[ClF2]+[RuF6]− and [ClO2]+[RuF6]−: ionic salts with covalent traits

Cl7

141

[ClFJ+[RuF,]-

: IONIC SALTS WITH COVALENT

AND [ClO,]+[RuF,]-

TRAITS

Walter V. Cicha and Roland Bougon DPhG/SCM,

CEA/CEN

Saclay, 91191 Gif-sur-Yvette,

The single crystal x-ray structures

of [ClF,]+[RuF,]‘

Cedex France

and [ClO,]‘[RuFJ

are the first

reported for salts containing an oxidized halogen together with a transition-metal (1). A detailed comparison different

anion

of these structures with those of analogous salts containing

metal centers as well as with other [Cat]‘[RuF,]-

increased degree of covalency is displayed by the ruthenium

species is afforded.

An

derivatives and is supported

by IR and Raman spectroscopy studies, among others. Evidence is also presented suggest a general “transition metal effect” affecting the bonding in salts of this type.

(1) W.V. Cicha, R. Bougon et al., 1nnorg.C/tern.30, 102 (1991).

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