title: Semiconducting lead-sulfur-organic network solids.
abstract: The reactions of Pb(OAc)2 with 1,2,4,5-benzenetetrathiol, 1,4-benzenedithiol, and benzenehexathiol in ethylenediamine yield bright yellow [Pb2(S2C6H2S2)(en)]n, orange-red [Pb3(SC6H4S)3(en)2]n, and brown [Pb3C6S6]n, respectively. The structures of [Pb2(S2C6H2S2)(en)]n and [Pb3C6S6]n were solved by synchrotron X-ray powder diffraction, while the structure of [Pb3(SC6H4S)3(en)2]n was solved by single-crystal X-ray diffraction. The bonding in [Pb2(S2C6H2S2)(en)]n indicates the presence of "molecular" units, while in [Pb3C6S6]n, the bonding most resembles that in an inorganic solid such as PbS. The differences in bonding are reflected in the optical and electrical properties of the materials; [Pb3C6S6]n is a semiconductor.
authors: Department of Chemistry and Center for Materials Innovation, Washington University, St. Louis, Missouri 63130, USA.
authors: Dayna L
authors: DL
authors: Turner
authors: Thomas P
authors: TP
authors: Vaid
authors: Peter W
authors: PW
authors: Stephens
authors: Kevin H
authors: KH
authors: Stone
authors: Antonio G
authors: AG
authors: DiPasquale
authors: Arnold L
authors: AL
authors: Rheingold