language: en

[Short Communications]

DOI: 10.1002/zaac.200700528

Crystal Structure and Disorder Phenomena of the Adduct of Neutral C 60 and the Ionic Gold Complex (Ptol 3 ) 2 AuNO 3

Martin Schulz-Dobrick and Martin Jansen*
Stuttgart,
Max Planck Institute for Solid State Research,
Germany
Received November 26th, 2007.

Abstract. The adduct C 60 � (Ptol 3 ) 2 AuNO 3 has been crystallized from toluene solutions of C 60 and (Ptol 3 ) 2 AuNO 3 as violet, trigonal plate-shaped crystals. The compound was studied by single-crystal x-ray diffraction (P3 � 1c, a = 1278.17(3), c = 2282.92(6) pm). The gold complex is dissociated into [(Ptol 3 ) 2 Au] + cations, which encapsulate the neutral C 60 molecules, and nitrate anions. The intermolecular interactions between the fullerene molecules and the gold complex cations and the resulting disorder is investigated. The crystal structure of C 60 � (Ptol 3 ) 2 AuNO 3 is providing an instructive example, demonstrating that symmetry-matching is not always sufficient for avoiding disorder.

Keywords: Fullerenes; Gold; Co-crystals; Solid-state structures; Supramolecular chemistry; Crystal engineering