Remarkable near-infrared chiroptical properties of chiral Yb, Tm and Er complexes.
In: Dalton Transactions: An International Journal of Inorganic Chemistry, Jg. 51 (2022-01-14), Heft 2, S. 518-523
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Zugriff:
We carried out a study of absorption (CD) and emission (CPL) chiroptical properties in the NIR region of two sets of Yb, Tm and Er complexes. The two complexes include a D 3 symmetric, [TMG-H + ] 3 Ln(BINOLate) 3 (Ln = Yb, Tm, Er; TMG = 1,1,3,3-tetramethylguanidine; BINOLate = 1,1′-bi-2-naphtholate), and a tetrakis, C 4 symmetric, CsLn(hfbc) 4 (Ln = Yb, Tm, Er; hfbc = 3-heptafluorobutylyrylcamphorate). The lanthanides studied gave access to three discrete energy domains, Yb (900–1040 nm), Tm (1180–1240 nm) and Er (1430–1600 nm) in which the chiroptical activity was assessed using g abs (and g lum for Yb complexes). Exceptionally high discrimination between left and right circularly polarised light was observed, with values up to almost the theoretical maximum (±2). [ABSTRACT FROM AUTHOR]
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Titel: |
Remarkable near-infrared chiroptical properties of chiral Yb, Tm and Er complexes.
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Autor/in / Beteiligte Person: | Willis, Oliver G. ; Zinna, Francesco ; Pescitelli, Gennaro ; Micheletti, Cosimo ; Di Bari, Lorenzo |
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Zeitschrift: | Dalton Transactions: An International Journal of Inorganic Chemistry, Jg. 51 (2022-01-14), Heft 2, S. 518-523 |
Veröffentlichung: | 2022 |
Medientyp: | academicJournal |
ISSN: | 1477-9226 (print) |
DOI: | 10.1039/d1dt03843e |
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