Octahedral arrangement distorted

CrP has been synthesized by reaction of the elements at pressures of 15— 65 kbar. The crystal structure involves chromium atoms co-ordinated by six phosphorus atoms in a distorted octahedral arrangement with Cr—P = 232—239 pm. CrMAs (where M = Co or Ni) have been characterized by A"-ray diffraction spectra. ... 

Natural stibnite is black orthorhombic crystal or grayish-black powder the compound also exists as an amorphous substance in yeUow-red modification distorted octahedral arrangement density 4.64 g/cm for the natural stibnite and 4.12 g/cm for the red modification melts at 550°C vaporizes around 1150°C insoluble in water (1.75mg/L at 18°C) and acetic acid soluble in hydrochloric acid and caustic soda solution also, soluble in alcohol, ammonium hydrosulfide and potassium sulfide. 

Isotropic sulfides dominate the Group VIII sulfides. Many different structures exist in this group, such as pyrite (RuS2), pentlandites (Ni.3S2), and others. The coordination of the metals in this group by sulfur is generally sixfold, octahedrally arranged, but some special structures, such as CoySs, can also contain mixed sixfold and fourfold tetrahedral coordination. Some structures, such as PdS and PtS, also contain metals in distorted sixfold coordination. 

Cu(salen), then a red precipitate of Cu(salen) 2AgC104-2H20 formed. The structure was thought to be similar to that found with NaC104,393 where the silver atom would be six-coordinate. Four oxygen atoms from the complex ligands, Cu(salen), and two from the bidentate perchlorate ion would make up a distorted octahedral arrangement. 

The following compounds of the p-block elements contain seven electron pairs in the valence shell, but the six unidentate ligands are octahedrally arranged, with only small distortions 264... 

Tetraaza macrocycles usually coordinate with the N4 donor set approximately coplanar for square planar or trans octahedral arrangements. The more flexible macrocycles can also coordinate in folded arrangements, usually to accommodate an additional chelate ligand in an octahedral arrangement, and planar-folded interconversions are facile. In planar coordination some degree of tetrahedral distortion of the donor set is common, and this can become substantial for larger ring... 

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