104-67-6, Name is Undecanoic gamma-Lactone, molecular formula is C11H20O2, Safety of Undecanoic gamma-Lactone, belongs to tetrahydrofurans compound, is a common compound. In a patnet, author is Sujith, Surendran, once mentioned the new application about 104-67-6.
Synthesis and Delayed Fluorescent Properties of p-Nido-Carborane-Triarylborane Conjugates with a Methyl-Substituted Phenylene Linker
A series of p-nido-carborane-triarylborane conjugates (nido-1-3) in which a methyl group is introduced at the ortho-position to the carborane cage in the phenylene linker was prepared and characterized. All compounds exhibit broad low-energy absorptions (lambda(abs) = ca. 350-400 nm) attributable to the intramolecular charge transfer transition from the nido-carborane donor to the (MePh)BMes(2) acceptor. Electrochemical studies confirm that oxidation occurs at the nido-carborane while the boryl moieties are responsible for the reduction. All nido-compounds show broad green emissions in tetrahydrofuran (THF) with good photoluminescence (PL) quantum yields (phi(PL) = 24%-78%). In particular, different from the almost non-thermally activated delayed fluorescence (TADF) properties of unsubstituted para-conjugates, the transient PL decay curves of nido-1-3 show the existence of weak TADF (tau(d) = 0.9-1.4 mu s in THF). The TADF properties are further supported by the very small singlet-triplet energy splitting below 0.15 eV and are also observed in poly(methyl methacrylate) (PMMA) films doped with nido-1-3.
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Reference:
Tetrahydrofuran – Wikipedia,
,Tetrahydrofuran | (CH2)3CH2O – PubChem