES

KW - CRYSTAL-STRUCTURE

KW - OXIDATION-STATE

KW - ALPHA-OLEFINS

KW - CR-PNP

KW - CATALYSTS

KW - TRIMERIZATION

KW - CHROMIUM

U2 - 10.1039/b716078j

DO - 10.1039/b716078j

M3 - Article

VL - 2019

SP - 1177

EP - 1185

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 9

ER -

ID: 107575428