Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 111-24-0, is researched, SMILESS is BrCCCCCBr, Molecular C5H10Br2Journal, Article, Physical Chemistry Chemical Physics called The role of conformational heterogeneity in the excited state dynamics of linked diketopyrrolopyrrole dimers, Author is Bradley, Siobhan J.; Chi, Ming; White, Jonathan M.; Hall, Christopher R.; Goerigk, Lars; Smith, Trevor A.; Ghiggino, Kenneth P., the main research direction is diketopyrrolopyrrole preparation conformation fluorescence excited state electronn transfer.SDS of cas: 111-24-0.
Diketopyrrolopyrrole (DPP) derivatives have been proposed for both singlet fission and energy upconversion as they meet the energetic requirements and exhibit superior photostability compared to many other chromophores. In this study, both time-resolved electronic and IR spectroscopy have been applied to investigate excited state relaxation processes competing with fission in dimers of DPP derivatives with varying linker structures. A charge-separated (CS) state is shown to be an important intermediate with dynamics that are both solvent and linker dependent. The CS state is found for a subset of the total population of excited mols. and it is proposed that CS state formation requires suitably aligned dimers within a broader distribution of conformations available in solution No long-lived triplet signatures indicative of singlet fission were detected, with the CS state likely acting as an alternative relaxation pathway for the excitation energy. This study provides insight into the role of mol. conformation in determining excited state relaxation pathways in DPP dimer systems.
Here is just a brief introduction to this compound(111-24-0)SDS of cas: 111-24-0, more information about the compound(1,5-Dibromopentane) is in the article, you can click the link below.
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis