All Outputs (410)

Molecular catalysis for precise olefin polymerization and ROP 2015 (2016)
Journal Article
Redshaw, C. (2016). Molecular catalysis for precise olefin polymerization and ROP 2015. Catalysts, 6(4), 53. https://doi.org/10.3390/catal6040053

The growth of emerging markets, particularly in the Far East, has fuelled the demand for new plastic materials. This in turn has stimulated both academic and industrial interest in the design of catalyst systems for which new Intellectual Property (I... Read More about Molecular catalysis for precise olefin polymerization and ROP 2015.

Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes (2016)
Journal Article
Miller-Shakesby, D. M., Burke, B. P., Nigam, S., Stasiuk, G. J., Prior, T. J., Archibald, S. J., & Redshaw, C. (2016). Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes. CrystEngComm RSC, 18(26), 4977-4987. https://doi.org/10.1039/c6ce00209a

A number of p-sulfonatocalix[4]arene complexes of the lanthanides (Tb, Gd, and Eu) have been prepared, some in the presence of tetraazamacrocycle 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (DO3A), and fully characterised. Crystal structure d... Read More about Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes.

A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn²⁺ ions (2016)
Journal Article
Wu, C., Ikejiri, Y., Zhao, J.-L., Jiang, X.-K., Ni, X.-L., Zeng, X., Redshaw, C., & Yamato, T. (2016). A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn²⁺ ions. Sensors and actuators. B, Chemical, 228(2 June), 480-485. https://doi.org/10.1016/j.snb.2016.01.051

A new pyrenyl appended hexahomotrioxacalix[3]arene L featuring 1,2,3-triazole linkers was synthesized as a fluorescent chemosensor for Zn²⁺ in mixed aqueous media. It exhibited high affinity toward Zn²⁺, and the monomer and excimer emission of the py... Read More about A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn²⁺ ions.

Functionalization of Pyrene To Prepare Luminescent Materials—Typical Examples of Synthetic Methodology (2016)
Journal Article
Feng, X., Hu, J. Y., Redshaw, C., & Yamato, T. (2016). Functionalization of Pyrene To Prepare Luminescent Materials—Typical Examples of Synthetic Methodology. Chemistry: a European journal, 22(34), 11898-11916. https://doi.org/10.1002/chem.201600465

Pyrene-based π-conjugated materials are considered to be an ideal organic electro-luminescence material for application in semiconductor devices, such as organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs) and organic phot... Read More about Functionalization of Pyrene To Prepare Luminescent Materials—Typical Examples of Synthetic Methodology.

Vanadium(v) phenolate complexes for ring opening homo- and co-polymerisation of ε-caprolactone, L-lactide and rac-lactide (2015)
Journal Article
Ge, F., Dan, Y., Al-Khafaji, Y., Prior, T. J., Jiang, L., Elsegood, M. R. J., & Redshaw, C. (2016). Vanadium(v) phenolate complexes for ring opening homo- and co-polymerisation of ε-caprolactone, L-lactide and rac-lactide. RSC advances, 6(6), 4792-4802. https://doi.org/10.1039/c5ra24816g

The vanadyl complexes [VO(OtBu)L¹ ] (1) and {[VO(OiPr)]₂ (μ-p-L²ᵖ)} (2) {[VO(OR)]₂ (μ-p-L²ᵐ )} (R = iPr 3, tBu 4) have been prepared from [VO(OR)₃ ] (R = nPr, iPr or tBu) and the respective phenol, namely 2,2′-ethylidenebis(4,6-di-tert-butylphenol) (... Read More about Vanadium(v) phenolate complexes for ring opening homo- and co-polymerisation of ε-caprolactone, L-lactide and rac-lactide.

A single chemosensor for multiple analytes: fluorogenic and ratiometric absorbance detection of Zn²⁺, Mg²⁺ and F⁻, and its cell imaging (2015)
Journal Article
Li, L., Yun, S., Yuan-Hui, Z., Lan, M., Xi, Z., Redshaw, C., & Gang, W. (2016). A single chemosensor for multiple analytes: fluorogenic and ratiometric absorbance detection of Zn²⁺, Mg²⁺ and F⁻, and its cell imaging. Sensors and actuators. B, Chemical, 226, 279-288. https://doi.org/10.1016/j.snb.2015.11.126

A simple coumarin based sensor 1 has been synthesized from the condensation reaction of 7-hydroxycoumarin and ethylenediamine via the intermediate 7-hydroxy-8-aldehyde-coumarin. As a multiple analysis sensor, 1 can monitor Zn²⁺ with the fluorescence... Read More about A single chemosensor for multiple analytes: fluorogenic and ratiometric absorbance detection of Zn²⁺, Mg²⁺ and F⁻, and its cell imaging.

A multichannel thiacalix[4]arene-based fluorescent chemosensor for Zn²⁺, F⁻ ions and imaging of living cells (2015)
Journal Article
Ran, M.-Q., Zhao, J.-L., Zhao, Y.-H., Mou, L., Zeng, X., Redshaw, C., Yuan, J.-Y., & Yamato, T. (2016). A multichannel thiacalix[4]arene-based fluorescent chemosensor for Zn²⁺, F⁻ ions and imaging of living cells. Supramolecular chemistry, 28(5-6), 418-426. https://doi.org/10.1080/10610278.2015.1109645

The fluorescent sensor (3) based on the 1,3-alternate conformation of the thiacalix[4]arene bearing the coumarin fluorophore, appended via an imino group, has been synthesised. Sensing properties were evaluated in terms of a colorimetric and fluoresc... Read More about A multichannel thiacalix[4]arene-based fluorescent chemosensor for Zn²⁺, F⁻ ions and imaging of living cells.

para-Selective C-H amidation of simple arenes with nitriles (2015)
Journal Article
Xiang, S.-K., Li, J.-M., Huang, H., Feng, C., Ni, H.-L., Chen, X.-Z., Wang, B.-Q., Zhao, K.-Q., Hu, P., & Redshaw, C. (2015). para-Selective C-H amidation of simple arenes with nitriles. Advanced Synthesis and Catalysis, 357(16-17), 3435-3440. https://doi.org/10.1002/adsc.201500651

A para-selective C-H amidation of simple arenes with nitriles has been developed. By increasing the amount of arenes, a further meta-selective C-H arylation of the produced amides occurred. Both steric and electronic effects are utilized to control t... Read More about para-Selective C-H amidation of simple arenes with nitriles.

Molybdenum (VI) imido complexes derived from chelating phenols : Synthesis, characterization and ɛ-Caprolactone ROP capability (2015)
Journal Article
Al-Khafaji, Y., Prior, T., Redshaw, C., & Elsegood, M. (2015). Molybdenum (VI) imido complexes derived from chelating phenols : Synthesis, characterization and ɛ-Caprolactone ROP capability. Catalysts, 5(4), 1928-1947. https://doi.org/10.3390/catal5041928

Reaction of the bulky bi-phenols 2,2′-RCH[4,6-(t-Bu)₂C₆H₂OH]₂ (R = Me L¹ᵐᵉH₂, Ph L¹ᵖʰH₂) with the bis(imido) molybdenum(VI) tert-butoxides [Mo(NR¹)(NR²)(Ot-Bu)₂] (R¹ = R² = 2,6-C₆H₃-i-Pr₂; R¹ = t-Bu, R² = C₆F₅) afforded, following the successive remo... Read More about Molybdenum (VI) imido complexes derived from chelating phenols : Synthesis, characterization and ɛ-Caprolactone ROP capability.

Manganese coordination chemistry of bis(imino)phenoxide derived [2 + 2] Schiff-base macrocyclic ligands (2015)
Journal Article
Yang, W., Zhao, K.-Q., Wang, B.-Q., Redshaw, C., Elsegood, M. R., Zhao, J.-L., & Yamato, T. (in press). Manganese coordination chemistry of bis(imino)phenoxide derived [2 + 2] Schiff-base macrocyclic ligands. Dalton Transactions : an international journal of inorganic chemistry, 45(1), 226-236. https://doi.org/10.1039/c5dt03453a

The [2 + 2] Schiff base macrocycles [2,2'-(CH₂CH₂)(C₆H₄N)₂-2,6-(4-RC₆H₃OH)]₂ (IʳH₂), upon reaction with MnCl₂ (two equivalents) afforded the bimetallic complex [Cl₃Mn(NCMe)][MnCl(IᵗᵇᵘH₂)] (2). Under similar conditions, use of the related [2 + 2] oxy-... Read More about Manganese coordination chemistry of bis(imino)phenoxide derived [2 + 2] Schiff-base macrocyclic ligands.

A pyrene-armed hexahomotrioxacalix[3]arene as a multi-sensor via synergistic and demetallation effects (2015)
Journal Article
Redshaw, C., Fukuda, M., Jiang, X., Jin, C. C., Ni, X. L., Wu, C., Yamato, T., & Zeng, X. (2015). A pyrene-armed hexahomotrioxacalix[3]arene as a multi-sensor via synergistic and demetallation effects. Tetrahedron, 71(52), 9593-9597. https://doi.org/10.1016/j.tet.2015.11.004

A new pyrene-armed hexahomotrioxacalix[3]arene L has been synthesized, which exhibits a pronounced fluorescence enhancement response toward Cu²⁺ ions via a Zn²⁺ or Cd²⁺ triggered synergistic effect. Additionally, the L·Cu²⁺+ complex can subsequently... Read More about A pyrene-armed hexahomotrioxacalix[3]arene as a multi-sensor via synergistic and demetallation effects.

Regio-selective substitution at the 1,3- and 6,8-positions of pyrene for the construction of small dipolar molecules (2015)
Journal Article
Feng, X., Tomiyasu, H., Hu, J.-Y., Wei, X., Redshaw, C., Elsegood, M. R. J., Horsburgh, L., Teat, S. J., & Yamato, T. (2015). Regio-selective substitution at the 1,3- and 6,8-positions of pyrene for the construction of small dipolar molecules. Journal of Organic Chemistry, 80(21), 10973-10978. https://doi.org/10.1021/acs.joc.5b02128

© 2015 American Chemical Society. This article presents a novel asymmetrical functionalization strategy for the construction of dipolar molecules via efficient regioselective functionalization along the Z-axis of pyrene at both the 1,3- and 6,8-posit... Read More about Regio-selective substitution at the 1,3- and 6,8-positions of pyrene for the construction of small dipolar molecules.

Synthesis, crystal structure and complexation behaviour study of an efficient Cu2+ ratiometric fluorescent chemosensor based on thiacalix[4]arene (2015)
Journal Article
Zhao, J.-L., Tomiyasu, H., Wu, C., Cong, H., Zeng, X., Rahman, S., Georghiou, P. E., Hughes, D. L., Redshaw, C., & Yamato, T. (2015). Synthesis, crystal structure and complexation behaviour study of an efficient Cu2+ ratiometric fluorescent chemosensor based on thiacalix[4]arene. Tetrahedron, 71(45), 8521-8527. https://doi.org/10.1016/j.tet.2015.09.038

A new thiacalix[4]arene based fluorescent chemosensor L bearing two pyrenyl groups in a 1,3-alternate conformation has been synthesized, and its metal ion-binding and fluorescence-sensing properties were investigated in ethanol. The designed chemosen... Read More about Synthesis, crystal structure and complexation behaviour study of an efficient Cu2+ ratiometric fluorescent chemosensor based on thiacalix[4]arene.

Synthesis and conformational studies of chiral macrocyclic [1.1.1]metacyclophanes containing benzofuran rings (2015)
Journal Article
Islam, M. M., Tomiyasu, H., Matsumoto, T., Tanaka, J., Rahman, S., Georghiou, P. E., Redshaw, C., & Yamato, T. (2015). Synthesis and conformational studies of chiral macrocyclic [1.1.1]metacyclophanes containing benzofuran rings. Organic & biomolecular chemistry, 13(34), 9055-9064. https://doi.org/10.1039/c5ob01002k

Macrocyclic [1.1.1]metacyclophanes (MCPs) containing benzene and benzofuran rings linked by methylene bridges and which can be viewed as calixarene analogues, have been synthesized by demethylation of [3.3.1]MCP-diones with trimethylsilyl iodide (TMS... Read More about Synthesis and conformational studies of chiral macrocyclic [1.1.1]metacyclophanes containing benzofuran rings.

Characterization of the aggregation-induced enhanced emission of N,N'-bis(4-methoxysalicylide)benzene-1,4-diamine (2015)
Journal Article
Wu, F., Xu, G., Zeng, X., Mu, L., Redshaw, C., & Wei, G. (2015). Characterization of the aggregation-induced enhanced emission of N,N'-bis(4-methoxysalicylide)benzene-1,4-diamine. Journal of fluorescence, 25(5), 1183-1189. https://doi.org/10.1007/s10895-015-1605-2

© 2015 Springer Science+Business Media New York. N,N′-bis(4-methoxysalicylide)benzene-1,4-diamine (S1) was synthesized from 4-methoxysalicylaldehyde and p-phenylenediamine and it was found to exhibit interesting aggregation-induced emission enhanceme... Read More about Characterization of the aggregation-induced enhanced emission of N,N'-bis(4-methoxysalicylide)benzene-1,4-diamine.

Molybdenum complexes derived from the oxydianiline [(2-NH₂C₆H₄)₂O] : synthesis, characterization and ε-caprolactone ROP capability (2015)
Journal Article
Yang, W., Zhao, K.-Q., Redshaw, C., & Elsegood, M. R. J. (2015). Molybdenum complexes derived from the oxydianiline [(2-NH₂C₆H₄)₂O] : synthesis, characterization and ε-caprolactone ROP capability. Dalton Transactions : an international journal of inorganic chemistry, 44(29), 13133-13140. https://doi.org/10.1039/c5dt01799h

The reaction of Na₂MoO₄ with 2,2′-oxydianiline (2-aminophenylether), (2-NH₂C₆H₄)₂O, LH₄, in DME (DME = 1,2-dimethoxyethane) in the presence of Et₃N and Me₃SiCl afforded either the bis(imido) molybdenum(VI) complex {Mo(L)Cl₂(DME)} (1), where L = (2-NC... Read More about Molybdenum complexes derived from the oxydianiline [(2-NH₂C₆H₄)₂O] : synthesis, characterization and ε-caprolactone ROP capability.

Synthesis and conformational studies of calixarene analogue chiral [3.3.1]metacyclophanes (2015)
Journal Article
Islam, M. M., Hirotsugu, T., Thuery, P., Matsumoto, T., Tanaka, J., Elsegood, M. R., Redshaw, C., & Yamato, T. (2015). Synthesis and conformational studies of calixarene analogue chiral [3.3.1]metacyclophanes. Journal of molecular structure, 1098, 47-54. https://doi.org/10.1016/j.molstruc.2015.05.036

Trihydroxy[3.3.1]metacyclophane, which can be regarded as an unsymmetrical or incomplete “homocalix[3]arene”, has been prepared from trimethoxy[3.3.1]metacyclophane by demethylation with trimethylsilyl iodide in MeCN. Di-O-methylation at the lower ri... Read More about Synthesis and conformational studies of calixarene analogue chiral [3.3.1]metacyclophanes.

Vanadium(V) tetra-phenolate complexes: synthesis, structural studies and ethylene homo-(co-)polymerization capability (2015)
Journal Article
Redshaw, C., Walton, M. J., Elsegood, M. R. J., Prior, T. J., & Michiue, K. (2015). Vanadium(V) tetra-phenolate complexes: synthesis, structural studies and ethylene homo-(co-)polymerization capability. RSC advances, 5(109), 89783-89796. https://doi.org/10.1039/c5ra20177b

Reaction of α,α,α′,α′-tetrakis(3,5-di-tert-butyl-2-hydroxyphenyl)-p-xylene (p-L¹H₄) with two equivalents of [VO(OR)₃] (R = nPr, tBu) in refluxing toluene afforded, after work-up, the complexes {[VO(OnPr)(THF)]₂ (μ-p-L¹)}·2(THF) (1·2(THF)) or {[VO(OtB... Read More about Vanadium(V) tetra-phenolate complexes: synthesis, structural studies and ethylene homo-(co-)polymerization capability.

Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(II) and Cd(II) ions (2015)
Journal Article
Kowser, Z., Tomiyasu, H., Jiang, X., Rayhan, U., Redshaw, C., & Yamato, T. (2015). Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(II) and Cd(II) ions. New journal of chemistry = Nouveau journal de chimie, 39(5), 4055-4062. https://doi.org/10.1039/c4nj02363c

The different binding behaviour of 7-tert-butylpyrene based chemosensors bearing dipicolylamine (Dpa) linkages at the 1,3-positions was investigated in various solvents for the sensing of Zn(II) and Cd(II).The potential mono-chelating ligand L1 follo... Read More about Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(II) and Cd(II) ions.

Vanadyl calix[6]arene complexes: Synthesis, structural studies and ethylene homo-(co-)polymerization capability (2015)
Journal Article
Redshaw, C., Walton, M., Michiue, K., Chao, Y., Walton, A., Elo, P., Sumerin, V., Jiang, C., & Elsegood, M. R. J. (2015). Vanadyl calix[6]arene complexes: Synthesis, structural studies and ethylene homo-(co-)polymerization capability. Dalton Transactions : an international journal of inorganic chemistry, 44(27), 12292-12303. https://doi.org/10.1039/c5dt00376h

Treatment of p-tert-butylcalix[6]areneH₆ (L⁶H₆) with in situ [LiVO(Ot-Bu)₄] afforded, after work-up, the dark green complex [Li(MeCN)₄][V₂(O)₂Li(MeCN)(L⁶H₂)₂]·8MeCN (1·8MeCN). On one occasion, the reaction led to the formation of a mixture of product... Read More about Vanadyl calix[6]arene complexes: Synthesis, structural studies and ethylene homo-(co-)polymerization capability.