Effect of One- and Two-Electron Reduction of Terbium(III) Double-Decker Phthalocyanine on Single-Ion Magnet Behavior and NIR Absorptionстатья
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Дата последнего поиска статьи во внешних источниках: 21 мая 2019 г.
Аннотация:Reduction of terbium(III) double-decker phthalocyanine TbIIIPc2 yields (PPN+){TbIII(Pc2−)2}−·2.5C6H4Cl2 (2) containing Pc2− dianions and {Cryptand(Na+)}2 {(Pc2−)TbIII(Pc•3−)}2− (3) containing the Pc•3− radical trianions. Compound 2 manifests single-ion magnet (SIM) behavior with a large effective spin-reversal energy barrier of Ueff = 538 cm−1. In contrast to 2, compound 3 does not show any signs of SIM. Compound 3 manifests low-energy absorption in the near IR range at 4700 cm−1 (2130 nm) attributed to intervalence transitions.