A novel system and method for purification and disinfection of water containing contaminates is provided. The compounds are specific embodiments of an iridium complex, having the following structure:In the compounds of Formula I, n is 2, X\u2014Y is acetylacetonate, R1 is hydrogen or alkyl, R2 is hydrogen, and at least one R3 is alkyl. The edge wall comprises a vertical surface, a curved sidewall coupled to the vertical surface, and a lip coupled to the curved sidewall. The density separation device is coupled to an outlet of the tank. a cellular radio network, said terminal device further comprising a report generator for generating a report on a loss of connection, wherein said transmitter is adapted to send said report to an access node upon or after reconnecting, and a network access node, particularly a network access node of a wireless, e.