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Updated: Apr 6, 2026

Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates
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Reactive Vapor Deposition of Conjugated Polymer Films on Arbitrary Substrates

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調節可能なキノイド化とエネルギー帯のギャップの減少により,多面的なRegioregular Oligo ((チエノ[3,4-b]チオフェン) が可能になる

Feng Liu1, Guzmán L Espejo2, Shuhai Qiu1

  • 1†Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.

Journal of the American Chemical Society
|July 18, 2015
PubMed
まとめ

研究者は有機電子機器のための新しいオリゴチエノ[3,4-b]チオフェンを開発した. これらの材料は調節可能なエネルギー帯の隙間とユニークな色を提供し,先進的な電色装置を可能にします.

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Preparation and Reactions of Thiols02:33

Preparation and Reactions of Thiols

Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
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The stereochemistry of electrocyclic reactions is strongly influenced by the orbital symmetry of the polyene HOMO. Under thermal conditions, the reaction proceeds via the ground-state HOMO.
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
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The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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