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Hace 4 días · Spin crossover cobalt(II) complexes exhibiting temperature- and concentration-dependent optical changes in solution N. Izumiyama, S. Fujii, K. Kato, R. Tokunaga, S. Hayami and M. Nakaya, Dalton Trans., 2024, Accepted Manuscript , DOI: 10.1039/D4DT00433G This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Hace 5 días · The complexes of iron(II) [15, 16] and cobalt(II) [17, 18] ions experiencing the spin transition were studied most widely. The latter complex can exist in two spin states: the low-spin state with the total electron spin quantum number S = 1/2 and the high-spin state with S = 3/2.
Hace 5 días · The less sterically hindered dimethylated complex exhibits two-step thermally-induced interconversion between the high-spin CoII-seminquinonate and low-spin CoIII-catecholate forms (valence tautometrism) at 155 and 95 K due to the presence of two symmetry-independent complexes.
Hace 23 horas · A cobalt-based layered MOF ([Co 2 (μ-SO 4)(Hppza) 2 (H 2 O) 3] n (SEU-1) has been successfully constructed and comprehensively characterized. The maximum specific capacitance of SEU-1 is 145.5 F g −1 at 1 A g −1 , along with the specific capacitance retention of 92.7 % at the current density of 5 A g −1 after 6000 cycles in 3 M KOH solution, suggesting SEU-1 can be applied to high ...
Hace 23 horas · Here, we report the chemoselective hydrogenation of α,β-unsaturated ketones catalyzed by a well-defined Mn(I) PCNHCP pincer complex [(PCNHCP)Mn(CO)2H] (1). The reaction is compatible with a wide variety of functional groups that include halides, esters, amides, nitriles, nitro, alkynes, and alkenes, and for most substrates occurs readily at ambient hydrogen pressure (1–2 bar). Mechanistic ...
Hace 2 días · Therefore, thermodynamic equilibrium equations, particle growth equations in a co-precipitation system are established, and CFD simulations are also done here. The reaction equation for the co-precipitation of nickel–cobalt–manganese ternary precursor in a crystallizer to form hydroxide precipitates is shown in Equations S1–S3 .
Hace 5 días · (c) The following equation shows two different cobalt complexes in equilibrium. The forward reaction is exothermic and is carried out in a test tube at room temperature. [CoCl 4] 2-(aq) + 6H 2 O (l) ⇌ [Co(H 2 O) 6] 2+ (aq) + 4Cl - (aq) blue pink Explain, using equilibrium principles, the effect on the position of the equilibrium and the observed changes when: (i) the test tube containing the ...
