2-Benzoxazolyl-6-(1-(arylimino)ethyl)pyridyl cobalt (II) chlorides: A temperature switch catalyst in oligomerization and polymerization of ethylene

Gao, Rong; Wang, Kefeng; Li, Yan; Wang, Fosong; Sun, Wen Hua; Redshaw, Carl; Bochmann, Manfred

doi:10.1016/j.molcata.2009.05.021

All Outputs (7)

EPR monitoring of vanadium(IV) species formed upon activation of vanadium(V) polyphenolate precatalysts with AlR2Cl and AlR 2Cl/ethyltrichloroacetate (R = Me, Et) (2009)
Journal Article
Soshnikov, I. E., Semikolenova, N. V., Shubin, A. A., Bryliakov, K. P., Zakharov, V. A., Redshaw, C., & Talsi, E. P. (2009). EPR monitoring of vanadium(IV) species formed upon activation of vanadium(V) polyphenolate precatalysts with AlR2Cl and AlR 2Cl/ethyltrichloroacetate (R = Me, Et). Organometallics, 28(23), 6714-6720. https://doi.org/10.1021/om900515h

Reactions of the vanadyl polyphenolate complexes {VO[p-tert-butylcalix[4] arene(O)3(OMe)]} (1) and [VO(OArCH2ArCH 2OAr)]2 (Ar = 4,6-tert-butylphenol; Ar′ = 4-tert-butylphenol) (2) with AlR3 and AlR2Cl, in the absence and in the presence of reactivato... Read More about EPR monitoring of vanadium(IV) species formed upon activation of vanadium(V) polyphenolate precatalysts with AlR2Cl and AlR 2Cl/ethyltrichloroacetate (R = Me, Et).

Synthesis, structures and luminescent behaviour of tridentate salicylaldiminato-type borate complexes (2009)
Journal Article
Christou, V., Watkins, S. E., McCann, R., Redshaw, C., & Elsegood, M. R. (2010). Synthesis, structures and luminescent behaviour of tridentate salicylaldiminato-type borate complexes. Inorganica Chimica Acta, 363(6), 1173-1178. https://doi.org/10.1016/j.ica.2009.11.006

Treatment of the ligands 3,5-tBu2-2-(OH)C6H2CHNR [R = 2-(CO2H)C6H4 (1a) and 2-(CO2H)C10H6 (1b)] with trimethylborate, B(OMe)3, in toluene yields, after work-up, the yellow crystalline complexes {[3,5-tBu2-2-(O)C6H2CHNR]B(OMe)} [R = 2-(CO2)C6H4 (2a) a... Read More about Synthesis, structures and luminescent behaviour of tridentate salicylaldiminato-type borate complexes.

Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides (2009)
Journal Article
Homden, D., Redshaw, C., Warford, L., Hughes, D. L., Wright, J. A., Dale, S. H., & Elsegood, M. R. (2009). Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides. Dalton Transactions : an international journal of inorganic chemistry, 8900-8910. https://doi.org/10.1039/b901810g

The reaction of [V(Np-tolyl)Cl3] with the sulfur-bridged diphenol ligand 2,2′-thiobis(4,6-di-tert-butylphenol), {2,2′-S[4,6-(t-Bu)2C6H2OH]2} (LSH2) afforded the complexes [V(LS)2] (1) and [VOCl 3(MeCN)2][H3Np-tolyl] (2). Complex 2 could also be prepa... Read More about Synthesis, structure and ethylene polymerisation behaviour of vanadium(iv and v) complexes bearing chelating aryloxides.

Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts (2009)
Journal Article
Soshnikov, I. E., Semikolenova, N. V., Bushmelev, A. N., Bryliakov, K. P., Lyakin, O. Y., Redshaw, C., Zakharov, V. A., & Talsi, E. P. (2009). Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts. Organometallics, 28(20), 6003-6013. https://doi.org/10.1021/om900490b

The activation of bis(imino)pyridine cobalt-based catalysts of ethylene polymerization with methylalumoxane (MAO), AlMe3, and AlMe 3/[CPh3][B(C6F5)4] has been studied by 1H, 2H, and 19F NMR and EPR spectroscopy. The nature of the active sites of poly... Read More about Investigating the nature of the active species in bis(imino)pyridine cobalt ethylene polymerization catalysts.

Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation (2009)
Journal Article
Lee, D. S., Elsegood, M. R., Redshaw, C., & Zhan, S. (2009). Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation. Acta Crystallographica Section C: Crystal Structure Communications, 65(8), m291-m295. https://doi.org/10.1107/S0108270109025311

The crystal structures of acetonitrile solvates of two related lithium calixarene complexes have been determined by low-temperature single-crystal X-ray diffraction using synchrotron radiation. Bis(μ-5,11,17,23-tetra-tert- butyl-26,28-dihydr-oxy-25-m... Read More about Two related lithium calixarene complexes, [p-tert-butyl-calix[4]arene(OMe) (OH)2(OLi)]2·4MeCN and {p-tert-butyl-calix[4] arene(OH)2(OLi)[OLi(NCMe)2]}2·8MeCN, determined using synchrotron radiation.

Vanadium-based imido-alkoxide pro-catalysts bearing bisphenolate ligands for ethylene and ε-caprolactone polymerisation (2009)
Journal Article
Arbaoui, A., Redshaw, C., Homden, D. M., Wright, J. A., & Elsegood, M. R. (2009). Vanadium-based imido-alkoxide pro-catalysts bearing bisphenolate ligands for ethylene and ε-caprolactone polymerisation. Dalton Transactions : an international journal of inorganic chemistry, 8911-8922. https://doi.org/10.1039/b902402f

The pro-catalysts [V(NAr)(L)(OR)] (Ar = p-tolyl, p-ClC6H 4, p-(OMe)C6H4, p-(CF3)C 6H4; R = t-Bu, i-Pr, n-Pr, Et, C(CH3)(CF 3)2) have been prepared in good yields from the reaction of [V(NAr)(OR)3] and the bisphenol 2,2′-CH3CH[4,6- (t-Bu)2C6H2OH]2 (LH... Read More about Vanadium-based imido-alkoxide pro-catalysts bearing bisphenolate ligands for ethylene and ε-caprolactone polymerisation.

2-Benzoxazolyl-6-(1-(arylimino)ethyl)pyridyl cobalt (II) chlorides: A temperature switch catalyst in oligomerization and polymerization of ethylene (2009)
Journal Article
Gao, R., Wang, K., Li, Y., Wang, F., Sun, W. H., Redshaw, C., & Bochmann, M. (2009). 2-Benzoxazolyl-6-(1-(arylimino)ethyl)pyridyl cobalt (II) chlorides: A temperature switch catalyst in oligomerization and polymerization of ethylene. Journal of Molecular Catalysis A: Chemical, 309(1-2), 166-171. https://doi.org/10.1016/j.molcata.2009.05.021

A series of cobalt (II) complexes ligated by 2-(2-benzoxazolyl)-6-(1-(arylimino)ethyl)pyridines was synthesized and characterized by FT-IR spectroscopic and elemental analysis. The molecular structures of Co1 (Ar = 2,6-Me2C6H3), Co2 (Ar = 2,6-Et2C6H3... Read More about 2-Benzoxazolyl-6-(1-(arylimino)ethyl)pyridyl cobalt (II) chlorides: A temperature switch catalyst in oligomerization and polymerization of ethylene.