Intriguing Indium-salen Complexes as Multicolor Luminophores
| Autor: | Seon Hee Lee, Won Hee Woo, Myung Hwan Park, Youngjo Kim, Sang Woo Kwak, Nara Shin, Min Kim, Kyunglim Hyun, Kang Mun Lee, Ji Hye Lee, Hyonseok Hwang, Junseong Lee |
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| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
010405 organic chemistry Stereochemistry chemistry.chemical_element Nuclear magnetic resonance spectroscopy 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Crystallography chemistry Elemental analysis Intramolecular force Bathochromic shift Emission spectrum Physical and Theoretical Chemistry Absorption (chemistry) Indium |
| Zdroj: | Inorganic Chemistry. 56:2621-2626 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.6b02797 |
| Popis: | The series of novel salen-based indium complexes (3-tBu-5-R-salen)In-Me (3-tBu-5-R-salen = N,N'-bis(2-oxy-3-tert-butyl-5-R-salicylidene)-1,2-diaminoethane, R = H (1), tBu (2), Br (3), Ph (4), OMe (5), NMe2 (6)) and [(3-tBu-5-NMe3-salen)In-Me](OTf)2 (7; OTf = CF3SO3-) have been synthesized and fully characterized by NMR spectroscopy and elemental analysis. All indium complexes 1-7 are highly stable in air and even aqueous solutions. The solid-state structures for 3-5, which were confirmed by single-crystal X-ray analysis, exhibit square-pyramidal geometries around the indium center. Both the UV/vis absorption and PL spectra of 1-7 exhibit significant intramolecular charge transfer (ICT) transitions based on the salen moieties with systematically bathochromic shifts, which depend on the introduction of various kinds of substituents. Consequently, the emission spectra of these complexes cover almost the entire visible region (λem = 455-622 nm). |
| Databáze: | OpenAIRE |
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