A synthetic, structural, spectroscopic and DFT study of Re(I), Cu(I), Ru(II) and Ir(III) complexes containing functionalised dipyrido[3,2-a:2',3'-c]phenazine (dppz). - Lundin NJ; Walsh PJ; Howell SL; Blackman AG; Gordon KC (Chemistry (Weinheim an der Bergstrasse, Germany), 2008)