Linking magnetic MII–[MV(CN)8] chains into 2D inorganic–organic hybrid materials

Stefańczyk, Olaf; Majcher, Anna M.; Rams, Michał; Nitek, Wojciech; Mathonière, Corine; Sieklucka, Barbara

doi:10.1039/c5ce00414d

Cited by 1 publication

(2 citation statements)

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“…The major advantage of SBU-based magnets is the presence of cavities, whose sizes are proportional to the length of organic or inorganic linkers. Larger voids are accessible to guest molecules and enable direct alteration of magnetic interactions through the weak interactions associated with van der Waals interactions. ,, Simultaneously, increasing the bridge lengths adversely impacts the strength of magnetic coupling between paramagnetic centers due to the weak magnetic exchange coupling mediated by organic linkers. , Thus, the realization of SBU-based magnets displaying long-range magnetic ordering remains challenging. Nevertheless, this goal has been achieved several times in recent years. , Interestingly, the decreased magnetic coupling strength has improved the magnetic SBU node isolation, which is an exciting feature from the viewpoint of the construction of an extended network with nodes revealing slow magnetic relaxation (single-molecule magnets, SMMs).…”

Section: Introductionmentioning

confidence: 99%

“…22,23,26 Simultaneously, increasing the bridge lengths adversely impacts the strength of magnetic coupling between paramagnetic centers due to the weak magnetic exchange coupling mediated by organic linkers. 10,33 Thus, the realization of SBU-based magnets displaying long-range magnetic ordering remains challenging. Nevertheless, this goal has been achieved several times in recent years.…”

Section: ■ Introductionmentioning

confidence: 99%

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Integration of Trinuclear Triangle Copper(II) Secondary Building Units in Octacyanidometallates(IV)-Based Frameworks

et al. 2022

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The design and synthesis of high-dimensional materials based on secondary building blocks (SBUs) play a pivotal role in the further development of functional molecular materials. Herein, the self-assembly of Cu(II) ions, pyrazole (Hpz), and octacyanidometallate(IV) anions in the presence of water produced two new isostructural three-dimensional systems {[Cu3(μ3-OH)(μ-pz)3(H2O)3]2[M(CN)8]}·nH2O (M = W, 1, and Mo, 2). 1 and 2 consist of trinuclear triangle copper(II) (TTC) SBUs and octacyanidometallates(IV). At room temperature, both assemblies display strong antiferromagnetic interactions within the TTC entities with an average CuII···CuII isotropic magnetic coupling constant of about −145 cm–1. Moreover, a detailed analysis of magnetic data revealed the presence of spin frustration with antisymmetric magnetic exchange-coupling constants of around +32 and +46 cm–1 for 1 and 2, respectively. Finally, quantum chemical calculations explained their magnetic and optical properties.

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