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Cover Picture: Synthesis, Characterizations, Magnetism and Thermal Degradation of a 2‐Fold Interpenetrated 3D Cobalt‐Organic Framework (Chin. J. Chem. 3/2014)
Author(s) -
Yang Linyan,
Xin Liangliang,
Gu Wen,
Liao Shengyun,
Du Peiyao,
Tian Jinlei,
Zhang Yanping,
Lv Rui,
Wei Xiaohua,
Liu Xin,
Liao Daizheng
Publication year - 2014
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201490006
Subject(s) - chemistry , crystallography , magnetism , cobalt , isophthalic acid , antiferromagnetism , magnetic susceptibility , sbus , crystal structure , topology (electrical circuits) , stereochemistry , metal organic framework , inorganic chemistry , organic chemistry , physics , condensed matter physics , mathematics , adsorption , quantum mechanics , combinatorics , polyester , terephthalic acid
The cover picture shows a new coordination polymer, [Co 2 (L) 2 (4,4′‐bipy)] n ·3 n H 2 O ( 1 ) based on 5‐(3‐methyl‐5‐phenyl‐4 H ‐1,2,4‐triazol‐4‐yl)isophthalic acid (H 2 L ) and 4,4′‐bipyridine (4,4′‐bipy), which has been hydrothermally synthesized and characterized by single‐crystal X‐ray diffraction, XRPD, IR, and elemental analysis. The 2D triangle networks were linked by the bridging 4,4′‐bipy ligand to give rise to a 2‐fold interpenetrated 3D architecture. We can define Co(II) ions as 4‐connected nodes and the L 2− ligands as 3‐connected nodes. Thus, the 3D structure can be described as a 2‐fold parallel interpenetrated ins InS 3,4‐conn topology. Variable‐temperature (2–300 K) magnetic susceptibility measurements indicate that compound 1 exhibits antiferromagnetic interactions between the Co(II) paramagnetic centers. Compound 1 was heated to produce Co 3 O 4 . The particle size of the Co 3 O 4 phase is 400–800 nm. More details are discussed in the article by Liu et al . on page 227 – 232.