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Nd(OH)_3 particles sized of nanometer have been prepared using the different methods. The obtained neodymium hydroxide samples were investigated using the enhanced electronic Raman spectroscopy, X-ray diffraction, transmission electron microscopy, as well as field emission electron microscopy. Observable changes in electronic Raman bands were found among the electronic Raman spectra of Nd(OH)_3 particles which formed under different physical-chemical conditions. Compared to the difference of the X-ray diffraction paterns, it suggests that the change of size and morphology of Nd(OH)_3 particles occurs with subtle variation on the coordination environment around the neodymium ions, while the X-ray diffraction indicates the different long-ranged ordered structure of the Nd(OH)_3 particles. Furthermore, the selected area electron diffraction (SAED), which manifests several crystal cells orientation, shows that the obtained Nd(OH)_3 particles are of the same hexagonal symmetry of Nd(OH)_3. Therefore, the X-ray diffraction, selected area electron diffraction (SAED) and enhanced electronic Raman spectroscopy reflect different levels of structure of neodymium hydroxide in morphological, crystalline, and coordination environment. At certain extent, the subtle variation of coordination structure may account for the special physical-chemical properties of nanometer materials. The enhanced electronic Raman spectroscopy could be a new probe to study the subtle variation of the physical-chemical properties of nanometer materials.
Nd (OH) _3 particles sized nanometer have been prepared using the different methods. The resulting neodymium hydroxide samples were investigated using the enhanced electronic Raman spectroscopy, X-ray diffraction, transmission electron microscopy, as well as field emission electron microscopy. Observable changes In electronic raman bands were found among the electronic Raman spectra of Nd (OH) _3 particles which formed under different physical-chemical conditions. Compared to the difference of the X-ray diffraction paterns, it suggests that the change of size and morphology of Nd (OH) _3 particles occurs with the subtle variation on the coordination environment around the neodymium ions, while the X-ray diffraction indicates the different long-ranged ordered structure of the Nd (OH) _3 particles. Furthermore, the selected area electron diffraction (SAED ), which manifests several crystal cells orientation, shows that the obtained Nd (OH) _3 particles are of the same hexagonal symmetry of Nd (OH) _3. The X-ray diffraction, selected area electron diffraction (SAED) and enhanced electronic Raman spectroscopy reflect different levels of structure of neodymium hydroxide in morphological, crystalline, and coordination environment. At certain extent, the subtle variation of coordination structure may account for the special physical-chemical properties of nanometer materials. The enhanced electronic Raman spectroscopy could be a new probe to study the subtle variation of the physical-chemical properties of nanometer materials.