A solid-state (single crystal X-ray, IR, DSC) and solution (H-1 NMR nuclear Overhauser effect (NOE) and longitudinal relaxation times (T-1)) study of 4,4'-bis(butylthio)-2,2'-bithiophene is reported. The two thienyl rings are coplanar and in an anti orientation in the solid state, whereas a low amount of syn form is present in solution. The n-butylthio chain adopts a fully extended, nearly idealized, anti conformation in the crystal, with all the non-H atoms of the whole molecule strictly coplanar, despite the molecular length, but does not show a preferred orientation in solution. The observed changes on passing from the solid to the solution state are indications of the potential solvatochromic and thermochromic properties of beta-butylthio-substituted oligomers and polymers.

Alkylthio-substituted oligothiophenes: The influence of the alkyl chain length on the solid-state and solution properties of 4,4'-bis(butylthio)-2,2'-bithiophene / Antolini, Luciano; Folli, Ugo; F., Goldoni; Iarossi, Dario; Mucci, Adele; Schenetti, Luisa. - In: ACTA POLYMERICA. - ISSN 0323-7648. - STAMPA. - 47:(1996), pp. 265-268.

Alkylthio-substituted oligothiophenes: The influence of the alkyl chain length on the solid-state and solution properties of 4,4'-bis(butylthio)-2,2'-bithiophene

ANTOLINI, Luciano;FOLLI, Ugo;IAROSSI, Dario;MUCCI, Adele;SCHENETTI, Luisa
1996

Abstract

A solid-state (single crystal X-ray, IR, DSC) and solution (H-1 NMR nuclear Overhauser effect (NOE) and longitudinal relaxation times (T-1)) study of 4,4'-bis(butylthio)-2,2'-bithiophene is reported. The two thienyl rings are coplanar and in an anti orientation in the solid state, whereas a low amount of syn form is present in solution. The n-butylthio chain adopts a fully extended, nearly idealized, anti conformation in the crystal, with all the non-H atoms of the whole molecule strictly coplanar, despite the molecular length, but does not show a preferred orientation in solution. The observed changes on passing from the solid to the solution state are indications of the potential solvatochromic and thermochromic properties of beta-butylthio-substituted oligomers and polymers.
47
265
268
Alkylthio-substituted oligothiophenes: The influence of the alkyl chain length on the solid-state and solution properties of 4,4'-bis(butylthio)-2,2'-bithiophene / Antolini, Luciano; Folli, Ugo; F., Goldoni; Iarossi, Dario; Mucci, Adele; Schenetti, Luisa. - In: ACTA POLYMERICA. - ISSN 0323-7648. - STAMPA. - 47:(1996), pp. 265-268.
Antolini, Luciano; Folli, Ugo; F., Goldoni; Iarossi, Dario; Mucci, Adele; Schenetti, Luisa
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/310581
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