All Outputs (1143)

Sound absorption of porous cement composites: effects of the porosity and the pore size (2015)
Journal Article
Rutkevičius, M., Austin, Z., Chalk, B., Mehl, G. H., Qin, Q., Rubini, P. A., Stoyanov, S. D., & Paunov, V. N. (2015). Sound absorption of porous cement composites: effects of the porosity and the pore size. Journal of materials science, 50(9), 3495-3503. https://doi.org/10.1007/s10853-015-8912-5

© 2015, Springer Science+Business Media New York. We prepared sound absorbing cement–hydrogel composites using a hydrogel slurry templating technique. We air-dried the wet cement composites containing a varying percentage and size of entrapped hydrog... Read More about Sound absorption of porous cement composites: effects of the porosity and the pore size.

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.

CO2 capture by dry alkanolamines and an efficient microwave regeneration process (2015)
Journal Article
Yang, J., Tan, H. Y., Low, Q. X., Binks, B. P., & Chin, J. M. (2015). CO2 capture by dry alkanolamines and an efficient microwave regeneration process. Journal of Materials Chemistry A, 3(12), 6440-6446. https://doi.org/10.1039/c4ta06273f

Removal of acidic gases such as H2S and CO2 is performed during the purification of raw natural gas, most commonly using amine gas treatment. However, this industrially entrenched method is limited by significant shortcomings including low operationa... Read More about CO2 capture by dry alkanolamines and an efficient microwave regeneration process.

Vanadium(V) oxo and imido calix[8]arene complexes: synthesis, structural studies, and ethylene homo/copolymerisation capability (2015)
Journal Article
Redshaw, C., Walton, M. J., Lee, D. S., Jiang, C., Elsegood, M. R. J., & Michiue, K. (2015). Vanadium(V) oxo and imido calix[8]arene complexes: synthesis, structural studies, and ethylene homo/copolymerisation capability. Chemistry: a European journal, 21(13), 5199-5210. https://doi.org/10.1002/chem.201406084

Interaction of p-tert-butylcalix[8]areneH₈ (L⁸H₈) with in-situ generated [NaVO(Ot-Bu)₄] (from VOCl₃ and four equivalents of NaOtBu) afforded the dark brown complex [Na(NCMe)₅][(VO)₂L⁸H]·4MeCN (1·4MeCN), in which the calix[8]arene adopts a saddle-shap... Read More about Vanadium(V) oxo and imido calix[8]arene complexes: synthesis, structural studies, and ethylene homo/copolymerisation capability.

Studies on the sulfation of cellulose α-lipoate and ability of the sulfated product to stabilize colloidal suspensions of gold nanoparticles (2015)
Journal Article
Sarbova, V., Koschella, A., Cheng, F., Kelly, S. M., & Heinze, T. (2015). Studies on the sulfation of cellulose α-lipoate and ability of the sulfated product to stabilize colloidal suspensions of gold nanoparticles. Carbohydrate Polymers, 124, 117-123. https://doi.org/10.1016/j.carbpol.2015.01.080

© 2015 Elsevier Ltd. A versatile method for the synthesis of cellulose α-lipoate with a low degree of substitution (DS) has been developed using N,N-dimethylacetamide (DMA)/LiCl as a solvent and N,N′-carbonyldiimidazole (CDI) as an esterification rea... Read More about Studies on the sulfation of cellulose α-lipoate and ability of the sulfated product to stabilize colloidal suspensions of gold nanoparticles.

Synthesis, structural studies, and oxidation catalysis of the late-first-row-transition-metal complexes of a 2-pyridylmethyl pendant-armed ethylene cross-bridged cyclam (2015)
Journal Article
Jones, D. G., Wilson, K. R., Cannon-Smith, D. J., Shircliff, A. D., Zhang, Z., Chen, Z., Prior, T. J., Yin, G., & Hubin, T. J. (2015). Synthesis, structural studies, and oxidation catalysis of the late-first-row-transition-metal complexes of a 2-pyridylmethyl pendant-armed ethylene cross-bridged cyclam. Inorganic chemistry, 54(5), 2221-2234. https://doi.org/10.1021/ic502699m

The first 2-pyridylmethyl pendant-armed ethylene cross-bridged cyclam ligand has been synthesized and successfully complexed to Mn²⁺, Fe²⁺, Co²⁺, Ni²⁺, Cu²⁺, and Zn²⁺ cations. X-ray crystal structures were obtained for all six complexes and demonstra... Read More about Synthesis, structural studies, and oxidation catalysis of the late-first-row-transition-metal complexes of a 2-pyridylmethyl pendant-armed ethylene cross-bridged cyclam.

Synthesis of a ditopic homooxacalix[3]arene for fluorescence enhanced detection of heavy and transition metal ions (2015)
Journal Article
Redshaw, C., Jin, C.-C., Mou, L., Ni, X.-L., Wu, Y., & Yamato, T. (2015). Synthesis of a ditopic homooxacalix[3]arene for fluorescence enhanced detection of heavy and transition metal ions. Supramolecular chemistry, 27(7-8), 501-507. https://doi.org/10.1080/10610278.2014.1002841

A pyrene-appended ratiometric fluorescent chemosensor L based on a synthetic approach of insulating the fluorophore from the ionophore by a specific molecular spacer has been synthesised and characterised. The fluorescence spectra changes of L sugges... Read More about Synthesis of a ditopic homooxacalix[3]arene for fluorescence enhanced detection of heavy and transition metal ions.

A uracil nitroso amine based colorimetric sensor for the detection of Cu²⁺ ions from aqueous environment and its practical applications (2015)
Journal Article
Patil, S. R., Nandre, J. P., Patil, P. A., Sahoo, S. K., Devi, M., Pradeep, C. P., Fabiao, Y., Chen, L., Redshaw, C., & Patil, U. D. (2015). A uracil nitroso amine based colorimetric sensor for the detection of Cu²⁺ ions from aqueous environment and its practical applications. RSC advances, 5(28), 21464-21470. https://doi.org/10.1039/c4ra10419f

A simple uracil nitroso amine based colorimetric chemosensor (UNA-1) has been synthesized and screened for its cation recognition ability. Sensor UNA-1 exhibited a high sensitivity and selectivity towards Cu²⁺ ions in aqueous medium in the presence o... Read More about A uracil nitroso amine based colorimetric sensor for the detection of Cu²⁺ ions from aqueous environment and its practical applications.

Sporopollenin as an efficient green support for covalent immobilization of a lipase (2015)
Journal Article
de Souza, S. P., Bassut, J., Marquez, H. V., Junior, I. I., Miranda, L. S. M., Huang, Y., Mackenzie, G., Boa, A. N., & de Souza, R. O. M. A. (2015). Sporopollenin as an efficient green support for covalent immobilization of a lipase. Catalysis science & technology, 5(6), 3130-3136. https://doi.org/10.1039/c4cy01682c

Sporopollenin exine capsules (SECs), derived from the spores of Lycopodium clavatum, have been functionalised with 1,n-diamines and the resulting aminoalkyl microcapsules used to immobilize Candida antarctica lipase B (Cal B) via a glutaradehyde-base... Read More about Sporopollenin as an efficient green support for covalent immobilization of a lipase.

ABC triblock copolymer micelles: Spherical versus worm-like micelles depending on the preparation method (2015)
Journal Article
Ghasdian, N., Buzza, D. M. A., Fletcher, P. D. I., & Georgiou, T. K. (2015). ABC triblock copolymer micelles: Spherical versus worm-like micelles depending on the preparation method. Macromolecular rapid communications, 36(6), 528-532. https://doi.org/10.1002/marc.201400621

Well-defined ABC triblock copolymers based on two hydrophilic blocks, A and C, and a hydrophobic block B are synthesized and their self-assembly behaviour is investigated. Interestingly, at the same solvent concentration, pH, and temperature, differe... Read More about ABC triblock copolymer micelles: Spherical versus worm-like micelles depending on the preparation method.

Influence of substituent position on thermal properties, photoluminescence and morphology of pyrene-fluorene derivatives (2015)
Journal Article
Feng, X., Hu, J.-Y., Wei, X.-F., Redshaw, C., & Yamato, T. (2015). Influence of substituent position on thermal properties, photoluminescence and morphology of pyrene-fluorene derivatives. Journal of molecular structure, 1086(April), 216-222. https://doi.org/10.1016/j.molstruc.2015.01.018

New position-dependent conjugated hydrocarbon dyes containing a pyrene core and multi-fluorene moieties 3 have been synthesized and characterized by ¹H/¹³C NMR spectroscopy, as well as by optical and theoretical studies. The solubility of mono-, bis-... Read More about Influence of substituent position on thermal properties, photoluminescence and morphology of pyrene-fluorene derivatives.

The first study about the relationship between the extractability of thiacalix[4]arene derivatives and the position of the coordination binding sites (2015)
Journal Article
Zhao, J.-L., Tomiyasu, H., Ni, X.-L., Zeng, X., Elsegood, M. R. J., Redshaw, C., Rahman, S., Georghiou, P. E., Teat, S. J., & Yamato, T. (2015). The first study about the relationship between the extractability of thiacalix[4]arene derivatives and the position of the coordination binding sites. Organic & biomolecular chemistry, 13(11), 3476-3483. https://doi.org/10.1039/c4ob02393e

Three organic ionophores (2–4) based on the p-tert-butylthiacalix[4]arene backbone, blocked in the 1,3-alternate conformation, bearing two pyridyl coordinating moieties (ortho for 2, meta for 3 and para for 4), have been synthesized and characterized... Read More about The first study about the relationship between the extractability of thiacalix[4]arene derivatives and the position of the coordination binding sites.

How polymer additives reduce the pour point of hydrocarbon solvents containing wax crystals (2015)
Journal Article
Binks, B. P., Fletcher, P. D. I., Roberts, N. A., Dunkerley, J., Greenfield, H., Mastrangelo, A., & Trickett, K. (2015). How polymer additives reduce the pour point of hydrocarbon solvents containing wax crystals. Physical chemistry chemical physics : PCCP, 17(6), 4107-4117. https://doi.org/10.1039/c4cp04329d

We have investigated how four different pour point depressant (PPD) polymers affect the pour point transition in mixtures of a single pure wax in a solvent. We used either n-eicosane (C20), CH3(CH2)18CH3, n-tetracosane (C24), CH3(CH2)22CH3 or n-hexat... Read More about How polymer additives reduce the pour point of hydrocarbon solvents containing wax crystals.

Do the short helices exist in the nematic TB phase? (2015)
Journal Article
Górecka, E., Salamończyk, M., Zep, A., Pociecha, D., Welch, C., Ahmed, Z., & Mehl, G. H. (2015). Do the short helices exist in the nematic TB phase?. Liquid crystals, 42(1), 1-7. https://doi.org/10.1080/02678292.2014.984646

Dimeric compounds forming twist-bend nematic, Ntb, phase show unusual optical textures related to the formation of arrays of focal conic defects (FCDs). Some of the focal conics exhibit submicron internal structure with 8 nm periodicity, which is ver... Read More about Do the short helices exist in the nematic TB phase?.

Positive and negative allosteric effects of thiacalix[4]arene-based receptors having urea and crown-ether moieties (2015)
Journal Article
Tomiyasu, H., Zhao, J.-L., Ni, X.-L., Zeng, X., Elsegood, M. R. J., Jones, B., Redshaw, C., Teat, S. J., & Yamato, T. (2015). Positive and negative allosteric effects of thiacalix[4]arene-based receptors having urea and crown-ether moieties. RSC advances, 5(19), 14747-14755. https://doi.org/10.1039/c4ra15905e

Heteroditopic receptors (4ₐ₋ₑ) based on a thiacalix[4]arene in the 1,3-alternate conformation, which have two urea moieties linking various phenyl groups substituted with either electron-donating or -withdrawing groups at their m-, or p-positions wit... Read More about Positive and negative allosteric effects of thiacalix[4]arene-based receptors having urea and crown-ether moieties.

Mono- and tetra-nuclear copper complexes bearing bis(imino)phenoxide derived ligands: catalytic evaluation for benzene oxidation and ROP of ε-caprolactone (2015)
Journal Article
Wang, X., Zhao, K.-Q., Elsegood, M. R. J., Prior, T. J., Liu, X., Wu, L., Sanz, S., Brechin, E. K., & Redshaw, C. (2015). Mono- and tetra-nuclear copper complexes bearing bis(imino)phenoxide derived ligands: catalytic evaluation for benzene oxidation and ROP of ε-caprolactone. RSC advances, 5(71), 57414-57424. https://doi.org/10.1039/c5ra08696e

Complexes of the type [Cu(L)₂] (1) and [Cu₄L₂(μ₄-O)(OAc)₄] (2) have been obtained from the reaction of the phenoxydiimine 1,3-(2,6-R²₂C₆H₃N=CH)₂-5-R¹ C₆H₂OH-2 (LH) (where R¹ = Me, tBu, Cl; R² = Me, iPr) with copper(II) acetate [Cu(OAc)₂]; changing th... Read More about Mono- and tetra-nuclear copper complexes bearing bis(imino)phenoxide derived ligands: catalytic evaluation for benzene oxidation and ROP of ε-caprolactone.

A fibre forming smectic twist-bent liquid crystalline phase (2015)
Journal Article
Tamba, M. G., Salili, S. M., Zhang, C., Jákli, A., Mehl, G. H., Stannarius, R., & Eremin, A. (2015). A fibre forming smectic twist-bent liquid crystalline phase. RSC advances, 5(15), 11207-11211. https://doi.org/10.1039/c4ra14669g

We demonstrate the nanostructure and filament formation of a novel liquid crystal phase of a dimeric mesogen below the twist–bend nematic phase. The new fibre-forming phase is distinguished by a short-correlated smectic order combined with an additio... Read More about A fibre forming smectic twist-bent liquid crystalline phase.

Synthesis and photochromic properties of a bis(diarylethene)-naphthopyran hybrid (2014)
Journal Article
Erko, F. G., Cseh, L., Berthet, J., Mehl, G. H., & Delbaere, S. (2015). Synthesis and photochromic properties of a bis(diarylethene)-naphthopyran hybrid. Dyes and pigments : an international journal, 115(April), 102-109. https://doi.org/10.1016/j.dyepig.2014.12.015

The synthesis and photochromic properties of a triphotochromic molecule consisting of one naphthopyran flanked by two diarylethene units investigated by UV-Visible and NMR spectroscopies are reported. Six different states resulting from the open/clos... Read More about Synthesis and photochromic properties of a bis(diarylethene)-naphthopyran hybrid.

High-pressure studies of palladium and platinum thioether macrocyclic dihalide complexes (2014)
Journal Article
Allan, D. R., Bailey, D., Bird, N., Blake, A. J., Champness, N. R., Huang, D., Keane, C. P., McMaster, J., Prior, T. J., Tidey, J. P., & Schröder, M. (2014). High-pressure studies of palladium and platinum thioether macrocyclic dihalide complexes. Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 70(3), 469-486. https://doi.org/10.1107/S2052520614008786

The mononuclear macrocyclic PdII complex cis-[PdCl 2([9]aneS3)] ([9]aneS3 = 1,4,7-trithiacyclo- nonane) converts at 44kbar into an intensely coloured chain polymer exhibiting distorted octahedral coordination at the metal centre and an unprecedented... Read More about High-pressure studies of palladium and platinum thioether macrocyclic dihalide complexes.

Compartmentalization of incompatible reagents within Pickering emulsion droplets for one-pot cascade reactions (2014)
Journal Article
Yang, H., Fu, L., Wei, L., Liang, J., & Binks, B. P. (2015). Compartmentalization of incompatible reagents within Pickering emulsion droplets for one-pot cascade reactions. Journal of the American Chemical Society, 137(3), 1362-1371. https://doi.org/10.1021/ja512337z

It is a dream that future synthetic chemistry can mimic living systems to process multistep cascade reactions in a one-pot fashion. One of the key challenges is the mutual destruction of incompatible or opposing reagents, for example, acid and base,... Read More about Compartmentalization of incompatible reagents within Pickering emulsion droplets for one-pot cascade reactions.