Dalton Transactions

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Enforcement of a high-spin ground state for the first 3d heterometallic 12-metallacrown-4 complex

12 October, 2014 - 17:54

Dalton Trans., 2014, 43,15308-15312
DOI: 10.1039/C4DT02275K, CommunicationPeter Happ, Eva Rentschler
Applying a novel magnetic director approach, we have realized Cu(II)(DMF)2Cl2[12-MCFe(III)N(Shi)-4](DMF)4[middle dot]2DMF as the first heterometallic transition metal 12-MC-4 complex in order to provide this type of compound with a high-spin ground state.
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Contrasting ion-association behaviour of Ta and Nb polyoxometalates

12 October, 2014 - 17:54

Dalton Trans., 2014, 43,15295-15299
DOI: 10.1039/C4DT02394C, CommunicationLauren B. Fullmer, Pedro I. Molina, Mark R. Antonio, May Nyman
Small-angle X-ray scattering (SAXS) studies of aqueous [Ta6O19]8- compared to prior studies of aqueous [Nb6O19]8- reveals key differences in behaviour, which is likely at the root of the difficulty in developing polyoxotantalate chemistry.
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Half sandwich ruthenium(II) hydrides: hydrogenation of terminal, internal, cyclic and functionalized olefins

12 October, 2014 - 17:54

Dalton Trans., 2014, 43,15638-15645
DOI: 10.1039/C4DT02407A, PaperBidraha Bagh, Douglas W. Stephan
Ruthenium(II) complexes 2b-e with the general formula RuCl2(p-cymene)(NHC) were reacted with Et3SiH to generate a series of ruthenium(II) hydrides 5b-e. These compounds 5b-e are effective catalysts for the hydrogenation of terminal, internal and cyclic and functionalized olefins.
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Protonolysis and thermolysis reactions of functionalised NHC-carbene boranes and borates

12 October, 2014 - 17:54

Dalton Trans., 2014, 43,15419-15428
DOI: 10.1039/C4DT01464B, PaperPolly L. Arnold, Nicola L. Bell, Isobel H. Marr, Siyi She, Jonathan Hamilton, Craig Fraser, Kai Wang
[small beta]-ketoimidazol(in)ium salts show contrasting reactivity with MHBEt3 due to subtle electronic and steric differences. Thermolysis of the chiral [small beta]-borate imidazolium salts formed from these reactions results in alkane elimination in the first example of organic borates functioning as Bronsted bases.
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Formation of bis(2-pyridylcarbonyl)aminate by oxidation of ethylbis(2-pyridylmethyl)amine on the trichloridoruthenium(III) complex

12 October, 2014 - 17:54

Dalton Trans., 2014, 43,15391-15397
DOI: 10.1039/C4DT01842G, PaperHirotaka Nagao, Naoto Shimura, Haruka Yonezawa
Oxidation of the facial-type trichloridoruthenium(III) complex bearing ethylbis(2-pyridylmethyl)amine (ebpma), fac-[RuIIICl3(ebpma)], with (NH4)2[CeIV(NO3)6] in acetonitrile afforded a ruthenium(III) complex having bis(2-pyridylcarbonyl)aminato (bpca), [RuIIICl2(NCCH3)(bpca)]. The bpca moiety showed interactions with cations such as protons.
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Fusion of photodynamic therapy and photoactivated chemotherapy: a novel Ru(II) arene complex with dual activities of photobinding and photocleavage toward DNA

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15375-15384
DOI: 10.1039/C4DT01755B, PaperYongjie Chen, Wanhua Lei, Guoyu Jiang, Yuanjun Hou, Chao Li, Baowen Zhang, Qianxiong Zhou, Xuesong Wang
A Ru(II) arene complex displays DNA binding, DNA cleavage, and fluorescence imaging upon visible light illumination.
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Anionic N-heterocyclic carbenes (NHCs): a versatile route to saturated NHCs bearing pendant weakly coordinating anions

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15279-15282
DOI: 10.1039/C4DT02662D, CommunicationNicholas Phillips, Remi Tirfoin, Simon Aldridge
A versatile methodology is reported for the synthesis of anionic NHCs featuring a 5-, 6-, or 7-membered saturated heterocyclic core.
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Thin-coated water soluble CdTeS alloyed quantum dots as energy donors for highly efficient FRET

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15583-15592
DOI: 10.1039/C4DT01502A, PaperAkram Yahia-Ammar, Aline M. Nonat, Anne Boos, Jean-Luc Rehspringer, Zouhair Asfari, Loic J. Charbonniere
A model for the determination of the chemical composition and the size of CdTeS QDs is proposed and confirmed by FRET experiments.
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Synthesis and analysis of the anticancer activity of platinum(II) complexes incorporating dipyridoquinoxaline variants

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15566-15575
DOI: 10.1039/C4DT02133A, PaperBenjamin J. Pages, Feng Li, Paul Wormell, Dale L. Ang, Jack K. Clegg, Cameron J. Kepert, Lawson K. Spare, Supawich Danchaiwijit, Janice R. Aldrich-Wright
Platinum complexes incorporating variants of dpq were synthesised. Their DNA affinity and cytotoxicity were compared to complexes containing phen variants, revealing unexpected trends in biological activity.
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Fulvic acid complexation of Eu(III) and Cm(III) at elevated temperatures studied by time-resolved laser fluorescence spectroscopy

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15593-15601
DOI: 10.1039/C4DT02339K, PaperDaniel R. Frohlich, Andrej Skerencak-Frech, Michael Gast, Petra J. Panak
The interaction of Eu(III) and Cm(III) with three different aquatic fulvic acids (FA) was studied as a function of the temperature (T = 20-80 [degree]C) in 0.1 M NaCl solution by time-resolved laser fluorescence spectroscopy.
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Aspects of the coordination chemistry of rac-trans-1,2-diphosphinocyclohexane and the preparation of reinforced 9aneP3 and 9anePN2 macrocycles

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15532-15545
DOI: 10.1039/C4DT02239D, PaperPeter G. Edwards, Benson M. Kariuki, Paul D. Newman, Huw A. Tallis, Craig Williams
Rac,trans-1,2-diphosphinocyclohexane (t-chxnP2) has been prepared and coordinated to Cu(I), Ag(I), Fe(II) and Mn(I) and the latter two metals used as templates for the formation of structurally reinforced 9aneP3 and 9anePN2 macrocycles.
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An ultrasound-assisted approach to synthesize Mn3O4/RGO hybrids with high capability for lithium ion batteries

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15317-15320
DOI: 10.1039/C4DT01695E, CommunicationYunqing Luo, Shanshan Fan, Nongyi Hao, Shuangling Zhong, Wencong Liu
We demonstrate a fast and facile ultrasound-assisted synthesis of layered Mn3O4 nanosheets supported on reduced graphene oxide, and the as-obtained hybrids exhibited a superior capability for lithium ion storage.
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Manganese(I) templates for the construction of benzannulated triphosphamacrocycles

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15646-15655
DOI: 10.1039/C4DT02203C, PaperPeter G. Edwards, Mary F. Mahon, Paul D. Newman, Elisenda Reixach, Wenjian Zhang
Benzannulated 9aneP3 macrocycles have been prepared by two different routes using a single [Mn(CO)3]+ template.
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Multicycle water vapour stability of microporous breathing MOF aluminium isophthalate CAU-10-H

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15300-15304
DOI: 10.1039/C4DT02264E, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Dominik Frohlich, Stefan Kai Henninger, Christoph Janiak
A long-time water vapour stability over 700 sorption cycles is proven for the first time for a breathing MOF, here CAU-10-H.
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Utilization of a ligand containing 2,2[prime or minute]-bipyridyl and tetrazolate groups to construct a 2D Co(II) coordination polymer: spin canting and metamagnetism

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15576-15582
DOI: 10.1039/C4DT01793E, PaperJia-Dong Tsai, Chen-I. Yang
A Co(II) coordination polymer based on a ligand containing 2,2[prime or minute]-bipyridyl and tetrazolate groups was prepared from an in situ reaction under hydrothermal conditions exhibiting spin canting and metamagnetism.
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Behavior of anionic molybdenum(IV, VI) and tungsten(IV, VI) complexes containing bulky hydrophobic dithiolate ligands and intramolecular NHS hydrogen bonds in nonpolar solvents

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15491-15502
DOI: 10.1039/C4DT01646G, PaperYuki Hasenaka, Taka-aki Okamura, Miki Tatsumi, Naoya Inazumi, Kiyotaka Onitsuka
Molybdenum(IV, VI) and tungsten(IV, VI) complexes having bulky hydrophobic substituents allowed the detection of intermolecular interactions and accelerated the oxygen-atom-transfer reaction in toluene.
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p-tert-Butylcalix[6]arene hexacarboxylic acid as host for Pb(II), Sr(II) and Ba(II)

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15560-15565
DOI: 10.1039/C4DT02182G, PaperBirendra Babu Adhikari, Xiang Zhao, Shahab Derakhshan, Michael P. Schramm
p-tert-Butylcalixarene hexacarboxylic acid initially binds with low symmetry, to later adopt a highly symmetric up-down alternating conformation in the presence of Pb, Sr or Ba.
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Magnetic mesoporous silica nanoparticles for potential delivery of chemotherapeutic drugs and hyperthermia

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15482-15490
DOI: 10.1039/C4DT01984A, PaperCuilian Tao, Yufang Zhu
Magnetic mesoporous silica (MMS) nanoparticles could provide a promising multifunctional platform for the combination of chemotherapy and hyperthermia.
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Metal-organic frameworks based on the [1,1[prime or minute]:3[prime or minute],1[prime or minute][prime or minute]-terphenyl]-3,3[prime or minute][prime or minute],5,5[prime or minute][prime or minute]-tetracarboxylic acid ligand: syntheses, structures an

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15475-15481
DOI: 10.1039/C4DT02342K, PaperXiaofeng Lv, Lu Liu, Chao Huang, Li'an Guo, Jie Wu, Hongwei Hou, Yaoting Fan
Five coordination polymers containing transition metals (Mn, Co, Ni) and the organic ligand [1,1[prime or minute]:3[prime or minute],1[prime or minute][prime or minute]-terphenyl]-3,3[prime or minute][prime or minute],5,5[prime or minute][prime or minute]-tetracarboxylic acid (H4TPTA) were synthesized and characterized. Moreover, the magnetism of complexes 3-5 is also discussed.
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Non-covalent interactions in coinage metal complexes of 1,2,4-triazole-based N-heterocyclic carbenes

8 October, 2014 - 16:54

Dalton Trans., 2014, 43,15465-15474
DOI: 10.1039/C4DT01994F, PaperJan Turek, Illia Panov, Petr Svec, Zdenka Ruzickova, Ales Ruzicka
Non-covalent interactions were revealed in the complete series of coinage metal complexes of the type (NHC)MX (M = Cu, Ag, Au; X = Cl, Br, I) bearing 1,2,4-triazole based NHCs.
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