STRUCTURE OF THE C₆₀*TMPD NEW COMPLEX. V. V. Gritsenko, O. A. Dyachenko, V. A. Nadtochenko, Institute of Chemical Physics in Chernogolovka, RAS, Chernogolovka, Moscow region, 142432 Russia, Fax: 7(096)5153588, grv@icp.ac.ru

The crystal structure of a C₆₀*TMPD (1) (TMPD -- N,N,N',N'-tetramethylparaphenylenediamine) new complex with charge transfer was studied by X-ray analysis. The charge transfer is confirmed by IR-spectrum data. The red shift for the number of vibrational modes, especially for the 1428 cm^-1 mode, is observed in IR-spectra, which corresponds to a partial charge transfer from the amine molecule to C₆₀. The X-ray structural data also testify to the charge transfer in 1: the TMPD molecules is flat, that pointing to the molecule charging.

It is shown that there are fullerene layers between which the TMPD molecules are arranged in the crystal structure. The shortened contacts of the C...C type (3.21(2)--3.32(1)) are discovered between TMPD and fullerenes (Fig. 1). Such contact shortening is obviously based upon the donor-acceptor interaction of TMPD with C₆₀. The presence of the shortened C...C contacts accounts for the relative ordering of the fullerenes in the structure 1.

Fig. 1