Tunable magnetic anisotropy in luminescent cyanido-bridged {Dy2Pt3} molecules incorporating heteroligand PtIVlinkers DOI
Agnieszka Puzan, Mikołaj Żychowicz, Junhao Wang

et al.

Dalton Transactions, Journal Year: 2021, Volume and Issue: 50(44), P. 16242 - 16253

Published: Jan. 1, 2021

The interest in the generation of photoluminescence lanthanide(III) single-molecule magnets (SMMs) is driven by valuable magneto-optical correlations as well perspectives toward magnetic switching emission and opto-magnetic devices linking SMMs with optical thermometry. In pursuit enhanced anisotropy features, key role played suitable ligands attached to 4f metal ion. this context, cyanido complexes d-block ions, serving expanded metalloligands, are promising. We report two novel discrete coordination systems emissive SMMs, {[DyIII(H2O)3(tmpo)3]2[PtIVBr2(CN)4]3}·2H2O (1) {[DyIII(H2O)(tmpo)4]2[PtIVBr2(CN)4]3}·2CH3CN (2) (tmpo = trimethylphosphine oxide), obtained combining DyIII uncommon dibromotetracyanidoplatinate(IV) [PtIVBr2(CN)4]2-. They built analogous Z-shaped cyanido-bridged {Dy2Pt3} molecules but differ number (C.N. 8 1, C.N. 7 2) coordinated tmpo (three four which related applied solvents. As a result, both compounds reveal DyIII-centred slow relaxation only 1 shows SMM character at zero dc field, while 2 field-induced SMM. dynamics governed Raman mechanism. These effects were analysed using ac data results ab initio calculations support based on low-temperature high-resolution spectra. Our findings indicate that heteroligand halogeno-cyanido PtIV promising precursors for further potential sensitivity external stimuli may be lability axially positioned halogeno ligands.

Language: Английский

Optical Phenomena in Molecule-Based Magnetic Materials DOI Creative Commons
Jakub J. Zakrzewski, Michał Liberka, Junhao Wang

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(9), P. 5930 - 6050

Published: April 30, 2024

Since the last century, we have witnessed development of molecular magnetism which deals with magnetic materials based on species, i.e., organic radicals and metal complexes. Among them, broadest attention was devoted to molecule-based ferro-/ferrimagnets, spin transition materials, including those exploring electron transfer, nanomagnets, such as single-molecule magnets (SMMs), qubits, stimuli-responsive materials. Their physical properties open application horizons in sensors, data storage, spintronics, quantum computation. It found that various optical phenomena, thermochromism, photoswitching characteristics, luminescence, nonlinear chiroptical effects, well responsivity external stimuli, can be implemented into Moreover, fruitful interactions these effects provide new cross-effects multifunctionality, enriching applications optical, electronic, devices. This Review aims show scope phenomena generated recent advances areas high-temperature photomagnetism, thermometry utilizing SMMs, addressability magneto-chiral dichroism, opto-magneto-electric multifunctionality. These findings are discussed context types accessible for classes

Language: Английский

Citations

34
Multifunctionality of luminescent molecular nanomagnets based on lanthanide complexes DOI Creative Commons
Robert Jankowski, Maciej Wyczesany, Szymon Chorąży

et al.

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(40), P. 5961 - 5986

Published: Jan. 1, 2023

Multifunctional materials, which exhibit diverse physical properties, are candidates for the new generation of smart devices that realize many tasks simultaneously. Particular attention is given to single-phase multifunctional materials offer effects induced by coupling between introduced properties. Complexes lanthanide(3+) ions an attractive source multifunctionality since they combine luminescent functionalities related their f-f or d-f electronic transitions with magnetic anisotropy originates from spin-orbit and crystal-field effects. The resulting single-molecule magnets (SMMs) link area functional luminophores, applicable in light-emitting diodes sensing, field molecular magnets, high-density data storage, additional advantages, e.g., fruitful magneto-optical correlations switching emission a field. It was recently shown lanthanide SMMs can provide richly expanded towards sensitivity solvent exchange, temperature, light, as well electrical such super-ionic conductivity ferroelectricity, non-centrosymmetricity- chirality-related effects, second-harmonic circularly polarized luminescence. Here, we discuss pioneering reports on use SMMs, emphasis our contribution relying functionalization 4f metal complexes through insertion into heterometallic coordination compounds.

Language: Английский

Citations

37
A Three-Component Donor–Acceptor Hybrid Framework with Low-Power X-ray-Induced Photochromism DOI
Yiwen Wang, Meng-Hua Li, Shuquan Zhang

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(21), P. 8153 - 8159

Published: May 17, 2022

Donor-acceptor (D-A) hybrid frameworks with visual X-ray photochromism at room temperature are fascinating because of their promising applications as detectors. Herein, a 3-fold interpenetrated D-A framework, [Eu(bcbp)1.5(DMF)(H2O)2][Co(CN)6]·4H2O·CH3OH (1), has been obtained by incorporating electron-rich Co(CN)63- into the electron-deficient europium viologen which interestingly exhibits ultraviolet and low-power dual remarkable color change from brown to green. Experimental theoretical studies revealed that photochromic behavior 1 could be attributed its structural feature increasing extent photoinduced electron transfer thus photogenerated radical species upon irradiation. Meanwhile, due introduction emissive lanthanide cations in system, photomodulated luminescence properties.

Language: Английский

Citations

32
Photochromism and photomagnetism in three cyano-bridged 3d–4f heterobimetallic viologen frameworks DOI
Meng-Hua Li,

Ming‐Hua You,

Mei‐Jin Lin

et al.

Dalton Transactions, Journal Year: 2021, Volume and Issue: 50(14), P. 4959 - 4966

Published: Jan. 1, 2021

Three 3-D isostructural cyanide-bridged 3d–4f heterobimetallic complexes with enhanced photochromism and photomagnetism at RT have been achieved by the introduction of a photoactive viologen functionalized ligand.

Language: Английский

Citations

38
“Twin Lotus Flower” Adsorbents Derived from LaFe Cyanometallate for High-Performance Phosphorus Removal DOI

Pingping Dong,

Xiaoxu Jing,

Yungui Li

et al.

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 291, P. 120924 - 120924

Published: March 26, 2022

Language: Английский

Citations

25
Luminescence thermometry and field induced slow magnetic relaxation based on a near infrared emissive heterometallic complex DOI
Konstantinos Karachousos-Spiliotakopoulos, V. Tangoulis, Nikos Panagiotou

et al.

Dalton Transactions, Journal Year: 2022, Volume and Issue: 51(21), P. 8208 - 8216

Published: Jan. 1, 2022

The 1 : reaction of YbCl3·6H2O, K3[Co(CN)6] and bpyO2 in H2O has provided access to a complex with formula [YbCo(CN)6(bpyO2)2(H2O)3]·4H2O (1) very good yield while its structure been determined by single-crystal X-ray crystallography characterised based on elemental analyses IR spectra. Magnetic susceptibility studies showed the be field induced single molecule magnet, as confirmed μ-SQUID measurements. CASSCF calculations confirm existence mJ = 7/2 ground state, rather large transverse components, responsible for fast relaxation characteristic compound at zero DC field, which is reduced upon application fields. Moreover, combination luminescence along calculation allows identification band complex, ultimately related electronic properties. Compound operates luminescent thermometer 125-300 K range maximum relative thermal sensitivity ≈0.1% K-1 180 K.

Language: Английский

Citations

24
Cyanometallate framework templated synthesis of hierarchically porous La(OH)3 for High-Efficient and stable phosphorus removal from tailwater DOI

Xiaoxu Jing,

Jing Zhang, Yungui Li

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 465, P. 142789 - 142789

Published: April 4, 2023

Language: Английский

Citations

14
Proton Conductive Metal‐Organic Framework Encapsulating Emissive Hexacyanidochromate(III) Ions for Ratiometric and Lifetime‐Based Detection of Humidity and Temperature DOI
Marta Niemiec, Jakub J. Zakrzewski, Mateusz Reczyński

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract Luminescent metal‐organic frameworks (MOFs) are widely exploited as sensors due to their versatility and sensitivity external stimuli. Although there numerous luminescent MOF‐based thermometers or humidity sensors, only a few examples allow efficient detection of both these parameters. We present family MOF‐materials based on Sr 2+ Ba ions, 4,4′‐bipyridine‐ N , ’‐dioxide (4,4′‐bpdo) linkers, [M III (CN) 6 ] 3− species, described by the formulas {[Sr II 2.5 (NO 3 )][Sr (H 2 O)]}[M ]∙ n (solvent) (M = Cr ( 1 ), Co )) {[Ba (4,4′‑bpdo) 1.5 O) (NO) ][Ba (MeOH)][M ]}∙ 4 )). Among them, air‐stable phase 1a deserves main recognition reversible water vapor sorption properties, proton conductivity, dual photoluminescence (PL). This cationic MOF is constructed blue‐emissive 4,4′‐bpdo linkers while encapsulated hexacyanidochromate ions exhibit near‐infrared PL ≈800 nm. great platform for sensing relative (RH) temperature utilizing ratiometric approach intensities NIR‐emission lifetime. The optical thermometry high performance can be separated from influence RH using fully dehydrated phase, 1deh stable at 0% RH. Given that, obtained encapsulating purely inorganic molecular rubies unique example multifunctional proton‐conductive sensor temperature.

Language: Английский

Citations

0
Constructing 3D flower-like LaFe bimetal oxides with abundant mesoporous and controllable active sites for high-efficient phosphorus removal: Synthesis, mechanism, and application DOI

Xiaoxu Jing,

Yungui Li, Yi Shen

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 859, P. 160334 - 160334

Published: Nov. 19, 2022

Language: Английский

Citations

17
Lanthanide Hexacyanidoruthenate Frameworks for Multicolor to White-Light Emission Realized by the Combination of d-d, d-f, and f-f Electronic Transitions DOI Creative Commons
Tomasz Charytanowicz, Barbara Sieklucka, Szymon Chorąży

et al.

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(4), P. 1611 - 1627

Published: Jan. 19, 2023

We report an effective strategy toward tunable room-temperature multicolor to white-light emission realized by mixing three different lanthanide ions (Sm3+, Tb3+, and Ce3+) in three-dimensional (3D) coordination frameworks based on hexacyanidoruthenate(II) metalloligands. Mono-lanthanide compounds, K{LnIII(H2O)n[RuII(CN)6]}·mH2O (1, Ln = La, n 3, m 1.2; 2, Ce, 1.3; Sm, 2.4; 4, Tb, 2.4) are 3D cyanido-bridged networks the Ln–NC–Ru linkages, with cavities occupied K+ water molecules. They crystallize differently for larger 2) smaller (3, 4) lanthanides, hexagonal P63/m or orthorhombic Cmcm space groups, respectively. All exhibit luminescence under UV excitation, including weak blue 1 due d-d 3T1g → 1A1g electronic transition of RuII, as well much stronger 2 related d-f 2D3/2 2F5/2,7/2 transitions CeIII, red 3 f-f 4G5/2 6H5/2,7/2,9/2,11/2 SmIII, green 4 5D4 7F6,5,4,3 TbIII. The emissions, especially those take advantage RuII-to-LnIII energy transfer. CeIII TbIII emissions also supported excitation states. Exploring features LnIII–RuII networks, two series heterobi-lanthanide systems, K{SmxCe1–x(H2O)n[Ru(CN)6]}·mH2O (x 0.47, 0.88, 0.99, 0.998; 5–9) K{TbxCe1–x(H2O)n[Ru(CN)6]}·mH2O 0.56, 0.65, 0.93, 0.997; 10–14) were prepared. composition- excitation-dependent tuning from green, Finally, heterotri-lanthanide system K{Sm0.4Tb0.599Ce0.001(H2O)2[Ru(CN)6]}·2.5H2O (15) composition shows rich spectrum consisting peaks TbIII, SmIII centers, which gives color orange CIE 1931 xy parameters 0.325, 0.333.

Language: Английский

Citations

9