J. Appl. Cryst.の発刊に際して

Synthesis of 3d metallic single-molecule magnets

Strategies towards single molecule magnets based on lanthanide ions

Artificial photosynthesis: molecular systems for catalytic water oxidation.

Recent advances in dysprosium-based single molecule magnets: Structural overview and synthetic strategies

https://onlinelibrary.wiley.com/doi/pdf/10.1002/anie.200454013

Synthesis, structure, and magnetic properties of a large lanthanide-transition-metal single-molecule magnet.

Structural and functional evolution of metallacrowns.

https://onlinelibrary.wiley.com/doi/pdf/10.1002/anie.200351246

Synthesis and magnetic properties of a metallacryptate that behaves as a single-molecule magnet.

The structural characterization of complexes [MnII4MnIII22(pdol)12(OCH3)12(O)16(N3)6] (1) and [MnII4MnIII22(pdol)12(OCH3)12(O)16(OH)2(H2O)(OCH3)3]·ClO4·5CH3OH (2), where pdol2- is di-2-pyridyl methanediol, reveals that each has a metallacryptand shell that encapsulates a manganese oxide core Variable-temperature direct current magnetic susceptibility measurements on 2 indicate a paramagnetic ground state that results from an overall antiferromagnetic interaction in the cluster, with χT values decreasing from 300 K (512 cm3 K mol-1) to 2 K (198 cm3 K mol-1) Variable-temperature alternating current magnetic susceptibility measurements imply that both 1 and 2 behave as single-molecule magnets Fitting the frequency-dependent out-of-phase magnetic susceptibility to the Arrhenius equation yields an effective energy barrier, Ueff, to magnetization relaxation of 165 ± 07 K (115 ± 05 cm-1) for 1 and 362 ± 20 K (251 ± 14 cm-1) for 2 The larger value for 2 is in agreement with the lower molecular symme

Metallacryptate Single-Molecule Magnets: Effect of Lower Molecular Symmetry on Blocking Temperature

The inclusion of LnIII ions into the 12-MC-4 framework generates the first heterotrimetallic complexes of this molecular class. The controllable and deliberate preparations of these compounds are demonstrated through 12 crystal structures of the LnIIIMI(OAc)4[12-MCMnIII(N)shi-4](H2O)4·6DMF complex, where OAc– is acetate, shi3- is salicylhydroximate, and DMF is N,N-dimethylformamide. Compounds 1–12 have MI as NaI, and LnIII can be PrIII (1), NdIII (2), SmIII (3), EuIII (4), GdIII (5), TbIII (6), DyIII (7), HoIII (8), ErIII (9), TmIII (10), YbIII (11), and YIII (12). An example with MI = KI and LnIII = DyIII is also reported (DyIIIK(OAc)4[12-MCMnIII(N)shi-4](DMF)4·DMF (14)). When LaIII, CeIII, or LuIII is used as the LnIII ions to prepare the LnIIINaI(OAc)4[12-MCMnIII(N)shi-4] complex, the compound Na2(OAc)2[12-MCMnIII(N)shi-4](DMF)6·2DMF·1.60H2O (13) results. For compounds 1–12, the identity of the LnIII ion affects the 12-MCMnIII(N)shi-4 framework as the largest LnIII, PrIII, causes an expansion of the 12...

Controllable formation of heterotrimetallic coordination compounds: Systematically incorporating lanthanide and alkali metal ions into the manganese 12-metallacrown-4 framework

Curtis M. Zaleski

Papers

Synthesis, structure, and magnetic properties of a large lanthanide-transition-metal single-molecule magnet.

Structural and functional evolution of metallacrowns.

Synthesis and magnetic properties of a metallacryptate that behaves as a single-molecule magnet.

Metallacryptate Single-Molecule Magnets: Effect of Lower Molecular Symmetry on Blocking Temperature

Controllable formation of heterotrimetallic coordination compounds: Systematically incorporating lanthanide and alkali metal ions into the manganese 12-metallacrown-4 framework