Die Strukturen zweier 1:2‐Chromkomplexe von o, o′‐Dihydroxydiaryl‐trans‐azo‐Farbstoffmolekeln

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Abstract
The crystal structure determinations of two pyridinium salts of 1:2‐chromium complexes formed by o,o′‐dihydroxy‐trans‐azo molecules show that the structure of the anions corresponds to the DREW‐PFITZNER arrangement [2], as postulated by G. SCHETTY [1] for cases where the ligands form five‐ and six‐membered rings with the metal ion. The correct structure formulae are given (cf. formulae I and II); as the refinement of both structures is still going on, further details (such as bond lengths and bond angles) will be published in Z. Krist.