A neodymium complex with 3, 4, 5 - triethoxybenzoic acid and 1,10-phenanthroline

The novel complex [Nd(3,4,5-TEOBA).sub.3phen].sub.2(3,4,5-TEOBA = 3,4,5-triethoxybenzoate; phen = 1,10-phenanthroline) has been synthesized and characterized by elemental analysis, IR spectra, single-crystal X-ray diffraction, and thermogravimetry/differential scanning calorimetry-Fourier transform...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2019-02, Vol.135 (4), p.2583-2590
Main Authors: Qi, Xiao-Xia, Shi, Quan, Ren, Ning, Zhang, Jian-Jun
Format: Article
Language:English
Subjects:
Calorimetry
Chemical analysis
Coordination compounds
Crystals
Curve fitting
Differential scanning calorimetry
Diffraction
Empirical analysis
Ethylenediaminetetraacetic acid
Fourier transforms
Infrared analysis
Infrared spectroscopy
Magnetic alloys
Mathematical analysis
Measuring instruments
Neodymium
Nitrogen
Nitrogen atoms
Oxygen atoms
Single crystals
Specific heat
Thermal decomposition
Thermogravimetric analysis
Thermogravimetry
X-ray diffraction
X-rays
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Summary:The novel complex [Nd(3,4,5-TEOBA).sub.3phen].sub.2(3,4,5-TEOBA = 3,4,5-triethoxybenzoate; phen = 1,10-phenanthroline) has been synthesized and characterized by elemental analysis, IR spectra, single-crystal X-ray diffraction, and thermogravimetry/differential scanning calorimetry-Fourier transform infrared (TG/DSC-FTIR) technology. Single-crystal X-ray diffraction data show the complex has two center metals, and each center is coordinated by seven oxygen atoms and two nitrogen atoms to form a distorted monocapped square antiprism geometry. The binuclear molecular skeleton connects together to form a 1D chain via stacking [pi]-[pi] interactions. The thermal decomposition mechanism of the title complex has been studied by TG/DSC-FTIR technology. The low-temperature heat capacity of the complex has been measured using a physical property measurement system in the temperature range from 1.9 to 300 K. The heat capacity was fitted to a series of theoretical and empirical models, and the thermodynamic functions were calculated based on the curve fitting.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-018-7269-9