Single molecule magnetic behavior and photo-enhanced proton conductivity in a series of photochromic complexes

One-Dimensional Chain Viologen-Based Lanthanide Multistimulus-Responsive Materials with Photochromism, Photoluminescence, Photomagnetism, and Ammonia/Amine Vapor Sensing

“…To sum up, the static and dynamic magnetic properties of the sample before and after irradiation displayed obvious differences. However, this significant change is also quite rare in the existing reported lanthanide CPs based on viologen and the same type of photochromic materials based on electron transfer . In analogous work on lanthanide photomagnets reported by Wang and co-workers, the dc magnetic susceptibility test showed that the χ M T values decreased by 11.24 and 5.14%, , respectively.…”

“…However, this significant change is also quite rare in the existing reported lanthanide CPs based on viologen 56 and the same type of photochromic materials based on electron transfer. 57 In analogous work on lanthanide photomagnets reported by Wang and co-workers, the dc magnetic susceptibility test showed that the χ M T values decreased by 11.24 and 5.14%, 47,53 respectively. The χ M T values in this work decreased by 7.09%, a significant dc magnetic susceptibility change, implying that 1-Dy exhibits good photomagnetic properties.…”

“…Despite the alternating current susceptibilities measurement on the Dy-based SMMs did not display obvious frequency-dependent peaks, which is most likely due to the unfavorable local coordination environment surrounding the Dy center. Also, the difference in ac susceptibilities of χ″ signals for 1-Dy under an applied dc field related to the positive impact of the photogenerated radicals on the dynamic magnetic relaxation is obvious, which is rarely observed in the same type of lanthanide photochromic CPs based on viologen and even for other electron transfer lanthanide photochromic materials as well. ,,,− …”

Photochromic Dy-Phosphonate Assembled by a Pyridine Derivative: Synthesis, Structure, and Light-Enhanced Room-Temperature Phosphorescence

“…The distances of Dy−O bonds are measured from 2.257(3) to 2.663(3) Å, and the O−Dy−O angles are in the scope of 67.39 (9) to 147.31(13)°, which all match well with those of the related compounds. 38,39 Each H 2 -HEDP ligand adopts the μ 2 -η 0 :η 1 :η 1 :η 0 :η 1 :η 1 :η 0 mode to connect a pair of Dy(III) ions (the first η is the connecting fashion of the hydroxyl, and the others are the linking styles of two −PO 3 groups of H 2 -HEDP) to furnish an infinite Dy-H 2 -HEDP chain with a Dy−Dy separation of 4.925−5.033 Å (Figure S2). As shown in Figure 1b, adjacent 1D chains arrange orderly with an interchain distance of 11.547 Å, with the free protonated H 3 -TPA cations and H 4 -HEDP molecules being located between them to form arrays.…”

Opening magnetic hysteresis via improving the planarity of equatorial coordination by hydrogen bonding

“…22 In addition, some of the nanoscale molecular magnets containing Ln–OP exhibit magnetodielectric effects, 23 reversible magneto-optical properties, 24 and photomagnetism phenomena. 25 Unfortunately, there are a few studies on magnetic materials with bis-phosphine oxides. 22…”