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Synthesis, Thermal Stability, and Magnetic Properties of a Manganese(II) Coordination Framework Containing Bistriazolate Ligands
Author(s) -
Bunzen Hana,
Grzywa Maciej,
Aljohani Reem,
Krug von Nidda HansAlbrecht,
Volkmer Dirk
Publication year - 2019
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.201900796
Subject(s) - chemistry , monoclinic crystal system , ferrimagnetism , manganese , crystallography , coordination complex , crystal structure , thermal stability , ligand (biochemistry) , molecule , single crystal , benzotriazole , inorganic chemistry , magnetization , metal , organic chemistry , biochemistry , physics , receptor , quantum mechanics , magnetic field
By combining a bistriazole ligand, [1,2,3]triazolo[4,5‐ f ]benzotriazole‐4,8(2 H ,6 H )‐dione (H 2 C 6 N 6 O 2 ), and Mn(II) cations in water, we prepared a Mn(II) coordination framework having an unexpected structure. As revealed by single‐crystal X‐ray analysis, the compound crystallizes in the monoclinic crystal system in the space group P 2 1 / n and forms a 2D layered structure. The complex formula is [Mn 3 (C 6 N 6 O 2 ) 2 (OH) 2 (H 2 O) 4 ], and the framework is formed by bistriazolate and hydroxido ligands, Mn(II) cations (with two different coordination environments), and coordinated water molecules. The thermal stability was studied by TGA and VT XRPD. The studies reveal that the material is stable up to 250 °C. Furthermore, magnetic measurements show that the Mn(II) coordination framework undergoes ferrimagnetic order below 6.5 K.