STRUPL084 is a Fortran plot program for drawing crystal structures in polyhedral or skeletal representation. All data are read in free format by standard Fortran routines. Atomic positions are also accepted in formats compatible with the input for the programs SHELX and ORFLS. The structure can be rotated by three rotation angles applied to the orthogonal axes. Instead of giving the rotation angles a view direction can be specified. The output includes a list of direct and orthogonal coordinates and tables with interatomic distances and angles. Atoms that were found to form coordination polyhedra are listed separately. The program is 'user friendly' inasmuch as an acceptable plot can be achieved with minimum input by making use of the default options. Atoms not belonging to any polyhedra can be drawn as circles with specified radii.
The broad spectrum acaricides spirodiclofen (BAJ2740, trade name: Envidor®) and spiromesifen (BSN2060, trade name: Oberon®) with an additional excellent activity against whiteflies, both belong to the new chemical class of tetronic acid derivatives discovered
at Bayer CropScience during the 1990s. The discovery process starting from herbicidal PPO (protoporphyrinogen oxidase) chemistry, the synthetic routes leading to the products, and some insight into process development of central intermediates is given. Spirodiclofen and spiromesifen have a
new mode of action (interference with lipid biosynthesis), show no cross-resistance to any resistant mite or whitefly field population and are therefore valuable tools for resistance management.
Notably distorted, adamandoid Cu10 cages with Cu···Cu edges of 10.795(6) Å (Cu−CN−Sn(Me3)−NC−Cu) and 7.142(5) Å (Cu−pyrazine−Cu) are the basic building blocks of the novel supramolecular assembly [CuCN·Me3SnCN·C4H4N2] (C4H4N2 = pyrazine). Interpenetration of three equivalent, distorted-diamondoid frameworks affords comparatively compact crystal packing.
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