Disilanyl double-pillared bisternaphthyl (SiDPBT): synthesis and interfused packing structures with herringbone and π-stack motifs.
A silacyclophane molecule with two disilanyl pillars and two oligoarylene units was synthesized. The molecule was packed in a single crystal with a new motif interfusing π-stack and herringbone packing structures. The hole transporting ability of the solid was revealed by using the flash-photolysis time-resolved microwave conductivity method. The molecular structure, albeit a singly-bonded arylene macrocycle, was rigidified by the unique packing array, which favorably contributed to the hole transporting ability of the solid via the small reorganization energy through the charge transport.
Department of Chemistry, Advanced Institute for Materials Research and ERATO Isobe π-Integration Project, Tohoku University, Aoba-ku, Sendai 980-8578 (Japan), Fax: (+81) 22-795-8586; Present address: National Institute for Materials Science (NIMS), Tsukuba 305-0044 (Japan). nakanishi.waka@nims.go.jp.
Waka
W
Nakanishi
Naoto
N
Matsuyama
Daisuke
D
Hara
Akinori
A
Saeki
Shunpei
S
Hitosugi
Shu
S
Seki
Hiroyuki
H
Isobe
crystal engineering; cyclophanes; semiconductors; silicon; stacking interactions