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Your search keyword '"Cao, Zi-Ping"' showing total 9 results
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9 results on '"Cao, Zi-Ping"'

8. Synthesis and Crystal Structure of (5-Methyl-3-phenyl-1H-pyrazol-1-yl)-[5-(p-tolylamino)-2H-1,2,3-triazol-4-yl]methanone.

Author

Cao, Zi-Ping, Dong, Hong-Ru, Shen, Guo-Liang, and Dong, Heng-Shan

Subjects
*ORGANIC synthesis, *MOLECULAR structure, *NUCLEAR magnetic resonance spectroscopy, *SPACE groups, *X-ray diffraction, *PYRAZOLES, *TRIAZOLES, *FURANS
Abstract

(5-Methyl-3-phenyl-1 H-pyrazol-1-yl)-[5-( p-tolylamino)-2 H-1,2,3-triazol-4-yl]methanone was synthesized and characterized by 1H NMR, MS and IR spectra data. The structure of title compound was identified by X-ray diffraction. Compound, C 20H 18N 6O, Mr = 358.40, crystallizes in the triclinic space group P- 1 with unit cell parameters a = 10.303(6), b = 12.489(7), c = 15.305(9) Å, α = 108.489(12), β = 101.920(11), γ = 96.971(13)°, V = 1790.0(17) Å 3, Z = 4, Dx = 1.330 mg/cm 3. The final R was 0.0520. Graphical Abstract: (5-Methyl-3-phenyl-1H-pyrazol-1-yl)-[5-(p-tolylamino)-2H-1,2,3-triazol-4-yl]methanone was synthesized. [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]

Published
2010
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9. New Lead-Free Ferroelectric Materials for High-Temperature Applications: Nb-Doped Bi3.5Nd0.5Ti3 O12

Author

Cao, Zi Ping, Ding, Ai Li, He, Xi Yun, Zhang, Y., and Zeng, X.

Abstract

Bi3.5Nd0.5Ti3O12 (BNT) ferroelectrics modified with different concentrations of Nb are prepared by a hot-pressing method. XRD diffraction shows that all samples have only a layeredstructured pervoskite phase. Raman spectra confirm that the crystal symmetry change locally when increasing Nb concentration. It is found that the introduction of a suitable amount of Nb can enhance the remnant polarization of BNT. The temperature dependence of dielectric constant is also investigated in BNT ceramics. All samples have high Curie temperature above 530°C.

Published
2007
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