In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 45, No. 47 ( 2021), p. 22361-22368
Abstract:
Coordination compounds of lanthanides NEt 4 [NaLn 2 L 4 (H 2 O)], Na[NaLn 2 L 4 (H 2 O)]·2H 2 O (Ln = La 3+ , Nd 3+ ) with the bis-chelating carbacylamidophosphate ligand tetramethyl N , N ′-(2,2,3,3,4,4-hexafluoro-1,5-dioxopentane-1,5-diyl)bis(phosphoramidate) (H 2 L) were obtained for the first time via reactions of Na 2 L with lanthanide nitrates. The complexes were characterized by IR and NMR spectroscopy and laser desorption/ionization mass spectrometry. From X-ray diffraction analysis, it was established that the complex anions in the obtained compounds have a structure of a quadruple-stranded helicate, which encapsulates a sodium cation and a molecule of water into the negatively charged environment of the ligand fluorine and carbonyl oxygen atoms. Upon excitation by the 266 nm harmonic line of the Nd:YAG pulsed laser, the NEt 4 [NaNd 2 L 4 (H 2 O)] complex exhibits IR-emission at 300 and 77 K with the 4 F 3/2 emission lifetime of 2 μs.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
1472933-7
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