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152 results on '"Song, Ji-Rong"'

12. Synthesis, Crystal Structure and Non-covalent Interactions Analysis of Novel N-substituted Thiosemicarbazone

Author

Song Ji-rong, Wang Sifan, Zhang Xing, Huang Jie, Qi Fan, and Zhang Yu

Subjects
chemistry.chemical_classification, Materials science, Hydrogen bond, Intermolecular force, Stacking, Supramolecular chemistry, 02 engineering and technology, General Chemistry, Crystal structure, Triclinic crystal system, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Crystallography, chemistry, Molecule, Non-covalent interactions, 0210 nano-technology
Abstract

(E)-1-(4-Fluorobenzylidene)-4-(4-ethylphenyl)thiosemicarbazone was synthesized via the reaction of 4-(4-ethylphenyl)thiosemicarbazide and 4-fluorobenzaldehyde. The title compound was characterized by FTIR, 1H and 13C NMR, mass spectrometry and elemental analysis techniques. Structural property of the title compound was displayed by the X-ray single crystal diffraction. The title compound crystallized in triclinic space group $P\overline 1$ with a=0.6494(4) nm, b=0.7971(5) nm, c=1.5492(10) nm, α=83.690(11)°, β=84.185(10)°, γ=84.348(11)°, molecular formula C16H16FN3S, Mr=301.39, V=0.7868(9) nm3, Z=2, Dc=1.272 g/cm3, F(000)=316, μ=0.213 mm−1, S=1.02, R=0.0513, and ωR[I>2σ(I)]=0.1662. The intermolecular interactions in the crystal structure were explained using the Hirshfeld surface and their associated two-dimensional fingerprint plots. The title compound showed C—H⋯S(1−x, −y, −z) and N—H⋯S(1−x, −y, −z) intermolecular interactions, and formed the supramolecular self-assemblies through $$\overline G $$ and $${\rm{R}}_2^2(8)$$ ring motifs. Shape index and curvedness were performed to further understand some unique weak interactions, for instance, the weak π…π stacking contacts in molecular structure with different characteristic regions. Besides, the reduced density gradient(RDG) function provided a real-space function for discussing non-covalent interactions within molecule, such as hydrogen bonds, weak vdW interactions and attractive or repulsive effects.

Published
2019

18. Preventive Conservation of Thangkas in the Buddha Hall of the West Warm Chamber of the Mental Cultivation Hall, Palace Museum, Beijing

Author

Zhang Rui, Shi Ningchang, Fang Xiaoji, and Song Ji-rong

Subjects
History, Beijing, Gautama Buddha, Conservation, Ancient history
Abstract

The superb thangkas in the Buddha hall of the west warm chamber in Mental Cultivation Hall (MCH) were built in the Qianlong period (1711–1799) of the Qing dynasty, a golden age for thangkas. These ...

Published
2018

35. Clinical significance of thin cytology and HPV DNA test in diagnosing cervical disease

Author

Linnéa Ekström, Song Ji Rong, Rajina Shrestha, Dipesh Pradhan, Koun Linka, and Jasma Mally

Subjects
Pathology, medicine.medical_specialty, business.industry, virus diseases, Cervical disease, Cervical intraepithelial neoplasia, medicine.disease, female genital diseases and pregnancy complications, Hpv testing, Cytology test, Cytology, Screening method, Medicine, Clinical significance, Human papillomavirus, business
Abstract

Objectives: To evaluate the sensitivity and accuracy of the HPV DNA test in conjunction with Thinprep cytology test as a screening method of human papillomavirus (HPV)

Published
2013

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