Other systems of RIV-type AIE emitters have also been reported. Zhao and his contemporaries synthesized NBN-phenalenes and half-NBN-phenalenes in pentatomic and hexatomic structures (Figure ). The pentameric NBN flourishes with planar geometry and comprehensive aromaticity, resonating with the attributes of orthodox luminescent entities. Conversely, the hexameric NBN structure basks in a contorted NBN center ring and anti-aromaticity. The aggregate state engenders a curtailment of the hexameric ring's vibration, facilitating the embodiments of the archetypal AIEE characteristics. Comparatively, the HOMO/LUMO energy gap of sixmembered NBN systems is usually smaller than the corresponding five-membered NBN gap (Figure ). As illustrated in Figure , upon the surmounting of the fw of THF/water beyond 70%, aggregation ensues, bolstering luminescence at 480 nm, which indicates AIEE characteristics. During the excited state dynamics, a multiple-step sequence model (R* → I* → P* → X →S0) is adopted to analyze the behavior (Figure ). Here, X represents an excimer in the excited state, and excited-state aromatization acts as the driving force for excimer formation in the PISP process. Notably, fused sixmembered NBN rings show increased Harmonic Oscillator Model of Aromaticity (HOMA) and Multicenter Bond order (MCBO) values, suggesting an increase in aromaticity from R* to P*. Quinolines and Isoquinolines with a 10π electron framework are pivotal in serving a multitude of medicinal roles from hypertensive to bactericidal and carcinostatic applications, owing to their economical, prolific, and obtainable pyridine constituents. However, the reportage of their latent AIE properties remains scant. He and coworkers reported the new RIV-type AIE system based on an 8πelectron quinolizine (QLZ) consisting of two fused rings . The two noncoplanar rings (Figure ) exhibit non-aromatic features in the ground state and can undergo geometric changes to a planar form upon photoexcitation, leading to luminescence through aggregation-restricted vibration (Figure ).