Crystal structure refinement with SHELXL

Synthesis and characterization of a novel fluorinated bismaleimide via a nucleophilic addition–elimination reaction and its polymeric networks

A novel fluorinated bismaleimide, OFCP-BMI, was designed and readily synthesized via the nucleophilic addition–elimination reaction of octafluorocyclopentene with maleimide-functionalized phenol.

A hydrothermally stable Zn(ii)-based metal–organic framework: structural modulation and gas adsorption

A hydrothermally stable MOF, [Zn₂(tcpt)OH]·solvents (1·solvents), was synthesized, in which an unusual paddlewheel SBU, Zn₂(COO)₃, was found. Furthermore, 1 can adsorb considerable amounts of H₂ and displays high selective adsorption of CO₂ over N₂.

Crystalline adducts of the Lawsone molecule (2-hydroxy-1,4-naphthaquinone): optical properties and computational modelling

Crystal-engineering techniques allow the colour of the molecule in henna dye (Lawsone) to be tuned from yellow to red.

Synthesis of unusual isoxazoline containing and -dipeptides as potential glutamate receptor ligands

Unconventional beta and gamma dipeptides as tools to investigate the iGluR binding domain.

Crystal structures of hydrated rare-earth bis(trifluoromethylsulfonyl)imide salts

Structural characterisation of the full range of hydrated rare-earth bis(trifluoromethylsulfonyl)imide salts showed the structures to be [Sc(H₂O)₇][Tf₂N]₃·H₂O, Ln(H₂O)₃(Tf₂N)₃, Ln(H₂O)₃(Tf₂N)₃ or [Ln(H₂O)_x][Tf₂N]₃.

Rare-earth metal methylidene complexes with Ln3(μ3-CH2)(μ3-Me)(μ2-Me)3 core structure

Although protected from intermolecular deactivation by a picket-fence-type arrangement of bulky amido ligands the CH₂²⁻ moiety is readily converted into oxo species.

A trigonal prismatic Cu6-pyrazolato complex containing a μ6-F ligand

The encapsulation of a fluoride ion in a trigonal prismatic CuII6-pyrazolato cage results in a small expansion of the Cu₆-host.

Reactivity of halfsandwich rare-earth metal methylaluminates toward potassium (2,4,6-tri-tert-butylphenyl)amide and 1-adamantylamine

Donor functionalities drastically affect salt-metathetical methylaluminato–amido exchange reactions in Cp^RLn(AlMe₄)₂ by triggering methylaluminate cleavage and C–H bond activation of proximal aliphatic groups.

Luminescent pentafluorophenyl-cycloplatinated complexes: synthesis, characterization, photophysics, cytotoxicity and cellular imaging

Pentafluorophenyl cycloplatinated complexes have been synthesized and their photophysical properties studied and investigated by DFT, TD-DFT calculations. The cellular localization and the cytotoxicity of [Pt(C^N)(C₆F₅)(DMSO)] complexes towards two different cell lines has been assessed.

SHELXT - integrated space-group and crystal-structure determination

The new computer program SHELXT employs a novel dual-space algorithm to solve the phase problem for single-crystal reflection data expanded to the space group P1. Missing data are taken into account and the resolution extended if necessary. All space groups in the specified Laue group are tested to find which are consistent with the P1 phases. After applying the resulting origin shifts and space-group symmetry, the solutions are subject to further dual-space recycling followed by a peak search and summation of the electron density around each peak. Elements are assigned to give the best fit to the integrated peak densities and if necessary additional elements are considered. An isotropic refinement is followed for non-centrosymmetric space groups by the calculation of a Flack parameter and, if appropriate, inversion of the structure. The structure is assembled to maximize its connectivity and centred optimally in the unit cell. SHELXT has already solved many thousand structures with a high success rate, and is optimized for multiprocessor computers. It is, however, unsuitable for severely disordered and twinned structures because it is based on the assumption that the structure consists of atoms.