A friction clutch is provided between an internal combustion engine and a transmission, which is incorporated in a motor vehicle, the clutch comprising driving disks and transmission disks. The programmable structure generally include an ion conductor and a plurality of electrodes. At least one corresponding secondary axis is in the same plane as the primary axis. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The closure and frame are each made of one or more components. The formula compound is particularly suitable for using as a component in a black dye composition for ink-jet printing ink, and inkjet printing inks with good light-fastness are obtained.