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Disilanyl double-pillared bisternaphthyl (SiDPBT): synthesis and interfused packing structures with herringbone and
Waka Nakanishi1, Naoto Matsuyama, Daisuke Hara
1Department 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.
Abstract:
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.
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