Crystal structure and physical properties of 1-methyl-3-(carboxymethyl)benzimidazolium betaine·CuBr₂ in crystal and water solution

Abstract

Planar CuO2Br2 complex exists in a triclinic unit cell. Single crystal EPR and MO-theory give electron spin density delocalization parameters.

Preparation and Evaluation of PVDF-HFP-Based Gel Electrolyte for Ge-Sensitized Thermal Cell

“…UV–Vis absorption spectra of the electrolytes gelled at 35 °C, 45 °C, and 55 °C are shown in Figure S2 . Comparing the electrolytes gelled at 35 and 45 °C, there was a new absorption band caused by d - d transition due to Cu complex observed for the electrolytes gelled at 55 °C [ 40 , 41 , 42 , 43 ]. Thus, it indicated that the chemical bonding states of the electrolytes changed depending on gelation temperatures.…”

“…This indicated that the chemical bonding between Cu ions and C=O (NMP) became stronger in the discharged electrolyte. Moreover, the new absorption band caused by d-d transition due to the Cu complex was also observed in the discharged electrolyte according to the UV–Vis spectra [ 40 , 41 , 42 , 43 ]. The Cu complex was formed in the electrolyte of the discharged cell so that the diffusion of the Cu ions is inhibited.…”

“…The content rates of NMP tend to decrease with increasing gelation temperature (Figure 4b), indicating that the NMP was gradually evaporated. Thus, the color of the electrolyte was changed with gelation temperature and 80 wt% NMP was evaporated at 60 [40][41][42][43]. Thus, it indicated that the chemical bonding states of the electrolytes changed depending on gelation temperatures.…”

Ligand influence in electrocatalytic properties of Cu(ii) triazole complexes for hydrogen peroxide detection in aqueous media

“…S12 in ESI †), which according to the previously reported in the literature for similar compounds. 36,37 All band profile in the spectra is redshifted passing from more donor (L OMe ) to more acceptor (L NO 2 ) ligand in each complex. This is due to polar nature of the ground state, generated by the electronic effect of the ligand over the metal center, and the polar nature of the solvent used in the measurement.…”