All Outputs (1143)

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.

Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals (2009)
Journal Article
Stackhouse, P. J., & Hird, M. (2009). Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals. Liquid crystals, 36(9), 953-965. https://doi.org/10.1080/02678290903165490

Three series of novel acetylene-containing triphenylene-based liquid crystals have been prepared. One class of material is symmetrical with the acetylenic unit located at the terminus of a peripheral alkynyloxy chain in a peripheral position at the t... Read More about Influence of acetylene-containing peripheral chains on the mesomorphic properties of triphenylene-based liquid crystals.

An ellipsometry study of silica nanoparticle layers at the water surface (2009)
Journal Article
Zang, D., Stocco, A., Langevin, D., Wei, B., & Binks, B. P. (2009). An ellipsometry study of silica nanoparticle layers at the water surface. Physical chemistry chemical physics : PCCP, 11(41), 9522-9529. https://doi.org/10.1039/b907903c

We have studied silica nanoparticle layers spread at the air/water interface. The surface pressure of the layers has been determined in a Langmuir trough via two orthogonal Wilhelmy plates. We observed significant differences in surface pressure acco... Read More about An ellipsometry study of silica nanoparticle layers at the water surface.

Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ (2009)
Journal Article
Headspith, D. A., Sullivan, E., Greaves, C., & Francesconi, M. G. (2009). Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ. Dalton Transactions : an international journal of inorganic chemistry, 9273-9279. https://doi.org/10.1039/b908591b

Ce 2 MnN 3 F 2-δ has been synthesised via low-temperature fluorination of the ternary nitride Ce 2 MnN 3 . To the best of our knowledge, Ce 2 MnN 3 F 2-δ is the first quaternary nitride-fluoride to be reported. The reaction of Ce 2 MnN 3 with 10% F 2... Read More about Synthesis and characterisation of the quaternary nitride-fluoride Ce2MnN3F2-δ.

Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow (2009)
Journal Article
Peyman, S. A., Iles, A., & Pamme, N. (2009). Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow. Lab on a chip, 9(21), 3110-3117. https://doi.org/10.1039/b904724g

An extremely versatile microfluidic device is demonstrated in which multi-step (bio) chemical procedures can be performed in continuous flow. The system operates by generating several co-laminar flow streams, which contain reagents for specific (bio)... Read More about Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow.

Novel multifunctional micro-ampoules for structuring and encapsulation (2009)
Journal Article
Campbell, A. L., Stoyanov, S. D., & Paunov, V. N. (2009). Novel multifunctional micro-ampoules for structuring and encapsulation. Chemphyschem, 10(15), 2599-2602. https://doi.org/10.1002/cphc.200900317

Micro-ampoules: A novel method for the scalable fabrication of micro-rodcapsules made from edible materials is described. The capsules closely resemble ampoules by having multiple compartments loaded with oils (see picture). Such novel micro-ampoules... Read More about Novel multifunctional micro-ampoules for structuring and encapsulation.

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.

Molecular complexity and the control of self-organising processes (2009)
Journal Article
Goodby, J. W., Saez, I. M., Cowling, S. J., Gasowska, J. S., MacDonald, R. A., Sia, S., Watson, P., Toyne, K. J., Hird, M., Lewis, R. A., Lee, S.-E., & Vaschenko, V. (2009). Molecular complexity and the control of self-organising processes. Liquid crystals, 36(6-7), 567-605. https://doi.org/10.1080/02678290903146060

In this article we investigate the complexity of the molecular architectures of liquid crystals based on rod-like mesogens. Starting from simple monomeric systems founded on fluoroterphenyls, we first examine the effects of aromatic core structure on... Read More about Molecular complexity and the control of self-organising processes.

Melaminium 2,4,6-trihydroxybenzoate dihydrate (2009)
Journal Article
Prior, T. J., Goch, O., & Kift, R. L. (2009). Melaminium 2,4,6-trihydroxybenzoate dihydrate. Acta Crystallographica Section E: Crystallographic Communications, 65(9), O2133-U1847. https://doi.org/10.1107/S1600536809031055

In the title compound, C 3 H 7 N 6 + ·C 7 H 5 O 5 - ·2H 2 O, the melaminium and benzoate ions are approximately planar (r.m.s. deviation of the non-hydrogen atoms is 0.093 Å) and there is a strong C 2 2 (8) hydrogen-bonding embrace between them. The... Read More about Melaminium 2,4,6-trihydroxybenzoate dihydrate.

Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles (2009)
Journal Article
Rodrigues, J. A., & Binks, B. P. (2009). Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles. Colloids and surfaces. A, Physicochemical and engineering aspects, 345(1-3), 195-201. https://doi.org/10.1016/j.colsurfa.2009.05.001

The double inversion of emulsions from oil-in-water (o/w) to water-in-oil (w/o) and back to o/w is a novel approach developed using oppositely charged mixtures of solid particles and surfactant molecules [B.P. Binks, J.A. Rodrigues, Angew. Chem. Int.... Read More about Influence of surfactant structure on the double inversion of emulsions in the presence of nanoparticles.

Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser (2009)
Journal Article
Oakley, J. A., Robinson, S., Dyer, C. E., Greenman, J., Greenway, G. M., & Haswell, S. J. (2009). Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser. Analytica Chimica Acta, 652(1-2), 239-244. https://doi.org/10.1016/j.aca.2009.07.063

An integrated gel supported micro-fluidic system is reported, in which PCR products can be efficiently injected into a capillary electrophoresis device. The gel supported system is designed to provide greater stability to reagents during long periods... Read More about Development of a gel-to-gel electro-kinetic pinched injection method for an integrated micro-fluidic based DNA analyser.

Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics (2009)
Journal Article
Greenway, G., Haswell, S. J., & He, P. (2010). Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics. Microfluidics and Nanofluidics, 8(5), 565-573. https://doi.org/10.1007/s10404-009-0476-8

This paper describes a simple and efficient method for producing an on-chip enzyme immobilized monolith micro-reactor that integrates a microfluidic electrochemical cell for rapid characterization of enzymatic kinetics. The monolith was generated usi... Read More about Development of enzyme immobilized monolith micro-reactors integrated with microfluidic electrochemical cell for the evaluation of enzyme kinetics.

Anionic amphiphilic end-linked conetworks by the combination of quasiliving carbocationic and group transfer polymerizations (2009)
Journal Article
Kali, G., Georgiou, T. K., Iván, B., & Patrickios, C. S. (2009). Anionic amphiphilic end-linked conetworks by the combination of quasiliving carbocationic and group transfer polymerizations. Journal of Polymer Science Part A: Polymer Chemistry, 47(17), 4289-4301. https://doi.org/10.1002/pola.23481

A series of amphiphilic end-linked conetworks was synthesized by the combination of two "quasiliving" polymerization techniques, quasiliving carbocationic (QLCCP) and group transfer polymerizations (GTP). The hydrophobic monomer was polyisobutylene m... Read More about Anionic amphiphilic end-linked conetworks by the combination of quasiliving carbocationic and group transfer polymerizations.

Ionothermal synthesis, structure and characterization of three-dimensional zinc phosphates (2009)
Journal Article
Liu, L., Wragg, D. S., Zhang, H., Kong, Y., Byrne, P. J., Prior, T. J., Warren, J. E., Lin, Z., Dong, J., & Morris, R. E. (2009). Ionothermal synthesis, structure and characterization of three-dimensional zinc phosphates. Dalton Transactions : an international journal of inorganic chemistry, 6715-6718. https://doi.org/10.1039/b906934h

The first metal phosphate analogue of the zeolite Na-J (framework type JBW) has been synthesized by an ionothermal approach along with zincophosphate thomsonite.

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.

Intercalated brucite-type layered cobalt(II) hydroxysulfate (2009)
Journal Article
Yotnoi, B., Luachan, S., Prior, T. J., & Rujiwatra, A. (2009). Intercalated brucite-type layered cobalt(II) hydroxysulfate. Acta Crystallographica Section E: Crystallographic Communications, 65(7), I52-U139. https://doi.org/10.1107/S160053680902251X

In an attempt to synthesize new cobalt(II) sulfate framework structures using 1,4-diazabicyclo[2.2.2]octane as a template, crystals of poly[0.35-[hexaaquacobalt(II)] [tri-μ-hydroxido-μ-sulfato-dicobalt(II)]], {[Co(H 2 O) 6 ] 0.35 [Co 2 (OH) 3 (SO 4... Read More about Intercalated brucite-type layered cobalt(II) hydroxysulfate.

Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices (2009)
Journal Article
Peyman, S. A., Kwan, E. Y., Margarson, O., Iles, A., & Pamme, N. (2009). Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices. Journal of Chromatography A, 1216(52), 9055-9062. https://doi.org/10.1016/j.chroma.2009.06.039

We report the exploration of diamagnetic repulsion forces for the selective manipulation of microparticles inside microfluidic devices. Diamagnetic materials such as polymers are repelled from magnetic fields, an effect greatly enhanced by suspending... Read More about Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices.

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.

On-chip diamagnetic repulsion in continuous flow (2009)
Journal Article
Tarn, M. D., Hirota, N., Iles, A., & Pamme, N. (2009). On-chip diamagnetic repulsion in continuous flow. Science and Technology of Advanced Materials, 10(1), 014611 - 014611. https://doi.org/10.1088/1468-6996/10/1/014611

We explore the potential of a microfluidic continuous flow particle separation system based on the repulsion of diamagnetic materials from a high magnetic field. Diamagnetic polystyrene particles in paramagnetic manganese (II) chloride solution were... Read More about On-chip diamagnetic repulsion in continuous flow.

Transition metal pnictide-halides: A class of under-explored compounds (2009)
Journal Article
Headspith, D. A., & Francesconi, M. G. (2009). Transition metal pnictide-halides: A class of under-explored compounds. Topics in catalysis, 52(11), 1611-1627. https://doi.org/10.1007/s11244-009-9282-5

In terms of application, mixed anion compounds have attracted far less attention than mixed cation systems. Interest in the catalytic properties of nitrides has been driven, in part, by their accessibility through new, improved synthesis routes. Alth... Read More about Transition metal pnictide-halides: A class of under-explored compounds.