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Beilstein J. Nanotechnol. 2011, 2, 405–415, doi:10.3762/bjnano.2.46
Figure 1: Nine possible constitutional BTP isomers with the four already described in literature (in red) [6,7] an...
Scheme 1: Synthetic pathway to BTPs (1–5). i) Cu2O, isoamylnitrite, benzene, 100 °C, 3 h; ii) (1-ethoxy)-viny...
Figure 2: The synthetically unavailable 3,2'-BTP (left), which is representative of the other inaccessible BT...
Scheme 2: Synthetic pathway to PhSpPys (12–16). i) Cu2O, isoamylnitrite, benzene, 100 °C, 3 h; ii) (1-ethoxy)...
Figure 3: a) 15 × 15 nm2 STM image (Iset = 14 pA, Vset = −0.64 V) of 2,2'-BTP (5) at the HOPG/TCB interface [a...
Figure 4: Hydrogen bonding motif of 2,2'-BTP (5) (left) and of 2,4'-BTP (2) [6,7] (right) found experimentally; th...
Figure 5: Adsorbate structures of 2,4'-BTP (2) (left) and 2,2'-BTP (5) (right) in the square symmetric struct...
Figure 6: a) 15 × 15 nm2 STM image (Iset = 3.41 nA, Vset = −660 mV) of 2,2'-PhSpPy (14) at the HOPG/TCB inter...
Figure 7: a) 15 × 15 nm2 STM image (Iset = 14.5 pA, Vset = −610 mV) of 3,3'-PhSpPy (15) at the HOPG/TCB inter...
Figure 8: Electronic properties for 3,3'-BTP (3) (top) and 3,3'-PhSpPy (15) (bottom). (a) Electrostatic poten...
Figure 9: a) 16 × 16 nm2 STM image (Iset = 2.1 nA, Vset = −0.60 V) of 2,3'-PhSpPy (13) at the HOPG/TCB interf...
Figure 10: a) 15 × 15 nm2 STM image (Iset = 2.51 nA, Vset = −600 mV) of 4,3'-PhSpPy (16) at the HOPG/TCB inter...
Figure 11: a) 15 × 15 nm2 STM image (Iset = 23.5 pA, Vset = −580 mV) of 2,4'-PhSpPy (12) at the HOPG/TCB inter...