The complexes AsPh4[Cl4V = N-Cl] and AsPh4[VOCl4] are prepared by the reaction of AsPh4Cl with Cl3VNCl and VOCl3, respectively. The IR spectra indicate C4v symmetry for the complex anions with multiple VN and VO bonds and a linear arrangement for the VNCl-group. AsPh4[VOCl4] crystallizes in the tetragonal space group P4/n with two formula units in the unit cell. The crystal structure was solved by X-ray diffraction methods (R = 0,062, 1096 observed, independent reflexions). The structure consists of AsPh4+ cations and [VOCl4]- anions with symmetry C4v. The extremely short VO bond length corresponds with a VO triple; its steric requirements cause the relatively large bond angle OVCl of 103.4°.
Die IR‐Spektren der gemäß Reaktionen A bzw. Bdargestellten Komplexe (I) und (II) stehen im Einklang mit der Symmetrie C4v für die komplexen Anionen mit V‐N‐ und V‐O‐Mehrfachbindungen und einer linearen Anordnung der VNCI‐Gruppe.
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