Figures Above: (Left) STM Image of Naphthalocyanine film on graphite at T = 50 K (Vacuum-Solid Interface). Sample polarity is reversed twice going from bottom to top showing tunneling into empty states in the middle and filled states at top and bottom. (1.83 V, 83 pA, 25x25 nm2). The dark spot in the middle is a missing molecule (defect in the film). (Right) Naphthalocyanine molecular structure.