Dalton Transactions Blog

Take a look at HOT articles for March. These are only free to acess for 4 weeks only and are available for viewing in a collection on our website.

An ionic liquid process for mercury removal from natural gas
Mahpuzah Abai, Martin P. Atkins, Amiruddin Hassan, John D. Holbrey, Yongcheun Kuah, Peter Nockemann, Alexander A. Oliferenko, Natalia V. Plechkova, Syamzari Rafeen, Adam A. Rahman, Rafin Ramli, Shahidah M. Shariff, Kenneth R. Seddon, Geetha Srinivasan and Yiran Zou  
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03273J

Free to access until 24^th April 2015

Relationship between crystal structure and thermo-mechanical properties of kaolinite clay: beyond standard density functional theory
Philippe F. Weck, Eunja Kim and Carlos F. Jové-Colón 
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C5DT00590F

Free to access until 23^rd April 2015

The titanium tris-anilide cation [Ti(N[^tBu]Ar)₃]⁺ stabilized as its perfluoro-tetra-phenylborate salt: structural characterization and synthesis in connection with redox activity of 4,4′-bipyridine dititanium complexes
Heather A. Spinney, Christopher R. Clough and Christopher C. Cummins
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C5DT00105F

Free to access until 14^th April 2015

Iridium–bipyridine periodic mesoporous organosilica catalyzed direct C–H borylation using a pinacolborane
Yoshifumi Maegawa and Shinji Inagaki
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C5DT00239G

Free to access until 14^th April 2015

“My original intention in the late 1940s was to spend a few years understanding the boranes, and then to discover a systematic valence description of the vast numbers of electron deficient intermetallic compounds. I have made little progress toward this latter objective,” said the late Professor William N. Lipscomb in his 1976 Nobel acceptance speech.¹

In their recent Dalton Transactions Hot Article, Jose M. Goicoechea and John E. McGrady examine the chemistry of main group cluster-encapsulated transition metal atoms, laying another piece of the foundation of Lipscomb’s “latter objective.”

The authors assign themselves an ambitious task: to provide a system to predict the geometries of cages of the tetrel elements (C, Si, Ge, Sn, Pb) which encapsulate transition metal atoms.  They focus on six high-symmetry cage structures, shown below, which have been observed for tetrel-encapsulated metal atoms (denoted M@E_x, for example Ni@Ge₁₂.).

The six three-dimensional cage geometries examined.

Lipscomb’s elegantly-described closo, nido, and arachno borane structures (“closed,”“nest”, and “spider’s web,” respectively) provided an initial basis for classifications of cages.  Later, the Wade/Mingos rules laid the foundation for predicting the geometries based on the electronic structure of the cluster.

Goicoechea and McGrady use the total valence electron count –  of the tetrel cages, plus the d-electron count of the encapsulated metal – to describe patterns in the structures.  Nevertheless, some results defy electron-count classification, for example, the preference of silicon cages to form D_6h-symmetric hexagonal prisms in M@Si₁₂ complexes, in contrast to the M@Ge₁₂ analogues.

It is a broad, big-picture paper, a synthesis of a wide range of experimental and theoretical results.  Some structures are known experimentally from x-ray crystallography, some have only been predicted computationally.  The authors discuss the varying relevance of considering the d-electron counts of the metals, and technological implications such as quenching of the magnetic moment of encapsulated metal atoms.  For me, the scope alone made this a worthwhile read.

Read the full article now:

On the structural landscape in endohedral silicon and germanium clusters, M@Si₁₂ and M@Ge₁₂
José M. Goicoechea and John E. McGrady
Dalton Trans., 2015, DOI: 10.1039/C4DT03573A

¹ Lipscomb, W.N. “The Boranes and Their Relatives” in Les Prix Nobel en 1976. Imprimerie Royal PA Norstedt & Soner, Stockholm, 1977

Ian Mallov is currently a Ph.D. student in Professor Doug Stephan’s group at the University of Toronto. His research is focused on synthesizing new Lewis-acidic compounds active in Frustrated Lewis Pair chemistry. He grew up in Truro, Nova Scotia and graduated from Dalhousie University and the University of Ottawa, and worked in chemical analysis in industry for three years before returning to grad school.

This month brings some more HOT articles. These are only free to acess for 4 weeks only and are available for viewing on our website.

Thermoelectric properties of the Zintl phases Yb₅M₂Sb₆ (M = Al, Ga, In)
Umut Aydemir, Alex Zevalkink, Alim Ormeci, Heng Wang, Saneyuki Ohno, Sabah Bux and G. Jeffrey Snyder
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03773A

Free to access until 25^th March 2015

Exploring excited states of Pt(II) diimine catecholates for photoinduced charge separation
Paul A. Scattergood, Patricia Jesus, Harry Adams, Milan Delor, Igor V. Sazanovich, Hugh D. Burrows, Carlos Serpa and Julia A. Weinstein
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03466J

Free to access until 25^th March 2015

On the structural landscape in endohedral silicon and germanium clusters, M@Si₁₂ and M@Ge₁₂
José M. Goicoechea and John E. McGrady
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03573A

Free to access until 9^th March 2015

The synthesis, structure, topology and catalytic application of a novel cubane-based copper(II) metal–organic framework derived from a flexible amido tripodal acid
Anirban Karmakar, Clive L. Oliver, Somnath Roy and Lars Öhrström
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03087G

Free to access until 9^th March 2015

A new year has brought a new crop of HOT articles for the month. As always, these are free to access for 4 weeks!

Our HOT articles have also been compiled into a collection and are available for viewing on our website.

Methylated Re(I) tetrazolato complexes: photophysical properties and Light Emitting Devices
Melissa V. Werrett, Gregory S. Huff, Sara Muzzioli, Valentina Fiorini, Stefano Zacchini, Brian W. Skelton, Antonio Maggiore, Joanna M. Malicka, Massimo Cocchi, Keith C. Gordon, Stefano Stagni and Massimiliano Massi
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03228D

Free to access until 26^th February 2015

Recent advances towards the fabrication and biomedical applications of responsive polymeric assemblies and nanoparticle hybrid superstructures
Xianglong Hu and Shiyong Liu
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03609C

Free to access until 26^th February 2015

Synthesis and characterization of substituted Schiff-base ligands and their d¹⁰ metal complexes: structure-induced luminescence tuning behaviors and applications in co-sensitized solar cells
Yu-Wei Dong, Rui-Qing Fan, Ping Wang, Li-Guo Wei, Xin-Ming Wang, Hui-Jie Zhang, Song Gao, Yu-Lin Yang and Yu-Lei Wang
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03602F

Free to access until 26^th February 2015

Spin-crossover behaviors in solvated cobalt(II) compounds
Shinya Hayami, Manabu Nakaya, Hitomi Ohmagari, Amolegbe Saliu Alao, Masaaki Nakamura, Ryo Ohtani, Ryotaro Yamaguchi, Takayoshi Kuroda-Sowa and Jack K. Clegg
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03743J

Free to access until 26^th February 2015

Enjoy a read of our end of year HOT articles which are free to access for 4 weeks only!

Our HOT articles have also been compiled into a collection and are available for viewing on our website.

A theoretical study of the aromaticity in neutral and anionic borole compounds
J. Oscar C. Jimenez-Halla, Eduard Matito, Miquel Solà, Holger Braunschweig, Christian Hörl, Ivo Krummenacher and Johannes Wahler
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03445G

Free to access until 6^th February 2015

High performing smart electrochromic device based on honeycomb nanostructured h-WO3 thin films: hydrothermal assisted synthesis
Vijay V. Kondalkar, Sawanta S. Mali, Rohini R. Kharade, Kishorkumar V. Khot, Pallavi B. Patil, Rahul M. Mane, Sipra Choudhury, Pramod S. Patil, Chang K. Hong, Jin H. Kim and Popatrao N. Bhosale
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02953D

Free to access until 6^th February 2015

Application of three-coordinate copper(I) complexes with halide ligands in organic light-emitting diodes that exhibit delayed fluorescence
Masahisa Osawa, Mikio Hoshino, Masashi Hashimoto, Isao Kawata, Satoshi Igawa and Masataka Yashima
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02853H

Free to access until 6^th January 2015

Na_0.3WO₃ nanorods: a multifunctional agent for in vivo dual-model imaging and photothermal therapy of cancer cells
Yuxin Zhang, Bo Li, Yunjiu Cao, Jinbao Qin, Zhiyou Peng, Zhiyin Xiao, Xiaojuan Huang, Rujia Zou and Junqing Hu
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02927E

Free to access until 6^th January 2015

Transmetalation from B to Rh in the course of the catalytic asymmetric 1,4-addition reaction of phenylboronic acid to enones: a computational comparison of diphosphane and diene ligands
You-Gui Li, Gang He, Hua-Li Qin and Eric Assen B. Kantchev
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03147D

Free to access until 1^st January 2015

A contribution to the rational design of Ru(CO)₃Cl₂L complexes for in vivo delivery of CO
João D. Seixas, Marino F. A. Santos, Abhik Mukhopadhyay, Ana C. Coelho, Patrícia M. Reis, Luís F. Veiros, Ana R. Marques, Nuno Penacho, Ana M. L. Gonçalves, Maria J. Romão, Gonçalo J. L. Bernardes, Teresa Santos-Silva and   Carlos C. Romão
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02966F

Free to access until 1^st January 2015

Enjoy a read of our latest HOT articles which are free to access for 4 weeks only! 

Our HOT articles have also been compiled into a collection and are available for viewing on our website. 

Redox activity and π bonding in a tripodal seven-coordinate molybdenum(VI) tris(amidophenolate)
Travis Marshall-Roth and Seth N. Brown
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02936D 

Free to access until 28^th December 2014 

FIrpic: archetypal blue phosphorescent emitter for electroluminescence
Etienne Baranoff and Basile F. E. Curchod
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02991G

Free to access until 28^th December 2014

Optimizing the high-field relaxivity by self-assembling of macrocyclic Gd(III) complexes
Dale Lawson, Alessandro Barge, Enzo Terreno, David Parker, Silvio Aime and Mauro Botta
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT02971B

Free to access until 28^th December 2014

Copper(I), silver(I) and gold(I) complexes of N-heterocyclic carbene-phosphinidene
Venkata A. K. Adiraju, Muhammed Yousufuddin and H. V. Rasika Dias
Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT03285C

Free to access until 28^th December 2014