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Modulator Induced Formation of a Neutral Framework Based on Trinuclear Cobalt(II) Clusters and Nitrilotribenzoic Acid: Synthesis, Magnetism, and Sorption Properties
Author(s) -
Akintola Oluseun,
Buchholz Axel,
Görls Helmar,
Plass Winfried
Publication year - 2021
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.202100231
Subject(s) - chemistry , cobalt , isophthalic acid , benzoic acid , sorption , antiferromagnetism , metal organic framework , phthalic acid , crystallography , solvothermal synthesis , magnetism , acetic acid , chloride , cluster (spacecraft) , topology (electrical circuits) , inorganic chemistry , organic chemistry , terephthalic acid , adsorption , physics , mathematics , quantum mechanics , combinatorics , polyester , condensed matter physics , computer science , programming language
The solvothermal reaction of cobalt(II) chloride and 4,4′,4′′‐nitrilotribenzoic acid (H 3 ntb) in dmf employing a modulator based approach leads to the formation of the neutral framework with the formula [Co 9 (ntb) 6 (solv) 12 ] n (JUMP‐3). Different mono‐ and dicarboxylic acids such as benzoic, phthalic, isophthalic, and acetic acid could be used as appropriate modulator to trigger the reaction toward the formation of the neutral framework. X‐ray crystallography revealed a three‐dimensional network composed of linear trinuclear cobalt(II) units as metal nodes and the triarylamine linkers. The topological analysis showed that the framework adopts a 3,6‐coordinated net with 3,6T80 topology. Magnetic measurements performed in the temperature range of 2–300 K indicate antiferromagnetic interactions between the cobalt(II) ions within its linear trinuclear clusters. The N 2 sorption properties were investigated and show the presence of micropores, which is consistent with the presence of the 1D channels in the crystal structure of JUMP‐3.