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Professor Jonathan Steed's Outputs (156)

Anion binding inhibition of the formation of a helical organogel (2006)
Journal Article
Stanley, C., Clarke, N., Anderson, K., Elder, J., Lenthall, J., & Steed, J. (2006). Anion binding inhibition of the formation of a helical organogel. Chemical Communications, 3199-3201. https://doi.org/10.1039/b606373j

A chiral tris(urea) organogelator gels dmso–water and methanol–water mixtures at low weight percent. The formation of the helical gel fibres is partially inhibited by addition of chloride, which is bound by the gelator, resulting in fully crystalline... Read More about Anion binding inhibition of the formation of a helical organogel.

Simultaneous anion and cation binding by a simple polymer-bound ureidopyridyl ligand. (2006)
Journal Article
Russell, J. M., Parker, A. D. M., Radosavljevie-Evans, I., Howard, J. A. K., & Steed, J. W. (2006). Simultaneous anion and cation binding by a simple polymer-bound ureidopyridyl ligand. Chemical Communications, 2006(3), 269-271. https://doi.org/10.1039/b513820e

A polymer-supported ligand capable of simultaneous anion and cation binding is reported along with X-ray crystallographic data showing potential binding modes.

Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation. (2006)
Journal Article
Russell, J. M., Parker, A. D. M., Radosavljevic-Evans, I., Howard, J. A. K., & Steed, J. W. (2006). Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation. CrystEngComm, 8(2), 119-122. https://doi.org/10.1039/b516962c

An anion-bridged, hydrogen bonded coordination polymer apparently adapts its symmetry to form a Z′ = 1 or 2 structure according to the hydrogen bonding demands of the anion, and in solution there is evidence for a discrete anion-binding coordination... Read More about Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation..

Crystal engineering with ethynylbenzenes Part 2. Structures of 4-trimethylsilylethynyl-N,N-dimethylaniline, and 4-ethynyl-N,N-dimethylaniline with Z '=12 and a single-crystal to single-crystal phase transition at 122.5 +/- 2 K (2006)
Journal Article
Batsanov, A., Collings, J., Ward, R., Goeta, A., Porres, L., Beeby, A., …Marder, T. (2006). Crystal engineering with ethynylbenzenes Part 2. Structures of 4-trimethylsilylethynyl-N,N-dimethylaniline, and 4-ethynyl-N,N-dimethylaniline with Z '=12 and a single-crystal to single-crystal phase transition at 122.5 +/- 2 K. CrystEngComm, 8, 622-628. https://doi.org/10.1039/b606327f

The crystal and molecular structures of 4-ethynyl-N,N-dimethylaniline (1), and 4-(trimethylsilylethynyl)-N,N-dimethylaniline (2), have been obtained from X-ray diffraction data. Crystals of 1 exhibit a phase transition at 122.5 ± 2 K. Both polymorphs... Read More about Crystal engineering with ethynylbenzenes Part 2. Structures of 4-trimethylsilylethynyl-N,N-dimethylaniline, and 4-ethynyl-N,N-dimethylaniline with Z '=12 and a single-crystal to single-crystal phase transition at 122.5 +/- 2 K.

Helical or polar guest-dependent Z‘ = 1.5 or Z‘ = 2 forms of a sterically hindered bis(urea) clathrate. (2006)
Journal Article
Todd, A., Anderson, K., Byrne, P., Goeta, A., & Steed, J. (2006). Helical or polar guest-dependent Z‘ = 1.5 or Z‘ = 2 forms of a sterically hindered bis(urea) clathrate. Crystal Growth and Design, 6(8), 1750-1752. https://doi.org/10.1021/cg060318o

A sterically hindered bis(pyridylurea) species forms clathrates with water, methanol, and ethanol, all exhibiting unusual polar structures with Z‘ > 1. This crystal packing is due to the hindered geometry about the urea oxygen acceptor atoms.

On the protonation of a macrobicyclic cage: an inert tribenzylamine fragment and three robust aminophosphonium units. (2006)
Journal Article
Alajarín, M., López-Leonardo, C., Berná, J., & Steed, J. (2006). On the protonation of a macrobicyclic cage: an inert tribenzylamine fragment and three robust aminophosphonium units. Tetrahedron Letters, 47(30), 5405-5408. https://doi.org/10.1016/j.tetlet.2006.05.112

The protonation of a macrobicyclic cage with four intracyclic nitrogen atoms (one included into a tribenzylamine fragment and the other three into iminophosphorane units) led to tris(aminophosphonium) cations. In the salts, the three anions are situa... Read More about On the protonation of a macrobicyclic cage: an inert tribenzylamine fragment and three robust aminophosphonium units..

A modular approach to anion binding podands: adaptability in design and synthesis leads to adaptability in properties (2006)
Journal Article
Steed, J. (2006). A modular approach to anion binding podands: adaptability in design and synthesis leads to adaptability in properties. Chemical Communications, 2006(25), 2637-2649. https://doi.org/10.1039/b601511e

Progress in the development of a modular approach towards flexible anion-binding and sensing systems is reviewed within the context of related developments in conformationally flexible anion- and salt-binding hosts. The transferability of concepts an... Read More about A modular approach to anion binding podands: adaptability in design and synthesis leads to adaptability in properties.

Pyridinium CH center dot center dot center dot anion and pi-stacking interactions in modular tripodal anion binding hosts: ATP binding and solid-state chiral induction (2006)
Journal Article
Belcher, W., Fabre, M., Farhan, T., & Steed, J. (2006). Pyridinium CH center dot center dot center dot anion and pi-stacking interactions in modular tripodal anion binding hosts: ATP binding and solid-state chiral induction. Organic and Biomolecular Chemistry, 4(5), 781-786. https://doi.org/10.1039/b516027h

The preparation of two new tripodal ‘pinwheel’ type anion hosts based on a triethylbenzene core and bipyridinium or ethylnicotinium arms is reported. The new materials bind anions via CH⋯anion interactions. Complexes with Br− and PF6− have been chara... Read More about Pyridinium CH center dot center dot center dot anion and pi-stacking interactions in modular tripodal anion binding hosts: ATP binding and solid-state chiral induction.

A conformationally flexible, urea-based tripodal anion receptor: Solid-state, solution, and theoretical studies (2006)
Journal Article
Turner, D., Paterson, M., & Steed, J. (2006). A conformationally flexible, urea-based tripodal anion receptor: Solid-state, solution, and theoretical studies. Journal of Organic Chemistry, 71(4), 1598-1608. https://doi.org/10.1021/jo052339f

Tripodal tris(urea) cationic receptors 1 and 2 containing p-tolyl or octyl substituents, respectively, have been synthesized, and their association behavior with anionic guests has been studied via a variety of methods. The receptors are based around... Read More about A conformationally flexible, urea-based tripodal anion receptor: Solid-state, solution, and theoretical studies.

Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands (2005)
Journal Article
Turner, D., Smith, B., Spencer, E., Goeta, A., Evans, I., Tocher, D., …Steed, J. (2005). Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands. New Journal of Chemistry, 29(1), 90-98

A series of Ag(I) complexes of ureidopyridyl ligands 1 and 2 have been prepared from oxo-anion salts. In all cases the new materials contain the AgL2+ cation interacting with oxo-anions via the urea moiety. The complexes containing the para ligand 2:... Read More about Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands.

Hydrogen bonds between ammonium ions and aromatic rings exist and have key consequences on solid-state and solution phase properties (2005)
Journal Article
Ilioudis, C., Bearpark, M., & Steed, J. (2005). Hydrogen bonds between ammonium ions and aromatic rings exist and have key consequences on solid-state and solution phase properties. New Journal of Chemistry, 29(1), 64-67

A very small azaphane that exhibits high a. nity for H+ has been synthesised. Included protons are stabilised by a charge-assisted NH-pi interaction and hence the bound proton is effectively solvated by the aromatic ring. Exchange of H+ is slow on th... Read More about Hydrogen bonds between ammonium ions and aromatic rings exist and have key consequences on solid-state and solution phase properties.

Stereoselective synthesis of 2,5-disubstituted-1,4-oxathiane S-oxides (2005)
Journal Article
Bedford, S., Grainger, R., Steed, J., & Tisselli, P. (2005). Stereoselective synthesis of 2,5-disubstituted-1,4-oxathiane S-oxides. Organic and Biomolecular Chemistry, 3(3), 404-406

beta-Allyloxy and beta-propargyloxy tert-butyl sulfoxides undergo tandem sulfoxide eliminination-intramolecular sulfenic acid addition reactions to produce 1,4-oxathiane S-oxides.

Polyaza metacyclophanes as ditopic anion receptors (2005)
Journal Article
Ilioudis, C., & Steed, J. (2005). Polyaza metacyclophanes as ditopic anion receptors. Organic and Biomolecular Chemistry, 3(16), 2935-2945

Five macrocyclic polyaza metacyclophanes L-1 - L-5 prepared by dipode coupling of the tosylated precursors have been studied. The basicity of the ligands has been measured potentiometrically and their ability to complex halides and perchlorate has be... Read More about Polyaza metacyclophanes as ditopic anion receptors.

Complex Formation and Rearrangement Reactions of the Phosphine Hydride Anions [OsH3(PPh3)3]- and [IrH2(PPh3)3]- (2005)
Journal Article
Guilera, G., McGrady, G., Steed, J., & Jones, A. (2006). Complex Formation and Rearrangement Reactions of the Phosphine Hydride Anions [OsH3(PPh3)3]- and [IrH2(PPh3)3]-. Organometallics, 25(1), 122-127. https://doi.org/10.1021/om050391w

[OsH4(PPh3)3] (1) reacts with KH in THF in the presence of 18-crown-6 to form [K(THF)(18-crown-6)][OsH3(PPh3)3] (2), characterized by NMR spectroscopy and X-ray crystallography; cation−anion contact is achieved through three Os−H···K moieties. In con... Read More about Complex Formation and Rearrangement Reactions of the Phosphine Hydride Anions [OsH3(PPh3)3]- and [IrH2(PPh3)3]-.

Modular assembly of a preorganised, ditopic receptor for dicarboxylates. (2005)
Journal Article
Filby, M., Humphries, T., Turner, D., Kataky, R., Kruusma, J., & Steed, J. (2006). Modular assembly of a preorganised, ditopic receptor for dicarboxylates. Chemical Communications, 2006(2), 156-158. https://doi.org/10.1039/b512779c

Two types of calix[4]arene derived hosts for anions with, respectively, 1,3-alternate and cone conformations have been prepared; the 1,3-alternate system binds dicarboxylate anions in a ditopic manner while the cone compounds are deprotonated by carb... Read More about Modular assembly of a preorganised, ditopic receptor for dicarboxylates..

Synthesis, characterisation and natural abundance Os-187 NMR spectroscopy of hydride bridged triosmium clusters with chiral diphosphine ligands (2005)
Journal Article
Stchedroff, M., Moberg, V., Rodriguez, E., Aliev, A., Böttcher, J., Steed, J., …Deeming, A. (2006). Synthesis, characterisation and natural abundance Os-187 NMR spectroscopy of hydride bridged triosmium clusters with chiral diphosphine ligands. Inorganica Chimica Acta, 359(3), 926-937. https://doi.org/10.1016/j.ica.2005.06.048

Treatment of [Os3(μ-H)2(CO)10] with the chiral diphosphines BINAP, tolBINAP [(R)-2,2′-bis(di-4-tolylphosphino)-1,1′-binaphthyl], DIOP [(4R,5R)-(−)-O-isopropenylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane] affords [Os3(μ-H)2(CO)8(μ-L)] (L = B... Read More about Synthesis, characterisation and natural abundance Os-187 NMR spectroscopy of hydride bridged triosmium clusters with chiral diphosphine ligands.

Cooperative hydrogen-bonding effects in a water square: A single-crystal neutron and partial atomic charges and hardness analysis study (2005)
Journal Article
Turner, D., Henry, M., Wilkinson, C., McIntyre, G., Mason, S., Goeta, A., & Steed, J. (2005). Cooperative hydrogen-bonding effects in a water square: A single-crystal neutron and partial atomic charges and hardness analysis study. Journal of the American Chemical Society, 127(31), 11063-11074. https://doi.org/10.1021/ja052081a

Four isomorphous complexes of formula [M(L)(4)(H2O)(2)]SO(4)center dot 2H(2)O (M = CO, 1a; Ni, 1b; Cu, 1c; Zn, 1d) have been isolated and characterized by single-crystal X-ray diffraction and neutron diffraction using the quasi-Laue diffractometer VI... Read More about Cooperative hydrogen-bonding effects in a water square: A single-crystal neutron and partial atomic charges and hardness analysis study.

A study of Co-2(alkyne)(binap)(CO)(4) complexes (BINAP = (1,1 '-binaphthalene)-2,2 '-diylbis(diphenylphosphine)) (2005)
Journal Article
Gibson, S., Kaufmann, K., Loch, J., Steed, J., & White, A. (2005). A study of Co-2(alkyne)(binap)(CO)(4) complexes (BINAP = (1,1 '-binaphthalene)-2,2 '-diylbis(diphenylphosphine)). Chemistry - A European Journal, 11(8), 2566-2576

Understanding the interaction of chiral ligands, alkynes, and alkenes with cobaltcarbonyl sources is critical to learning more about the mechanism of the catalytic, asymmetric Pauson-Khand reaction. We have successfully characterized complexes of the... Read More about A study of Co-2(alkyne)(binap)(CO)(4) complexes (BINAP = (1,1 '-binaphthalene)-2,2 '-diylbis(diphenylphosphine)).

Molecular containers: Design approaches and applications (2004)
Journal Article
Turner, D., Pastor, A., Alajarin, M., & Steed, J. (2004). Molecular containers: Design approaches and applications

The design and synthesis of molecular containers is playing an increasing role in the selective removal and detection of species within solution. The cavities offered by such species provide the possibility of three-dimensional molecular recognition... Read More about Molecular containers: Design approaches and applications.