Non-chelate Octahedral Complexes

Non-chelate Octahedral Complexes.—Crystals of potassium hexacyano-cobaltate(in) contain octahedral [Co(CN)e] anions in which the mean Co-C and C-N distances are 1.89(2) and 1.16(2) A the Co-C-N groups are linear. In crystals of [Co(NHj),][CdClB] the octahedral [Co(NH3)6 + cations lie on sites of crystallographic 3 symmetry the Co-N distance is 1.960(6) A.  

Crystals of ammonium disulphitotetra-amminecobaltate(ra) trihydrate contain discrete NH4+ cations, c/s-[Co(S03)2(NH8)4] anions, and water 

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Non-chelate Octahedral Complexes. Reports have appeared on the structures of ten octahedral complexes containing only unidentate ligands. These compounds are of the types MLg, trans-ML,ff, and trans-ML the absence of c/>isomers is striking. All but one of the complexes have Cj symmetry as a space-group requirement, and, in general, the interbond angles involving nickel are very close to ideal octahedral values. 

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