57871-18-8Relevant articles and documents
A self-assembled, magnetically coupled square Cu16 4 x [2 x 2] grid
Dawe, Louise N.,Thompson, Laurence K.
, p. 7440 - 7444 (2007)
(Chemical Equation Presented) Grid ion: A Cu16 grid prepared with a tetratopic bishydrazone ligand has metal ions in a [4 x 4] array linked by a combination of μ-Ohydrazone and μ-NNpyridazine bridges. The six-coordinate copper ions display Jahn-Teller distortion, leading to some orbitally orthogonal bridges. Multiple intragrid magnetic-exchange pathways are present and are modeled simply by taking the molecular symmetry and the orthogonal connections into account.
Synthesis of three imidazole derivatives and corrosion inhibition performance for copper
He, Kang,Hou, Yanggao,Lei, Jiaheng,Ma, Sicai,Yang, Ze,Zhu, Limeng
, (2022/01/26)
Three imidazole derivatives, including 3-(4-(2,4-dichlorophenyl)-5-methyl-1H-imidazol-2-yl)pyridine (PDI), 2-(4-(2,4-dichlorophenyl)-5-methyl-1H-imidazol-2-yl)pyrazine (PAI) and 2-(4-(2,4-dichlorophenyl)-5-methyl-1H-imidazol-2-yl)pyrimidine (PMI), were synthesized. The structure of these compounds was confirmed by LC-MS, 1H NMR, 13C NMR and FTIR spectra. The inhibition performance in 3.5 wt% NaCl was investigated by electrochemical measurement and surface analysis. Results show that the corrosion efficiency of PDI (95.93%) was higher than PAI (69.61%) and PMI (20.46%), which is consistent with the adsorption energy calculated by molecular dynamics simulation. The corrosion inhibition mechanism could be explained by the metal–organic polymer film formed on the copper surface: on the one hand, the π-system formed by aromatic rings is tightly adsorbed on the copper substrates; on the other hand, the nitrogen atoms in the imidazole ring are coordinated with the metal ions in solution to form metal–organic polymer which could improve the compactness of the hydrophobic film.
A one-pot approach to 10-(1H-1,2,3-triazol-1-yl)pyrimido[1,2-a]indoles via aryne-mediated transformations of 3-(pyrimidin-2-yl)-1,2,4-triazines
Kopchuk, Dmitry S.,Chepchugov, Nikolay V.,Khasanov, Albert F.,Kovalev, Igor S.,Santra, Sougata,Nosova, Emiliya V.,Zyryanov, Grigory V.,Majee, Adinath,Rusinov, Vladimir L.,Chupakhin, Oleg N.
supporting information, p. 3862 - 3865 (2016/08/02)
An efficient synthetic approach toward 10-(1H-1,2,3-triazol-1-yl)pyrimido[1,2-a]indoles, including fluorinated derivatives, has been developed. The transformation of the 1,2,4-triazine ring of readily available 3-(pyrimidin-2-yl)-1,2,4-triazines proceeds
