Crystal structure refinement with SHELXL
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TLDR
New features added to the refinement program SHELXL since 2008 are described and explained.Abstract:
The improvements in the crystal structure refinement program SHELXL have been closely coupled with the development and increasing importance of the CIF (Crystallographic Information Framework) format for validating and archiving crystal structures. An important simplification is that now only one file in CIF format (for convenience, referred to simply as `a CIF') containing embedded reflection data and SHELXL instructions is needed for a complete structure archive; the program SHREDCIF can be used to extract the .hkl and .ins files required for further refinement with SHELXL. Recent developments in SHELXL facilitate refinement against neutron diffraction data, the treatment of H atoms, the determination of absolute structure, the input of partial structure factors and the refinement of twinned and disordered structures. SHELXL is available free to academics for the Windows, Linux and Mac OS X operating systems, and is particularly suitable for multiple-core processors.read more
Citations
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Cobalt- and Rhodium-Corrole-Triphenylphosphine Complexes Revisited: The Question of a Noninnocent Corrole
Sumit Ganguly,Diemo Renz,Logan J. Giles,Kevin J. Gagnon,Laura J. McCormick,Jeanet Conradie,Ritimukta Sarangi,Abhik Ghosh +7 more
TL;DR: It is suggested that cobalt-corrole-triphenylphosphine complexes are significantly noninnocent with moderate CoII-cor role•2- character, underscoring-yet again-the ubiquity of ligand noninnocence among first-row transition metal corroles.
Journal ArticleDOI
Enhancement of TbIII–CuII Single-Molecule Magnet Performance through Structural Modification
María José Heras Ojea,Victoria A. Milway,Gunasekaran Velmurugan,Lynne H. Thomas,Simon J. Coles,Claire Wilson,Wolfgang Wernsdorfer,Gopalan Rajaraman,Mark Murrie +8 more
TL;DR: A remarkable improvement of the energy barrier to reorientation of the magnetisation in the {Tb2Cu3(H3L)2Xn} complexes is seen by changing the auxiliary ligands, which leads to the largest reported relaxation barrier in zero applied dc field for a Tb/Cu‐based single‐molecule magnet.
Journal ArticleDOI
Magnetic Excitations in Polyoxotungstate-Supported Lanthanoid Single-Molecule Magnets: An Inelastic Neutron Scattering and ab Initio Study.
Michele Vonci,Marcus J. Giansiracusa,Willem Van den Heuvel,Robert W. Gable,Boujemaa Moubaraki,Keith S. Murray,Dehong Yu,Richard A. Mole,Alessandro Soncini,Colette Boskovic +9 more
TL;DR: The relationship between the wave function composition of the CF split LnIII ground multiplets and the experimentally measured magnetic and spectroscopic properties for the various analogs of the Na9[Ln(W5O18)2] family is established.
Journal ArticleDOI
Variations of Structures and Phenoxazinone Synthase-like Activity of the Complexes Based on (CuII)2MnII Node and Dicyanamide Spacer
TL;DR: In this paper, three new heterometallic Cu(II)-Mn(II) complexes, [{(CuL)2Mn}2(μ1,5-N(CN)2)(CH3CN) 2]-ClO4)3 (1), [(CuL] 2Mn[N[CN]2]·(H2O)
References
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A short history of SHELX
TL;DR: This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination.
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Structure validation in chemical crystallography
TL;DR: This paper reports on the current status of structure validation in chemical crystallography and describes the current state of research in this area.
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On enantiomorph‐polarity estimation
TL;DR: In this article, the behaviour of the Rogers's η parameter for enantiomorph-polarity estimation is examined theoretically and experimentally on simulated intensity data for seven well-assorted compounds.
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The Cambridge Structural Database: a quarter of a million crystal structures and rising
TL;DR: The Cambridge Structural Database now contains data for more than a quarter of a million small-molecule crystal structures, and projections concerning future accession rates indicate that the CSD will contain at least 500,000 crystal structures by the year 2010.