Emeritus Professor Carl Redshaw's Outputs (429)

Highly selective and immortal magnesium calixarene complexes for the ring-opening polymerization of rac-lactide (2014)
Journal Article
Walton, M. J., Lancaster, S. J., & Redshaw, C. (2014). Highly selective and immortal magnesium calixarene complexes for the ring-opening polymerization of rac-lactide. ChemCatChem, 6(7), 1892-1898. https://doi.org/10.1002/cctc.201402041

The lithiation of 1,3-dipropoxy-p-tert-butylcalix[4]arene (LH₂) followed by reaction with nBuMgBr in THF resulted in the formation of the hetero-bimetallic complex [Li(THF)Mg(nBu)L] (1). By contrast, the treatment of tripropoxy-p-tert-butylcalix[4]ar... Read More about Highly selective and immortal magnesium calixarene complexes for the ring-opening polymerization of rac-lactide.

Organoaluminium complexes of ortho-, meta-, para-anisidines: synthesis, structural studies and ROP of ε-caprolactone (and rac-lactide) (2014)
Journal Article
Li, Y., Zhao, K.-Q., Elsegood, M. R. J., Prior, T. J., Sun, X., Mo, S., & Redshaw, C. (2014). Organoaluminium complexes of ortho-, meta-, para-anisidines: synthesis, structural studies and ROP of ε-caprolactone (and rac-lactide). Catalysis science & technology, 4(9), 3025-3031. https://doi.org/10.1039/c4cy00624k

Reaction of Me₃Al (two equivalents) with ortho-, meta- or para-anisidine, (OMe)(NH₂)C₆H₄, affords the complexes {[1,2-(OMe),NC₆H₄(μ-Me₂Al)](μ-Me₂Al)}₂ (1), [1,3-(Me₃AlOMe),NHC₆H₄(μ-Me₂Al)]2 (2) or [1,4-(Me₃AlOMe),NHC₆H₄(μ-Me₂Al)]₂ (3), respectively.... Read More about Organoaluminium complexes of ortho-, meta-, para-anisidines: synthesis, structural studies and ROP of ε-caprolactone (and rac-lactide).

A study of allosteric binding behaviour of a 1,3-alternate thiacalix[4]arene-based receptor using fluorescence signal (2014)
Journal Article
Tomiyasu, H., Jin, C.-C., Ni, X.-L., Zeng, X., Redshaw, C., & Yamato, T. (2014). A study of allosteric binding behaviour of a 1,3-alternate thiacalix[4]arene-based receptor using fluorescence signal. Organic & biomolecular chemistry, 12(27), 4917-4923. https://doi.org/10.1039/c4ob00551a

A novel heteroditopic thiacalix[4]arene receptor L possessing 1,3-alternate conformation, which contains two pyrene moieties attached to the lower rim via urea linkages together with a crown ether moiety appended at the opposite side of the thiacalix... Read More about A study of allosteric binding behaviour of a 1,3-alternate thiacalix[4]arene-based receptor using fluorescence signal.

Chromium complex pre-catalysts in ethylene oligomerization/polymerization (2014)
Journal Article
Katla, V., Du, S., Redshaw, C., & Sun, W.-H. (2014). Chromium complex pre-catalysts in ethylene oligomerization/polymerization. Review of catalysts, 1(1), 1-14. https://doi.org/10.18488/journal.96.2014.11.1.14

Recent progress of chromium complex pre-catalysts in ethylene oligomerization and polymerization is reviewed herein. As well as the well-established trimerization of ethylene by chromium catalytic systems, such pre-catalysts have more generally been... Read More about Chromium complex pre-catalysts in ethylene oligomerization/polymerization.

Synthesis, characterization and ethylene polymerization behaviour of binuclear nickel halides bearing 4,5,9,10-tetra(arylimino)pyrenylidenes (2014)
Journal Article
Xing, Q., Song, K., Liang, T., Liu, Q., Sun, W.-H., & Redshaw, C. (2014). Synthesis, characterization and ethylene polymerization behaviour of binuclear nickel halides bearing 4,5,9,10-tetra(arylimino)pyrenylidenes. Dalton Transactions : an international journal of inorganic chemistry, 43(21), 7830-7837. https://doi.org/10.1039/c4dt00503a

Pyrene-4,5,9,10-tetraone was prepared via the oxidation of pyrene, and reacted with various anilines to afford a series of 4,5,9,10-tetra(arylimino)pyrenylidene derivatives (L1–L4). The tetraimino-pyrene compounds L1 and L2 were reacted with two equi... Read More about Synthesis, characterization and ethylene polymerization behaviour of binuclear nickel halides bearing 4,5,9,10-tetra(arylimino)pyrenylidenes.

Selective ethylene trimerization by titanium complexes bearing phenoxy-imine ligands: NMR and EPR Spectroscopic studies of the reaction intermediates (2014)
Journal Article
Soshnikov, I. E., Semikolenova, N. V., Ma, J., Zhao, K.-Q., Zakharov, V. A., Bryliakov, K. P., Redshaw, C., & Talsi, E. P. (2014). Selective ethylene trimerization by titanium complexes bearing phenoxy-imine ligands: NMR and EPR Spectroscopic studies of the reaction intermediates. Organometallics, 33(6), 1431-1439. https://doi.org/10.1021/om500017r

The catalyst systems (FI)TiCl₃/MAO (FI = phenoxyimine ligand with an additional aryl–O–CH₃ donor) display exceptionally high activity in selective ethylene trimerization. By means of NMR and EPR spectroscopy, the nature of the Ti species formed in th... Read More about Selective ethylene trimerization by titanium complexes bearing phenoxy-imine ligands: NMR and EPR Spectroscopic studies of the reaction intermediates.

Vanadyl complexes bearing bi-dentate phenoxyimine ligands: Synthesis, structural studies and ethylene polymerization capability (2014)
Journal Article
Ma, J., Zhao, K.-Q., Walton, M. J., Wright, J. A., Frese, J. W. A., Elsegood, M. R. J., Xing, Q., Sun, W.-H., & Redshaw, C. (2014). Vanadyl complexes bearing bi-dentate phenoxyimine ligands: Synthesis, structural studies and ethylene polymerization capability. Dalton Transactions : an international journal of inorganic chemistry, 43(22), 8300-8310. https://doi.org/10.1039/c4dt00021h

Reaction of [VO(OnPr)₃] with the Schiff bases 3,5-(tBu)₂-2-OH-C₆H₂CH(N(x-OR-C₆H₄)) (R = Me; x = 2, L¹H; x = 3, L²H; x = 4, L³H; R = Et (L⁴H), CF₃ (L⁵H), Ph (L⁶H)) or 4-methyl-3-(R)-2-(OH)-C₆H₄C=N(2′-(2′′-(OR₁)C₆H₄)C₆H₄) (R = adamantyl, R¹ = Ph (L⁷H)... Read More about Vanadyl complexes bearing bi-dentate phenoxyimine ligands: Synthesis, structural studies and ethylene polymerization capability.

Biphenyl-bridged 6-(1-aryliminoethyl)-2-iminopyridyl-cobalt complexes: synthesis, characterization and ethylene polymerization behavior (2014)
Journal Article
Xing, Q., Zhao, T., Du, S., Yang, W., Liang, T., Redshaw, C., & Sun, W.-H. (2014). Biphenyl-bridged 6-(1-aryliminoethyl)-2-iminopyridyl-cobalt complexes: synthesis, characterization and ethylene polymerization behavior. Organometallics, 33(6), 1382-1388. https://doi.org/10.1021/om4010884

A series of biphenyl-bridged 6-(1-aryliminoethyl)-2-iminopyridine derivatives reacted with cobalt dichloride in dichloromethane/ethanol to afford the corresponding binuclear cobalt complexes. The cobalt complexes were characterized by FT-IR spectrosc... Read More about Biphenyl-bridged 6-(1-aryliminoethyl)-2-iminopyridyl-cobalt complexes: synthesis, characterization and ethylene polymerization behavior.

Half-titanocene 5-t-butyl-2-(1-(arylimino)methyl)quinolin-8-olate chlorides: Synthesis, characterization and ethylene (co-) polymerization behavior (2014)
Journal Article
Redshaw, C., Chen, L., Sun, W.-H., Wang, L., Yan, Q., & Yang, W. (2014). Half-titanocene 5-t-butyl-2-(1-(arylimino)methyl)quinolin-8-olate chlorides: Synthesis, characterization and ethylene (co-) polymerization behavior. Journal of organometallic chemistry, 753(March), 34-41. https://doi.org/10.1016/j.jorganchem.2013.12.021

A series of half-titanocene chloride complexes bearing 5-t-butyl-2-(1-(arylimino)methyl)quinolin-8-olate ligands (L), CpTiLCl₂, has been synthesized in acceptable yields by the stoichiometric reaction of CpTiCl₃ with the respective potassium 5-t-buty... Read More about Half-titanocene 5-t-butyl-2-(1-(arylimino)methyl)quinolin-8-olate chlorides: Synthesis, characterization and ethylene (co-) polymerization behavior.

Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes (2014)
Thesis
Sun, X. Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4217264

Cyclic esters provide versatile biocompatible and biodegradable polymers possessing good mechanical properties. These polymers are also models for studying the kinetics, thermodynamics, and mechanisms of many elementary reactions in polymerization. B... Read More about Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes.

Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes (2014)
Thesis
Sun, X. Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4221173

Cyclic esters provide versatile biocompatible and biodegradable polymers possessing good mechanical properties. These polymers are also models for studying the kinetics, thermodynamics, and mechanisms of many elementary reactions in polymerization. B... Read More about Synthesis and characterization of new ring opening polymerization（ROP）catalysts based on aluminium or tungsten complexes.

2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior (2014)
Journal Article
Liu, Q., Zhang, W., Jia, D., Hao, X., Redshaw, C., & Sun, W.-H. (2014). 2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior. Applied catalysis. A, General, 475(April), 195-202. https://doi.org/10.1016/j.apcata.2014.01.034

The series of 2-{2,6-bis[di(4-fluorophenyl)methyl]-4-chlorophenylimino}-3- aryliminobutane derivatives (L1-L5) and their nickel(II) dibromide complexes (Ni1-Ni5) were synthesized, and all organic compounds were fully characterized by the Fourier tran... Read More about 2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior.

Pillared two-dimensional metal-organic frameworks based on a lower-rim acid appended calix[4]arene (2013)
Journal Article
Redshaw, C., Rowe, O., Elsegood, M. R. J., Horsburgh, L., & Teat, S. J. (2014). Pillared two-dimensional metal-organic frameworks based on a lower-rim acid appended calix[4]arene. Crystal growth & design, 14(1), 270-277. https://doi.org/10.1021/cg4014703

Solvothermal reactions of the lower-rim functionalized diacid calix[4]arene 25,27-bis(methoxycarboxylic acid)-26,28-dihydroxy-4-tert-butylcalix[4]arene (LH₂) with Zn(NO₃)₂•6H₂O and the dipyridyl ligands 4,4/-bipyridyl (4,4/-bipy), 1,2-di(4-pyridyl)et... Read More about Pillared two-dimensional metal-organic frameworks based on a lower-rim acid appended calix[4]arene.

Bi- and tri-dentate imino-based iron and cobalt pre-catalysts for ethylene oligo-/polymerization (2013)
Journal Article
Ma, J., Feng, C., Wang, S., Zhao, K.-Q., Sun, W.-H., Redshaw, C., & Solan, G. A. (2013). Bi- and tri-dentate imino-based iron and cobalt pre-catalysts for ethylene oligo-/polymerization. Inorganic chemistry frontiers an international journal of inorganic chemistry / Royal Society of Chemistry, 1(1), 14-34. https://doi.org/10.1039/c3qi00028a

Recent progress on the use of iron and cobalt complex pre-catalysts for ethylene reactivity is reviewed. The review is organized in terms of the denticity of the chelate ligands employed, with particular reference to the influence of the ligand frame... Read More about Bi- and tri-dentate imino-based iron and cobalt pre-catalysts for ethylene oligo-/polymerization.

Triphenylene discotic liquid crystal trimers synthesized by Co 2(CO)8-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition (2013)
Journal Article
Han, B., Hu, P., Wang, B. Q., Redshaw, C., & Zhao, K. Q. (2013). Triphenylene discotic liquid crystal trimers synthesized by Co 2(CO)8-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition. Beilstein Journal of Organic Chemistry, 9, 2852-2861. https://doi.org/10.3762/bjoc.9.321

The synthesis of star-shaped discotic liquid crystal trimers using Co 2(CO)8-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition reaction is reported. The trimers consist of three triphenylene discotic units linked to a central 1,2,4-trisubstituted b... Read More about Triphenylene discotic liquid crystal trimers synthesized by Co 2(CO)8-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition.

Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene (2013)
Journal Article
Yue, E., Xing, Q., Zhang, L., Shi, Q., Cao, X.-P., Wang, L., Redshaw, C., & Sun, W.-H. (2014). Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene. Dalton Transactions : an international journal of inorganic chemistry, 43(8), 3339-3346. https://doi.org/10.1039/c3dt53205d

A series of 2-(2-benzhydrylnaphthyliminomethyl)pyridine derivatives (L1–L3) was prepared and used to synthesize the corresponding bis-ligated nickel(II) halide complexes (Ni1–Ni6) in good yield. The molecular structures of representative complexes, n... Read More about Synthesis and characterization of 2-(2-benzhydrylnaphthyliminomethyl)pyridylnickel halides: formation of branched polyethylene.

Dialkylaluminium 2-imidazolylphenolates: Synthesis, characterization and ring-opening polymerization behavior towards lactides (2013)
Journal Article
Zhang, W., Wang, Y., Wang, L., Redshaw, C., & Sun, W.-H. (2014). Dialkylaluminium 2-imidazolylphenolates: Synthesis, characterization and ring-opening polymerization behavior towards lactides. Journal of organometallic chemistry, 750(January), 65-73. https://doi.org/10.1016/j.jorganchem.2013.11.002

The stoichiometric reaction of the 2-imidazolylphenols (L1–L9) with the trialkylaluminium reagents AlR₃ (R = Me, Et and iBu), afforded the corresponding dialkylaluminium 2-imidazolylphenolate complexes [R₂Al(L1–L9)] (C1–C11), which were characterized... Read More about Dialkylaluminium 2-imidazolylphenolates: Synthesis, characterization and ring-opening polymerization behavior towards lactides.

Synthesis, characterization and ethylene polymerization behavior of binuclear iron complexes bearing N,N′-bis(1-(6-(1-(arylimino)ethyl) pyridin-2-yl)ethylidene)benzidines (2013)
Journal Article
Xing, Q., Zhao, T., Qiao, Y., Wang, L., Redshaw, C., & Sun, W. H. (2013). Synthesis, characterization and ethylene polymerization behavior of binuclear iron complexes bearing N,N′-bis(1-(6-(1-(arylimino)ethyl) pyridin-2-yl)ethylidene)benzidines. RSC advances, 3(48), 26184-26193. https://doi.org/10.1039/c3ra42631a

A series of N,N′-bis(1-(6-(1-(arylimino)ethyl)pyridin-2-yl) ethylidene)benzidines and the bi-metallic iron complexes thereof have been synthesized and fully characterized. All iron complexes, when activated by MAO or MMAO, exhibited high activities o... Read More about Synthesis, characterization and ethylene polymerization behavior of binuclear iron complexes bearing N,N′-bis(1-(6-(1-(arylimino)ethyl) pyridin-2-yl)ethylidene)benzidines.

Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization (2013)
Journal Article
Zhang, L., Yue, E., Liu, B., Serp, P., Redshaw, C., Sun, W.-H., & Durand, J. (2014). Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization. Catalysis communications, 43(January), 227-230. https://doi.org/10.1016/j.catcom.2013.10.014

A series of 1-aryliminoethylpyridine ligands (L1―L3) was synthesized by condensation of 2-acetylpyridine with 1-aminonaphthalene, 2-aminoanthracene or 1-aminopyrene, respectively. Reaction with nickel dichloride afforded the corresponding nickel (II)... Read More about Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization.

Synthesis and photophysical properties of novel butterfly-shaped blue emitters based on pyrene (2013)
Journal Article
Feng, X., Hu, J. Y., Tomiyasu, H., Seto, N., Redshaw, C., Elsegood, M. R., & Yamato, T. (2013). Synthesis and photophysical properties of novel butterfly-shaped blue emitters based on pyrene. Organic & biomolecular chemistry, 11(48), 8366-8374. https://doi.org/10.1039/c3ob41350k

Using 1,3,5,9-tetrabromo-7-tert-butylpyrene as the bromide precursor, a series of novel butterfly-shaped 1,3,5,9-tetraaryl substituted pyrene derivatives were synthesized by the Suzuki-Miyaura cross-coupling reaction. Their thermal, photophysical, el... Read More about Synthesis and photophysical properties of novel butterfly-shaped blue emitters based on pyrene.