Achieving crimson red emission of europium (III) complexes with β-keto acids and ancillary ligands for their applications in optoelectronic devices and biomedical domain

Augmentation of photophysical features and Judd–Ofelt analysis of extensively green glowing terbium (III) complexes with nitrogen donor ancillary ligands

“…The deprotonation occurred in the carboxylic group because the carboxylic hydrogen is more acidic than the amino hydrogen [21]. The difference between asymmetric and symmetric vibrations of the carboxylato group (∆ = v asym (COO)-v sym (COO)) was helpful to observe the chelation mode of the carboxylato group [22,23]. If ∆ > 200 then the carboxylato group was coordinated in a monodentate manner, herein all synthesized complexes exhibited ∆ > 200 cm -1 (Table 2), which suggests the presence of the mono-coordinated carboxylic group.…”

Lanthanides: The Key to Durable and Sustainable Corrosion Protection

“…Europium (Eu), the seventh element of the Ln series, is the most reactive metal, having reactivity equal to calcium and the lowest density as compared to other elements of the Ln series. Eu plays a vital role in various fields due to its luminosity, and it has been used in display technologies, biomedical science, and anticounterfeiting technology. − Zhao et al found that Eu atoms having a high energy conversion rate increased the band gap of ZnO by providing additional energy levels, and thus improving the properties of ZnO. Moreover, the corrosion testing revealed that this variation in electronic structure, 9 times increased the corrosion inhibition efficiency.…”

Computational analysis, Urbach energy and Judd–Ofelt parameter of warm Sm3+complexes having applications in photovoltaic and display devices

“…To calculate the energy values of the triplet state for L and secondary ligands, gadolinium(III) complexes were synthesised in a similar manner. 32 Scheme 1 explicates the preparation route of Sm 3+ complexes C1-C6. 24,33 The owchart of the steps of synthesis of C1-C6 complexes by a liquid-assisted grinding method is presented in Fig.…”

“…To calculate the energy values of the triplet state for L and secondary ligands, gadolinium( iii ) complexes were synthesised in a similar manner. 32 …”