Composition for use in an organic light-emitting device, the composition having a fluorescent light-emitting material and a triplet-accepting material subject to the following energetic scheme: 2×T.sub.1A>S.sub.1A>S.sub.1E, or T.sub.1A+T.sub.1E>S.sub.1A>S.sub.1E in which: T1A represents a triplet excited state energy level of the triplet-accepting material; TIE represents a triplet excited state energy level of the light-emitting material; S.sub.1A represents a singlet excited state energy level of the triplet-accepting material; and S.sub.1E represents a singlet excited state energy level of the light-emitting material; and in which light emitted by the composition upon excitation includes delayed fluorescence.

Composition for use in an organic light-emitting device, the composition having a fluorescent light-emitting material and a triplet-accepting material subject to the following energetic scheme: 2×T.sub.1A>S.sub.1A>S.sub.1E, or T.sub.1A+T.sub.1E>S.sub.1A>S.sub.1E in which: T1A represents a triplet excited state energy level of the triplet-accepting material; TIE represents a triplet excited state energy level of the light-emitting material; S.sub.1A represents a singlet excited state energy level of the triplet-accepting material; and S.sub.1E represents a singlet excited state energy level of the light-emitting material; and in which light emitted by the composition upon excitation includes delayed fluorescence.

The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photo-redox catalyst that is activated by infrared light.

The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photo-redox catalyst that is activated by infrared light.

A solid-supported Pd catalyst is suitable for C—C bond formation, e.g., via Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions, with a support that is reusable, cost-efficient, regioselective, and naturally available. Such catalysts may contain Pd nanoparticles on jute plant sticks (GS), i.e., Pd@GS, and may be formed by reducing, e.g., K.sub.2PdCl.sub.4 with NaBH.sub.4 in water, and then used this as a “dip catalyst.” The dip catalyst can catalyze Suzuki-Miyaura and Mizoroki-Heck cross coupling-reactions in water. The catalysts may have a homogeneous distribution of Pd nanoparticles with average dimensions, e.g., within a range of 7 to 10 nm on the solid support. Suzuki-Miyaura cross-coupling reactions may achieve conversions of, e.g., 97% with TOFs around 4692 h.sup.−1, Mizoroki-Heck reactions with conversions of, e.g., a 98% and TOFs of 237 h.sup.−1, while the same catalyst sample may be used for 7 consecutive cycles, i.e., without addition of any fresh catalyst.

A solid-supported Pd catalyst is suitable for C—C bond formation, e.g., via Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions, with a support that is reusable, cost-efficient, regioselective, and naturally available. Such catalysts may contain Pd nanoparticles on jute plant sticks (GS), i.e., Pd@GS, and may be formed by reducing, e.g., K.sub.2PdCl.sub.4 with NaBH.sub.4 in water, and then used this as a “dip catalyst.” The dip catalyst can catalyze Suzuki-Miyaura and Mizoroki-Heck cross coupling-reactions in water. The catalysts may have a homogeneous distribution of Pd nanoparticles with average dimensions, e.g., within a range of 7 to 10 nm on the solid support. Suzuki-Miyaura cross-coupling reactions may achieve conversions of, e.g., 97% with TOFs around 4692 h.sup.−1, Mizoroki-Heck reactions with conversions of, e.g., a 98% and TOFs of 237 h.sup.−1, while the same catalyst sample may be used for 7 consecutive cycles, i.e., without addition of any fresh catalyst.

A catalyst includes a carrier, and a metal obtained by reducing a metal ion supported on the carrier 1) in a supercritical state or 2) in a polar organic solvent, wherein the carrier is an inorganic porous body having a hierarchical porous structure. By employing the catalyst, it is possible to exhibit better catalytic activity than a conventional catalyst. Heat generation and spontaneous ignition are prevented because no organic porous body is used.

A catalyst includes a carrier, and a metal obtained by reducing a metal ion supported on the carrier 1) in a supercritical state or 2) in a polar organic solvent, wherein the carrier is an inorganic porous body having a hierarchical porous structure. By employing the catalyst, it is possible to exhibit better catalytic activity than a conventional catalyst. Heat generation and spontaneous ignition are prevented because no organic porous body is used.

This invention relates to a stilbene derivative and a method of preparing the same, and more particularly to a novel stilbene derivative for inhibiting the function of cyclophilin, which is effective at the prevention of cyclophilin-related diseases or at the treatment of symptoms of such diseases, and to a method of preparing the same.

This invention relates to a stilbene derivative and a method of preparing the same, and more particularly to a novel stilbene derivative for inhibiting the function of cyclophilin, which is effective at the prevention of cyclophilin-related diseases or at the treatment of symptoms of such diseases, and to a method of preparing the same.