TY - JOUR
T1 - Solvothermal synthesis, structures, and magnetic properties of NiII compounds directed by N,N′-bridging auxiliary ligands
AU - Zhang, Na
AU - Sun, Yu Jian
AU - Yang, Hong
AU - Zhang, Jian Yong
AU - Gao, En Qing
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/3/24
Y1 - 2015/3/24
N2 - Three NiII-based metal-organic frameworks (MOFs) were synthesized from the nitro-functionalized dicarboxylate ligand 2,2′-dinitro-biphenyl-4,4′-dicarboxylate (H2dnpdc) and different N-donor bridging ligands. X-ray analyses revealed that all compounds exhibit 3D architectures. Compound 1, {Ni(dnpdc)(bipy)}n, exhibits 3D framework in which the 2D Ni(dnpdc) sheets are pillared by bipy, with a new (4,6)-connected self-penetrated net topology. In compound 2, {[Ni3(dnpdc)3(bipy)3(H2O)2]·(H2O)2}n, the binuclear Ni2(COO)2 units and mononuclear units are interlinked by the dnpdc and bipy ligands into 3D framework, which displays a rare 3-fold interpenetrated (4,6)-connected net topology. Compound 3, {Ni(dnpdc)(bpee)·H2O}n, displays a 6-fold interpenetrated diamond net based on the mononuclear NiII unit. The magnetic studies of 1 reveal that the double carboxylate bridges in the nonplanar syn-skew conformation mediate ferromagnetic interactions between the NiII ions.
AB - Three NiII-based metal-organic frameworks (MOFs) were synthesized from the nitro-functionalized dicarboxylate ligand 2,2′-dinitro-biphenyl-4,4′-dicarboxylate (H2dnpdc) and different N-donor bridging ligands. X-ray analyses revealed that all compounds exhibit 3D architectures. Compound 1, {Ni(dnpdc)(bipy)}n, exhibits 3D framework in which the 2D Ni(dnpdc) sheets are pillared by bipy, with a new (4,6)-connected self-penetrated net topology. In compound 2, {[Ni3(dnpdc)3(bipy)3(H2O)2]·(H2O)2}n, the binuclear Ni2(COO)2 units and mononuclear units are interlinked by the dnpdc and bipy ligands into 3D framework, which displays a rare 3-fold interpenetrated (4,6)-connected net topology. Compound 3, {Ni(dnpdc)(bpee)·H2O}n, displays a 6-fold interpenetrated diamond net based on the mononuclear NiII unit. The magnetic studies of 1 reveal that the double carboxylate bridges in the nonplanar syn-skew conformation mediate ferromagnetic interactions between the NiII ions.
KW - Dicarboxylate ligand
KW - Magnetic properties
KW - N,N′-bridging auxiliary ligands
KW - Solvothermal synthesis
KW - X-ray crystal structures
UR - https://www.scopus.com/pages/publications/84922251070
U2 - 10.1016/j.ica.2015.01.004
DO - 10.1016/j.ica.2015.01.004
M3 - 文章
AN - SCOPUS:84922251070
SN - 0020-1693
VL - 428
SP - 37
EP - 43
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
ER -