Study on Novel Structure of Glycolic and Oxalic Acid Holmium: [Ho (C3 H6O9)]·CH3OH
In the study of functional materials, more attention is the construction of organic–inorganic hybrid materials with structural diversity, fascinating properties, and potential applications in catalysis, molecular adsorption, medicine, electro-conductivity, magnetism and photochemistry. At present, the research work in upconversion emission in rare-earth doping materials has been greatly increased. Yb3+ and Ho3+ upconversion energy transfer is attractive, because Yb3+ and Ho3+ upconversion energy transfer is relatively simple compared to upconversion involving other rare-earth ions. In this paper, a novel holmium complex [Ho (C3 H6O9)] •CH3OH has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Ho atom is coordinated by eight O atoms. The molecular is antisymmetric structure by the C2-C2 axis. The molecular structure stabilized by the O-H…O hydrogen-bonding interactions.
Chunliang Zhang and Liangchi Zhang
H. X. Liu et al., "Study on Novel Structure of Glycolic and Oxalic Acid Holmium: [Ho (C3 H6O9)]·CH3OH", Key Engineering Materials, Vols. 531-532, pp. 417-420, 2013