Publications related to Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid

Low-energy Electron Holography Microscope for Imaging of Single Molecules

Structure determination techniques are an essential tool to investigate and understand molecules, especially in biology, where functionality crucially depends on structure. The dominant high-resolution methods, such as transmission electron microscopy and ...

EPFL2022

Relation between Inner Structural Dynamics and Ion Dynamics of Laser-Heated Nanoparticles

Christoph Bostedt

When a nanoparticle is irradiated by an intense laser pulse, it turns into a nanoplasma, a transition that is accompanied by many interesting nonequilibrium dynamics. So far, most experiments on nanoplasmas use ion measurements, reflecting the outside dyna ...

American Physical Society2021

Static and dynamic properties of non-collinear quantum antiferromagnets explored by neutron scattering

Luc Testa

This thesis is devoted to the investigation of static and dynamic properties of two different sets of quantum magnets with neutron scattering techniques and the help of linear spin wave theory. Both systems are copper-based with spin-1/2, which makes them ...

EPFL2021

Water soluble derivatives of platinum carbonyl Chini clusters: synthesis, molecular structures and cytotoxicity of [Pt-12(CO)(20)(PTA)(4)](2-) and [Pt-15(CO)(25)(PTA)(5)](2-)

Paul Joseph Dyson, Lucinda Kate Batchelor, Silvia Ruggieri

The reactions of Pt-3n(CO)(6n) (n = 2-5) homoleptic Chini-type clusters with increasing amounts of 1,3,5-triaza-7-phosphaadamantane (PTA) result in the stepwise substitution of one terminal CO ligand per Pt-3 triangular unit up to the formation of [P ...

2018

alpha-Diimine homologues of cisplatin: synthesis, speciation in DMSO/water and cytotoxicity

Paul Joseph Dyson, Lucinda Kate Batchelor, Silvia Schoch

The Pt(ii) -diimine complexes [PtCl2{N-2-(HCNR)(2)}] (R = C6H11, 1; 4-C6H10OH, 2; 4-C6H4CH3, 3; 4-C6H4OH, 4) and [PtCl2{N-2-(CH3CNOH)(2)}] (5) were prepared in 60-81% yields from the 1:1 molar reactions of cis-[PtCl2(DMSO)(2)] with the appropriate -diimine ...

ROYAL SOC CHEMISTRY2018

Dinuclear arene ruthenium thiolato complexes with fluorous side-chains

Paul Joseph Dyson, Tina Riedel

Four complexes of the general formula (eta(6)-p-MeC6H4Pri)(2)Ru-2(mu-SC2H4R)(3), R = (CF2)(7)CF3 (1), (CF2)(5)CF3 (2), (CF2)(3)CF3 (3) and (CH2)(5)CH3 (4) were synthesized and characterized. The molecular structures of complexes 1 and 3 were confirmed ...

Elsevier Science Sa2016

Regioselective Nitration and/or Halogenation of Iridabenzofurans through Electrophilic Substitution

Andrew Francis Dalebrook

Regioselective electrophilic substitution reactions of the iridabenzofurans [Ir(C7H5O{OMe-7})(CO)(PPh3)(2)]-[OTf] (1) and IrCl(C7H5O{OMe-7})(PPh3)(2) (2) provide a convenient route to mononitro-, dinitro-, and mixed nitro-/halo- substituted derivatives. Tr ...

Amer Chemical Soc2016

Iridium-Stabilized pi-Selenocyclohexadienyls: Synthesis, Molecular Structure, and Cytotoxicity

Paul Joseph Dyson, Tina Riedel

A series of iridium-stabilized selenocyclohexadienyls of general formula [CpIr((5)-C6H5-nMenSe)][BF4] {Cp = (5)-C5Me5, n = 0, n = 1, and n = 3} is described, with the selenocyclohexadienyl unit being isolated for the first time by -coordination to a Cp*I ...

Georg Thieme Verlag Kg2015

Evaluation of the in vitro anticancer activity of cyclometalated half-sandwich rhodium and iridium complexes coordinated to naphthaldimine-based poly(propyleneimine) dendritic scaffolds

Paul Joseph Dyson, Catherine Marie Amélie Clavel, Fabio Edafe

The development of cyclometalated rhodium and iridium complexes from first-and second-generation naphthaldimine-based poly(propyleneimine) dendrimer scaffolds of the type, DAB-(NH2)(n) (where n = 4 or 8, DAB = diaminobutane) has been accomplished. Four met ...

Elsevier Science Sa2014

Synthesis, structural characterization and cytotoxicity of bimetallic chlorogold(I) phosphine complexes employing functionalized phosphinoferrocene carboxamides

Paul Joseph Dyson, Tina Riedel

Gold( I) phosphine complexes of the general formula [AuCl(Ph(2)PfcCONHY-kappa P)], where Y is CH2CO2Me (7), CH2CONH2 (8), CH2CH2OH (9), CH(CH2OH)(2) (10), C(CH2OH)(3) (11), and CH2SO3(HNEt3) (12), and fc is ferrocene-1,1'-diyl, were prepared from [AuCl(tht ...

Elsevier Science Sa2014

New Zn(II) complexes with N2S2 Schiff base ligands. Experimental and theoretical studies of the role of Zn(II) in disulfide thiolate-exchange

Kurt Schenk, Maryam Bagheri

Described are the synthesis and characterization of two, potentially tetradentate, N2S2 Schiff-base ligands, containing a disulfide bond, N,N'-bis(3-phenylprop-2-en-l-ylidene)-2,2'-disulfanediyldianiline (L-1) and N,N'-bis(3,3-diphenylprop-2-en-1-ylidene)- ...

Elsevier2014

Steric and electronic control over the structural diversity of N-(n-pyridinyl) diphenylphosphinic amides (n = 2 and 4) as difunctional ligands in triphenyltin(IV) adducts

Kurt Schenk, Farzaneh Fadaei Tirani

Two triphenyltin(IV) adducts of difunctional ligands, N-(n-pyridinyl) diphenylphosphinic amide (n = 2 and 4), have been synthesized and characterized by H-1, P-31, Sn-119 NMR and IR spectroscopy. The spectroscopic properties of the complexes were compared ...

Royal Soc Chemistry2014

Synthesis, Molecular Structure and Cytotoxicity of Molecular Materials Based on Water Soluble Half-Sandwich Rh(III) and Ir(III) Tetranuclear Metalla-Cycles

Paul Joseph Dyson, Benjamin Samuel Murray

The neutral dinuclear complexes [(eta(5)-C5Me5)(2)Rh-2(mu-dhnq)Cl-2] (1) and [(eta(5)-C5Me5)(2)Ir-2(mu-dhnq)Cl-2] (2) (dhnqH(2) = 5,8-dihydroxy-1,4-naphthoquinone) were obtained from the reaction of (eta(5)-C5Me5)M(mu-Cl)Cl (M = Rh, Ir) with dhnqH(2) ...

2013

Determination of the molecular structure of the short-lived light-induced high-spin state in the spin-crossover compound [Fe(6-mepy)(3)tren](PF6)(2)

Philip Pattison, Pradip Chakraborty, Antoine Tissot

In the spin-crossover compound Fe(6-mepy)(3)tren(2), (6-mepy)(3)tren=tris{4-[(6-methyl)-2-pyridyl]-3-aza-butenyl}amine, the high-spin state can be populated as a metastable state below the thermal transition temperature via irradiation into the meta ...

Amer Physical Soc2013

Free volume in ionic liquids: a connection of experimentally accessible observables from PALS and PVT experiments with the molecular structure from XRD data

Safak Bulut

In the current work, free volume concepts, primarily applied to glass formers in the literature, were transferred to ionic liquids (ILs). A series of 1-butyl-3-methylimidazolium (C4MIM) based ILs was investigated by Positron Annihilation Lifetime Spec ...

Royal Soc Chemistry2013

Arene ruthenium dichloro complexes containing isonicotinic ester ligands: Synthesis, molecular structure and cytotoxicity

Paul Joseph Dyson, Olivier Pierre Zava

A series of p-cymene ruthenium dichloro complexes containing isonicotinic ester ligands, [(arene) RuCl2NC5H4-4-COO-C6H4-p-O-(CH2)(n)-CH3] (n = 1: 1, n = 3: 2, n = 5: 3, n = 7:4, n = 9: 5, n = 11: 6, n = 13: 7, n = 15: 8), were prepared from p-cymene ruthen ...

Elsevier2013

Thiolato-bridged arene-ruthenium complexes: synthesis, molecular structure, reactivity and anticancer activity of the dinuclear complexes [(arene)2Ru2(SR)2C12]

Paul Joseph Dyson, Olivier Pierre Zava

Treatment of an areneruthenium dichloride dimer with thiols RSH to lead to cationic trithiolato complexes of the type [(arene)2Ru2(SR)3]+ was shown to proceed through the neutral thiolato complexes [(arene)2Ru2(SR)2Cl2], which have been isolated and charac ...

Wiley-Blackwell2012

Highly cytotoxic trithiophenolatodiruthenium complexes of the type [(eta(6)-p-MeC6H4Pr (i) )(2)Ru-2(SC6H4-p-X)(3)](+): synthesis, molecular structure, electrochemistry, cytotoxicity, and glutathione oxidation potential

Paul Joseph Dyson, Olivier Pierre Zava, Mathurin Baquié

A series of cationic dinuclear p-cymene ruthenium trithiophenolato complexes of the type (eta(6)-p-MeC6H4Pr (i) )(2)Ru-2(SC6H4-p-X)(3) (1 X is H, 2 X is Me, 3 X is Ph, 4 X is Br, 5 X is OH, 6 X is NO2, 7 X is OMe, 8 X is CF3, 9 X is F, 10 X is Pr (i) ...

2012

Synthesis, Molecular Structure, and Anticancer Activity of Cationic Arene Ruthenium Metallarectangles

Paul Joseph Dyson, Anna Katherine Renfrew

Cationic arene ruthenium-based tetranuclear complexes comprising rectangular structures have been obtained from the dinuclear arene ruthenium complexes [Ru2(arene)2(OO.intrsec.OO)2Cl2] (arene = p-cymene, hexamethylbenzene; OO.intrsec.OO = 2,5-dihydroxy-1,4 ...

American Chemical Society2009

Water-soluble arene ruthenium complexes containing pyridinethiolato ligands: Synthesis, molecular structure, redox properties and anticancer activity of the cations [(η6-arene)Ru(p-SC5H4NH)3]2+

Paul Joseph Dyson, Anna Katherine Renfrew

The cationic complexes [(η6-arene)Ru(SC5H4NH)3]2+, arene being C6H6 (1), MeC6H5 (2), p-iPrC6H4Me (3) or C6Me6 (4), have been synthesized from the reaction of 4-pyridinethiol with the corresponding precursor (η6-arene)2Ru2(μ2-Cl)2Cl2 and isolated as the chl ...

2008