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Spin-canting in a 1D chain Mn(II) complex with alternating double end-on and double end-to-end azido bridging ligands

“…Up to now, many discrete [1], one-dimensional (1D) [2], two-dimensional (2D) [3] and three-dimensional (3D) [4] magnetic systems with the EE-or EO-azido bridges have been reported. And the concurrence of both the EE-and EO-azido bridges in transition metal coordination polymers is not rare [5]. However, it is still hard to exactly forecast which coordination mode azido ligand will adopt to coordinate transition metal center in detail system [6].…”

“…1). Each Mn(II) ion is localized in an distorted octahedral environment, which is comprised of two nitrogen atoms [N1 (1) and N(2)] of dpq ligand, two EO-azido nitrogen atoms [N (5) and N(7) #1 ( #1 : Àx À 1, Ày À 2, Àz À 2)] and two EEazido nitrogen atoms [N (8) and N(8) #2 ( #2 : Àx, Ày À 2, Àz À 2)]. N(1) and N(8) occupy two axial positions, while the equatorial plane is formed by N(2), N(5), N(7) #1 and N (8) Table 1).…”

From Hartree–Fock to Electron Correlation: Application to Magnetic Systems

“…In this respect, the azido ligand turned out to be extremely appealing in linking metal ions and a remarkable magnetic coupler for propagating interactions between paramagnetic ions. The structural variety of the azido complexes ranges from molecular clusters to extended 1D to 3D materials [66][67][68][69][70][71]. An interesting prototype of such a system has been recently synthesized where a single azido unit bridges in an alternating End-On (EO) and End-to-End (EE) way the Ni(II) ions (see Figure 1.11) [72].…”

An unusual 3-D asymmetric mixed valence copper-azido complex with pyrazinecarboxylate as co-ligand showing rare net topology: Hydrothermal synthesis, structure and magnetic properties

“…Among all the metal azide complexes, research in complexes with asymmetric azide coordination is active due to their unusual magnetic properties. Commonly, there are two kinds of asymmetric azide coordination modes: asymmetric EO [4,6] and asymmetric EE [7], but the asymmetric l 1,1,3 mode are still rare [8].In the past two decades, several mono-or multi-dimensional metal-azido derivatives have been reported [9], and high dimensional metal-azido complexes are still the focus for researchers for their interesting topology and magnetic properties [10]. One of the most effective strategy is the introduction of a second ligand to extend the architecture [11].…”

“…In the past two decades, several mono-or multi-dimensional metal-azido derivatives have been reported [9], and high dimensional metal-azido complexes are still the focus for researchers for their interesting topology and magnetic properties [10]. One of the most effective strategy is the introduction of a second ligand to extend the architecture [11].…”