Dithienylethene metallodendrimers with high photochromic efficiency

Amplified photomodulation of a bis(dithienylethene)-substituted phosphine

“…18 By contrast, the use of much longer linkers favors multiple DAE photoswitching, though at the cost of preventing through-bond electronic communication between nearby photochromic units. 14,19,20…”

An Aggregation‐Induced Emission‐Based Fluorescence Turn‐On Probe for Efficient Detection of HS− in Water, Wine, and Living Cells

“…The classical H 2 S detection techniques include colorimetry approach, electrochemical technique, gas chromatography and sulfide precipitation, but these methods often require expensive instruments, well trained operators, cumbersome sample pretreatment, long consumption time and so on, which have limited their wide applications. Fluorescence sensing and imaging using small molecule fluorescent probes, in comparison with those traditional techniques, have the advantages of simple operation, high selectivity and sensitivity, convenient real‐time monitoring, fast response and low cost of detection, and have now become one of the most attractive and extensively studied detection methods [11–13] . Nowadays, the development of fluorescent probes for qualitative and quantitative detection of H 2 S has drawn much attention, and many interesting strategies have been reported by taking advantage of different chemical sensing mechanisms, like reducing azide or nitrite, [14–18] nucleophilic addition of H 2 S, [19–21] thiolysis of H 2 S to leaving groups, [22–24] and removal of Cu 2+ from Cu 2+ complex [25–27] .…”

“…Fluorescence sensing and imaging using small molecule fluorescent probes, in comparison with those traditional techniques, have the advantages of simple operation, high selectivity and sensitivity, convenient real-time monitoring, fast response and low cost of detection, and have now become one of the most attractive and extensively studied detection methods. [11][12][13] Nowadays, the development of fluorescent probes for qualitative and quantitative detection of H 2 S has drawn much attention, and many interesting strategies have been reported by taking advantage of different chemical sensing mechanisms, like reducing azide or nitrite, [14][15][16][17][18] nucleophilic addition of H 2 S, [19][20][21] thiolysis of H 2 S to leaving groups, [22][23][24] and removal of Cu 2 + from Cu 2 + complex. [25][26][27] Although these reports are elegant and impressive, most of the applied fluorescent probes usually suffer from one or more of the drawbacks such as aggregation-caused quenching (ACQ) effect, long reaction times (> 10 min), poor photostability, strong background fluorescence interference, and poor test results in actual sample detection, which have greatly restricted their practical application.…”

Multicolor emission based on a N, N′—Disubstituted dihydrodibenzo [a, c] phenazine crown ether macrocycle

“…Doping ( Nie et al, 2022 ) or hybridizing ( Cui et al, 2017 ) of different fluorophores are effective methods to generate multicolor emission, these systems usually requires more than a single excitation wavelength or stimulation methods to achieve multicolor emissions. However, many chemical systems exhibiting multicolor emission have been constructed in the presence of only one chromophore by the modulation of host-guest interaction ( Zhang et al, 2016 ; Li et al, 2018a ; Wang et al, 2020a ; Wang et al, 2020b ; Sun et al, 2020 ; Wu et al, 2020 ; Zhang et al, 2022c ; Yu et al, 2022 ), pH ( Li et al, 2018b ; Bai et al, 2019 ; Radunz et al, 2019 ; Liu et al, 2021 ), hydrogen bonding ( Wu et al, 2019 ; Tao et al, 2020 ), metal coordination ( Lee et al, 2017 ), and other methods ( Feng et al, 2015 ; Huang et al, 2015 ; Shi et al, 2018 ; Wang et al, 2019 ; Naren et al, 2020 ; Guo et al, 2021 ; Wang et al, 2022a ; Wang et al, 2022b ; Qiu et al, 2022 ; Zong et al, 2022 ). Although progresses have been made in the study of single-chromophore multicolor emission, it is still of great value to develop new and controllable multicolor emission systems for a wider range of application scenarios.…”