Conor is spending most of his Part II year in Australia with the Cameron Kepert’s Research Group at the University of Sydney. He is working on the in situ analysis of CO2 adsorption in metal-organic frameworks. This involves a specially designed setup allowing the use of single crystal X-ray diffraction to ascertain structural information on CO2 binding in these frameworks. When not in the lab, Conor can be found learning to surf on Bondi Beach.
Will is working with Nick Rees, looking into the host/guest complexes of deoxycholic acid. Using variable temperature single crystal diffraction, along with Solid State NMR and Differential Scanning Calorimetry the project is particularly focused on phase changes within the crystal as a function of temperature. When not in the lab he enjoys long lunches, and competing for the Oxford Modern Pentathlon team.
Presented by: Sebastian D. Pike & Dr. Amber L. Thompson
Research Leader: Prof. Andrew S. Weller
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 an alkane (norbornane, NBA) σ-bound to a d8–Rh(I) metal centre, in which the chelating alkane ligand is coordinated to the pseudo-square planar metal centre through two σ-C–H bonds. Although disordered (inset), the structure was refined without restraints for the coordinated NBA. The complex reacts further over time, so many attempts were required to “catch” the crystal free from both starting material and final product.
The second meeting of the Red Kite network will be held on Tuesday 18th September, 2012 at ISIS. Attendance will be free of charge and there will be a transport from Oxford and a drinks reception thanks to generous sponsorship from ISIS. There will also be a tour of the ISIS facility, followed by a microsymposium, comprising a number of short talks by local speakers, focussed on the use of neutrons in structural science and ending with a drinks reception and poster session.
Please check out the program for more details and email Amber L. Thompson (amber.thompson @ chem.ox.ac.uk) or Marek Jura (marek.jura @ stfc.ac.uk) BY MONDAY 10TH SEPTEMBER, if you want to come on the bus, otherwise we need a complete list of names by FRIDAY 14TH SEPTEMBER to arrange security clearance for the tours of ISIS.
Can you help us solve the Mystery of the Soup Dragon? It was found, abandoned (presumably by a postman) in Amber’s pigeon-hole, in a black plastic wrapper. He’s not very talkative, just gurgles very softly occasionally, but seems to be happy making a new home in Amber’s office in Chem. Cryst. Any information on the origin of The Soup Dragon would be greatly appreciated.
An undergraduate at Pembroke, Rafal joined us for 5 weeks to carry out a summer research project between his 2nd and 3rd years. Rafal is working on the inclusion compounds of deoxycholic acid, particularly the nature of the host-guest binding and order-disorder phase transitions. When he’s not enjoying chemistry in the lab, Rafal can probably be found working hard in Pembroke College boathouse.
Summer is conference season and the members of Chem. Cryst. have been on the road to the ACA in Boston and the ECM in Bergen. In September, Kirsten will also be attending the 7th International Conference on Aperiodic Crystals, to be hosted in Cairns, Australia. Contributions include:
David J. Watkin, Richard I. Cooper & Anna Collins
Z’>1 Structures. Just a Nuisance or Something More Interesting? (ACA; Oral presentation)
Karim J. Sutton, Richard I. Cooper, Kirsten E. Christensen, Amber L. Thompson, David R. Allan & Sarah A. Barnett
Exploiting the Tunable Wavelength Capabilities of Synchrotron Radiation for Small Molecule Single Crystal X-ray Crystallography (ACA; Prize winning oral presentation)
Richard I. Cooper
CRYSTALS: Teaching an Old Dog New Tricks (ACA; Oral presentation)
Amber L. Thompson
When Small Molecules Get Large – A Journey into the Unknown (ECM; Oral presentation)
Anthony Linden & Amber L. Thompson
Hot topics and Structures in Molecular Chemistry (ECM; Microsymposium)
Kirsten E. Christensen & Amber L. Thompson
New Challenges in Chemical Crystallography (Aperiodic; Oral presentation)
The results have just been announced for the latest round of applications to the John Fell Oxford University Research Fund. Our application for funding for meetings for the Red Kite network over the next three years was successful, which is excellent news and should secure its immediate future.
Following his degree in Tokyo studying supramolecular complexes of achiral surfactant molecules with racemic and chiral aromatic guest molecules, Emmanuel travelled extensively. He has worked at the Ghana Atomic Energy Commission as Senior Scientific officer; at the Department of Chemistry in University of Ghana as Senior Lecturer; at the Department of Chemistry in Mississippi State University, Starkville; at the Department of Chemistry in University of Washington, Seattle; at the Chemistry Department in Sultan Qaboos University in the Sultanate of Oman; at the University of Nizwa, in Oman as an Assistant Professor of Chemistry, as well as studying at the Department of Crystallography in University of Pittsburgh and the Structural Chemistry Laboratory in University of Witwatersrand, South-Africa.
Since 2010, Emmanuel has been working at the Chemistry Department at the University of Cape Coast in Ghana as an Associate Professor and he is working hard to establish the first crystallography laboratory in Ghana to serve Ghana Scientific Institutions and those in the West-Africa sub-region. Emmanuel’s current research is centred on structural studies of self assembly structures that aggregate through O-H…N, N-H…O and O-H…O inter/intramolecular interactions, with special emphasis on those that possess functional molecular properties.
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 selectivities. Despite the difficulties of crystallising such systems, single crystals of a pseudorotaxane, rotaxane and catenane have all been isolated (as chloride salts). Data were collected using a Nonius Kappa-CCD, synchrotron radiation on I19 at Diamond and Cu Kα radiation with an Oxford Diffraction (Agilent) SuperNova (respectively). All three datasets are of unusually high quality for such systems (final R1 [I > 2σ(I)] = 6.9-8.0%).