HETEROCOMPLEX-BASED GRAPHITE LAMELLAR COMPOUNDS - C22CUAL2CL8.5 AND C10CD0.2ALCL3.7 - INTERCALATION PATHWAY, STRUCTURE AND TRANSPORT

Attempts to intercalate the chloroaluminate complexes CuAl2Cl8 and CdA l2Cl8 into graphite have resulted in the synthesis of two new first st age compounds, C22CuAl2Cl8.5 and C10Cd0.2AlCl3.7. Theformer possesses an oblique in-plane unit cell, the latter a rectangular cell, commensu rate with that of the host lattice. The electrical resistivity has bee n studied within (rho,) and perpendicular (rho,) to the basal planes f rom 295 to 4.2 K. Both d(rho a)/dT and d(rho c)/dT are positive (metal lic) and the anisotropy rho(c)/rho(a) lies between 10(5) and 10(6) ove r the full temperature range. The data are analyzed and discussed in t erms of the structure and current transport theories.