1184997-85-0Relevant academic research and scientific papers
Crystal structures, antioxidation, and DNA binding properties of Sm III complexes
Liu, Yongchun,Yang, Zhengyin,Zhang, Kejun,Wu, Yun,Zhu, Jihua,Zhou, Tianlin
, p. 345 - 354 (2011)
The dinuclear SmIII complexes with 1:1 metal to ligand stoichiometry were prepared from Sm(NO3)3·6H 2O and three anionic tetradentate Schiff-base ligands derived from 8-hydroxyquinoline-2-carboxyaldehyde with be
Dysprosium(iii) compounds assembledviaa versatile ligand incorporating salicylic hydrazide and 8-hydroxyquinolin units: syntheses, structures and magnetic properties
Le Guennic, Boris,Montigaud, Vincent,Tang, Jinkui,Zhang, Li,Zhang, Peng
, p. 9457 - 9466 (2021/07/17)
Assembly of dysprosium(iii) salts with a multidentate ligand H3L ((2-hydroxy)-N′-((8-hydroxyquinolin-2-yl)methylene)-benzohydrazide) affords a variety of products with different topological structures, namely [Dy(H2L)(HL)]·CH3OH (1), [Dy2(HL)2(C6H5COO)2(CH3OH)2]·3CH3OH (2), [Dy2(HL)2(NO3)2(DMF)4]·4DMF (3), [Dy4L4(CH3OH)4]·2CH3OH·4H2O (4) and ([Dy4(HL)4(C6H5COO)4(CH3OH)(H2O)]·2CH3OH·CH3CN·H2O)n(5). The versatile and flexible coordination modes of phenoxo groups from salicylic hydrazide prove to be a key factor in the assembly of corresponding structures depending upon the reaction conditions. It is noteworthy that ligands HL2?act as a long-distance link and further connect the Dy2fragments into an infinite 1D chain due to the conformational flexibility resulting from the rotatable C-C bond in5. Furthermore, the magnetic measurements were performed on all complexes. The dc magnetic susceptibility data evidence distinct magnetic coupling interactions in the dinuclear complexes2(antiferromagnetic) and3(ferromagnetic) despite their similar structures, and only complex3shows slow relaxation behavior of magnetization.Ab initiocalculations and electrostatic potential analysis on complexes2,3, and three other complexes (6,7,8) incorporating different kinds of ligands reveal the important interrelationship of magnetic anisotropy, magnetic coupling interactions and SMM properties.
Fluorescent molecular probe for identifying and detecting oxalic acid as well as preparation method and application thereof
-
, (2020/08/27)
The invention discloses a fluorescent molecular probe for identifying and detecting oxalic acid as well as a preparation method and an application thereof, which relate to a probe for identifying anddetecting oxalic acid as well as the preparation method and the application thereof. The invention aims to solve the technical problems that the existing fluorescent probe for identifying and detecting oxalic acid by using a fluorescence method cannot realize quantitative detection, is poor in selectivity and is easily interfered by other organic acids. The structural formula of the fluorescent molecular probe of the present invention is in the specification. The preparation method of the fluorescent molecular probe comprises the following steps: 1, reacting salicylic acid, concentrated sulfuric acid and methanol to prepare an intermediate I; 2, preparing an intermediate II from the intermediate I and hydrazine hydrate; 3, carrying out a reaction on 8-hydroxyquinaldine, selenium dioxide and 1, 4-dioxane to prepare an intermediate III; 4, reacting the intermediate III with the intermediate II to obtain an intermediate IV; and 5, reacting the intermediate IV with Fe to obtain the probe. The oxalic acid is recognized and detected through fluorescence enhancement, the selectivity is high, interference of other organic acids is avoided, and the detection limit is 1.3*10 mol/L.The method can be used in environment and food fields.
Evaluation of some quinoline-based hydrazone derivatives as insecticidal agents
Yu, Xiang,Feng, Gang,Huang, Jiulin,Xu, Hui
, p. 30405 - 30411 (2019/01/14)
In continuation of our program aimed at the discovery and development of efficient insecticidal agents, a series of quinoline-based hydrazone derivatives were synthesized and evaluated as insecticidal agents against three-day-old larvae of Spodoptera litura (Noctuidae: Lepidoptera), a polyphagous insect pest of many important crops, in vivo at 1 mg mL1. In particular, compounds 3c, 3e, 4g, 4h, and 6f showed potent insecticidal activity with 7 day mortality rates greater than 93%, and were comparable to that of the positive control toosendanin.
Crystal structures and DNA-binding properties of PrIII complexes derived from 8-hydroxyquinoline-2-carboxaldehyde and three aroylhydrazines
Liu, Yong-Chun,Li, Ying-Ying,Qi, Hui-Li,Zhang, Ke-Jun,Lei, Rui-Xia,Liu, Jian-Ning
, p. 3689 - 3703 (2015/10/19)
PrIII and three synthesized ligands, 8-hydroxyquinoline-2-carboxaldehyde-(benzoyl)hydrazone, 8-hydroxyquinoline-2-carboxaldehyde-(2′-hydroxybenzoyl)hydrazone, and 8-hydroxyquinoline-2-carboxaldehyde-(isonicotinyl)hydrazone, respectively, can fo
Crystal structures, antioxidation and DNA binding properties of Dy(III) complexes with Schiff-base ligands derived from 8-hydroxyquinoline-2-carboxaldehyde and four aroylhydrazines
Liu, Yong-chun,Yang, Zheng-yin
experimental part, p. 5080 - 5089 (2010/01/06)
X-ray crystal and other structural analyses indicate that Dy(III) and every ligand can form a binuclear Dy(III) complex with nine-coordination and 1:1 metal-to-ligand stoichiometry at the Dy(III) center. All the ligands and Dy(III) complexes can bind to C
