Dalton Transactions

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Ruthenium and osmium complexes of dihydroperimidine-based N-heterocyclic carbene pincer ligands

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20376-20385
DOI: 10.1039/C5DT03728J, PaperCaitlin M. A. McQueen, Anthony F. Hill, Chenxi Ma, Jas S. Ward
Double geminal aminal C-H activation processes of the dihydroperimidine based NHC pincer pro-ligands H2C(NCH2PR2)2C10H6 are described leading to dihydroperimidinylidene complexes including the first osmium examples.
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Design and synthesis of purely inorganic 3D frameworks composed of reduced vanadium clusters and manganese linkers

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20435-20440
DOI: 10.1039/C5DT03397G, PaperYang-Yang Zhou, Shuang Yao, Jing-Hui Yan, Li Chen, Ting-Ting Wang, Chun-Jie Wang, Zhi-Ming Zhang
Two 3D purely inorganic frameworks [Mn2(H2O)7VIV18O42(PO4)]11- (1) and [Mn4(H2O)11VIV18O42(PO4)]7- (2), based on the all reduced polyoxovanadates, are designed and synthesized for the first time.
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Sequential structural transitions with distinct dielectric responses in a layered perovskite organic-inorganic hybrid material: [C4H9N]2[PbBr4]

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20406-20412
DOI: 10.1039/C5DT03277F, PaperZhong-Xia Wang, Wei-Qiang Liao, Heng-Yun Ye, Yi Zhang
A novel organic-inorganic hybrid layered compound undergoes two phase transitions at 315 and 250 K, accompanied by distinct dielectric responses.
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New honeycomb iridium(V) oxides: NaIrO3 and Sr3CaIr2O9

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20344-20351
DOI: 10.1039/C5DT03188E, PaperDavid C. Wallace, Tyrel M. McQueen
Two new honeycomb Ir5+ iridates are the first examples of a J = 0 state on a honeycomb lattice.
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High pressure synthesis of polar and non-polar cation-ordered polymorphs of Mn2ScSbO6

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20441-20448
DOI: 10.1039/C5DT03445K, PaperE. Solana-Madruga, A. J. Dos santos-Garcia, A. M. Arevalo-Lopez, D. Avila-Brande, C. Ritter, J. P. Attfield, R. Saez-Puche
Two new Mn2ScSbO6 polymorphs are presented: an antiferromagnetic double perovskite (DPv) and a multiferroic Ni3TeO6-type (NTO) induced by site-selective disorder.
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Magnetically separable Ag3PO4/NiFe2O4 composites with enhanced photocatalytic activity

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20426-20434
DOI: 10.1039/C5DT03173G, PaperSantosh S. Patil, Mohaseen S. Tamboli, Virendrakumar G. Deonikar, Govind G. Umarji, Jalindar D. Ambekar, Milind V. Kulkarni, Sanjay S. Kolekar, Bharat B. Kale, Deepak R. Patil
A step wise growth process of APO nuclei leads to developing interesting morphologies of APO/NFO composites.
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Formation constants of copper(I) complexes with cysteine, penicillamine and glutathione: implications for copper speciation in the human eye

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20413-20425
DOI: 10.1039/C5DT02129D, PaperLan-Chi Konigsberger, Erich Konigsberger, Glenn Hefter, Peter M. May
Speciation modelling incorporating redox equilibria provides a plausible explanation for copper deposition in the human eye associated with Wilson's disease.
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Catalytic functionalization of low reactive C(sp3)-H and C(sp2)-H bonds of alkanes and arenes by carbene transfer from diazo compounds

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20295-20307
DOI: 10.1039/C5DT03450G, PerspectiveAna Caballero, M. Mar Diaz-Requejo, Manuel R. Fructos, Andrea Olmos, Juan Urbano, Pedro J. Perez
The direct functionalization of low reactive C(sp3)-H and C(sp2)-H bonds of alkanes and arenes, respectively, by metal-induced carbene transfer from diazo compounds is reviewed.
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Mechanistic features of the copper-free Sonogashira reaction from ESI-MS

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20367-20375
DOI: 10.1039/C5DT02889B, PaperZohrab Ahmadi, Lars P. E. Yunker, Allen G. Oliver, J. Scott McIndoe
Continuous mass spectrometric monitoring of the copper-free Sonogashira reaction reveals acceleration by stronger bases and deuterated methanol solvent.
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Zirconium complexes stabilized by amine-bridged bis(phenolato) ligands as precatalysts for intermolecular hydroamination reactions

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20352-20360
DOI: 10.1039/C5DT02643A, PaperQiu Sun, Yaorong Wang, Dan Yuan, Yingming Yao, Qi Shen
Pentacoordinate zirconium complexes 5 and 7 stabilized by amine-bridged bis(phenolato) ligands are more active than hexacoordinate complexes 1-4 in catalyzing intermolecular hydroamination reactions.
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Synthesis and controlled growth of osmium nanoparticles by electron irradiation

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20308-20311
DOI: 10.1039/C5DT03205A, CommunicationAnais Pitto-Barry, Luis M. A. Perdigao, Marc Walker, James Lawrence, Giovanni Costantini, Peter J. Sadler, Nicolas P. E. Barry
Defined-size osmium nanoparticles (1.5-50 nm) were synthesized on a B- and S-doped turbostratic graphitic structure from an organometallic osmium complex encapsulated in self-spreading polymer micelles and characterised by (HR)TEM, AFM and XPS.
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Constructing novel Cd(II) metal-organic frameworks based on different highly connected secondary building units via alteration of reaction conditions

24 November, 2015 - 23:17

Dalton Trans., 2015, 44,20361-20366
DOI: 10.1039/C5DT02987B, PaperYan-Qing Liu, Guo-Jian Ren, Ying-Hui Zhang, Jian Xu, Xian-He Bu
Upon the reaction of Cd(II) ions and 4-Ptz ligands under different conditions, three new Cd(II) metal-organic frameworks were constructed based on different highly connected secondary building units.
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Vibrational circular dichroism and chiroptical properties of chiral Ir(III) luminescent complexes

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT03642A, PaperGiuseppe Mazzeo, Marco Fuse, Giovanna Longhi, Isabella Rimoldi, Edoardo Cesarotti, Alessandra Crispini, Sergio Abbate
The octahedral ionic Ir(III) complex with a dual stereogenic centre of general formula [capital Delta],[capital Lambda]-(R,S)-[(ppy)2Ir(Me-campy)]X, where ppy=2-phenylpyridine, Me-campy=2-methyl-5,6,7,8-tetrahydroquinolin-8-amine, and the complex [capital Lambda]-(R,S)-[(ppy)2Ir(H-Campy)]X, where ppy=2-phenylpyridine, H-Campy=8-amino-5,6,7,8-tetrahydroquinolines and with X¯ = Cl¯ as...
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High-Efficiency Bulk Heterojunction Memory Devices Fabricated Using Organometallic Halide Perovskite: Poly(N-vinylcarbazole) Blend Active Layers

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT03969J, CommunicationCheng Wang, Yu Chen, Bin Zhang, Shanshan Liu, Qibin Chen, Yaming Cao, Sai Sun
A solution-processed organometallic halide perovskite -based bulk heterojunction (BHJ) memory device with a configuration of indium-doped tin oxide (ITO)/CH3NH3PbI3:PVK/Al has been successfully fabricated. Under a threshold voltage of -1.57 V,...
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Synthesis and electronic properties of Polycyclic Aromatic Hydrocarbons doped with Phosphorus and Sulfur

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT04154F, PaperMuriel - Hissler, Wylliam Delaunay, Rozsa Szucs, Simon Pascal, Annabella Mocanu, Pierre-Antoine Bouit, Laszlo Nyulaszi
In this work, we report on the synthesis of polyaromatic hydrocarbons containing phosphole and thiophene rings at the edge. The ring-closure reactions have been investigated by theoretical calculations. The optical...
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Assessing the reactivity of sodium alkyl-magnesiates towards quinoxaline: single electron transfer (SET) vs nucleophilic alkylation processes

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT04044B, PaperZoe Livingstone, Alberto Hernan-Gomez, Sharon E Baillie, David R Armstrong, Luca Carrella, Bill Clegg, Ross W Harrington, A R Kennedy, Eva Rentschler, Eva Hevia
By exploring the reactivity of sodium butyl-magnesiate [Na(THF)6]+[{Ph2Si(NAr*2)}Mg(Bu)(THF)]- (1) supported by the bulky chelating silyl(bisamido) ligand {Ph2Si(NAr*)2}2- (Ar* = 2,6-iPr2-C6H3) towards quinoxaline (Qx), the ability of this bimetallic system to...
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Hydroamination of Diphenylbutadiyne with Secondary N-Methyl-anilines Using the Dipotassium Tetrakis(2,6-diisopropylanilino)calciate Precatalyst

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT03818A, PaperMatthias Westerhausen, Fadi M Younis, Sven Krieck, Helmar Gorls
The approved precatalyst [K2Ca{N(H)Dipp}4] was employed to study the hydroamination of diphenylbutadiyne with N-methyl-anilines in tetrahydrofuran at room temperature. The hydroamination occurs regioselectively within a few hours yielding (N-methyl)-(N-aryl)-1,4-diphenylbut-1-ene-3-yne-1-ylamine with...
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Metallamacrocycle formation through dimerization of metal bioconjugates derived from amino acids and peptides

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT01256B, PaperCeledonio M. Alvarez, Raul Garcia-Rodriguez, Daniel Miguel
Metallamacrocycles of 12, 16, and 22 members are obtained by deprotonation of the carboxylic group of the side chain of iminopyridine complexes derived from the aminoacid [small beta]-alanine, and the peptides...
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Influence of riboflavin on the reduction of radionuclides by Shewanella oneidenis MR-1

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C4DT02929A, PaperAndrea Cherkouk, Gareth T.W. Law, Thanos Rizoulis, Kathleen Law, Joanna Renshaw, Katherine Morris, F R Livens, Jonathan Lloyd
Uranium (as UO22+), technetium (as TcO4-) and neptunium (as NpO2+) are highly mobile radionuclides that can be reduced enzymatically by a range of anaerobic and facultatively anaerobic microorganisms, including Shewanella...
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Photostable ester-substituted bis-cyclometalated cationic iridium(III) complexes for continuous monitoring oxygen

22 November, 2015 - 22:54
Dalton Trans., 2015, Accepted Manuscript
DOI: 10.1039/C5DT02804C, PaperChun Liu, Hongcui Yu, Yang Xing, Zhanming Gao, Zilin Jin
Three bis-cyclometalated cationic Ir(III) complexes Ir1, Ir2 and Ir3 with an ester substituent at the 4-position of the phenyl ring on the 2-phenylpyridine (ppy) have been synthesized and fully characterized....
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