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- W2378802193 abstract "Two conjugated D-A compounds,2-dicyanovinlydithieno[3,2-b:2′,3′-d]thiophene(DCTT) and 2-dicyanovinlydithieno[2,3-b:3′,2′-d]thiophene(DCST) were synthesized and characterized.The relationship between the emission properties and molecular structures was studied by investigation of solvent effect for DCTT and DCST.Both title compounds show intramolecular charge transfer(ICT) state emission.With the increase of polarity of solvents,DCST shows ICT emission with strong red shift and larger Stokes shift.However,DCTT shows weak red shift but negative solvatochromism: an increase of quantum yields from ICT emission,which may due to the Proximity effect between the transitions of π-π* and n-π*.Such emission difference between DCTT and DCST shows that the ICT state could be occurred in both compounds,but charge separation might not be formed easily between moiety of thieno[3,2-b:2′,3′-d]thiophene and moiety of dicyanovinyl in DCTT,however,formed easily between moiety of thieno[2,3-b:3′,2′-d]thiophene and moiety of dicyanovinyl in DCST." @default.
- W2378802193 created "2016-06-24" @default.
- W2378802193 creator A5070327150 @default.
- W2378802193 date "2009-01-01" @default.
- W2378802193 modified "2023-09-23" @default.
- W2378802193 title "The Spectroscopic Behavior of Dicyanovinyldithienothiophenes" @default.
- W2378802193 hasPublicationYear "2009" @default.
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