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SYNTHESIS AND CRYSTAL STRUCTURE OF A SCHIFF BASE: 2-CHLORO-4-NITRO-N-(5-BROMOSALICYLIDENE) ANILINE (C_(13)H_8BrClN_2O_3)
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作者 李大光 杨耀 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 1992年第4期312-313,共2页
The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=... The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=7.4927 (7), b=16.389(5), c=11.013(5), β=98.2(6)°, V=1338.4, Z=4, D_c=1.764g.cm^(-3), MoK_a(λ=0.71073),μ=34. 569cm^(-1), F.(000)=704, room temperature,final R=0. 053, R_w=0. 057 for 1453 reflections with I≥3σ(I). A total of 2948 in- 展开更多
关键词 合成 晶体结构 席夫碱 2-氯-4-硝基-N-(5-溴亚水杨基)苯胺 邻羟苯亚甲基
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Synthesis and Crystal Structure of Pyridine-2,6-dicarboxylate Vanadium Complex:[(Pyridine-2,6-dicarboxylate)VO_2]_2[4,4'-bipyridine]·4H_2O
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作者 朱龙根 黄锦顺 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 1994年第2期83-86,共4页
Crystal structure of pyridine-2,6-dicarboxylate(dipc) vanadium complex:[(dipc)VO_2]_2( 4, 4'-bipyridine)·4H_2O(M_r=724.34) is monoclinic with space group C2/c and a=25.857(8),b=6.896(1),c=16.267(5),β=106.27(... Crystal structure of pyridine-2,6-dicarboxylate(dipc) vanadium complex:[(dipc)VO_2]_2( 4, 4'-bipyridine)·4H_2O(M_r=724.34) is monoclinic with space group C2/c and a=25.857(8),b=6.896(1),c=16.267(5),β=106.27(4)°,V=2784.62 D_c=1.73 g/cm ̄3,F(000)=1472,Z=4.The structural solutions and refinements based on 1661 reflections (I>2σ(I))converged at R=0. 043.The coordinated number of vanadium atom is 5,the geometrical form of the five atoms are coordinated to the vanadium atom is a distorted tetragonal bipyramid of which the four coordinated atoms O(3),O(5),N(1) and O(2) make up the equatorial plane,while the other coordinated atom O(1) is to occupy the apex. 展开更多
关键词 vanadium complexes SYNTHESIS crystal structure
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CRYSTAL STRUCTURE OF [(bpy )_2Ru ( 4, 5-DIAZAFLUOREN-9-ONE][PF_6]_2
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作者 朱龙根 杨耀 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 1992年第4期239-243,共5页
V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090... V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090. There are three different Ru -N bonds of 2. 03(?), 2. 08(?) and 2. 13(?), respectively, to the two bpy and diazafluoren-9-one ligands in the complex. 展开更多
关键词 晶体结构 4 5-二氮杂芴酮 钌配合物
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STRUCTURE STUDY OF PLATINOTHIONEINS BY USING EXTENDED X—RAY ABSORBTION FINE STRUCTURE SPECTROSCOPY
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作者 BengangXing PeiHuang 《北京同步辐射装置年报》 1998年第1期68-70,共3页
关键词 EXAFS 扩展 X射线吸收精细结构 X射线晶体学 Pt7MT 铂有机化合物
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SYNTHESIS AND CRYSTAL STRUCTURE OF S—BENZYL—N—(FERRO—CENYL)METHYLIDENE
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作者 朱龙根 黄锦顺 《Chinese Journal of Structural Chemistry》 CSCD 1991年第1期77-80,共4页
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