Practical implementation of highly coherent molecular spin qubits for challenging technological applications, such as quantum information processing or sensing, requires precise organization electronic qubit components into extended frameworks. Realization spatial control over qubit–qubit distances can be achieved by coordination chemistry approaches through an appropriate choice the building blocks. However, translating single units arrays does not guarantee a priori retention long...

Abstract Lanthanide‐based extended coordination frameworks showing photocontrolled single‐molecule magnet (SMM) behavior were prepared by combining highly anisotropic Dy III and Ho ions with the carboxylato‐functionalized photochromic molecule 1,2‐bis(5‐carboxyl‐2‐methyl‐3‐thienyl)perfluorocyclopentene (H 2 dae), which acts as a bridging ligand. As result, two new compounds of general formula [{Ln (dae) 3 (DMSO) (MeOH)} ⋅ 10 M eOH] n (M=Dy for 1 ) additional pseudo‐polymorphs [{Dy O)} x...

Reaction of the ligands 4,5-bis(propylthio)tetrathiafulvalene-2-(2-pyridyl)benzimidazole (L(1)) and 4,5-bis(propylthio)tetrathiafulvalene-2-(2-pyridyl)-3-(2-pyridinylmethyl)benzimidazole (L(2)) with Dy(hfac)3⋅2 H2O (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate) gave mononuclear complexes [Dy(hfac)3(L(1))] (1) [Dy(hfac)3(L(2))] (2). In both compounds Dy(III) ion is surrounded by six oxygen two nitrogen atoms. Complex 1 displays single-ion magnet (SIM) behaviour only in solution (Δ=12(1) K τ0...

Multifunctional molecular materials exhibiting electrical conductivity and single-molecule magnet (SMM) behaviour are particularly attractive for electronic devices related applications owing to the interaction between conduction magnetization of unimolecular units.

Abstract Mononuclear complexes with the formula [Ln(hfac) 3 ( L 1 )] and 2 hfac – = 1,1,1,5,5,5‐hexafluoroacetylacetonate, 2‐{4,5‐[4,5‐bis(propylthio)tetrathiafulvalenyl]‐1 H ‐benzimidazol‐2‐yl}pyridine 2‐{1‐methylpyridyl‐4,5‐[4,5‐bis(propylthio)tetrathiafulvalenyl]‐1 are reported for Ln Y III , Er Yb . The X‐ray structures reveal that Ln(hfac) moieties coordinated to bidentate 1‐(2‐pyridylmethyl)benzimidazole acceptor. coordination polyhedron is described as a more or less distorted...

Six new 3d4f heterobimetallic dinuclear complexes, [(L(1))MLn(hfac)(3)] [M = Cu(II), Ni(II); Ln Y(III), Er(III), Yb(III); L(1) 4,5-bis(propylthio)tetrathiafulvalene-N,N'-phenylenebis(salicylideneimine) and hfac(-) 1,1,1,5,5,5-hexafluoroacetylacetonate], one tetranuclear complex, [(L(2))Cu(OH)Er(hfac)(3)](2) (where L(2) 4,5-bis(propylthio)tetrathiafulvalene-N,N'-phenyleneaminosalicylideneimine), have been synthesized. All of the X-ray structures coordination complexes resolved from...

Two-dimensional Dy(<sc>iii</sc>) and Ho(<sc>iii</sc>) homometal coordination polymers containing the DTE ligand were obtained, magnetic properties of open closed forms investigated.

Incorporating palladium in the first coordination sphere of acetato-bridged lanthanoid complexes, [Pd2 Ln2 (H2 O)2 (AcO)10 ]⋅2 AcOH (Ln=Gd (1), Y (2), Gd0.4 Y1.6 (3), Eu (4)), led to significant bonding interactions between and ions, which were demonstrated by experimental theoretical methods. We found that electron density was donated from d8 Pd2+ ion Gd3+ 1 3, leading observed slow magnetic relaxation using local orbital locator (LOL) X-ray absorption near-edge structure (XANES) analysis....

Single-molecule magnets exhibit magnetic bistabililties at the molecular level, making them promising for molecule-based spintronics due to high densities. The incorporation of SMM behavior and electrical conductivity in one compound is rare because these two physical properties often do not operate same temperature range, which further hinders their use practical applications. Here we present an organic–inorganic hybrid, β″-(BEDO-TTF)3[Co(pdms)2]·(MeCN)(H2O)2 (BO3) (BEDO-TTF =...

Abstract (TTF‐salphen)M compounds (TTF‐salphen 2− =4,5‐bis(propylthio)tetrathiafulvalene‐ N , N′ ‐phenylenebis(salicylideneimine) dianion; M=Cu II and Ni ) have been treated with Ln(hfac) 3 ⋅ 2 H O precursors (hfac − =1,1,1,5,5,5‐hexafluoroacetylacetonate anion; Ln=Gd III Tb Dy to elaborate unprecedented 3d/4f TTF‐based heterobimetallic complexes of formula [(TTF‐salphen)MLn(hfac) ]. All the structures these resolved by X‐ray diffraction on single crystals. The are formed a TTF‐salphen...

The synthesis, structures, and magnetic properties of two heterometallic CuII–DyIII clusters are reported. first structural motif displays a pentanuclear CuII4DyIII core, while the second one reveals nonanuclear CuII6DyIII3 core. We employed o-vanillin-based Schiff base ligands combining o-vanillin with 3-amino-1-propanol, H2vap, (2-[(3-hydroxy-propylimino)-methyl]-6-methoxy-phenol), 2-aminoethanol, H2vae, (2-[(3-hydroxy-ethylimino)-methyl]-6-methoxy-phenol). differing nuclearities stem from...

A major roadblock to fully realizing molecular electronic devices is the ability control properties of each molecule in device. Herein we report magnetic single-molecule magnets (SMMs), which can be used memory devices, by using a photo-isomerizable diarthylenthene ligand. Photo-isomerization diarylethene ligand bridging two manganese salen complexes with visible light caused significant change SMM behavior due opening six-membered ring ligand, accompanied reorganization entire molecule. The...

The DyIII quintuple-decker complex DyCdCdDy and hetero quadruple-decker DyCdY were synthesized, their magnetic properties compared with those of the DyCdDy. Single-crystal X-ray analysis revealed that coordination geometries around ions DyCdCdDy, DyCdY, DyCdDy similar. dc (direct current) measurements indicated had very weak ferromagnetic DyIII-DyIII interactions but did not. From a comparison relaxation times (τ) three complexes, τ values DyCdDy, which have interactions, are longer than...

Heterometallic Gd-Pt complexes ([Gd2 Pt3 (H2 O)2 (SAc)12 ] (SAc=thioacetate), [Y1.4 Gd0.6 ], and [Gd2 O)6 ]⋅7 H2 O have been synthesized. The crystal structures DFT calculations indicated a heretometallic bond. Single-crystal ESR spectra determined the direction of magnetic anisotropy as In other words, bond dictates anisotropy. heterometallic lowers symmetry Gd ion, splitting Kramers doublet in dc field. Thus, we observed clear field-induced slow relaxation up to 36 K. process was be direct process.

A series of two-dimensional (2D)-layered coordination polymers (CPs) based on the heterosubstituted anilate ligand ClCNAn2– derived from 3-chloro-6-cyano-2,5-dihydroxybenzoquinone and DyIII are reported. By changes in synthetic methods (layering technique, solvothermal or conventional one-pot reactions) conditions (solvent, concentration, etc.), different types 2D extended networks could be prepared structurally characterized. Compounds 1 1′, two polymorphs with formula...

Magnetization shift is observed in two-dimensional organic–inorganic perovskite (C 6 H 5 C 2 4 NH 3 ) FeCl with coexistence of ferroelasticity and canted antiferromagnetism.

We herein report the synthetic, structural, theoretical, and magnetic studies on three isostructural complexes, [M(L)2(CH3OH)2] (M = Mn (Mn), Fe (Fe), Co (Co); HL 2,6-bis(pyrazole-1-yl)pyridine-4-carboxylic acid). From single crystal X-ray crystallography, it is found that complexes crystallized in same space group (C2/c) had seven-coordinate pentagonal bipyramidal structures. direct current (dc) alternating (ac) susceptibility measurements, were to undergo field-induced slow relaxation with...

Two double-decker complexes with annulene ligands functionalized indolenine groups were synthesized and characterized. The position of the proton acting as a counterion on one four nitrogen atoms was determined by using DFT calculations. Deprotonation protonation complex induced adding base an acid, respectively, monitored NMR spectroscopy. Moreover, correlation among degree complex, opening hysteresis, slow relaxation time is discussed.

SMM behavior is observed for [Ln₂(HL)₄(NO₃)₆] (Ln = Tb and Yb, HL 8-hydroxyquinaldine) complexes having nine-coordinated lanthanide centres, whereas, [Ln₂(HL)₄Cl₆]·2EtOH complexes, hexa-coordinated centres do not show any property.

The first three-dimensional (3D) conductive single-ion magnet (SIM), (TTF)2 [Co(pdms)2 ] (TTF=tetrathiafulvalene and H2 pdms=1,2-bis(methanesulfonamido)benzene), was electrochemically synthesised investigated structurally, physically, theoretically. similar oxidation potentials of neutral TTF the molecular precursor [HNEt3 ]2 [M(pdms)2 (M=Co, Zn) allow for multiple charge transfers (CTs) between SIM donor ]n- TTF.+ acceptor, as well an intradonor CT from pdms ligand to Co ion upon...

Cooperation between single-molecule magnets and electrical conductivity holds promise for preparing high-density magnetic devices; however, there are only a few reports so far. Here we report 4f−π-based molecular hybrid, k-(ET)5Dy(NCS)7(KCl)0.5 (1) (ET = bis(ethylenedithio)tetrathiafulvalene, NCS— thiocyanate), which undergoes slow relaxation of the magnetization conductivity. Unlike common ET-based conductive salts, K+ ions were intercalated into ET layers coordinated with radicals. We...

The tetrathiafulvalene based 2-immino-pyrazine derivative (TTF-CHN-2-pyz) (1) was synthesized and characterized. Its radical cation salt (1˙+PF6−) prepared as single crystals by electrocrystallisation. 1˙+PF6− crystallizes in the triclinic P space group. Four 1 : 2 bis(hexafluoroacetylacetonate)M(II) complexes coordinated with were (M = Mn for 2, M Co 3, Cu 4 Zn 5). Complex monoclinic C2/c group, 5 crystallize group P. Two pyrazine N atoms from two different donors are cis configuration...

Chemists and physicists are continuously working to understand the mechanisms controlling molecular magnetism, especially single-molecule improve magnetic properties, such as blocking temperature. With current research focused on preparing devices, methods control components of devices necessary. Extensive has shown that stimuli, light, electric current, etc., can be used change properties molecules making up devices. Bis(carboxylato)dithienylethene (DTE) derivatives photo-isomerized between...

Three isostructural 1D lanthanoid complexes with the general formula {[Ln2(DTE)(H-DTE)(MeOH)2]·2H2O}n (Ln = Tb, Dy, and Yb; DTE 1,2-bis(5-carboxyl-2-methyl-3-thienyl) perfluorocyclopentene) were synthesized. In chain structure of each complex, lanthanide ions are seven coordinate a capped trigonal prism geometry. The perfluorocyclopentene (DTE) ligand adopts parallel configuration in these complexes, which results loss photo-isomerization ability ligand. From magnetic measurements, complex...