Spin Crossover in Anionic Cobalt-Bridged Fullerene (Bu<sub>4</sub>N<sup>+</sup>){Co(Ph<sub>3</sub>P)}<sub>2</sub>(μ<sub>2</sub>‑Cl<sup>–</sup>)(μ<sub>2</sub>‑η<sup>2</sup>,η<sup>2</sup>‑C<sub>60</sub>)<sub>2</sub> Dimers
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A spin crossover phenomena is observed in an anionic (Bu4N+){Co(Ph3P)}2(μ2-Cl–)(μ2-η2,η2-C60)2·2C6H14 (1) complex in which two cobalt atoms bridge two fullerene molecules to form a dimer. The dimer has a triplet ground state with two weakly coupling Co0 atoms (S = 1/2). The spin transition realized above 150 K is accompanied by a cobalt-to-fullerene charge transfer that forms a quintet excited state with a high spin CoI (S = 1) and C60•– (S = 1/2).
创建时间：
2016-12-19
