Photophysical Properties of Naphthalene-oxacalix[m]arene and Recognition of Fullerene C₆₀.

ABSTRACT: Three different pore sizes of oxacalix[m]arene[n]pyrimidines modified with a naphthalene substituent were synthesized and characterized by HRMS, ¹H NMR, and single-crystal analysis (8OA and 8OA-N). Steady-state spectroscopy indicates these naphthalene-oxacalix[m]arenes exhibit good fluorescence properties, which isattributed to the locally excited (LE) state emission, and electrochemical results show that the photoinduced electron transfer (PET) process occurs from the naphthalene substituent to the linked pyrimidine. Nanosecond transient absorption spectra, singlet oxygen quantum yields (Φ_Δ4OA-N = 45.1%, Φ_Δ6OA-N = 56.6%, and Φ_Δ8OA-N = 65.7%) and theoretical calculations demonstrate that the

SUBMITTER: Yu Y 

PROVIDER: S-EPMC9096940 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature