Single crystal field-effect transistor of tetrabenzoporphyrin with one-dimensionally extended columnar packing motif exhibiting efficient charge transport property

5,15-Bis(triisoprpylsilyl)ethynyltetrabenzoporphyrin (TIPS-H2BP) gave one-dimensionally extended columnar packing motif. Single crystal field-effect transistor of free-base TIPS-H2BP exhibited clearly better hole mobility (2.16 cm2 V–1 s–1) than its metal complexes (ca. 0.1 cm2 V–1 s–1), with the efficient charge transports through π–π stacking along tetrabenzoporphyrin units.