Dalton Transactions

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Chemical, radiochemical and biological studies of new gallium(III) complexes with hexadentate chelators

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3342-3355
DOI: 10.1039/C4DT02274B, PaperFrancisco Silva, Maria Paula C. Campello, Lurdes Gano, Celia Fernandes, Isabel C. Santos, Isabel Santos, Jose R. Ascenso, M. Joao Ferreira, Antonio Paulo
New Ga3+ complexes with hexadentate chelators were prepared using natural gallium and radiogallium, and showed some favorable features for radiopharmaceutical research.
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Monooxygenation of an appended phenol in a model system of tyrosinase: implications on the enzymatic reaction mechanism

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3251-3258
DOI: 10.1039/C4DT03010A, PaperJessica Nadine Hamann, Malte Rolff, Felix Tuczek
A new model system of tyrosinase was established that performs an ortho-hydroxylation of the appended phenol in the absence of base.
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Synthesis and anticancer activity evaluation of [small eta]5-C5(CH3)4R ruthenium complexes bearing chelating diphosphine ligands

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3265-3270
DOI: 10.1039/C4DT02748E, PaperA. Rodriguez-Barzano, R. M. Lord, A. M. Basri, R. M. Phillips, A. J. Blacker, P. C. McGowan
A series of ruthenium complexes with [small eta]5-C5(CH3)4R and diphosphine ligands have been synthesised and evaluated in vitro as anticancer agents. IC50 values in the nanomolar range have been obtained against two types of cell lines.
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Intense photo- and tribo-luminescence of three tetrahedral manganese(II) dihalides with chelating bidentate phosphine oxide ligand

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3289-3294
DOI: 10.1039/C4DT03694H, PaperJun Chen, Qing Zhang, Fa-Kun Zheng, Zhi-Fa Liu, Shuai-Hua Wang, A-Qing Wu, Guo-Cong Guo
Three air-stable centrosymmetric tetrahedral manganese(II) dihalide complexes with chelating bidentate phosphine oxide ligand display intense green photoluminescence with a total quantum yield varying from 32 to 70% and vivid triboluminescence.
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Remote control of SMM behaviour via DTE ligands

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,2936-2942
DOI: 10.1039/C4DT02618G, PerspectiveGoulven Cosquer, Brian K. Breedlove, Masahiro Yamashita
Herein the use of DTE ligands to remotely control the magnetic properties of single-molecule magnets is discussed.
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Intercalation of triethylphosphine oxide bearing a phosphoryl group into Dion-Jacobson-type ion-exchangeable layered perovskites

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3002-3008
DOI: 10.1039/C4DT02230K, PaperNagisa Toihara, Yoriyoshi Yoneyama, Akira Shimada, Seiichi Tahara, Yoshiyuki Sugahara
Triethylphosphine oxide [(C2H5)3P[double bond, length as m-dash]O; TEPO] was intercalated into protonated Dion-Jacobson-type ion-exchangeable layered perovskites, HLaNb2O7[middle dot]xH2O and HCa2Nb3O10[middle dot]xH2O, by hydrolysis of their n-decoxy derivatives in the presence of TEPO.
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Computational insights into the photodeactivation dynamics of phosphors for OLEDs: a perspective

5 February, 2015 - 00:54

Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03804E, PerspectiveDaniel Escudero, Denis Jacquemin
In this perspective we highlight recent computational efforts to unravel competing photodeactivation mechanisms of radiative and non-radiative nature of phosphors.
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Solid-phase cyclopalladation in S,C,S[prime or minute]-pincer systems: rising alternative for synthesis in solution

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3216-3226
DOI: 10.1039/C4DT03477E, PaperDiana V. Aleksanyan, Zinaida S. Klemenkova, Andrei A. Vasil'ev, Arkadii Ya. Gorenberg, Yulia V. Nelyubina, Vladimir A. Kozlov
Cyclopalladation of pincer ligands can proceed efficiently in the solid state, serving as a powerful alternative for synthesis in solution.
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Three new solvent-directed Cd(II)-based MOFs with unique luminescent properties and highly selective sensors for Cu2+ cations and nitrobenzene

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3271-3277
DOI: 10.1039/C4DT03415E, PaperYunlong Wu, Guo-Ping Yang, Yanqing Zhao, Wei-Ping Wu, Bo Liu, Yao-Yu Wang
Three new solvent-directed MOFs were yielded in different solvent systems. The luminescent properties of the MOFs were studied via UV light at ambient temperature, especially for 3, which showed highly selective sensitivity for sensing Cu2+ ions and NB molecules.
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Core substituted naphthalene diimide - metallo bisterpyridine supramolecular polymers: synthesis, photophysics and morphology

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3176-3184
DOI: 10.1039/C4DT02719A, PaperHamideh Shokouhi Mehr, Natalie C. Romano, Rashid Altamimi, Jody M. Modarelli, David A. Modarelli
A series of metallo Ru(II), Fe(II), Co(II) bisterpyridine polymers were prepared with core-substituted naphthalene diimide (NDI) groups inserted between two 4[prime or minute]-phenyl-2,2:6[prime or minute],2[prime or minute][prime or minute]-terpyridine (phtpy) groups.
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Thermoelectric properties and chlorine doping effect of In4Pb0.01Sn0.03Se2.9Clx polycrystalline compounds

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3185-3189
DOI: 10.1039/C4DT03432E, PaperJin Hee Kim, Min Jae Kim, Suekyung Oh, Jong-Soo Rhyee, Su-Dong Park, Docheon Ahn
Enhanced thermoelectric figure of merit ZT = 1.25 at 723 K for n-type In4Pb0.01Sn0.03Se2.9Clx (x = 0.04) polycrystalline materials.
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Four linear CuII3 subunit-based coordination polymers with various inter-subunit connections, spin ground-states and intra-/inter-subunit magnetic couplings

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3190-3199
DOI: 10.1039/C4DT03741C, PaperEn-Cui Yang, Zhong-Yi Liu, Si-Hang Chen, Yan-Hong Su, Yan-Yan Zhang, Xiao-Jun Zhao
Four 4-amino-1,2,4-triazole-based complexes, including three bent chains and one pillared-layer framework, were reported, which exhibit various linear CuII3 subunits, inter-subunit connections, spin ground-states and magnetic couplings.
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A relationship between structural and electronic order-disorder effects and optical properties in crystalline TiO2 nanomaterials

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3159-3175
DOI: 10.1039/C4DT03254C, PaperE. Silva Junior, F. A. La Porta, M. S. Liu, J. Andres, J. A. Varela, E. Longo
The focus of this paper is on the analysis of the structural and electronic order-disorder effects at long, medium and short ranges of titanium dioxide (TiO2) nanoparticles synthesized by the sol-gel process followed by the microwave-assisted solvothermal (MAS) method.
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Gas-phase reaction of CeVO5+ cluster ions with C2H4: the reactivity of cluster bonded peroxides

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3128-3135
DOI: 10.1039/C4DT03398A, PaperJia-Bi Ma, Jing-Heng Meng, Sheng-Gui He
The reactivity of the peroxide unit with hydrocarbon molecules on transition metal oxide clusters with a closed-shell electronic structure has been identified for the first time.
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Controlling the redox properties of a pyrroloquinolinequinone (PQQ) derivative in a ruthenium(II) coordination sphere

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3151-3158
DOI: 10.1039/C4DT03358B, PaperHiroumi Mitome, Tomoya Ishizuka, Yoshihito Shiota, Kazunari Yoshizawa, Takahiko Kojima
Difference in the coordination modes of pyrroloquinolinequinone (PQQ), a redox-active heteroaromatic cofactor, in ruthenium(II) complexes, drastically affects the stability of the metal coordination and the reversibility of the reduction process of the PQQ ligand. Additional metal-ion binding to the PQQ ligand largely raises its 1e--reduction potential.
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Fixed distance photoinduced electron transfer between Fe and Zn porphyrins encapsulated within the Zn HKUST-1 metal organic framework

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,2959-2963
DOI: 10.1039/C4DT02685C, CommunicationRandy W. Larsen, Lukasz Wojtas
An attractive strategy for the development of photocatalytic metal organic framework (MOF) materials is to co-encapsulate a photoactive electron donor with a catalytic electron acceptor within the MOF.
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Carbon monoxide release properties and molecular structures of phenylthiolatomanganese(I) carbonyl complexes of the type [(OC)4Mn([small mu ]-S-aryl)]2

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3020-3033
DOI: 10.1039/C4DT03567D, PaperRalf Mede, Vaneza Paola Lorett-Velasquez, Moritz Klein, Helmar Gorls, Michael Schmitt, Guido Gessner, Stefan H. Heinemann, Jurgen Popp, Matthias Westerhausen
Arylthiolatomanganese(I) tetracarbonyls form dimers or trimers and show a two-step CO release, triggered by ligand exchange and irradiation.
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The synthesis of ZnO/SnO2 porous nanofibers for dye adsorption and degradation

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3034-3042
DOI: 10.1039/C4DT03382E, PaperXiang Chen, Feng Zhang, Qian Wang, Xiao Han, Xin Li, Jiuyu Liu, Huiming Lin, Fengyu Qu
ZnO/SnO2 hetero-nanofibers about 250 nm in diameter and several micrometers in length are synthesized via an electrospun method using zinc chloride and stannous chloride as inorganic sources.
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Highly stable and sensitive LnMOF ratiometric thermometers constructed with mixed ligands

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3067-3074
DOI: 10.1039/C4DT03421J, PaperYongqin Wei, Rongjian Sa, Qiaohong Li, Kechen Wu
By introducing ancillary ligands into M'LnMOFs and removing coordinated water molecules from the inner coordination sphere, we have successfully realized two types of highly stable and sensitive thermometers that in addition exhibit brilliant luminescence over a wide temperature range, providing a new strategy to explore luminescence-based M'LnMOF thermometers.
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DOX-Cu9S5@mSiO2-PG composite fibers for orthotopic synergistic chemo- and photothermal tumor therapy

5 February, 2015 - 00:54

Dalton Trans., 2015, 44,3118-3127
DOI: 10.1039/C4DT03113J, PaperYinyin Chen, Zhiyao Hou, Bei Liu, Shanshan Huang, Chunxia Li, Jun Lin
A composite antitumor drug carrier platform, in which antitumor drug doxorubicin (DOX) loaded Cu9S5@mSiO2 nanoparticles were incorporated into poly([varepsilon]-caprolactone) and gelatin to form nanofibrous fabrics using an electrospinning process, was successfully assembled.
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