TY - JOUR
T1 - Structural design of coordination polymers based on manganese and chromium ions bridged by oxalate ligands
AU - Yoshitake, Masashi
AU - Kubo, Kazuya
AU - Endo, Toru
AU - Noro, Shin Ichiro
AU - Akutagawa, Tomoyuki
AU - Nakamura, Takayoshi
N1 - Funding Information:
This work was supported by Grants-in-Aid for Scientific Research from The Ministry of Education, Culture, Sports, Science and Technology (MEXT) of JAPAN and Japan Society for the Promotion of Science (JSPS) Core-to-Core Program, A. Advanced Research Network.
Publisher Copyright:
© 2016 The Chemical Society of Japan.
PY - 2016
Y1 - 2016
N2 - Coordination polymers based on oxalate-bridged {[MnIICrIII-(oxalate)3]-}∞ complexes of (DAT-2H2+)(DCH[18]crown-6)2[MnII(CH3OH)CrIII(oxalate)3]-2(CH3OH)3 and (DABCO-H+)2(DABCO-2H2+)[MnII(CH3OH)(Cl-)CrIII(oxalate)3]2-2- (CH3OH), where DAT, DABCO, and DCH[18]crown-6 denote 2,5-diaminotoluene, 1,4-diazabicyclo[2.2.2]octane, and cis-syncis-dicyclohexano[18]crown-6, respectively, were synthesized. The crystal structure of the former complex was composed of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]- units, whereas that of the latter crystal was composed of [MnII(Δ)(CH3OH)(Cl-)-CrIII(Δ)(oxalate)3]2- units. The large flexible supramolecular cation in the former provided the two-dimensional structure of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]-, although the two-dimensional honeycomb structure of the {[MnII(Δ)CrIII(Δ)-(oxalate)3]-}∞ and {[MnII(Δ)CrIII(Δ)(oxalate)3]-}∞ networks are often observed for the oxalate complexes. The round-shaped DABCO molecule in the latter induced a one-dimensional chain structure of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]-. The former crystal showed a magnetic field dependence of magnetization typical for a spin-canting system.
AB - Coordination polymers based on oxalate-bridged {[MnIICrIII-(oxalate)3]-}∞ complexes of (DAT-2H2+)(DCH[18]crown-6)2[MnII(CH3OH)CrIII(oxalate)3]-2(CH3OH)3 and (DABCO-H+)2(DABCO-2H2+)[MnII(CH3OH)(Cl-)CrIII(oxalate)3]2-2- (CH3OH), where DAT, DABCO, and DCH[18]crown-6 denote 2,5-diaminotoluene, 1,4-diazabicyclo[2.2.2]octane, and cis-syncis-dicyclohexano[18]crown-6, respectively, were synthesized. The crystal structure of the former complex was composed of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]- units, whereas that of the latter crystal was composed of [MnII(Δ)(CH3OH)(Cl-)-CrIII(Δ)(oxalate)3]2- units. The large flexible supramolecular cation in the former provided the two-dimensional structure of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]-, although the two-dimensional honeycomb structure of the {[MnII(Δ)CrIII(Δ)-(oxalate)3]-}∞ and {[MnII(Δ)CrIII(Δ)(oxalate)3]-}∞ networks are often observed for the oxalate complexes. The round-shaped DABCO molecule in the latter induced a one-dimensional chain structure of [MnII(Δ)(CH3OH)CrIII(Δ)(oxalate)3]-. The former crystal showed a magnetic field dependence of magnetization typical for a spin-canting system.
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U2 - 10.1246/bcsj.20150373
DO - 10.1246/bcsj.20150373
M3 - Article
AN - SCOPUS:84961785340
SN - 0009-2673
VL - 89
SP - 354
EP - 360
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
IS - 3
ER -