Issue 65, 2002

On the existence of long C–C bonds between pairs of anions which repel: when and why? A test case on the [TCNE]22− dimers found in ionic crystals

Abstract

Many of the Cm[TCNE]n (C = cation) salts have intradimer C–C interactions in the range of 2.9 to 3.5 Å and show the electronic fingerprints associated with C–C bond formation (IR and UV spectra, magnetic properties, structural changes), despite the fact that two [TCNE]˙ anions should repel each other due to purely Coulombic considerations. Herein, we analyze these pairwise interactions in detail for a particular crystal in which such a C–C bond is found, to understand when and why these bonds are formed in a general case.

Article information

Article type
Paper
Submitted
07 mar 2002
Accepted
02 may 2002
First published
18 iyl 2002

CrystEngComm, 2002,4, 373-377

On the existence of long C–C bonds between pairs of anions which repel: when and why? A test case on the [TCNE]22− dimers found in ionic crystals

J. J. Novoa, P. Lafuente, R. E. Del Sesto and J. S. Miller, CrystEngComm, 2002, 4, 373 DOI: 10.1039/B202400B

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