301318-53-6Relevant articles and documents
An easy prepared dual-channel chemosensor for selective and instant detection of fluoride based on double Schiff-base
Leng, Yan-Li,Zhang, Jian-Hui,Li, Qiao,Zhang, You-Ming,Lin, Qi,Yao, Hong,Wei, Tai-Bao
, p. 116 - 121 (2016)
A colorimetric and fluorescent dual-channel fluoride chemosensor N,N′-bis (4-diethylaminosalicylidene) hydrazine (sensor S) bearing two imine groups has been designed and synthesized. This structurally simple probe displays rapid response and high selecti
A highly selective fluorescent indicator for copper based on a boron complex
Zheng, Jie,Huang, Fang,Li, Yujin,Ye, Qing,Jia, Jianhong,Han, Liang,Gao, Jianrong
, p. 36 - 40 (2015)
Condensation of 4-(diethylamino)salicylaldehyde with aqueous hydrazine, followed by complexation with BF3·OEt2 gives a fluorescent indicator highly selective for copper. The indicator forms a 2 : 1 complex with Cu2+ and displays a highly sensitive and selective fluorescent quenching action with Cu2+ upon excitation at 440 nm in water/THF (7 : 3, v/v) solution. This action is pH-independent over the range 4.5 pH 9.5.
In situ generated chromophore as the indicator for background-free sensing strategy of hydrazine with high sensitivity with in vitro and in vivo applications
Zhang, Peng,Gong, Yan,Zhang, Qian,Guo, Xinjie,Ding, Caifeng
, p. 5182 - 5189 (2019)
A chromophore is essential to a classic molecular probe, but its intrinsic optical properties can trigger a spectral background, which is considered to produce a negative influence on detection sensitivity. Hence, developing spectral sensing assays with c
Unusual Aggregation/Gelation-Induced Phosphorescence of Propeller-Type Binuclear Platinum(II) Enantiomers
Gou, Fei,Cheng, Jinghui,Zhang, Xiaohong,Shen, Guangyu,Zhou, Xiangge,Xiang, Haifeng
, p. 4862 - 4866 (2016)
Three binuclear cyclometalated PtIIcomplexes, [(ppy)Pt(μ-SA)Pt(ppy)] (ppy = 2-phenylpyridine, SA: salicylaldehyde azine), have been synthesized and characterized. Owing to the blockage of the intramolecular rotation of the bridging SA ligands, all three complexes exhibit propeller-type enantiomers and aggregation-induced phosphorescence (AIP). Interestingly, one complex with –NEt2groups instead of long alkyl chains, amide, urea peptides, cholesterol, sugar, or steroidal groups was found to show strong phosphorescence enhancement gated by the gelation process. This unusual gelation behavior is rarely encountered, as the metallogel has no intermolecular hydrogen bonding or Pt–Pt interactions. We attribute the driving force of this gelation-induced phosphorescence (GIP) to the propeller-type structure, optimally balanced solubility of –NEt2groups, enantiomer-induced π–π stacking interactions, and strong multiple intermolecular H–C, H–O, and H–H interactions.
A selective hydrolytic and restructuring approach through a Schiff base design on a coumarin platform for “turn-on” fluorogenic sensing of Zn2+
Pandey, Abha,Asthana, Sharad Kumar,Prakash, Anand,Roy, Jagat Kumar,Tiwari, Ida,Upadhyay
, p. 2068 - 2076 (2019/02/12)
A new Schiff base, CMD, designed based on a coumarin platform was synthesized and fully characterized through single crystal X-ray diffraction studies. CMD underwent selective Zn2+-triggered hydrolysis in ethanolic medium followed by restructur
Ratiometric fluorescent pH probes based on aggregation-induced emission-active salicylaldehyde azines
Ma, Xiaofeng,Cheng, Jinghui,Liu, Jiaoyan,Zhou, Xiangge,Xiang, Haifeng
, p. 492 - 500 (2015/02/02)
A series of luminescent salicylaldehyde azines (SAs) containing different electron-accepting substituents (-NO2, -F, and -Cl), electron-donating substituents (-OMe and -NEt2), and a π-extended system (naphthalene ring) are prepared for the application of fluorescent pH probes. These SAs inheriting the aggregation-induced emission (AIE) features display strong blue, green, and red fluorescence with large Stokes shifts in water and solid medium. Combining the advantages of AIE and the chemical reactivity of phenol towards OH-/H+, most of the SAs can be used as ratiometric fluorescent pH probes with a broad pH range (2-14) in water and solid medium (test paper). Moreover, the inherent relationship between their chemical structures and AIE properties/pKa values (7.5-13.3) is studied, which provides unequivocal insights into the design of AIE-active dyes and their applications. This journal is
A zinc(ii) directed triple-stranded helicate incorporating a nine membered metallamacrocycle: Supramolecular cylinders mimicking P1 nuclease
Mishra, Rakesh K.,Upadhyay,Shukla, Sachin,Mishra
supporting information; experimental part, p. 4238 - 4240 (2012/05/20)
We report herein the first small molecule based self-assembled fluorescent trinuclear Zn(ii) supramolecular cylindrical motif as a structural and functional model of the active site of P1 nuclease. The DNA binding of the same was investigated through UV-V
Colorimetric "Naked-eye" highly selective detection of Cu(II) ion by a simple chemosensor: An experimental and theoretical modeling
Dalapati, Sasanka,Jana, Sankar,Guchhait, Nikhil
supporting information; experimental part, p. 279 - 281 (2011/05/13)
The selectivity and sensitivity of N,N'-bis(4-diethylaminosalicylidene) hydrazine (sensor 1) toward Cu2+ ion have been established both by distinct "naked-eye" color change as well as UVvis spectrophotometry. Sensor 1 formed 1:1 complex with Cu2+ ion where the most stable s-trans form of the sensor is trapped in the high energy conformer. Single-crystal X-ray structure of sensor 1 supports its s-trans conformation. Theoretical calculations support well the experimental result.
