Synthesis, Spectroscopic, and Electrochemical Properties of Rare Earth Double-Deckers with Tetra(tert-butyl)-2,3-naphthalocyaninato Ligands

Infra-red spectroscopic characteristics of naphthalocyanine in bis(naphthalocyaninato) rare earth complexes peripherally substituted with thiophenyl derivatives

“…S1. Due to remarkable rare earth size effect, the visible Q bands at 708-725 nm may be attributed to characteristic p-radical anion bands of Nc ring [18, [21][22][23]. It should be mentioned that the Q band of naphthalocyanine splits into two bands, which is the result of the introduction of thiophenyl on the naphthalocyanine ring, and the second Q band at 792-812 nm becomes stronger with the decrease of rare earth ion radius.…”

A series of homoleptic bis(phthalocyaninato) rare earth sandwich complexes with large two-photon absorption cross-section

“…As shown in Table 1, the ionic radii of Ce(Ⅲ), Sm(Ⅲ) and Lu(Ⅲ) are 114 pm, 109 pm and 97 pm respectively [47,48], and the 2PA cross-section of Ce(OOPc) 2 (1), Sm(OOPc) 2 (2), Lu(OOPc) 2 (3) is 3.5×10 4 GM (1), 9.3×10 4 GM (2) and 1.2×10 5 GM (3) at the wavelength of 800 nm respectively. Previous research has proved that the π-π interaction between the two phthalocyaninato rings becomes stronger with the decrease of the rare earth atomic radius.…”

Sandwich-Type Lanthanide(III) Dinaphthalocyanine Complexes Possessing an Intensive Absorption in the Near IR Region: Synthesis and Investigation of Properties

“…This method considerably differs from the synthesis in solution [11][12][13] since the starting nitrile serves simultaneously as the reagent and the reaction medium. According to this method, the synthesis of dinaphthalocyanines 2-4 was performed by melting of a mixture of dinitrile 1 with the corresponding lanthanide acetates by the gradual increase of temperature from 220 to 310 °C and by keeping at this temperature until the reaction mixture was solidified (~2 h).…”

“…Using of this approach allowed us to decrease the time of reaction and increase the yields of target complexes comparing to their analogues, which were obtained by the synthesis in solution. [13] Sandwich-Type Lanthanide(III) Dinaphthalocyanine Complexes In addition to the melting method, the europium and erbium dinaphthalocyanine complexes were synthesized using microwave irradiation (MW). This method has been suggested for the first time for the synthesis of unsubstituted and octa-tert-butyl-substituted lanthanide diphthalocyanines [15] and so far has not been used for preparation of naphthalocyanine complexes.…”