Dalton Transactions Blog

A fluorescence ‘turn-on’ chemodosimeter for selective detection of Nb⁵⁺ ions in mixed aqueous media
Abhishek Kumar Gupta, Abhimanew Dhir and Chullikkattil P. Pradeep

Dalton Trans., 2013, DOI: 10.1039/C3DT50914A

Free to access until 23rd July

Identification of non-classical C–H^***M interactions in early and late transition metal complexes containing the CH(ArO)₃ ligand
Matthias Lein, John A. Harrison and Alastair J. Nielson

Dalton Trans., 2013, DOI: 10.1039/C3DT51028J

Free to access until 23rd July

A researcher in Spain has analysed over five million intermolecular distances to propose a consistent set of van der Waals radii for the most naturally occurring elements.

Santiago Alvarez at the University of Barcelona was about to set his students an assignment analysing intermolecular distances involving lanthanides when he came across a problem. ‘I realised that such an exercise would not work because the Cambridge Structural Database arbitrarily assigned van der Waals radii of 2.0 Å to all elements not included in the short list established by [Arnold] Bondi. It seemed to me that a larger set of consistent Van der Waals radii was needed.’

To read the full story, please visit Chemistry World.

A cartography of the van der Waals territories  
Santiago Alvarez, Dalton Trans., 2013, Advance Article, DOI: 10.1039/C3DT50599E

Monitoring helical twists and effective molarities in dinuclear triple-stranded lanthanide helicates
Patrick E. Ryan, Laure Guénée and Claude Piguet

Dalton Trans., 2013,DOI: 10.1039/C3DT50941A, Paper

Free to access until 25th June

A novel V^IVO–pyrimidinone complex: synthesis, solution speciation and human serum protein binding
Gisela Gonçalves, Isabel Tomaz, Isabel Correia, Luís F. Veiros, M. Margarida C. A. Castro, Fernando Avecilla, Lorena Palacio, Miguel Maestro, Tamás Kiss, Tamás Jakusch, M. Helena V. Garcia and João Costa Pessoa

Dalton Trans., 2013, DOI: 10.1039/C3DT50553G, Paper

Free to access until 17th June

Structural transitions at the nanoscale: the example of palladium phosphides synthesized from white phosphorus
S. Carenco, Y. Hu, I. Florea, O. Ersen, C. Boissière, C. Sanchez and N. Mézailles

Dalton Trans., 2013, DOI: 10.1039/C3DT50686J, Paper

Free to access until 17th June

Synthesis of metal selenide colloidal nanocrystals by the hot injection of selenium powder
Stijn Flamee, Ruben Dierick, Marco Cirillo, Dirk Van Genechten, Tangi Aubert and Zeger Hens

Dalton Trans., 2013,DOI: 10.1039/C3DT50757B, Paper

Free to access until 10th June

Metal ion selectivity of the vanadium(V)-reductase Vanabin2
Hiroki Kitayama, Sohei Yamamoto, Hitoshi Michibata and Tatsuya Ueki

Dalton Trans., 2013, DOI: 10.1039/C3DT50404B

Free to access until 10th June

Aron J. Huckaba, Bei Cao, T. Keith Hollis, Henry U. Valle, John T. Kelly, Nathan I. Hammer, Allen G. Oliver and Charles Edwin Webster

Influence of a thioether function in short-bite diphosphine ligands on the nature of their silver complexes: structure of a trinuclear complex and of a coordination polymer
Vitor Rosa, Christophe Fliedel, Alessio Ghisolfi, Roberto Pattacini, Teresa Avilés and Pierre Braunstein

Dalton Trans., 2013, DOI: 10.1039/C3DT50555C

Free to access until 24th May

Organometallic ionic liquids from alkyloctamethylferrocenium cations: thermal properties, crystal structures, and magnetic properties
Yusuke Funasako, Takashi Inagaki, Tomoyuki Mochida, Toshihiro Sakurai, Hitoshi Ohta, Ko Furukawa and Toshikazu Nakamura

Dalton Trans., 2013, DOI: 10.1039/C3DT00084B

Free to access until 24th May

Europium doped In(Zn)P/ZnS colloidal quantum dots
Ung Thi Dieu Thuy, Axel Maurice, Nguyen Quang Liem and Peter Reiss

Dalton Trans., 2013, DOI: 10.1039/C3DT50526J

Free to access until 24th May

A naphthalene–thiophene hybrid molecule as a fluorescent AND logic gate with Zn²⁺ and OAc⁻ ions as inputs: cell imaging and computational studies
Debasis Karak, Sudipta Das, Sisir Lohar, Arnab Banerjee, Animesh Sahana, Ipsit Hauli, Subhra Kanti Mukhopadhyay, Damir A. Safin, Maria G. Babashkina, Michael Bolte, Yann Garcia and Debasis Das 

Dalton Trans., 2013, DOI: 10.1039/C3DT50450F 

Free to access until 13th May 

Frustration relieved ferrimagnetism in novel A- and B-site-ordered quadruple perovskite
Wei-tin Chen, Masaichiro Mizumaki, Takashi Saito and Yuichi Shimakawa 

Dalton Trans., 2013, DOI: 10.1039/C3DT50489A 

Free to access until 13th May 

Chiral and achiral (imino)phenoxy-based cationic group 4 non-metallocene complexes as catalysts for polymerization of renewable α-methylene-γ-butyrolactones
Ravikumar R. Gowda and Eugene Y.-X. Chen  

Dalton Trans., 2013, DOI: 10.1039/C3DT50430A  

Free to access until 30th April  

Enhancing selective CO₂ adsorption via chemical reduction of a redox-active metal–organic framework
Chanel F. Leong, Thomas B. Faust, Peter Turner, Pavel M. Usov,Cameron J. Kepert, Ravichandar Babarao, Aaron W. Thorntonb and Deanna M. D’Alessandro

Dalton Trans., 2013, DOI: 10.1039/C3DT00083D

Free to access until 22nd April

Formation of zeolite-like zinc 1,3,5-benzenetriphosphonate open-frameworks by topotactic pillaring of anionic layers
Kazuyuki Maeda, Ryohei Takamatsu, Miki Mochizuki, Kanako Kawawa and Atsushi Kondo

Dalton Trans., 2013, DOI: 10.1039/C3DT33037K

Free to access until 22nd April

A highly sensitive luminescent lectin sensor based on an α-D-mannose substituted Tb³⁺ antenna complex
Emma Martín Rodríguez, Nicoleta Bogdan, John A. Capobianco, Simonetta Orlandi, Marco Cavazzini, Chiara Scalera and Silvio Quici

Dalton Trans., 2013, DOI: 10.1039/C3DT33023K

Free to access until 22nd April

Crystallographic and solution NMR structural analyses of four hexacoordinated gallium(III) complexes based on ligands derived from 6-amino-perhydro-1,4-diazepine
David Parker, Bradley P. Waldron and Dmitry S. Yufit  

Dalton Trans., 2013, DOI: 10.1039/C3DT50287B    

Free until 22nd April     

Merging catalysis and supramolecular aggregation features of triptycene based Zn(salphen)s
Daniele Anselmo, Giovanni Salassa, Eduardo C. Escudero-Adán, Eddy Martin and Arjan W. Kleij   

Dalton Trans., 2013, DOI: 10.1039/C3DT00067B  

 Free until 22nd April     

Argentivorous molecules with two kinds of aromatic side-arms: intramolecular competition between side-arms
Yoichi Habata, Yosuke Oyama, Mari Ikeda and Shunsuke Kuwahara      

Dalton Trans., 2013, DOI: 10.1039/C3DT00034F     

Free until 22nd April   

Comparative study of structures, thermal stabilities and dielectric properties for a ferroelectric MOF [Sr(μ-BDC)(DMF)]_∞ with its solvent-free framework
Ping-Chun Guo, Zhenyu Chu, Xiao-Ming Ren, Wei-Hua Ning and Wanqin Jin    

 Dalton Trans., 2013, DOI: 10.1039/C3DT32880E   

 Free to access until 20th April   

A well-defined model system for the chromium-catalyzed selective oligomerization of ethylene
Wesley H. Monillas, John F. Young, Glenn P. A. Yap and Klaus H. Theopold    

Dalton Trans., 2013, DOI: 10.1039/C3DT00109A      

 Free to access until 20th April

Read more HOT articles here

Solvent-modified dynamic porosity in chiral 3D kagome frameworks
Tony D. Keene, Damien Rankine, Jack D. Evans, Peter D. Southon, Cameron J. Kepert, Jade B. Aitken, Christopher J. Sumby and Christian J. Doonan

Photoinduced charge transfer involving a MoMo quadruply bonded complex to a perylene diimide
Brian G. Alberding, Samantha E. Brown-Xu, Malcolm H. Chisholm, Arthur J. Epstein, Terry L. Gustafson, Sharlene A. Lewis and Yong Min

Spectral signature of a Ru(II, III, IV) complex: a combined experimental and theoretical investigation
Jacques Bonvoisin and Ilaria Ciofini

Electronic structure and soft-X-ray-induced photoreduction studies of iron-based magnetic polyoxometalates of type {(M)M₅}₁₂Fe^III₃₀ (M = Mo^VI, W^VI)
Karsten Kuepper, Christine Derks, Christian Taubitz, Manuel Prinz, Loïc Joly, Jean-Paul Kappler, Andrei Postnikov, Wanli Yang, Tatyana V. Kuznetsova, Ulf Wiedwald, Paul Ziemann and Manfred Neumann

Palladium complexes with stabilized germylene and stannylene ligands
Marina M. Kireenko, Kirill V. Zaitsev, Yuri F. Oprunenko, Andrei V. Churakov, Viktor A. Tafeenko, Sergey S. Karlov and Galina S. Zaitseva

Heterolytic activation of dihydrogen by platinum and palladium complexes
Karina Q. Almeida Leñero, Yannick Guari, Paul C. J. Kamer, Piet W. N. M. van Leeuwen, Bruno Donnadieu, Sylviane Sabo-Etienne, Bruno Chaudret, Martin Lutz and Anthony L. Spek

Highly fluorescent complexes with gold, palladium or platinum linked to perylene through a tetrafluorophenyl group
Sergio Lentijo, Gabriel Aullón, Jesús A. Miguel and Pablo Espinet

The Tolman electronic parameter (TEP) and the metal–metal electronic communication in ditopic NHC complexes
Dmitry G. Gusev and Eduardo Peris

A different route to functional polyolefins: olefin–carbene copolymerisation
Nicole M. G. Franssen, Joost N. H. Reek and Bas de Bruin

Adam Veige and colleagues from the University of Florida, USA, report the successful isolation of the neutral ONO^3- trianionic pincer-type tungsten alkylidyne complex [CF₃–ONO]WΞC(^tBu)(OEt₂).

Cyclooctyne, which is normally polymerised due to its internal ring strain, reacts rapidly with the pincer-type tungsten alkylidyne complex to give the first example of a bicyclic metallacyclobutadiene.  The pincer-type tungsten alkylidyne complex was also treated with alkyne substrates 1-phenylpropyne and 4,4-dimethyl-2-pentyne to give two more tungstenacyclobutadienes. The three tungstenacyclobutadienes made in this study all exhibit incredible stability.

Download the paper today to read how the team have explored the factors contributing to this stability.

Unusually stable tungstenacyclobutadienes featuring an ONO trianionic pincer-type ligand
Matthew E. O’Reilly, Ion Ghiviriga, Khalil A. Abboud and Adam S. Veige
Dalton Trans., 2013
DOI: 10.1039/C2DT32653A

You might also be interested in this Dalton Transactions article by the same authors:

The influence of reversible trianionic pincer OCO³⁻μ-oxo Cr^IV dimer formation ([Cr^IV]₂(μ-O)) and donor ligands in oxygen-atom-transfer (OAT)
Matthew E. O’Reilly, Trevor J. Del Castillo, Khalil A. Abboud and Adam S. Veige
Dalton Trans., 2012,41, 2237-2246
DOI: 10.1039/C1DT11104C, Paper

Scientists in Italy and Brazil report a new synthesis for making heteronuclear propeller-like single molecule magnets (SMMs) that could be used to design structures with a variety of d- and f-block metals and R groups, yielding 100% pure complexes without metal scrambling. 

There is considerable interest in manipulating SMMs to have higher ground spin states, enhanced magnetic properties and increased robustness for possible future applications in quantum computing.  In this study, Roberta Sessoli and colleagues use a central chromium(III) ion in their synthesis of Fe₃Cr propeller-like aggregates to show that molecular ground spin state can be altered by selectively changing the spin state of the metal ion.

The chemically inert chromium(III) produces a kinetically stable central “core” which then combines with the dimeric iron(III) starting material to give propeller-like complexes

The synthetic method could potentially be tailored to produce propeller-like SMMs with particular properties.

Read more about the synthesis for free at…

A new approach to the synthesis of heteronuclear propeller-like single molecule magnets
Pasquale Totaro,  Kátia Cristina M. Westrup,  Marie-Emmanuelle Boulon,  Giovana G. Nunes,  Davi F. Back,  Andersson Barison,  Samuele Ciattini,  Matteo Mannini,  Lorenzo Sorace,  Jaísa F. Soares,  Andrea Cornia and Roberta Sessoli
Dalton Trans., 2013
DOI: 10.1039/C2DT32618C

Here are some other Dalton Transactions articles by the same authors:

Lanthanides in molecular magnetism: so fascinating, so challenging
Javier Luzon and Roberta Sessoli
Dalton Trans., 2012, 41, 13556-13567
DOI: 10.1039/C2DT31388J, Perspective
From themed issue Frontier and Perspectives in Molecule-Based Quantum Magnet

Magnetic and optical bistability in tetrairon(III) single molecule magnets functionalized with azobenzene groups
Thazhe Kootteri Prasad, Giordano Poneti, Lorenzo Sorace, Maria Jesus Rodriguez-Douton, Anne-Laure Barra, Petr Neugebauer, Luca Costantino, Roberta Sessoli and Andrea Cornia
Dalton Trans., 2012, 41, 8368-8378
DOI: 10.1039/C2DT30172E, Paper

Dimers and chains of {3d–4f} single molecule magnets constructed from heterobimetallic tectons
Traian D. Pasatoiu, Mael Etienne, Augustin M. Madalan, Marius Andruh and Roberta Sessoli
Dalton Trans., 2010, 39, 4802-4808
DOI: 10.1039/B925425K, Paper
From themed issue Molecular magnets

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A team of researchers from France, Spain and Russia have put forward a case to explain a counter-intuitive conformation of manganese alkylalkoxycarbene complexes.

Using molecular orbitals, it is predicted that such complexes adopt a vertical coordination mode. This is largely the case – although one exception reported by Landman et al. earlier this year (see here) prompted the team to investigate what really is going on…

Coordination modes of carbene ligands in piano-stool complexes

Using a combination of DFT calculations and XRD analysis, Lugan et al. confirm that non-covalent interligand interactions between the alkyl substituents on the carbene and the carbon monoxide ligand (C-H^…C≡O) are responsible for these complexes adopting the unexpected horizontal coordination mode. Although such an interaction is weak, it goes to show that its enough to influence geometry.

Download the article now…

On the incidence of non-covalent intramolecular interligand interactions on the conformation of carbene complexes: a case study
Noël Lugan, Israel Fernández, Rémy Brousses, Dmitry A. Valyaev, Guy Lavigne and Nikolai A. Ustynyuk
Dalton Trans., 2013, Advance Article