Abstract A huge increase in the magnetization of two coordination chains based on tetravalent octacyanidometalates (W IV and Mo ) is observed irradiation with 436 nm light, while no such behavior for Nb analogue. photomagnetic response solely [W (CN) 8 ] 4− demonstrated first time. The attributed to light‐induced excited spin state trapping (LIESST) effect at octacyanidometalate, resulting magnetic exchange ON/OFF photoswitching between Mn II center photoinduced high‐spin ( S =1) W or centers.

"Converting" light energy to magnetization is the attribute of molecule-based compounds called photomagnets and inaccessible for conventional magnetic solids. The design synthesis such compounds, however, a formidable challenge, only few examples are known, all with rather low ordering temperatures well below boiling point liquid nitrogen. Herein, cyanide-bridged coordination polymer, {[MnII(imidazole)]2[WIV(CN)8]} n, exhibiting highest light-induced temperature ever observed hysteresis loop...

<title>Abstract</title> Manipulating the physical properties of solid matter using only photons is a major challenge in materials science. In this study, we present photochemistry occurring single crystal simple cyanide complex, K₄[Mo^III(CN)₇]·2H₂O. Upon exposure to visible light at different wavelengths, reversible breaking and reformation dative bonds triggered, resulting photoswitching Mo^III coordination geometry between 6-...

Two 3D bimetallic cyanido-bridged coordination polymers, [CuII(H4tetac)]2[MIV(CN)8]·4H2O (M = MoIV (1) and WIV (2)), based on copper(II) complex of tetracarboxylic-derivative cyclam, H4tetac (=1,4,8,11-tetrazacyclotetradecane-6,6,13,13-tetracarboxylic acid), have been synthesized characterized in terms structure, proton conductivity, the photomagnetic effect. The isostructural compounds crystallize polar Fdd2 space group present a diamond-like topology. carboxylic groups structure yield...

A homoleptic gadolinium(III) complex with the smallest helicene-type ligand, 1,10-phenanthroline-N,N'-dioxide (phendo) [Gd(phendo)4](NO3)3·xMeOH (phendo = 1,10-phenanthroline-N,N'-dioxide, MeOH methanol), shows slow relaxation of magnetization characteristic for Single Ion Magnets (SIM), despite negligible magnetic anisotropy, confirmed by ab initio calculations. Solid state dilution and EPR studies reveal that dynamics [Gd(phendo)4]3+ cation is controlled mainly a Raman process. Pulsed...

While metal-organic frameworks (MOFs) are at the forefront of cutting-edge porous materials, extraordinary sorption properties can also be observed in Prussian Blue Analogs (PBAs) and related materials comprising extremely short bridging ligands. Herein, we present a bimetallic nonporous cyanide-bridged coordination polymer (CP) {[Mn(imH)]2[Mo(CN)8]} n (1Mn; imH = imidazole) that efficiently reversibly capture release water molecules over tens cycles without any fatigue despite being based...

Abstract Magnetic molecules known as molecular nanomagnets (MNMs) may be the key to ultra-high density data storage. Thus, novel strategies on how design MNMs are desirable. Here, inspired by hexagonal structure of hardest intermetallic magnet SmCo 5 , we have synthesized a nanomagnetic molecule where central lanthanide (Ln) Er III is coordinated solely three transition metal ions (TM) in perfectly trigonal planar fashion. This [Er (Re I Cp 2 ) 3 ] ( ErRe starts family (MNM) with unsupported...

The photoinduced properties of the octacoordinated complex K4 MoIV (CN)8 ⋅2 H2 O were studied by theoretical calculations, crystallography, and optical magnetic measurements. crystal structure recorded at 10 K after blue light irradiation reveals an heptacoordinated Mo(CN)7 species originating from light-induced cleavage one Mo-CN bond, concomitant with formation a paramagnetic signal. When this is heated to 70 K, it returns its original diamagnetic ground state, demonstrating full...

A family of distorted trigonal pyramidal transition-metal complexes [MII (N3 N)Li(THF)] (M=Mn, Fe, Co, Ni) have been studied as candidates for mononuclear single-molecule magnets. Magnetic anisotropy the depends on electronic configuration central ion, with Co analogue exhibiting pronounced SMM behavior.

Abstract A huge increase in the magnetization of two coordination chains based on tetravalent octacyanidometalates (W IV and Mo ) is observed irradiation with 436 nm light, while no such behavior for Nb analogue. photomagnetic response solely [W (CN) 8 ] 4− demonstrated first time. The attributed to light‐induced excited spin state trapping (LIESST) effect at octacyanidometalate, resulting magnetic exchange ON/OFF photoswitching between Mn II center photoinduced high‐spin ( S =1) W or centers.

Propeller-like lanthanide complexes with suitable chiral ligand scaffolds are highly desired as they combine chirality possible magnetic bistability. However, the library of relevant lanthanide-based molecules is quite limited. Herein we present preparation, structures, behavior well EPR studies a series propeller-shaped Single Ion Magnets (SIMs). Coordination smallest helicene-type molecule 1,10-phenanthroline-N,N'-dioxide (phendo) to LnIII ions results in formation homoleptic...

A new 1-D spin SCO coordination polymer based on Fe II trinuclear units covalently linked by a flexible coligand has been reported as an unusual platform and model system for experimental study the origin of step-like feature in systems.

Octacyanidometallates have been proven to be very useful molecular building blocks for the construction of various materials with a strong emphasis on magnetic properties. However, their availability is still limited due preparation difficulties. Existing methods consume large amounts cyanide and require prolonged time synthesis. In this contribution novel synthetic routes octacyanidoniobate(IV) octacyanidomolybdate(IV) using NbCl 4 (THF) 2 MoCl 5 , respectively, as starting are reported....

Two new coordination chain compounds based on octacyanoniobate(IV) are reported: {[MnII(bpy)(H2O)2]2[NbIV(CN)8]·5H2O}n (1) and {[MnII(bpy)(H2O)2][MnII(bpy)2][NbIV(CN)8]·5H2O}n (2) (bpy = 2,2′-bipyridine). Both have the topology of vertex-sharing CN-bridged squares. The Mn2Nb2 units mutually parallel in 1 perpendicular 2. antiferromagnetic intrachain interactions between MnII NbIV centers 2, typical for MnII-[NbIV(CN)8] family compounds, lead to ferrimagnetic ground state each single chain....

Variation of three different stimuli: the type guest molecules, temperature and light enables intentional manipulation mechanical, electronic magnetic properties a cyanido-bridged coordination polymer.

The magnetic coercivity of four new heptacyanomolybdate(<sc>iii</sc>)-based coordination polymers is correlated with the geometry [Mo^III(CN)₇]⁴⁻ anion and cyanide bridging pattern framework.

Three isomorphous coordination frameworks demonstrate paramagnetic, antiferromagnetic or ferromagnetically-coupled behaviour, which is controlled by light and temperature.

The rational design of coordination frameworks combining more than two different metal ions using a self-assembly approach is challenging because it rarely offers sufficient control over the building blocks at actual stage. In this work, we present successful two-step strategy toward heterotrimetallic by employing new bimetallic [(NC)7MoIV-CN-PtIV(NH3)4-NC-MoIV(CN)7]4– secondary unit (SBU). This anionic moiety has been isolated and characterized as simple salt with an organic dppipH22+...

The cyanide-bridged coordination polymer mimics the topology and porosity of MOF-74. It also shows additional highly desired functionalities: chirality photomagnetic effect, which makes it a truly multifunctional molecular material.

Paddlewheel-type binuclear complexes featuring metal-metal bonding have been the subject of widespread interest due to fundamental concern in their electronic structures and potential applications. Here, we explore molecular diiron(II,II) with N,N'-diarylformamidinate ligands. While a paddlewheel-type complex N,N'-diphenylformamidinate ligands (DPhF) exhibits centrosymmetric [Fe2 (μ-DPhF)4 ] structure, minor alteration ligand system, i. e., switching from phenyl p-tolyl N-substituted...

Three new crystalline phases of the borohydride complex, [n-Bu4N][RE(BH4)4] (RE = Gd (1), Gd0.097Y0.903 (2) and Gd0.017Y0.983 (3)), were obtained in pure form characterised using EPR spectroscopy AC/DC magnetometry. In all 1-3, unusually slow field-induced magnetic relaxation was observed up to high temperatures, which above 10 K is dominated by power law thermal dependence identified as two-phonon Raman process. Therefore, weak-field ligands such seem be perfect candidates for triggering...

Abstract The photoinduced properties of the octacoordinated complex K 4 Mo IV (CN) 8 ⋅2 H 2 O were studied by theoretical calculations, crystallography, and optical magnetic measurements. crystal structure recorded at 10 after blue light irradiation reveals an heptacoordinated Mo(CN) 7 species originating from light‐induced cleavage one Mo−CN bond, concomitant with formation a paramagnetic signal. When this is heated to 70 K, it returns its original diamagnetic ground state, demonstrating...

Invited for the cover of this issue is group Dawid Pinkowicz at Jagiellonian University, Kraków, Poland. The image shows isostructural octacyanidoniobate(IV) and octacyanidomolybdate(IV) anions – building blocks various magnetic molecular materials.