Functional assembled structures of anthracene derivatives

Abstract

Structures and properties of novel 5,15-di[4-(5-acetylsulfanylpentyloxy)phenyl] porphyrin derivatives: Density functional theory calculations SCIENCE CHINA Chemistry 53, 2183 (2010); Supramolecular synthesis of coumarin derivatives catalyzed by a coordination-assembled cage in aqueous solution SCIENCE CHINA Chemistry 62, 713 (2019); Self-assembled structures of a semi-rigid polyanion in aqueous solutions and hydrogels SCIENCE CHINA Chemistry 55, 735 (2012); Structures and properties of novel 5,15-di[4-(5-acetylsulfanylpentyloxy)phenyl]porphyrin derivatives: Density functional theory calculations

Population inversion in sodium D2 transition based on sodium-ethane excimer pairs

“…So, the key issue of developing XPNaL is exploring excellent excimer pairs. In our previous work, we expanded the sodium-rare gas pairs to sodiumalkane gas pairs, and studied the absorption coefficients of different excimer pairs, including Na-C 2 H 6 excimer pairs, both experimentally and theoretically [21] .…”

“…where f 10 is the equilibrium fraction, n 0 and n 1 are the population densities on the 3 2 S 1∕2 state and the X 2 Σ þ 1∕2 state, respectively, g 0 or g 1 is the degeneracy factor of the 3 2 S 1∕2 state (2) or the X 2 Σ þ 1∕2 state (2), R 0 is the optimal internuclear separation (0.4518 nm for Na-C 2 H 6 ) [21] , ΔR is the range of distances over which the resonance absorption condition is maintained (0.1 nm) [31] , k b is the Boltzmann constant, T is the temperature of the vapor cell, ΔE 10 is the difference in the potential energy between the collision pair state at R 0 and the unbound state (∼114.4 cm −1 ) [21] , and [C 2 H 6 ] is the ethane concentration (1.94 × 10 −19 cm 3 ).…”