Switching the magnetic hysteresis of an [Feii–NC–Wv]-based coordination polymer by photoinduced reversible spin crossover

Zhao, Liang; Meng, Yin‐Shan; Liu, Qiang; Sato, Osamu; Shi, Quan; Oshio, Hiroki; Liu, Tao

doi:10.1038/s41557-021-00695-1

Cited by 80 publications

(80 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the slow magnetic relaxation in the spin crossover or metal-metal electron transfer complexes can be easily on/off switched via alternative light [32]. By comparison, SMM behaviors in the photochromic Ln-based SMMs could only be slightly tuned in the effective energy barrier and magnetic relaxation time.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a Dy-based photochromic complex with photogenerated radical-actuated SMMs was realized in our previous work [30], showing the first example of SMMs in electron transfer photochromic materials. This motivates us to further explore the possibility of tunable SMMs via electron transfer photochromic complexes [32][33][34][35][36][37][38]. Especially, it is a challenging but interesting issue for switching off SMMs in these photochromic system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electron transfer photochromism of Ln-based (Ln = Dy, Tb) coordinated polymers for reversibly switching off/on single-molecule magnetic behavior

Zhang

Han

et al. 2021

Sci. China Mater.

View full text Add to dashboard Cite

Switching on/off single-molecule magnets (SMMs) at room temperature is still a challenge in moleculebased magnets. Herein, two photochromic Ln-based (Ln = Dy, Tb) phosphonate coordinated polymers were synthesized with regulable SMM behavior. The reversible room-temperature photo-coloration was an electron transfer process with a generation of relatively stable radicals, characterized by structural analyses, ultraviolet-visible, luminescence and electron spin resonance spectra and magnetic measurements. Importantly, owing to the antiferromagnetic coupling interactions between Ln 3+ ions and photogenerated radicals, the room-temperature light irradiation surprisingly switched off the SMM behavior, showing the first example of radicalquenched SMMs in the molecule-based magnets. Moreover, the silient SMM behavior could be recovered after eliminating photogenerated radicals via heat treatment, showing a reversible off/on switch of SMMs via light and heat. This work constructs a system for switching off/on SMMs through electron transfer photochromism, providing a visual operation way via naked-eye-detectable coloration for the switchable SMMs.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electron transfer photochromism of Ln-based (Ln = Dy, Tb) coordinated polymers for reversibly switching off/on single-molecule magnetic behavior

Zhang

Han

et al. 2021

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…Switchable MOF magnets, [86][87][88] whose magnetic properties can be reversibly changed by light [89][90][91] or gas sorption, [92] have promising potential for applications as an active layer in volatile magnetic memory devices. Generally, the magnetic bistability of specific MOFs results from the high flexibility of their electronic states and, rarely, the structures.…”

Section: Mof Magnetsmentioning

confidence: 99%

“…The same authors also utilized LIESST effect for reversible optical switching of chiral 3D cyano-bridged FeNb bimetallic assembly (Fe 2 [Nb(CN) 8 ](4-bromopyridine)8 2H 2 O) between paramagnetic and ferrimagnetic phases, characterized by different intensities and polarizability of second harmonic generation. [90] Utilizing cyanide-bridged [Fe II -W V ] coordination chains linked together through rigid bis(imidazolyl)-benzene ligands, Tao Liu et al [91] reported the other MOF magnet. At 1.8 K, under 808-nm-light irradiation, magnetic interactions between the photogenerated paramagnetic high-spin Fe II and the W V centers lead to long fragments that exhibit single-chain magnet behavior, with a wide magnetic hysteresis and a large coercive field of 19 kOe.…”

Section: Mof Magnetsmentioning

confidence: 99%

MOF‐Based Sustainable Memory Devices

Kulachenkov

Haar

Шипиловских

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Data storage, processing, and communications are the backbone of the digital world and focus the innovation efforts of the microelectronics industry. Recent raw material shortages, however, have revealed the danger of sourcing for the digital industry. At a time of a significant increase in demand for data storage systems, it is urgent to consider the sustainability of the resources used for devices. By diluting inorganic elements in an organic matrix, metal-organic frameworks (MOFs) are of substantial interest for sustainable technologies. Moreover, they have shown great potential as active materials for electronic, optical, and magnetic memory devices, paving the way to accessible, sustainable, and recyclable microelectronic devices. Based on the number of fundamental studies of the bistability of MOFs, their scalability, recyclability, and low energy consumption, MOFs are highlighted as sustainable materials for a new generation of memristive devices. Finally, considering the "green" chemistry of specific MOF, their flexibility, as well as the market of microelectronics and mineral consumption, the future development of MOF-based memory devices and socio-economic profits from their utilization is predicted.

show abstract

“…Photoswitchable SCO systems have attracted more and more interest due to its applications in various properties, such as the design and synthesis of photomagnet, [ 93 ] chiral optical switching magnet. [ 94 ] Interestingly, the light‐induced magnetic response can be enforced by applying external mechanical pressure in a nonphotomagnet.…”

Section: Applications Of Cyanide‐based Porous Materialsmentioning

confidence: 99%

Old Materials for New Functions: Recent Progress on Metal Cyanide Based Porous Materials

2021

View full text Add to dashboard Cite

Cyanide is the simplest ligand with strong basicity to construct open frameworks including some of the oldest compounds reported in the history of coordination chemistry. Cyanide can form numerous cyanometallates with different transition metal ions showing diverse geometries. Rational design of robust extended networks is enabled by the strong bonding nature and high directionality of cyanide ligand. By virtue of a combination of cyanometallates and/or organic linkers, multifunctional framework materials can be targeted and readily synthesized for various applications, ranging from molecular adsorptions/separations to energy conversion and storage, and spin-crossover materials. External guest-and stimuli-responsive behaviors in cyanide-based materials are also highlighted for the development of the next-generation smart materials. In this review, an overview of the recent progress of cyanide-based multifunctional materials is presented to demonstrate the great potential of cyanide ligands in the development of modern coordination chemistry and material science.

show abstract

Switching the magnetic hysteresis of an [Feii–NC–Wv]-based coordination polymer by photoinduced reversible spin crossover

Cited by 80 publications

References 55 publications

Electron transfer photochromism of Ln-based (Ln = Dy, Tb) coordinated polymers for reversibly switching off/on single-molecule magnetic behavior

Electron transfer photochromism of Ln-based (Ln = Dy, Tb) coordinated polymers for reversibly switching off/on single-molecule magnetic behavior

MOF‐Based Sustainable Memory Devices

Old Materials for New Functions: Recent Progress on Metal Cyanide Based Porous Materials

Contact Info

Product

Resources

About