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Synthesis, Structures, and Magnetic Properties of Two Cobalt(II) Isophthalate Coordination Polymers
Author(s) -
Cheng XiaoNing,
Xue Wei,
Chen XiaoMing
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000146
Subject(s) - chemistry , cobalt , antiferromagnetism , isophthalic acid , crystallography , coordination polymer , metal organic framework , methanol , molecule , polymer , spin canting , stereochemistry , polymer chemistry , crystal structure , inorganic chemistry , organic chemistry , magnetization , terephthalic acid , physics , adsorption , quantum mechanics , magnetic field , polyester , condensed matter physics
Two new 3D coordination polymers, [Co 6 (μ 3 ‐OH) 2 (ipa) 5 (H 2 O) 5 ] · 8H 2 O ( 1 ) and [Co 2 (ipa) 2 (iPrOH) 0.5 (H 2 O) 0.5 ] · ( i PrOH) 0.5 (H 2 O) ( 2 ) (H 2 ipa = isophthalic acid, i PrOH = 2‐propanol), were synthesized by solvothermal reactions of Co(OAc) 2 and H 2 ipa in methanol and i PrOH, respectively. Compound 1 is a cluster‐based 3D porous framework with Co 6 nodes and ipa 2– linkers. Compound 2 is a chain‐based framework composed of Co II 4 1 helical Δ chains cross‐linked by ipa 2– ligands with one‐dimensional channels in the c direction. Both 1 and 2 show spin‐canting behavior for the antiferromagnetic triangular geometry and weak long‐range ordering for the existence of guest molecules.