论文部分内容阅读
通过在铽的酞菁卟啉混杂三层的卟啉周边共价连接体积庞大的笼型倍半硅氧烷(POSS),得到了首个包含POSS的混杂三层Tb2(Pc)[T(OPOSS)4PP]2(1)[H2Pc=phthalocyanine;H2T(OPOSS)4PP=5,10,15,20-tetra{[[N-[heptakis(isobutyl)propoxy]phenyl]octasiloxane]}porphyrin]。为了对比研究,同时合成了类似的三层化合物Tb2(Pc)(TPP)2(2)(H2TPP=5,10,15,20-tetraphenyporphyrin)。尤其值得注意的是,在没有外加磁场的条件下,Tb2(Pc)[T(OPOSS)4PP]2(1)和Tb2(Pc)(TPP)2(2)分别表现出单分子磁体和非单分子磁体的性质,这充分说明了共价连接均匀分布的POSS基团有效地分离了磁性核心,从而改善了酞菁卟啉混杂三层的磁性。
The first POSS-containing mixed ternary Tb2 (Pc) [T (OPOSS) was obtained by covalently linking bulky cage silsesquioxanes (POSS) around the terbium porphyrin doped with terbium phthalocyanine ) 4PP] 2 (1) [H2Pc = phthalocyanine; H2T (OPOSS) 4PP = 5,10,15,20-tetra {[[N- [heptakis (isobutyl) propoxy] phenyl] octasiloxane]} porphyrin]. For comparative studies, a similar three-layer compound Tb2 (Pc) (TPP) 2 (2) (H2TPP = 5,10,15,20-tetraphenyporphyrin) was also synthesized. Particularly noteworthy is the fact that Tb2 (Pc) [T (OPOSS) 4PP] 2 (1) and Tb2 (Pc) (TPP) 2 (2) exhibit a single-molecule magnet and a non-single The properties of the molecular magnet fully demonstrate that the covalently linked POSS groups can effectively separate the magnetic core and improve the magnetism of the hybrid phthalocyanine porphyrin layer.