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Akademický článek

Crystal structure of (R)-N, N ′-dimethyl-[1, 1′-binaphthalene]-2, 2′-diamine, C22H20N2

Autor: Jiang Jinke, Li Xue, Wang Guangyao, Jiang Hui

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures, Vol 239, Iss 4, Pp 799-801 (2024)

C22H20N2, orthorhombic, P212121 (no. 19), a = 13.4475(3) Å, b = 14.6000(3) Å, c = 17.3708(4) Å, V = 3,410.47(13) Å3, Z = 8, R gt(F) = 0.0414, wR ref(F 2) = 0.1026, T = 173(2) K.

Externí odkaz: https://doaj.org/article/85661a1b4c514ad9bb4f80486ce7473e

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Akademický článek

Crystal structure of tris(hexafluoroacetylacetonato-κ2O,O′) bis(triphenylphosphine oxide-κ1O)samarium(III), C51H33F18O8P2Sm

Autor: Li Wanbin, Jiang Jinke, Wang Xin, Liu Qiang

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures, Vol 239, Iss 4, Pp 787-789 (2024)

C51H33F18O8P2Sm, monoclinic, P21/c (no. 14), a = 12.8193(9) Å, b = 13.4721(8) Å, c = 30.280(2) Å, β = 91.227(3)°, V = 5,228.2(6) Å3, Z = 4, R gt(F) = 0.0370, wR ref(F 2) = 0.1025, T = 100.0 K.

Externí odkaz: https://doaj.org/article/ef4a6eefc08641e49f0aa89a0a7237b5

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Akademický článek

Crystal structure of 4-amino-3,5-dibromobenzonitrile, C7H4Br2N2

Autor: Jiang Jinke, Jiang Hui

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures, Vol 239, Iss 3, Pp 523-524 (2024)

C7H4Br2N2, monoclinic, C2/c (no. 15), a = 42.364(10) Å, b = 3.9052(4) Å, c = 23.783(3) Å, β = 120.984(9)°, V = 3373.2(10) Å3, Z = 16, Rgt (F) = 0.0415, wRref (F 2) = 0.1073, T = 298 K.

Externí odkaz: https://doaj.org/article/49c0e655a7cc41908115e0fbbad1849b

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Akademický článek

Crystal structure of (4-bromobenzyl)triphenylphosphonium bromide ethanol solvate, C52H48Br4OP2

Autor: Jiang Jinke, Jiang Hui

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures, Vol 239, Iss 3, Pp 495-496 (2024)

C52H48Br4OP2, orthorhombic, Pccn (no. 56), a = 20.173(5) Å, b = 12.224(3) Å, c = 18.858(5) Å, V = 4650.2(19) Å3, Z = 4, Rgt (F) = 0.0395, wRref (F 2) = 0.0906, T = 289(2) K.

Externí odkaz: https://doaj.org/article/74d4c587cb6d4b12b4cf98d3e2c35256

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Akademický článek

Crystal structure of tetracene-5,12-dione, C18H10O2

Autor: Zheng Xiaoxin, Jiang Jinke, Liu Yang

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures, Vol 238, Iss 4, Pp 717-718 (2023)

C18H10O2, orthorhombic, P212121 (no. 19), a = 3.95660(10) Å, b = 12.2859(3) Å, c = 24.5014(6) Å, V = 1191.02(5) Å3, Z = 4, Rgt ${R}_{gt}$ (F) = 0.0609, wRref $w{R}_{ref}$ (F 2) = 0.1660, T = 302(2) K.

Externí odkaz: https://doaj.org/article/c2a9db2b00754644a229684781d6b2bf

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Akademický článek

Topological Modification of a Helical Gear with Circular Tooth Profile in Gear Cutter and Tooth Drum-shaped

Autor: Zhang Xijin, Jiang Jinke, Jia Chao, Hou Xiangying, Yang Qian

Publikováno v: Jixie chuandong, Vol 42, Pp 7-10 (2018)

The gear modification is an important technique to improve gear transmission performance. A new topological modification method with circular tooth profilein gear cutter and tooth drum-shaped is put forward. Based on the gear meshing theory and the t

Externí odkaz: https://doaj.org/article/a6327994cef644068f430d4ba4781d44

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Akademický článek

OPTIMAL DESIGN OF MODIFIED SPUR GEARS BASED ON MINIMUM FLASH TEMPERATURE

Autor: YU DongYang, JIANG JinKe, SONG Qiang, FANG ZongDe

Publikováno v: Jixie qiangdu, Vol 39, Pp 821-825 (2017)

Considering the installation error and tooth flank clearance of modified involute cylindrical gears influencing on load density,oil film thickness,and local friction coefficient.an optimum design method based on the minimum flash temperature was prop

Externí odkaz: https://doaj.org/article/73cb6ed3f5614c83b0bb163ca75de86f

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