Luminescent platinum(II) chloride complexes of 6-(1-alkyl-5-tetrazolyl)-4,4′-dimethyl-2,2′-bipyridine terdentate chelating ligands
| Autor: | Jing-Lin Chen, He-Rui Wen, Li-Hua He, Jin-Yun Wang, Xiu-Zhen Tan, Hua-Guang Yu, Xing-Feng Fu, Zong-Hao Guo |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Chemistry chemistry.chemical_element Alkylation Photochemistry Chloride 2 2'-Bipyridine Inorganic Chemistry chemistry.chemical_compound Absorption band Platinum(II) chloride Polymer chemistry Materials Chemistry medicine Physical and Theoretical Chemistry Luminescence Platinum Alkyl medicine.drug |
| Zdroj: | Inorganic Chemistry Communications. 46:273-276 |
| ISSN: | 1387-7003 |
| DOI: | 10.1016/j.inoche.2014.06.018 |
| Popis: | Two new luminescent platinum(II) chloride complexes with N-alkylated 6-(1H-5-tetrazolyl)-4,4′-dimethyl-2,2′-bipyridine (tmbpyH), [Pt(etmbpy)Cl](BF4) (1) and [Pt(htmbpy)Cl](BF4) (2) (etmbpy = 6-(1-ethyl-5-tetrazolyl)-4,4′-dimethyl-2,2′-bipyridine; htmbpy = 6-(1-hexyl-5-tetrazolyl)-4,4′-dimethyl-2,2′-bipyridine), have been prepared and characterized. Complex 1 adopts a distorted square-planar geometry and exhibits a dimeric assembly with a head-to-tail fashion and weak Pt⋯Pt interaction. A moderately intensive broad absorption band is displayed at 350–465 nm in CH3CN solution for 1 and 2, perhaps originating from the metal-to-ligand charge-transfer (MLCT) states mixed with some halide-to-ligand charge-transfer (XLCT) and intra-ligand (IL) ππ* characters, as supported by their TD-DFT calculations. Complexes 1 and 2 show the photoluminescent properties in PMMA films and solid state at ambient temperature, which are influenced by the alkylation of the tetrazolyl-NH of tmbpyH. |
| Databáze: | OpenAIRE |
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