Synthesis, crystal structure, and vibrational and magnetic properties of Co(II) and Hg(II) complexes with an 8-hydroxyquinoline unit

Zero‐dimensional Hybrid Antimony Halide with Intrinsic Cyan Light Emission

“…The decay curves of [HMHQ] 2 SbCl 5 ⋅ 2H 2 O are fitted by one‐exponential function giving average lifetime of 31.2 ns at 300 K and 51.2 ns at 80 K, respectively, which indicate the single relaxation pathway in the radiative recombination process (Figure 2d). To quantitatively evaluate the PL emission intensity, the PLQY was measured and the result showed a promising value of 18.92% at 300 K, which is comparable with some blue light emitting 0D hybrid halides, such as (C 6 N 2 H 16 Cl) 2 SnCl 6 (8.1%), [BAPrEDA]PbCl 6 ⋅ (H 2 O) 2 (21.28%) and (Bmpip) 2 PbBr 4 (24%) (Figure S4) [31–34] …”

“…[29][30] S4). [31][32][33][34] To confirm the PL nature of the cyan emission, varied wavelength dependent PLE and PL spectroscopy were preliminarily performed and no spectral difference was observed for [HMHQ] 2 SbCl 5 • 2H 2 O, corresponding to one dominant emission center in the 3D consecutive PL/PLE correlation map (Figure 3a and S5). Additionally, we also compare the PL emission spectra of bulk crystals and microscale powders for [HMHQ] 2 SbCl 5 • 2H 2 O (Figure 3b).…”

“…[30] Especially, the metal complex based on 8-hydroxyquinoline has attracted intensive interest as luminescent material in optoelectronic application due to excellent electron transport, high fluorescence efficiency, facile assembly process and higher thermal stability, etc. [31] Inspired by the outstanding luminescent property of HQ, we herein select a HQ derivantof 2-methyl-8hydroxyquinoline (MHQ) as cationic chromophore and prepare one new 0D hybrid Sb-based halide of [HMHQ] O exhibit intense cyan emission with a relatively high PLQY of 18.92% arising from the electron transition in organic cations. This work not only provides a new structural prototype to solidly validate the pivotal role of organic components but also paves a new way to rationally design the PL performance of hybrid metal halides.…”

“…As we known, 8‐hydroxyquinoline (HQ) has been reported as one kind of organic light‐emitting material since 1987 [30] . Especially, the metal complex based on 8‐hydroxyquinoline has attracted intensive interest as luminescent material in optoelectronic application due to excellent electron transport, high fluorescence efficiency, facile assembly process and higher thermal stability, etc [31] . Inspired by the outstanding luminescent property of HQ, we herein select a HQ derivantof 2‐methyl‐8‐hydroxyquinoline (MHQ) as cationic chromophore and prepare one new 0D hybrid Sb‐based halide of [HMHQ] 2 SbCl 5 ⋅ 2H 2 O via solvothermal reaction.…”

Synthesis of New Homopiperazine-1.4-Diium Tetrachloridromercurate (II) Monohydrate (C5H14N2)[HgCl4]·H2O, Crystal Structure, Hirshfeld Surface, Spectroscopy, Thermal Analysis, Antioxidant Activity, Electric and Dielectric Behavior

“…Hg 2+ ions have a wide range of potential applications in the paper industry, paints, and preservation of mercury (II) compounds. Despite these advantages in terms of potential applications in various fields, the formation of polymers containing Hg 2+ ions is disproportionately sparse in comparison to Zn 2+ and Cd 2+ metals [7][8][9][10][11][12][13][14][15][16][17][18].…”