3291-00-7Relevant articles and documents
A coumarin-based sensitive and selective fluorescent sensor for copper(II) ions
Yeh, Jiun-Ting,Chen, Wei-Chieh,Liu, Shi-Rong,Wu, Shu-Pao
, p. 4434 - 4439 (2014)
A new coumarin-derived fluorescent probe (1) exhibited significant fluorescence quenching in the presence of Cu2+ ions. Other metal ions, e.g. Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg2+, K+, Mg 2+, Mn2+, Ni2+, Pb2+, and Zn 2+, produced only minor changes in the fluorescence of chemosensor 1. The binding ratio of the chemosensor-Cu2+ complexes was found to be 2 : 1, according to Job plot experiments. The association constant (K a) for Cu2+ binding with chemosensor 1 was found to be 9.56 × 109 M-2. The maximum fluorescence quenching caused by Cu2+ binding with chemosensor 1 occurred over a pH range of 5-9. Moreover, fluorescence microscopy experiments showed that chemosensor 1 could be used as a fluorescent probe for detecting Cu2+ in living cells. the Partner Organisations 2014.
Salicylhydrazone ligands for enantioselective addition of diethylzinc to aldehydes
Arai, Takayoshi,Endo, Yoko,Yanagisawa, Akira
, p. 165 - 169 (2007)
A family of chiral salicylhydrazones was designed and synthesized for application in asymmetric catalysis. The ability of newly prepared binaphthyl-containing salicylhydrazones as the chiral ligand was examined in the addition of diethylzinc to aldehyde, with the desired product obtained in up to 80% ee.
Synthesis and characterization of hydrazone and azine derivatives of bis(cyclopentadienyI) titanium(IV)
Kaushik, Narender Kumar,Khera, Brij,Sharma, Anand Kumar
, p. 793 - 794 (2021/11/22)
Pentacoordinated hydrazone and azine derivatives of bis(cyclopentadienyl)titanium(IV) of the type {equation presented}, have been prepared. The products were characterized by chemical analyses, elec- trical conductance, IR, 1H NMR, and electronic spectral studies. Some hydrazone complexes and a few azine com- plexes of titanium have been studied.' ' However, no systematic study on their organometallic derivatives is available. In view of the versatile chelating ability, widespread applications and lack of data involving organometallic derivatives of titanium, it has been considered of interest to study the reactions of Cp2TiCl2 with the title ligands.
Red-emitting salicylaldehyde Schiff base with AIE behaviour and large Stokes shift
Gong, Junyi,Wei, Peifa,Su, Yuanan,Li, Ying,Feng, Xing,Lam, Jacky W.Y.,Zhang, Dongzhou,Song, Xiangzhi,Tang, Ben Zhong
, p. 1493 - 1496 (2018/06/18)
Three salicylaldehyde Schiff base (SSB), iso-PBP, PBP and EPB, were facilely synthesized and exhibited aggregation-induced emission. The introduction of C = N-N = C moiety in these SSB dyes largely extend the conjugation system and push their emission to yellow to red spectral region. These SSB dyes were negligibly fluorescent in dilute THF solution. In THF/water mixtures with high water fractions, they displayed strong yellow to red fluorescence (up to 617 nm) and large Stokes shifts (up to 152 nm). Single crystal analysis on EBP showed the longer emission of in aggregated state was attributed to the molecular packing effect as compared with that in dilute solution. The bio-imaging application indicated EBP could specifically accumulate in lipid droplets in living cells.
