Mauck, Catherine M. et al. published their research in ChemPhotoChem in 2018 | CAS: 13669-10-8

Ethyl 3-oxo-3-(thiophen-2-yl)propanoate (cas: 13669-10-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Product Details of 13669-10-8

Charge-Transfer Character in a Covalent Diketopyrrolopyrrole Dimer: Implications for Singlet Fission was written by Mauck, Catherine M.;Bae, Youn Jue;Chen, Michelle;Powers-Riggs, Natalia;Wu, Yi-Lin;Wasielewski, Michael R.. And the article was included in ChemPhotoChem in 2018.Product Details of 13669-10-8 This article mentions the following:

Diketopyrrolopyrrole (DPP) is a strongly absorbing, photostable chromophore that can undergo singlet fission (SF), a photophys. process that promises to significantly enhance solar-cell performance. In the solid state, DPP packs in a herringbone arrangement that maximizes intermol. donor-acceptor interactions, suggesting that charge-transfer (CT) states play a role in DPP SF. In order to characterize intermol. DPP CT states in mol. assemblies, we have synthesized a covalent DPP dimer bridged by a xanthene linker, which places two thiophene-substituted DPPs (TDPPs) in a cofacial arrangement that mimics chromophore π-π stacking in the thin film. After photoexcitation in polar solvents, symmetry-breaking charge separation forms the fully charge separated TDPP+.-TDPP-. ion-pair state. In nonpolar solvents, charge separation is incomplete leading to the TDPPδ+-TDPPδ- CT state, which is in pseudoequil. with the relaxed S1S0 state observed by transient absorption and emission spectroscopy. This study highlights the importance of intramol. coupling as well as the importance of entropy to promoting SF in chromophore dimers for which SF is endo- or isoergic. In the experiment, the researchers used many compounds, for example, Ethyl 3-oxo-3-(thiophen-2-yl)propanoate (cas: 13669-10-8Product Details of 13669-10-8).

Ethyl 3-oxo-3-(thiophen-2-yl)propanoate (cas: 13669-10-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Product Details of 13669-10-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics