HPLC of Formula: 1195-59-1In 2019 ,《Regulation of magnetic relaxation behavior by replacing 3d transition metal ions in [M2Dy2] complexes containing two different organic chelating ligands》 appeared in Dalton Transactions. The author of the article were Wang, Hui-Sheng; Yin, Cheng-Ling; Hu, Zhao-Bo; Chen, Yong; Pan, Zhi-Quan; Song, You; Zhang, Yi-Quan; Zhang, Zai-Chao. The article conveys some information:
Four tetranuclear 3d-4f complexes, namely [Fe2Ln2(L)2(teaH)2(Cl)2](NO3)2·4CH3CN (H2L = N1,N3-bis(3-methoxysalicylidene)diethylenetriamine, teaH3 = triethanolamine, Ln = Dy for 1 and Ln = Gd for 1′) and [Co2Ln2(L)2(pdm)2(CH3COO)2(CH3OH)2](NO3)2·xCH3OH·yH2O (pdmH2 = 2,6-pyridinedimethanol, Ln = Dy, x = 5 and y = 2.5 for 2 and Ln = Gd, x = 6 and y = 1.5 for 2′), are reported. Two FeIII and two DyIII in 1 formed a zigzag Fe1-Dy1-Dy1a-Fe1a arrangement with a Fe1-Dy1-Dy1a angle of 105.328(3)°. However, in contrast to 1, two CoIII and two DyIII ions in 2 formed a more linear Co1-Dy1-Dy1a-Co1a arrangement with a Co1-Dy1-Dy1a angle of 141.86(2)°. Addnl., two DyIII ions in 1 are eight-coordinated with a triangular dodecahedron geometry, while two DyIII ions in 2 adopt nine-coordination with a muffin geometry. Magnetic studies revealed slow magnetic relaxation behavior for 1, with an energy barrier Ea of 6.9 K. For 2, single mol. magnet behavior was presented under a zero d.c. field with an effective energy barrier Ueff of 64.0(9) K. Ab initio calculations for 1 and 2 indicate that compared to 2, complex 1 has a larger transversal magnetic moment of its ground Kramers doublets (KD) and a larger value of the tunneling parameter (Δt) for the exchanged coupled ground state, which may result in poor single mol. magnet behavior for 1.2,6-Pyridinedimethanol(cas: 1195-59-1HPLC of Formula: 1195-59-1) was used in this study.
2,6-Pyridinedimethanol(cas: 1195-59-1) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.HPLC of Formula: 1195-59-1
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