Humphreys, Joshua; Pop, Flavia; Hume, Paul A.; Murphy, Alanna S.; Lewis, William; Davies, E. Stephen; Argent, Stephen P.; Amabilino, David B. published an article in 2021, the title of the article was Solid state structure and properties of phenyl diketopyrrolopyrrole derivatives.Related Products of 123-25-1 And the article contains the following content:
In this study, the single crystal X-ray structures of diketopyrrolopyrroles (DPPs) I [R1 = n-hexyl, (S)-EtCHMeCH2, t-BuOCO; R2 = H, HO, MeO, t-BuOCO2, 2-tetrahydropyranyloxy] is reported to show how subtle changes in the substituent chains at side or end positions of the chromophore can led to very different packing. The effects of the nature of both the alkyl chain and the aryl unit on the optical properties in solid and solution states have been studied. Importantly, for the three families of N-substituted compounds studied, the structures were changed by the conformation of the mols. and were apparently dominated by crystal packing effects where edge-to-face interactions were favored rather than π stacking, with only one of the compounds showing a flat form, promoted by intermol. contacts between the aromatic regions. Therefore the twist between DPP and Ph units in crystals of DPPs resulted from edge-to-face interactions (rather than steric interactions between the N-substituent and the protons attached to the aromatic ring) that overcome in more extended structures. Hydrogen bonding dominated the packing to generate chains of DPP units for phenol derivatives Remote bulky groups affected the core conformation. The emission of the materials as thin films was dominated by local effects in the packing of the materials that were unique for each case as the structures are distinct from one another. Charge mobility (as calculated from the crystal structures) was not favored because of twisted conformations and large displacement, but sometimes high emission and large Stokes shift made the materials interesting for other purposes, such as light emitters. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).Related Products of 123-25-1
The Article related to phenyl diketopyrrolopyrrole preparation chromophore crystal structure photophys electronic, Heterocyclic Compounds (More Than One Hetero Atom): Fused-Ring Systems With Two Or More Hetero Atoms, No More Than One Hetero Atom Per Ring and other aspects.Related Products of 123-25-1
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