The X- ray diffraction laboratory offers single crystal structure and powder diffraction analyses and an advice on general problems dealing with crystallography. Four X-ray automatic diffractometers are available: three single crystal diffratometers with low temperature devices (Agilent Gemini, Bruker Nonius and Bruker Kappa Apex II), and one powder diffractometer (Panalytical MPD Pro). For single crystal analyses, the X-ray diffraction staffs take care of the manipulation of air.
Four X-ray automatic diffractometers are available: three single crystal diffratometers with low temperature devices (Agilent Gemini, Bruker Nonius and Bruker Kappa Apex II), and one powder diffractometer (Panalytical MPD Pro).
For single crystal analyses, the X-ray diffraction staffs take care of the manipulation of air sensitive crystals, recording of diffracted intensities, data reduction, solution and refinement of the structures, graphical representation and edition of the crystallographic part of the manuscripts.
The powder diffractometer is a multi-purpose X-ray diffraction system, allowing standard reflection measurements, at variable temperature (- 90 to + 450 °C), on non air-sensitive samples (with an average volume of 100 mm3), and room temperature transmission measurements on air-sensitive samples in capillary tubes. The powder diffraction analyses lead to phase identification, cell search and refinement, Rietveld structure refinement, variable temperature studies and quantitative analysis.
Three powder diffractometers are part of the structural analysis service using X-ray diffraction (a Panalytical MPDPro, a Miniflex600 from Rigaku and a SmartLab 3kW Multipurpose by Rigaku).
SmartLab 3kW Multipurpose Powder Diffractometer by Rigaku
Theta/theta diffractometer equipped with a fast linear detector D/Tex Ultra250: OD and 1D detector “High Energy” version.
- capillary transmission,
- reflection with a 6-position sample changer,
- variable temperature chamber coupled with a DSC (from ambient to +350°C),
- research on thin layers by shaving
Tabletop powder diffractometer, Rigaku's Miniflex600
Theta /2 theta geometry is included on this benchtop powder diffractometer, which was installed in October 2020.
It has a Cu anode, a rapid 1D detector with energy selection, a 6-position sample changer, and a dome-type sample holder for air-sensitive powders.
Panalytical MPDPro Powder Diffractometer
Multi-configuration theta/theta diffractometer (transmission, reflection, variable temperature) with a fast linear detector.
Single crystal diffractometers
The X-ray diffraction structural analysis service includes three single crystal diffractometers equipped with low temperature liquid nitrogen and helium devices (a Gemini, a Synergy from Rigaku Oxford Diffraction, and a Kappa Apex II from Bruker AXS).
Single Crystal Diffractometer XtaLAB Synergy-S by Rigaku
This diffractometer, which was installed in the lab in September 2021, consists of two micro-focus X-ray sources (Mo and Cu radiation), a Hypix6000 hybrid pixel Si detector, and an Oxford Cryosystems 800 liquid nitrogen cryogenic system that allows the crystal temperature to be varied from 90 K to 400 K.
It combines the advantages of micro-sources (high diffracted intensity) with the outstanding signal/noise ratio of a pixel matrix detector with semi-conductors, allowing direct photon detection and counting by X-rays.
The choice of anode enables for adaptation to the materials under investigation.
Gemini diffractometer by Rigaku
Four-circle diffractometer (Kappa geometry) with two-dimensional CCD (EOS) type detector, Cu and Mo double anode. Low-temperature liquid nitrogen equipment: Cryojet (Oxford Instruments) capable of reaching 90 K. Low-temperature helium equipment: Helijet (Oxford Instruments) allowing to go down to 15K.
Bruker Kappa APEX II Diffractometer
Four-circle diffractometer (Kappa geometry) with two-dimensional CCD-type detector (APEX II).
Low-temperature liquid nitrogen equipment: Cryostream (Oxford Cryosystems) to reach 90 K.
Carine Duhayon: email@example.com
Sonia Mallet-Ladeira: firstname.lastname@example.org
Laure Vendier: email@example.com
Phone: +33 5 61 33 31 18
Fax: +33 5 61 55 30 03
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El Kadiri, M., Chihab, A., Taakili, R., Duhayon, C., Valyaev, D. A., & Canac, Y. (2022). Diverse C-coordination modes of NHC-tricyclohexylphosphonium ylide ligands in palladium(II) complexes. Organometallics, 41(4), 456–466.
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Ayyappan, R., Saha, K., Grellier, M., Clot, E., Vendier, L., Ghosh, S., Sabo-Etienne, S., & Bontemps, S. (2021). Impact of the alkali metal on the structural and dynamic properties of the anionic pentahydride ruthenium complexes [M(THF)x][RuH5(PCy3)2] (M = Li, Na, K). Organometallics, 40(17), 3024–3032.
Barba-Barba, R. M., Chammam, M., Ramos-Ortiz, G., Listunov, D., Velusamy, J., Rodriguez, M., Carriles, R., Silva, C. G., Duhayon, C., Kauffmann, B., Maraval, V., & Chauvin, R. (2021). Linear and nonlinear optical properties of a quadrupolar carbo-benzene and its benzenic parent: The carbo-merization effect. Dyes Pigm., 188, 109133/1–12.
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Berthonnaud, L., Esmieu, C., Mallet-Ladeira, S., & Hureau, C. (2021). Solid-state and solution characterizations of [(TMPA)Cu(II)(SO3)] and [(TMPA)Cu(II)(S2O3)] complexes: Application to sulfite and thiosulfate fast detection. J. Inorg. Biochem., 225, 111601/1–9.
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Laboratoire de chimie de coordination du CNRS
205 route de Narbonne, BP 44099
31077 Toulouse cedex 4