974 resultados para (H2S HS- S2-)
Resumo:
[Carl Oestreich]
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von C. Oestreich
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Bern, Univ., Diss., 1911
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In this paper, a new cruciform donoracceptor molecule 2,2'-((5,5'-(3,7-dicyano-2,6-bis(dihexylamino)benzo[1,2-b:4,5-b']difuran-4,8-diyl)bis(thiophene-5,2-diyl))bis (methanylylidene))dimalononitrile (BDFTM) is reported. The compound exhibits both remarkable solid-state red emission and p-type semiconducting behavior. The dual functions of BDFTM are ascribed to its unique crystal structure, in which there are no intermolecular face-to-face interactions, but the molecules are associated by intermolecular CN and H-bonding interactions. Firstly, BDFTM exhibits aggregation-induced emission; that is, in solution, it is almost non-emissive but becomes significantly fluorescent after aggregation. The emission quantum yield and average lifetime are measured to be 0.16 and 2.02 ns, respectively. Crystalline microrods and microplates of BDFTM show typical optical waveguiding behaviors with a rather low optical loss coefficient. Moreover, microplates of BDFTM can function as planar optical microcavities which can confine the emitted photons by the reflection at the crystal edges. Thin films show an air-stable p-type semiconducting property with a hole mobility up to 0.0015 cm2V1s1. Notably, an OFET with a thin film of BDFTM is successfully utilized for highly sensitive and selective detection of H2S gas (down to ppb levels).
Resumo:
von Leon Kellner
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Besetzung: Coro S, Coro A, Coro T, Coro B, Vl 1 2, Va, Trp 1 2, Timp, Org
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Digitalisat der Ausg. Zulbak, 1790/91
Resumo:
[Carl Oestreich]
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[Carl Oestreich]
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von Bodo Wolf
Resumo:
[Carl Oestreich]
Resumo:
[Carl Oestreich]