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Two Metal–Organic Frameworks Based on Hexanuclear Cobalt–Hydroxyl Clusters or a Manganese–Hydroxyl Chain from Triangular [M<sup>II</sup><sub>3</sub>(μ<sub>3</sub>-OH)] (M = Co and Mn) Units: Antiferromagnetic and Spin-Canting Antiferromagnetic Ordering with Soft-Magnetic Behavior

Lei Zhou, Manzhu Zhao, Xiaoying Zhang, Jingping Zhang

2020Inorganic Chemistry16 citationsDOI

Abstract

Three-dimensional highly connected isonicotinic acid–base metal–organic frameworks (MOFs), [CoII6(μ3-OH)2(in)7(HCOO)3H2O]·4DMF (1) and [MnII3(μ3-OH)(in)3(CH3COO)2] (2) (Hin = isonicotinic acid), have been successfully prepared. Compounds 1 and 2 were constructed from planar Co6 cluster SBUs or rare 1D manganese-hydroxyl chain SBUs, respectively. Both SBUs contain triangular MII3(OH) (M = Co and Mn) central units, which are connected by rare syn,anti,syn,anti- and syn,syn,anti-coordinated formic acid or acetic acid. Both compounds 1 and 2 have good thermal stability, while compound 2 also exhibits an extraordinarily high moisture stability. Magnetic studies demonstrate that 1 shows antiferromagnetic behavior, and 2 exhibits spin-canting antiferromagnetic ordering with soft-magnetic behavior.

Topics & Concepts

ChemistryManganeseCobaltMetal-organic frameworkMetalChain (unit)Inorganic chemistryCrystallographyPhysical chemistryOrganic chemistryAdsorptionPhysicsAstronomyMetal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Two Metal–Organic Frameworks Based on Hexanuclear Cobalt–Hydroxyl Clusters or a Manganese–Hydroxyl Chain from Triangular [M<sup>II</sup><sub>3</sub>(μ<sub>3</sub>-OH)] (M = Co and Mn) Units: Antiferromagnetic and Spin-Canting Antiferromagnetic Ordering with Soft-Magnetic Behavior | Litcius