TY - JOUR
T1 - Weak DyIII-DyIII Interactions in DyIII-phthalocyaninato multiple-decker single-molecule magnets effectively suppress magnetic relaxation
AU - Horii, Yoji
AU - Katoh, Keiichi
AU - Cosquer, Goulven
AU - Breedlove, Brian K.
AU - Yamashita, Masahiro
N1 - Funding Information:
This work was financially supported by a Grant-in-Aid for Scientific Research (20225003) and Grant-in-Aid for Young Scientists (24750119), Scientific Research (15K05467), Tohoku University Molecule and Material Synthesis Platform in Nanotechnology Platform Project, a Grant-in-Aid for JSPS Fellows (14J02656) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), and CREST, JST, Japan.
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/11/21
Y1 - 2016/11/21
N2 - The DyIII quintuple-decker complex DyCdCdDy and hetero quadruple-decker complex DyCdY were synthesized, and their magnetic properties were compared with those of the quadruple-decker complex DyCdDy. Single-crystal X-ray analysis revealed that the coordination geometries around the DyIII ions of DyCdCdDy, DyCdY, and DyCdDy were similar. dc (direct current) magnetic measurements indicated that DyCdCdDy had very weak ferromagnetic DyIII-DyIII interactions but DyCdY did not. From a comparison of the magnetic relaxation times (τ) of the three complexes, the τ values of DyCdCdDy and DyCdDy, which have weak DyIII-DyIII interactions, are longer than that of DyCdY. In other words, weak DyIII-DyIII interactions effectively suppress magnetic relaxation.
AB - The DyIII quintuple-decker complex DyCdCdDy and hetero quadruple-decker complex DyCdY were synthesized, and their magnetic properties were compared with those of the quadruple-decker complex DyCdDy. Single-crystal X-ray analysis revealed that the coordination geometries around the DyIII ions of DyCdCdDy, DyCdY, and DyCdDy were similar. dc (direct current) magnetic measurements indicated that DyCdCdDy had very weak ferromagnetic DyIII-DyIII interactions but DyCdY did not. From a comparison of the magnetic relaxation times (τ) of the three complexes, the τ values of DyCdCdDy and DyCdDy, which have weak DyIII-DyIII interactions, are longer than that of DyCdY. In other words, weak DyIII-DyIII interactions effectively suppress magnetic relaxation.
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U2 - 10.1021/acs.inorgchem.6b01870
DO - 10.1021/acs.inorgchem.6b01870
M3 - Article
AN - SCOPUS:84998694377
SN - 0020-1669
VL - 55
SP - 11782
EP - 11790
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 22
ER -