The cover picture shows the potential energy surface (PES) of the gold triiodide molecule (AuI3) with a novel L-shaped structure in the minimum energy position. A variety of the molecular orbitals for gold triiodides are shown in the background. It has been known that gold trihalides are not stable in their most symmetrical trigonal planar coordination, because they are subject to the Jahn Â± Teller effect and distort to lower symmetry T- or Y-shaped structures (also depicted on the PES). Our study revealed that this behavior depends on the halogen ligands, and that it changes gradually from the fluoride to the iodide. The structures and stabilities of the gold trihalides, together with those of the gold monohalides and all their dimers, are described in detail by M. Hargittai and A. Schulz on p. 3657 ff. CONCEPTS The controlled formation of synthetic molecular containers by metal-mediated self-assembly is an increasingly important field because of the multifaceted chemistry that can often be performed within such containers (see figure). This work proposes a new classification system which describes such species in terms of their self-assembly properties. Contents G. F. Swiegers,* T. J. Malefetse . . . . . . . .
Chemistry – A European Journal – Wiley
Published: Sep 3, 2001
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