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Your search keyword '"Zhao, Ying-Xian"' showing total 19 results
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19 results on '"Zhao, Ying-Xian"'

1. Crystal structure of tetraaqua-bis(((4-chlorophenyl)sulfonyl)glycinato-κO)cobalt(II) dihydrate, C16H26Cl2CoN2O14S2

Author

Liu Zheng-Jun, Chen Xiao-Miao, Wu Qiang, Zhang Yu-Tao, Zhou Wu-Chao, Wei Li, and Zhao Ying-Xian

Subjects
1881201, Physics, QC1-999, Crystallography, QD901-999
Abstract

C16H26Cl2CoN2O14S2, monoclinic, P21/n (no. 14), a = 5.3261(4) Å, b = 39.755(2) Å, c = 6.2518(4) Å, β = 96.880(6)∘, V = 1314.21(15) Å3, Z = 2, Rgt(F) = 0.0487, wRref(F2) = 0.1040, T = 153(2) K.

Published
2023
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3. Crystal structure of tetraaqua-bis(((4-chlorophenyl)sulfonyl)glycinato-κO)cobalt(II) dihydrate, C16H26Cl2CoN2O14S2.

Author

Liu, Zheng-Jun, Chen, Xiao-Miao, Wu, Qiang, Zhang, Yu-Tao, Zhou, Wu-Chao, Wei, Li, and Zhao, Ying-Xian

Subjects
CRYSTAL structure, COBALT
Abstract

C16H26Cl2CoN2O14S2, monoclinic, P21/n (no. 14), a = 5.3261(4) Å, b = 39.755(2) Å, c = 6.2518(4) Å, β = 96.880(6)∘, V = 1314.21(15) Å3, Z = 2, Rgt(F) = 0.0487, wRref(F2) = 0.1040, T = 153(2) K. [ABSTRACT FROM AUTHOR]

Published
2023
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16. Effects of Reaction Temperature on Hydrocracking of Asphaltene over NiMo/γ-Al2O3

Author

Zhao, Ying Xian and Shen, Bo

Abstract

The hydrocracking of a pentane-insoluble asphaltene over NiMo/γ-Al2O3 at 623 - 703 K was investigated. The second order kinetic equation fits experimental data of asphaltene conversion adequately, giving the apparent activation energy to be 144 kJ/mol over the temperature range. Average molecular weight of liquid product was reduced significantly with increasing temperature.

Published
2011
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17. Kinetic Study of NO Oxidation over Pt/?-Al2O3 and La0.8 Sr 0.2MnO3

Author

Zhao, Ying Xian and Xiao, Lin

Abstract

Catalytic oxidation of NO with O2 over Pt/?-Al2O3 and La0.8Sr0.2MnO3 was conducted with a tubular reactor in range of space time 0.090-0.720 second, inlet NO concentration 0.03-0.2 vol%, O2 concentration 2-10 vol% and at 473 K. Under the conditions of 0.720 s space time, 0.05 vol% NO and 5 vol% O2 concentrations, the steady-state conversion of NO oxidation over Pt/?-Al2O3 and La0.8Sr0.2MnO3 reached 22.4 and 90.5 %, respectively. A kinetic model consisting of 12 elementary reactions fits the experimental data adequately, indicated that the rate-limiting step of NO oxidation over Pt/?-Al2O3 was the reaction between gaseous NO with dissociately adsorbed O, and over La0.8Sr0.2MnO3 was the desorption of product NO2.

Published
2011
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18. Crystal structure of tetraaqua-bis(((4-chlorophenyl)sulfonyl)glycinato-κO)cobalt(II) dihydrate, C16H26Cl2CoN2O14S2.

Author

Liu, Zheng-Jun, Chen, Xiao-Miao, Wu, Qiang, Zhang, Yu-Tao, Zhou, Wu-Chao, Wei, Li, and Zhao, Ying-Xian

Subjects
*CRYSTAL structure, *COBALT
Abstract

C16H26Cl2CoN2O14S2, monoclinic, P21/n (no. 14), a = 5.3261(4) Å, b = 39.755(2) Å, c = 6.2518(4) Å, β = 96.880(6)∘, V = 1314.21(15) Å3, Z = 2, Rgt(F) = 0.0487, wRref(F2) = 0.1040, T = 153(2) K. [ABSTRACT FROM AUTHOR]

Published
2023
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19. Synthesis and herbicidal activity of 4, 8-DHT and its derivates.

Author

Yang, Li, Ruan, Xiao, Zhang, Jin-yun, Li, Xian-xian, Zhao, Ying-xian, Wang, Qiang, Zhang, Jian-hong, Sheng, Zhe-liang, Yu, Min-fen, and Zheng, Bing-song

Subjects
*ALLELOPATHIC agents, *HERBICIDES, *CHEMOSYNTHESIS (Biochemistry), *CHROMATOGRAPHIC analysis, *PLANT hormones
Abstract

The chemosynthesis and potential as green herbicides of 4,8-dihydroxy-1-tetralone (4, 8-DHT) and its derivates were emphatically addressed in this study. Firstly, the synthesis of 4, 8-DHT from commercially available material 1, 5-dihydroxynaphthalene was carried out through a novel route of five reaction steps. Then, its five derivates including 4-benzoyl-8-hydroxy-1-tetralone, 4-(3-hydroxypropoxy)- 8-hydroxy-1- tetralone, 4-(2,3-dihydroxypropoxy)-8-hydroxy-1-tetralone, 4-hydroxy-8-(3-hydroxy propoxy) −1-tetralone and 4-hydroxy-8-(2,3-dihydroxypropoxy)-1- tetralone were prepared by modifying alcoholic and phenolic hydroxyl in C-4 and C-8 position of 4,8-DHT molecular structure. After that, these synthesized compounds were examined for their toxicity against six kinds of weeds ( Lolium perenne , Phalaris arundinacea , Elymus dahuricus , Cichorium intybus , Sorghum sudanense , and Trifolium repens ) in vitro. In general, high concentration could generally inhibit while low concentration might promote the growth of weeds. Among these compounds, 4-(3-hydroxypropoxy)-8 −hydroxy-1-tetralone and 4-hydroxy-8- (3-hydroxypropoxy) −1-tetralone showed significant phytotoxic activities against the six tested weeds, while 4-hydroxy-8-(2,3-dihydroxypropoxy) −1-tetralone was less toxic. For all the six tested weeds, E. dahuricus appeared the most sensitive to the treatments of 4, 8-DHT compounds. Hence, it has been suggested that variables including compound type and concentration as well as weed species should be seriously considered in order to develop and utilize the group of 4, 8-DHT compounds as herbicide in future. [ABSTRACT FROM AUTHOR]

Published
2018
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