All Outputs (387)

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.

Tetraphenolate niobium and tantalum complexes for the ring opening polymerization of ε-caprolactone (2015)
Journal Article
Al-Khafaji, Y., Sun, X., Prior, T. J., Elsegood, M. R. J., & Redshaw, C. (2015). Tetraphenolate niobium and tantalum complexes for the ring opening polymerization of ε-caprolactone. Dalton Transactions : an international journal of inorganic chemistry, 44(27), 12349-12356. https://doi.org/10.1039/c5dt00272a

Reaction of the pro-ligand α,α,α′,α′-tetra(3,5-di-tert-butyl-2-hydroxyphenyl-p-)xylene-para-tetraphenol (p-L¹H₄) with two equivalents of [NbCl₅] in refluxing toluene afforded, after work-up, the complex {[NbCl₃(NCMe)]₂(μ-p-L¹)}·6MeCN (1·6MeCN). When... Read More about Tetraphenolate niobium and tantalum complexes for the ring opening polymerization of ε-caprolactone.