Dalton Transactions

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Harnessing medically relevant metals onto water-soluble subphthalocyanines: towards bimodal imaging and theranostics

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3200-3208
DOI: 10.1039/C4DT03536D, PaperYann Bernhard, Pascale Winckler, Jean-Marie Perrier-Cornet, Richard A. Decreau
Water-soluble subphthalocyanine (SubPc) - chelating ligands (DOTA, DTPA) conjugates were complexed with six metals relevant to medical imaging/therapies (MRI, PET, SPECT, RIT, NCT). Magneto-optical properties of the ditopic Gd complex and cellular microscopy studies were reported.
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Synthesis, characterisation and properties of rare earth oxyselenides A4O4Se3 (A = Eu, Gd, Tb, Dy, Ho, Er, Yb and Y)

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3009-3019
DOI: 10.1039/C4DT03336A, PaperAndrew J. Tuxworth, Chun-Hai Wang, John S. O. Evans
We report the synthesis of new A4O4Se3 (A = rare earth element) materials and identify three new structure types ([small beta], [gamma], [small delta]).
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Synthesis and characterisation of nickel Schiff base complexes containing the meso-1,2-diphenylethylenediamine moiety: selective interactions with a tetramolecular DNA quadruplex

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3136-3150
DOI: 10.1039/C4DT02926G, PaperKimberley J. Davis, Christopher Richardson, Jennifer L. Beck, Brett M. Knowles, Aurore Guedin, Jean-Louis Mergny, Anthony C. Willis, Stephen F. Ralph
Two nickel(II) Schiff base complexes exhibit binding selectivity for a tetramolecular DNA quadruplex.
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Synthesis of phosphinoferrocene amides and thioamides from carbamoyl chlorides and the structural chemistry of Group 11 metal complexes with these mixed-donor ligands

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3092-3108
DOI: 10.1039/C4DT03279A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Tiago A. Fernandes, Hana Solarova, Ivana Cisarova, Filip Uhlik, Martin Sticha, Petr Stepnicka
Phosphinoferrocene carboxamides and thioamides coordinate "ligand-free" Cu(I) and Ag(I) ions in chelating manner to form hemilabile cationic bis-chelate or a unique ligand-bridged dimer.
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Layered exfoliable crystalline materials based on Sm-, Eu- and Eu/Gd-2-phenylsuccinate frameworks. Crystal structure, topology and luminescence properties

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3417-3429
DOI: 10.1039/C4DT02844A, PaperG. E. Gomez, M. C. Bernini, E. V. Brusau, G. E. Narda, D. Vega, A. M. Kaczmarek, R. Van Deun, M. Nazzarro
New layered 2D MOFs based on 2-phenylsuccinate, Sm, Eu and Eu/Gd are a suitable platform for obtaining exfoliatable frameworks with luminescence properties for potential applications as thin films.
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Second-sphere coordination-induced morphology transformation from phosphorescent nanowires to microcubes

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,2970-2972
DOI: 10.1039/C4DT00640B, CommunicationFengfeng Xue, Yunsheng Ma, Zhiguo Zhou, Lijie Qin, Yang Lu, Hong Yang, Shiping Yang
Nanowires of a pyridyl-functionalized iridium complex are transformed into microcubes as a result of hydrogen-bond-assisted second-sphere coordination between pyridyl groups and monovalent anions of 1,3,5-benzenetricarboxylic acid (H2BTC-).
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Structural, transport and optical properties of (La0.6Pr0.4)0.65Ca0.35MnO3 nanocrystals: a wide band-gap magnetic semiconductor

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3109-3117
DOI: 10.1039/C4DT03452J, PaperSatyam Kumar, G. D. Dwivedi, Shiv Kumar, R. B. Mathur, U. Saxena, A. K. Ghosh, Amish G. Joshi, H. D. Yang, Sandip Chatterjee
Resistivity vs. temperature and valence band spectra of (La0.6Pr0.4)0.65Ca0.35MnO3 nanoparticles have been shown in figures. This figure clearly shows the hybridization of Mn3d(t2g) and O2p states.
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Spin-glass behavior of a hierarchically-organized, hybrid microporous material, based on an extended framework of octanuclear iron-oxo units

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3399-3409
DOI: 10.1039/C4DT02606C, PaperXin-Yi Cao, Jeremiah W. Hubbard, Jennifer Guerrero-Medina, Arturo J. Hernandez-Maldonado, Logesh Mathivathanan, Carlos Rinaldi, Yiannis Sanakis, Raphael G. Raptis
An amorphous microporous solid, hierarchically built using paramagnetic octanuclear iron-oxide clusters, becomes a spin-glass below [similar]30 K.
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Strategy to enhance solid-state fluorescence and aggregation-induced emission enhancement effect in pyrimidine boron complexes

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3326-3341
DOI: 10.1039/C4DT03318C, PaperYasuhiro Kubota, Kouhei Kasatani, Hiroki Takai, Kazumasa Funabiki, Masaki Matsui
Although non-, trifluoromethyl-, and cyano-substituted derivatives showed AIEE effects, methoxy- and dimethylamino-substituted analogues resulted in relatively strong fluorescence in solution.
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Single ion magnet behaviour in a two-dimensional network of dicyanamide-bridged cobalt(II) ions

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,2989-2992
DOI: 10.1039/C4DT03574G, CommunicationJoanna Palion-Gazda, Tomasz Klemens, Barbara Machura, Julia Vallejo, Francesc Lloret, Miguel Julve
The 2D coordination polymer of dca-bridged cobalt(II), [Co(dca)2(atz)2]n, exhibits slow relaxation of the magnetization at low temperatures being thus a new example of single-ion magnet (SIM).
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Structural and magnetic properties of oxyquinolinate clusters of cobalt(II) and manganese(II) and serendipitous intake of carbonate during synthesis

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,2964-2969
DOI: 10.1039/C4DT02999B, CommunicationPrithiviraj Khakhlary, Christopher E. Anson, Abhishake Mondal, Annie K. Powell, Jubaraj B. Baruah
During transformation of a Co4 oxiquinolinate cluster to a Co10 cluster, serendipitous intake of a carbonate ion was observed.
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[LnIII-MnII-LnIII] heterometallic compounds: rare linear SMMs with divalent manganese ions

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3430-3438
DOI: 10.1039/C4DT03713H, PaperXiao-Lei Li, Fan-Yong Min, Chao Wang, Shuang-Yan Lin, Zhiliang Liu, Jinkui Tang
The perfectly linear metal array and the introduction of strong magnetic anisotropy TbIII and DyIII result in new trinuclear heterometallic LnIII-MnII-LnIII SMMs with high energy barriers.
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Microwave-assisted synthesis of the anticancer drug cisplatin, cis-[Pt(NH3)2Cl2]

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3384-3392
DOI: 10.1039/C4DT03617D, PaperEmanuele Petruzzella, Cristian V. Chirosca, Cameron S. Heidenga, James D. Hoeschele
A rapid one-step microwave-assisted synthesis of cisplatin and two purification methods were developed. The process requires about 80 min and could be used to incorporate short-lived Pt radionuclides into cisplatin.
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Modulation of electronic and redox properties in phenolate-rich cobalt(III) complexes and their implications for catalytic proton reduction

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3454-3466
DOI: 10.1039/C4DT03337J, PaperDebashis Basu, Marco M. Allard, Fernando R. Xavier, Mary Jane Heeg, H. Bernhard Schlegel, Claudio N. Verani
The redox, spectroscopic and catalytic activity of a series of cobalt complexes with phenolate-rich environments was investigated. The complex [CoIII(LCl)MeOH] shows considerable proton reduction in MeCN:HOAc with TON = 10.8.
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Single-molecule magnet behavior in three cyano-bridged heterometallic FeIII-NiII clusters

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3393-3398
DOI: 10.1039/C4DT03365E, PaperPeng-Fei Zhuang, Yan-Juan Zhang, Hui Zheng, Cheng-Qi Jiao, Liang Zhao, Jun-Li Wang, Cheng He, Chun-Ying Duan, Tao Liu
By utilizing a tricyanometallate as the building block to react with divalent nickel salts in the presence of ancillary ligands, we successfully synthesized three cyano-bridged heterometallic FeIII-NiII complexes showing different single-molecule magnet behavior.
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Mesoporous Mn-Zr composite oxides with a crystalline wall: synthesis, characterization and application

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,2997-3001
DOI: 10.1039/C4DT03835E, CommunicationZhichao Miao, Huahua Zhao, Jian Yang, Jun Zhao, Huanling Song, Lingjun Chou
Mesoporous Mn-Zr composite oxides with a crystalline wall and different manganese contents were designed and achieved by a facile EISA strategy.
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A highly sensitive and recyclable SERS substrate based on Ag-nanoparticle-decorated ZnO nanoflowers in ordered arrays

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3447-3453
DOI: 10.1039/C4DT03596H, PaperQiang Tao, Shuai Li, Chunyu Ma, Kun Liu, Qing-Yu Zhang
A periodic Ag-nanoparticle-decorated ZnO nanoflower array was fabricated as a 3D SERS substrate with ultrasensitivity, good reproducibility, recyclability, and a long service lifetime.
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"3 + 1 = 6 + 2" in Cu(II) coordination chemistry of 1H-pyrazole aza cryptands

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3378-3383
DOI: 10.1039/C4DT03650F, PaperJavier Pitarch-Jarque, Raquel Belda, Francesc Lloret, Jesus Ferrando-Soria, Pilar Navarro, Alberto Lopera, Enrique Garcia-Espana
We report the first example of a cryptand able to form 6 + 2 Cu(II)-ligand dimeric hexanuclear complexes, both in the solid state and in aqueous solution, by simply combining the metal and the ligand in a 3 : 1 molar ratio.
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Effects of the electronic structure of five-membered N-heterocyclic carbenes on insertion of silanes and boranes into the NHC C-N bond

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3318-3325
DOI: 10.1039/C4DT03566F, PaperKalon J. Iversen, David J. D. Wilson, Jason L. Dutton
The effect of varying the N-heterocyclic carbene (NHC) ligand on the ring expansion and endocyclic C-N activation of NHCs by silanes and boranes has been investigated with theoretical methods.
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Mechanisms and rates of proton transfer to coordinated carboxydithioates: studies on [Ni(S2CR){PhP(CH2CH2PPh2)2}]+ (R = Me, Et, Bun or Ph)

9 February, 2015 - 01:54

Dalton Trans., 2015, 44,3307-3317
DOI: 10.1039/C4DT03543G, PaperAhmed Alwaaly, William Clegg, Richard A. Henderson, Michael R. Probert, Paul G. Waddell
Kinetics of protonation of [Ni(S2CR)(PhP{CH2CH2PPh2}2)]+ (R = Me, Et, Bun or Ph) with HCl reveals hydrogen-bonded precursor and subsequent chelate opening.
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