Repozytorium
Wyszukaj
Kolekcje
Inne
Luminescent properties and structure of new CAPh-based lanthanide complexes [LnL3Q], containing additional bis-heterocyclic aromatic ligand-antenna 2-(1,3,4-oxadiazole-2-yl) pyridine.
Autorzy
Rok wydania
2018
Czasopismo
Numer woluminu
75
Strony
459-464
DOI
10.1016/j.optmat.2017.10.044
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The new lanthanide coordination compounds of general formula [LnL3Q], where Ln = Eu, Gd, Tb; L = dimethyl-N-trichloroacetylamidophosphate and Q = 2-(1,3,4-oxadiazole-2-yl)pyridine, have been synthesized and isolated in crystalline state with the purpose of finding new interesting optical materials. X-ray data reveal that complexes have molecular structure with numerous Van-der-Vaals contacts between molecules. All the ligands are coordinated in bidentate chelate manner, coordination polyhedron was interpreted as distored square antiprism (CN 8). The obtained complexes were investigated by means of IR, absorption and luminescence spectroscopy as well and thermal gravimetric analysis. It was found that complex [TbL3Q] is resistant to temperature of 200 °C. The Eu3+ and Tb3+ complexes exhibit bright metal-centered emission with decay time 1.65 and 1.74 ms respectively. Intrinsic quantum yield for [EuL3Q] equals 85% that is one of the highest values, known to date for CAPh based europium complexes.
Słowa kluczowe
lanthanides, photoluminescence, coordination compounds, carbacylamidophosphates, atom, sansitization
Adres publiczny
https://doi.org/10.1016/j.optmat.2017.10.044
Strona internetowa wydawcy
Podobne publikacje
Spectroscopy and structure of [LnL3bipy] and [LnL3phen] complexes with CAPh type ligand dimethylbenzoylamidophosphate.
Kariaka Nataliia S., Trush Victor A., Gawryszewska Paula, Dyakonenko Viktoriya V., Shishkina Svitlana V., Sliva Tatiana Yu., Amirkhanov Vladimir M.
First examples of carbacylamidophosphate pentanuclear hydroxo-complexes : synthesis, structure, luminescence and magnetic properties.
Kariaka Nataliia S., Rusanova Julia A., Smola Sergii S., Kolotilov Sergey V., Znovjyak Katerina O., Weselski Marek, Sliva Tatiana Yu., Amirkhanov Vladimir M.