In 2022,Kuhne, Irina A.; Ozarowski, Andrew; Sultan, Aizuddin; Esien, Kane; Carter, Anthony B.; Wix, Paul; Casey, Aoife; Heerah-Booluck, Mooneerah; Keene, Tony D.; Muller-Bunz, Helge; Felton, Solveig; Hill, Stephen; Morgan, Grace G. published an article in Inorganic Chemistry. The title of the article was 《Homochiral Mn3+ Spin-Crossover Complexes: A Structural and Spectroscopic Study》.Recommanded Product: 673-22-3 The author mentioned the following in the article:
Structural, magnetic and spectroscopic data on a Mn3+ spin crossover complex with Schiff base ligand 4-OMe-Sal2323, isolated in crystal lattices with five different counteranions, are reported. Complexes of [Mn(4-OMe-Sal2323)]X where X = ClO4- (1), BF4- (2), NO3- (3), Br- (4) and I- (5) crystallize isotypically in the chiral orthorhombic space group P21212 with a range of spin state preferences for the [Mn(4-OMe-Sal2323)]+ complex cation over the temperature range 5-300 K. Complexes 1 and 2 are high spin, complex 5 undergoes a gradual and complete thermal spin crossover, while complexes 3 and 4 show stepped crossovers with different ratios of spin triplet and quintet forms in the intermediate temperature range. High field ESR was used to measure the zero-field splitting parameters associated with the spin triplet and quintet states at temperatures below 10 K for complexes 4 and 2 with resp. values: Ds=1 = +23.38(1) cm-1, ES=1 = +2.79(1) cm-1 and DS=2 = +6.9(3) cm-1, with a distribution of E parameters for the S = 2 state. Solid state CD (CD) spectra on high spin complex 1 at room temperature reveal a 2:1 ratio of enantiomers in the chiral conglomerate, and solution CD measurements on the same sample in methanol show that it is stable toward racemization. Solid state UV-vis absorption spectra on high spin complex 1 and mixed S = 1/S = 2 sample 5 reveal different intensities at higher energies, in line with the different electronic composition The statistical prevalence of homochiral crystallization of [Mn(4-OMe-Sal2323)]+ in five lattices with different achiral counterions suggests that the chirality may be directed by the 4-OMe-Sal2323 ligand. In the part of experimental materials, we found many familiar compounds, such as 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3Recommanded Product: 673-22-3)
2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is the main component of root bark essential oil of Periploca sepium Bunge. It is a potential tyrosinase inhibitor present in African medicinal plants. 2-Hydroxy-4-methoxybenzaldehyde was used in the synthesis of Schiff base ligand.Recommanded Product: 673-22-3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem