Amber L. Thompson

Aug 282012
 

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.

The Soup Dragon

The Soup Dragon

Aug 202012
 

Mr. Rafal WiewioraAn 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.

Aug 102012
 

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)

 

Along the bryggen in Bergen

Along the bryggen in Bergen

In Bergen

In Bergen

Something smells a little fishy

Something smells a little fishy

A BIG fishy!

A BIG fishy!

It really *IS* that expensive in Norway!

It really *IS* that expensive in Norway!

Albert Einstein or Edvard Greig?

Albert Einstein or Edvard Greig?

Norwegian Humour

Norwegian Humour

 

Jul 262012
 

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.

Jul 042012
 

Picture of Emmanuel Marfo-Owusu
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.

May 012012
 

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%).

Structure of the Month – May 2012

Structure of the Month – May 2012

Apr 202012
 

The 2012 Meeting of the British Crystallographic Association was held at Warwick University.  Oxford was very well represented this year with Kirsten Christensen chairing the Programme Committee and prizes being awarded to Joe Paddison, Nick Funnell and Emma McKinley.

Other contributions from Oxford include:

Karim J. Sutton, Kirsten E. Christensen, Amber L. Thompson & Richard I. Cooper
Exploiting the Tunable Wavelength Capabilities of I19 (Poster & Oral Presentation)

Callum A. Young & Andrew L. Goodwin
An Examination of the Low Temperature Structure of Fe3O4 Using Reverse Monte Carlo Refinements (Oral Presentation)

Andrew L. Goodwin
Frameworks, Flexibility and Frustration (Oral Presentation)

Kirsten E. Christensen, Amber L. Thompson & Arwen R Pearson
Discussion Forum:  From Small Molecules to Proteins:  Bridging the Gap

Emma J. McKinley, Kirsten E. Christensen & Amber L. Thompson
Investigation of the Transient Modulated Phase of Barluenga’s Reagent (Poster)

Andrew B. Cairns, Amber L. Thompson, Andrew L, Goodwin, Matthew G. Tucker & Julien Haines
Anomalous Compression of Cyanide Frameworks:  Mechanisms for Extreme Negative Response (Poster)

Callum A. Young, Edward Dixon, Michael A. Hayward & Andrew L. Goodwin
Apical Oxygen Bonding in YBCO – A Reverse Monte Carlo Approach (Poster)

Ines E. Collings, Andrew B. Cairns, Amber L. Thompson, Andrew L, Goodwin, Philip Pattison, Julien Haines, Matthew G. Tucker, Julia E. Parker & Chiu C. Tang
Transferable Mechanics in Molecular Framework Materials (Poster)

Joseph A. M. Paddison, Andrew L. Goodwin, Ross Stewart, Pascal Manuel, Matthias J. Gutmann, David A. Keen, Matthew G. Tucker, Andrew Wildes & Brian Rainford
Frustration and Magnetic Diffuse Scattering in β-Mn0.8Co0.2 and MnO:  A Reverse Monte Carlo Study (Poster)

Matthew Cliffe & Andrew L. Goodwin
Disorder and Defects in Zirconium MOFs (Poster)

Nicholas P. Funnell, Martin T. Dove Andrew L. Goodwin Simon Parsons & Matthew G. Tucker
How Molecules Prepare to Undergo a Transition:  The Onset of Disorder in Solid Cyclohexane (Poster).

 

Karim speaks to the Young Crystallographers

Karim speaks to the Young Crystallographers

 

Emma, Richard and Ines go to the conference dinner

Emma, Richard and Ines go to the conference dinner

Ines and Emma

Ines and Emma

This time Karim brought his Dad...

This time Karim brought his Dad…

Callum and Emma at Dinner

Callum and Emma at Dinner

Kirsten presents Nick with his prize

Kirsten presents Nick with his prize

Emma receives her prize

Emma receives her prize

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Contemplating Fourier Transforms...

Contemplating Fourier Transforms…

Mar 192012
 

Acta Cryst.  (2012), C68, o152-o155.    [ doi:10.1107/S0108270112009377 ]

Tetraisohexylammonium bromide [systematic name: tetrakis(4-methylpentyl)azanium bromide], C24H52N+·Br, is a powerful structure II clathrate hydrate crystal-growth inhibitor. The crystal structure, in the space group P3221, contains one ammonium cation and one bromide anion in the asymmetric unit, both on general positions. At 100 K, the ammonium cation exhibits one ordered isohexyl chain and three disordered isohexyl chains. At 250 K, all four isohexyl chains are disordered. In an effort to reduce the disorder in the alkyl chains, the crystal was thermally cycled, but the disorder remained, indicating that it is dynamic in nature.

Tetraisohexylammonium Bromide

Tetraisohexylammonium Bromide

Electronic reprints

  • Oxford University Research Archive [direct pdf]

Publisher’s copy

Mar 072012
 

Dave is the Principal Beamline Scientist on the small-molecule single-crystal diffraction beamline, I19. Before his appointment at Diamond in 2006, Dave was a lecturer in The School of Physics at The University of Edinburgh and he laterally held an EPSRC Advanced Research Fellowship within The School of Chemistry. Apart from developing the beamline to improve its capabilities for the ever increasing user base, his main research interests involve the high-pressure and low-temperature polymorphism of small-molecule systems and the development of in situ crystal growth techniques. Dave can occasionally been seen around the department, usually on Tuesdays, when he gets the chance to attend the Chem. Cryst. group meetings.

Mar 072012
 

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