New Approach for Designing Single-Chain Magnets: Organization of Chains via Hydrogen Bonding between Nucleobases
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https://figshare.com/articles/dataset/New_Approach_for_Designing_Single_Chain_Magnets_Organization_of_Chains_via_Hydrogen_Bonding_between_Nucleobases/2527993
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资源简介：
Two one-dimensional (1D) manganese complexes, [Mn2(naphtmen)2(L)](ClO4)·2Et2O·2MeOH·H2O (1) and [Mn2(naphtmen)2(HL)](ClO4)2·MeOH
(2), were
synthesized by using a bridging ligand with a nucleobase moiety, 6-amino-9-β-carboxyethylpurine,
and a salen-type manganese(III) dinuclear complex, [Mn2(naphtmen)2(H2O)2](ClO4)2 (naphtmen2– = N,N′-(1,1,2,2-tetramethylethylene)bis(naphthylideneiminato)
dianion). In 1 and 2, the carboxylate-bridged
MnIII dinuclear units are alternately linked by two kinds
of weak Mn···O interactions into 1D chains. As a result,
canted antiferromagnetic and ferromagnetic interactions are alternately
present along the chains, leading to a 1D chain with non-cancellation
of anisotropic spins. Since the chains connected via H-bonds between
nucleobase moieties are magnetically isolated, both 1 and 2 act as single-chain magnets (SCMs). More importantly,
this result shows the smaller canting angles hinder long-range ordering
in favor of SCM dynamics.
创建时间：
2016-02-21
