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David Parker's Outputs (13)

Towards rational design of fast water-exchanging Gd(dota-like) contrast agents? Importance of the M/m ratio (2001)
Journal Article
Dunand, F., Dickins, R., Parker, D., & Merbach, A. (2001). Towards rational design of fast water-exchanging Gd(dota-like) contrast agents? Importance of the M/m ratio. Chemistry - A European Journal, 7(23), 5160-5167

H-1 NMR line-shape analysis and magnetisation-transfer experiments at variable temperature and pressure have been used to elucidate the solution dynamics of both M and m isomers of three [Eu(dota-tetraamide)(H2O)](3+) complexes. The direct H-1 NMR ob... Read More about Towards rational design of fast water-exchanging Gd(dota-like) contrast agents? Importance of the M/m ratio.

A Preparative and Solution Study of a Modified b-Cyclodextrin and its Europium(III) Complex, and their Interactions with Racemic Amino Acid Anions. (2001)
Journal Article
Kean, S., Easton, C., Lincoln, S., & Parker, D. (2001). A Preparative and Solution Study of a Modified b-Cyclodextrin and its Europium(III) Complex, and their Interactions with Racemic Amino Acid Anions. Australian Journal of Chemistry, 54(8), 535-539. https://doi.org/10.1071/ch01102

The synthesis and characterization of 6A-deoxy-6A-(1,4,7-tri(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-10-yl)-β-cyclodextrin (1b) are reported. A fluorescence lifetime study of its Eu3+ complex (1c) is consistent with one water coordinating Eu... Read More about A Preparative and Solution Study of a Modified b-Cyclodextrin and its Europium(III) Complex, and their Interactions with Racemic Amino Acid Anions..

Lanthanide macrocyclic quinolyl conjugates as luminescent molecular-level devices (2001)
Journal Article
Gunnlaugsson, T., Mac Donaill, D., & Parker, D. (2001). Lanthanide macrocyclic quinolyl conjugates as luminescent molecular-level devices. Journal of the American Chemical Society, 123(51), 12866-12876

The Eu(III) tetraazamacrocyclic complexes [Eu.1] and [Eu.2], and the Tb(III) and Yb(III) complexes [Tb.1] and [Yb.2], have been synthesized as luminescent molecular-level devices. The Eu complexes exhibit unique dual pH switching behavior in water un... Read More about Lanthanide macrocyclic quinolyl conjugates as luminescent molecular-level devices.

Experimental assessment of lanthanide ion donor preference: spectroscopic and theoretical dissection of static charge and dynamic polarisation contributions to axial ligation in a C-4- symmetric chiral europium complex (2001)
Journal Article
Bruce, J., Parker, D., & Tozer, D. (2001). Experimental assessment of lanthanide ion donor preference: spectroscopic and theoretical dissection of static charge and dynamic polarisation contributions to axial ligation in a C-4- symmetric chiral europium complex. Chemical Communications, 2250-2251

Measurements of the equilibrium constants for ligand exchange (MeCN, 295 K) involving the axial donor in a C-4-symmetric, mono-capped, square antiprismatic cationic Eu complex, supported by calculations based on an electrostatic perturbation model, h... Read More about Experimental assessment of lanthanide ion donor preference: spectroscopic and theoretical dissection of static charge and dynamic polarisation contributions to axial ligation in a C-4- symmetric chiral europium complex.

A stable, high relaxivity, diaqua gadolinium complex that suppresses anion and protein binding (2001)
Journal Article
Messeri, D., Lowe, M. P., Parker, D., & Botta, M. (2001). A stable, high relaxivity, diaqua gadolinium complex that suppresses anion and protein binding. Chemical Communications, 2742-2743. https://doi.org/10.1039/b108294a

The high relaxivity of [GdaDO3A](3-) (r(1p) = 12.3 mM(-1) s(- 1), 20 MHz, 298 K, iota (m) = 30 ns) in water is maintained in serum solution because the binding of protein and endogeneous anions, e.g. HCO3-/CO32- is suppressed by electrostatic repulsi... Read More about A stable, high relaxivity, diaqua gadolinium complex that suppresses anion and protein binding.

Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass (2001)
Journal Article
Blair, S., Lowe, M., Mathieu, C., Parker, D., Senanayake, P., & Kataky, R. (2001). Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass. Inorganic Chemistry, 40(23), 5860-5867

The metal-based emission of a series of luminescent europium and terbium complexes incorporating an aromatic chromophore is rendered pH-dependent either through perturbation of the aryl singlet or triplet energy or by modulating the degree of quenchi... Read More about Narrow-range optical pH sensors based on luminescent europium and terbium complexes immobilized in a sol gel glass.

Chiral lanthanide complexes (2001)
Journal Article
Kean, S., Bobba, G., Mathieu, C., Parker, D., & Smith, M. (2001). Chiral lanthanide complexes. Journal of Inorganic Biochemistry, 86(1), 290-290

DNA binding studies of cationic lanthanide complexes bearing a phenanthridinium group (2001)
Journal Article
Bobba, G., Kean, S., Parker, D., Beeby, A., & Baker, G. (2001). DNA binding studies of cationic lanthanide complexes bearing a phenanthridinium group. Journal of the Chemical Society-Perkin Transactions 2, 2001(9), 1738-1741. https://doi.org/10.1039/B104795G

The binding of tetracationic Lambda- and Delta -europium complexes of tetraamide and triamide ligands incorporating an N-methylphenanthridinium group to calf-thymus DNA, poly(dGdC) and super-coiled plasmid DNA has been monitored by absorption, lumine... Read More about DNA binding studies of cationic lanthanide complexes bearing a phenanthridinium group.

Sensitised luminescence from phenanthridine appended lanthanide complexes: analysis of triplet mediated energy transfer processes in terbium, europium and neodymium complexes (2001)
Journal Article
Beeby, A., Faulkner, S., Parker, D., & Williams, J. (2001). Sensitised luminescence from phenanthridine appended lanthanide complexes: analysis of triplet mediated energy transfer processes in terbium, europium and neodymium complexes. Journal of the Chemical Society-Perkin Transactions 2, 2001(8), 1268-1273. https://doi.org/10.1039/B009624P

Time resolved luminescence spectroscopy and laser flash photolysis have been used to probe the energy transfer processes in the europium, neodymium and terbium complexes of ligand, 1. The ligand, chosen because of the high kinetic stability of lantha... Read More about Sensitised luminescence from phenanthridine appended lanthanide complexes: analysis of triplet mediated energy transfer processes in terbium, europium and neodymium complexes.

pH-dependent modulation of relaxivity and luminescence in macrocyclic gadolinium and europium complexes based on reversible intramolecular sulfonamide ligation (2001)
Journal Article
Lowe, M., Parker, D., Reany, O., Aime, S., Botta, M., Castellano, G., …Pagliarin, R. (2001). pH-dependent modulation of relaxivity and luminescence in macrocyclic gadolinium and europium complexes based on reversible intramolecular sulfonamide ligation. Journal of the American Chemical Society, 123(31), 7601-7609. https://doi.org/10.1021/ja0103647

A series of macrocyclic Eu, Gd, and Tb complexes has been prepared in which the intramolecular ligation of a beta - arylsulfonamide nitrogen is rendered pH-dependent, giving rise to changes in the hydration state, q, at the lanthanide center. In comp... Read More about pH-dependent modulation of relaxivity and luminescence in macrocyclic gadolinium and europium complexes based on reversible intramolecular sulfonamide ligation.

pH Switched sensitisation of europium(III) by a dansyl group (2001)
Journal Article
Lowe, M., & Parker, D. (2001). pH Switched sensitisation of europium(III) by a dansyl group. Inorganica Chimica Acta, 317(1-2), 163-173

The Eu(III), Tb(III) and Y(III) complexes of an eight- coordinate ligand containing a pendant dansylamidoethyl group were synthesised. Reversible intramolecular binding of the dansylamide nitrogen was demonstrated by UV absorption and luminescence pH... Read More about pH Switched sensitisation of europium(III) by a dansyl group.