We participated in the 2025 Inorganic Chemistry Symposium of Korean Chemical Society held in the Hanwha Resort Haeundae (July 3–4)<Poster>J​ihye Baek: Highly Efficient Near-Infrared-to-Green Photon Upconversion from Ion PairSohee Lee: Solvatochronic Photocatalysis for Intermolecular [2+2] Cycloaddition Reaction of Unactivated StyrenesSeung Beom Cheon: Photoluminescent Two-Coordinate Gold Complexes Based on Abnormal N-Heterocyclic Carbenes