Presented by: Vanessa E. Fairbank & Dr. Amber L. Thompson
Research Leader: Dr. Andrew L. Goodwin
Published: Physical Review B
Cubic Cd(CN)2 shows the strongest known isotropic negative thermal expansion (NTE; volume contraction on heating). Variable-temperature single-crystal X‑ray diffraction suggests there is temperature-dependent off-centering of Cd2+ ions that has the effect of increasing … Read the rest
Presented by: Sebastian D. Pike & Dr. Amber L. Thompson
Research Leader: Prof. Andrew S. Weller
Published: Science
Transition metal σ-alkane complexes are key intermediates in catalytic C–H activation processes. We have used a direct crystal to crystal transition, by reaction with H2, to produce an alkane σ-complex directly. This structure is of … Read the rest
Presented by: Nicholas G. White
Research Leader: Prof. Paul D. Beer
Published: Chemical Communications
Pyridinium-3,5-bis(triazole) can bind anions through polarised C-H···anion hydrogen bonds. We have incorporated this motif into pseudorotaxanes, catenanes and rotaxanes (in conjunction with an isophthalamide macrocycle), and the resulting interlocked architectures are formed in high yields and display interesting and unusual anion … Read the rest
Presented by: Dr. Andrew D. Schwarz
Research Leader: Prof. Philip Mountford
Published: Chemical Science
Inspired by the development of high-energy, early transition metal-ligand multiply-bonded systems, we targeted the unprecedented classes of bis(imido) and tris(imido) compounds of the group 4 metals (to give the first example of a group 4 metal simultaneously containing two or three … Read the rest
Presented by: Matthew P.Blake
Research Leader: Prof. Philip Mountford
Published: Journal of the American Chemical Society
Metal-metal bonded molecular compounds have been an essential part of development in inorganic chemistry for decades; research has been reenergized by the discovery of the first Cr-Cr quintuple-, Zn-Zn single- and Mg-Mg single bonds. However, within this rich and … Read the rest
Presented by:Â Andrew B. Cairns & Dr. Amber L. Thompson
Research Leader:Â Dr. Andrew L. Goodwin
Published:Â Journal of the American Chemical Society (cover article)
Negative Linear Compressibility (NLC) is where a material unusually expands in one direction under increasing pressure. Potassium manganese dicyanoargentate exhibits the largest NLC over an extended range of any known … Read the rest
Presented by:Â Matthew J. Langton, Jonathan D. Matichak & Dr. Amber L. Thompson
Research Leader:Â Prof. Harry L. Anderson
Published:Â Chemical Science (cover article)
Fully Ï€-conjugated porphyrin oligomers exhibit remarkable properties such as ultrafast energy migration, strong two-photon absorption and wire-like charge transport. The possibility to encapsulate them by rotaxane formation may provide valuable control … Read the rest
Presented by:Â Matthew Tatton & Paul Winship
Research Leader:Â Prof. Timothy J. Donohoe
Published:Â Â Angewandte Chemie International Edition
This is the final isolated intermediate in the synthesis of Neodysiherbaine A; crystals were very small, so data were collected on I19 at Diamond. The natural product is an excitatory amino acid isolated from the Dysidea herbacea … Read the rest
Presented by: Nicholas G. White & Dr. Fabiola Zapata
Research Leader: Prof. Paul D. Beer
Published: Journal of the American Chemical Society
Both the mixed bromide/PF6 and mixed iodide/PF6 salt of this bis-iodoimidazolium macrocycle crystallize in the unusual cubic spacegroup I m -3 (there are currently only six organic structures in this spacegroup … Read the rest
Presented by:Â Dr. Andrew D. Schwarz & Liban M. A. Saleh
Research Leader:Â Prof. Philip Mountford & Prof. Simon Aldridge
Published:Â Journal of the American Chemical Society
Transition-metal boryl compounds (L)M(BX2)x, containing 2‑center, 2‑electron σ‑bonds have been a topic of outstanding interest due to pivotal roles … Read the rest