Five-Order-of-Magnitude Reduction of the Triplet Lifetimes of N-Heterocycles by Complexation to a Trinuclear Mercury Complex [J. Am. Chem. Soc. 2005, 127, 12166−12167].

Synthesis, structures, and luminescence properties of ternary supramolecular hydrogen‐bonded complexes involving [(o‐C6F4)Hg]3, carbazole, and a Lewis base

“…Examination of its emission spectra recorded at both temperatures indicates that the observed luminescence corresponds to the phosphorescence of carbazole [24]. As previously proposed for the N-methylcarbazole adduct of 1 [3], the observed phosphorescence is a direct result of the external mercury heavy atom effect which promotes intersystem spin crossing from the S 1 to the T 1 state of the carbazole. At low temperature (77 K), adducts 3 and 4 also emit blue light with emission spectra which also corresponds to the triplet emission of carbazole (Figs.…”

“…Trimeric perfluoro-ortho-phenylene mercury (1) has been shown to interact with aromatic substrates to form supramolecular binary stacks, where molecules of 1 and the arene alternate [1][2][3][4][5][6][7][8]. In these adducts, as a result of the close proximity of three mercury centers, the arene experiences an intense spin orbit perturbation resulting in room temperature phosphorescence of the arene [1][2][3][4].…”

“…In these adducts, as a result of the close proximity of three mercury centers, the arene experiences an intense spin orbit perturbation resulting in room temperature phosphorescence of the arene [1][2][3][4]. Although the photophysics of adducts involving 1 has been extensively studied, the chemical consequences of complexation with 1 requires more attention.…”

Aggregation Induced Phosphorescence in the Main Group

“…The emissive nature of the structurally fascinating perfluoroortho-phenylene mercury trimer [Hg(o-C 6 F 4 )] 3 (1) and its stacked 1 : 1 complexes with arenes (Scheme 1; complexes 2-15) was studied by Gabbaï and coworkers. [27][28][29][31][32][33] Solutions of 1 in CH 2 Cl 2 were found to absorb maximally at 275 nm but no emission was observed upon excitation. However, in the crystalline state at 77 K, 1 was found to emit orange luminescence (l ex = 375 nm) with a broad emission profile that extends up to 600 nm.…”

Intermolecular interactions in polymorphs of the cyclic trimeric perfluoro-ortho-phenylene mercury from geometric, energetic and AIM viewpoints: DFT study and Hirshfeld surface analysis

“…In these co-crystals, the guest molecules are sandwiched between mutually parallel neighbouring macrocycles that lead to forming of the socalled binary stacks as a main structural motif. This fact was proposed to be the reason of their photophysical properties [14,20,21,[28][29][30][31]. Typically, host-guest complexes of 1 are formed by means of weak secondary interactions that can be reliably detected only in a crystal.…”