期刊文献+
共找到10篇文章
< 1 >
每页显示 20 50 100
簇合物[Et4N]2[Mo2S4(SCH2CH2S)2]的合成及其结构研究
1
作者 刘云清 陈启元 +2 位作者 尹周澜 曾志刚 张致贵 《中国稀土学报》 CAS CSCD 北大核心 2004年第z1期398-400,共3页
以(NH4)2MoS4,Et4NBr,HSCH2CH2SH为原料,合成出[Et4N]2[Mo2S4(SCH23CH2S)2]簇合物,用X射线衍射法测定了晶胞结构.其晶胞参数为a=1.0304(8)nm,b=1.4158(8)nm,c=1.1417(1)nm,V=1.63801nm3,Z=4,晶体属单斜晶系,晶体结构经块状矩阵最小二乘... 以(NH4)2MoS4,Et4NBr,HSCH2CH2SH为原料,合成出[Et4N]2[Mo2S4(SCH23CH2S)2]簇合物,用X射线衍射法测定了晶胞结构.其晶胞参数为a=1.0304(8)nm,b=1.4158(8)nm,c=1.1417(1)nm,V=1.63801nm3,Z=4,晶体属单斜晶系,晶体结构经块状矩阵最小二乘法修正后,最终偏离因子R=0.089.此外还进行了红外光谱,紫外可见光谱的测定. 展开更多
关键词 簇合物 [et4n]2[Mo2S4(SCH2CH2S)2] 结构与性能
下载PDF
[Et_4N]_2[Fe_2S_2(Sph)_4]的晶体结构
2
作者 周朝晖 张鸿图 +1 位作者 林国栋 胡盛志 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 1989年第3期327-328,共2页
[Et_4N]_3[Fe_1S_2(Sph)_4]的合成与晶体结构已有报道,本文给出从金刚烷铁硫簇Fe_4(Sph)_(10)作为起始裂解原料,合成得到[Et_4N]_2[Fe_2S_2(Sph)_4]的单斜晶相的结构。从反应后的乙腈溶液得到片状黑色晶体,选取0.3×0.3×0.
关键词 晶体结构 et4n Fe2S2 SPH
下载PDF
簇合物[Et_4N]_8[Mo_2S_4(SCH_2CH_2S)_2]_4的合成及其结构
3
作者 刘云清 陈启元 +1 位作者 尹周澜 张致贵 《中南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2004年第4期609-612,共4页
在室温无水无氧充氮条件下,以(NH4)2MoS4,Et4NBr和HSCH2CH2SH为原料,合成[Et4N]8[Mo2S4 (SCH2CH2S)2]4簇合物,用X射线衍射法测得其晶胞参数为:a=2.6044nm,b=1.9866nm,c=2.6302nm,V=13.58581nm3,Z=4,晶体属单斜晶系。晶体结构经块状矩阵... 在室温无水无氧充氮条件下,以(NH4)2MoS4,Et4NBr和HSCH2CH2SH为原料,合成[Et4N]8[Mo2S4 (SCH2CH2S)2]4簇合物,用X射线衍射法测得其晶胞参数为:a=2.6044nm,b=1.9866nm,c=2.6302nm,V=13.58581nm3,Z=4,晶体属单斜晶系。晶体结构经块状矩阵最小二乘法修正后,最终偏离因子R=0.0887。研究结果表明,[Mo2S4(SCH2CH2S)2]2-为含Mo Mo金属健的双核阴离子;每个Mo原子被5个硫原子配位,构成近四棱锥配位的几何构型,2个四棱锥共1条底边,每个四棱锥的1个顶点被1个端基硫原子占有,形成环笼状结构。[Et4N]8[Mo2S4(SCH2CH2S)2]4簇合物红外光谱的主要特征波出现在波数为510,460,430和340cm-1处;紫外可见光谱在波长为305,380和435nm处有吸收峰出现。 展开更多
关键词 簇合物 [et4n]8[MO2S4(SCH2CH2S)2]4 结构 性能
下载PDF
[Et_4N]_2[Zn_2(OPh)_2Cl_4]的合成和晶体结构
4
作者 刘庆燕 刘平 +3 位作者 程建开 王艰 陈久桐 黄子祥 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2001年第6期512-515,共4页
ZnCl2, PhONa和Et4NCl稨2O在乙腈溶剂中反应合成了一种二核锌配合物[Et4N]2[Zn2(OPh)2Cl4]。X射线衍射结果表明,晶体属单斜晶系,C2/m空间群,晶胞参数 a = 14.1366(2), b=13.6985(5), c=9.3308(3)牛?107.851(2)o, V=1719.92(9)?,C28H50... ZnCl2, PhONa和Et4NCl稨2O在乙腈溶剂中反应合成了一种二核锌配合物[Et4N]2[Zn2(OPh)2Cl4]。X射线衍射结果表明,晶体属单斜晶系,C2/m空间群,晶胞参数 a = 14.1366(2), b=13.6985(5), c=9.3308(3)牛?107.851(2)o, V=1719.92(9)?,C28H50O2N2Zn2Cl4,Mr=721.24,Z=2,Dx=1.393g/cm3,μ(MoKα)=1.732mm—1,F(000)=756, R=0.0552, wR=0.1534, S=1.027。 配合物是由2个阳离子Et4N+和1个阴离子[Zn2(OPh)2Cl4]2—组成。阴离子[Zn2(OPh)2Cl4]2—包含着1个中心Zn2O2菱形平面。配合物中的2个锌原子通过2个苯酚中的氧原子桥连,每个锌原子还与2个氯原子配位形成变形四面体结构。 展开更多
关键词 [et4n]2[Zn2(OPh)2Cl4] 偶合反应 双核锌配合物 合成 晶体结构 环氧化物 二氧化碳 催化剂
下载PDF
CRYSTAL STRUCTURE OF (Et4N)2Pd(i-MNT)2 AND ITS REACTION WITH (Et4N)2WS4 (i-MNT=S2CC(CN)22-)
5
《Chinese Chemical Letters》 SCIE CAS CSCD 1995年第10期899-902,共4页
Et4N)2pd(i-mnt)2.fw = 647. 04, monoclinic,space group P21/c;a =9.511(1), b = 11.612(2), c=14.820(3)A,g= 94.38(1)',I'= 1631.9(5)A;7=2' D.=1.32g.cnl-;F (000)=672, R=0 0324, R. = 0'0298.Tills is a new e,\... Et4N)2pd(i-mnt)2.fw = 647. 04, monoclinic,space group P21/c;a =9.511(1), b = 11.612(2), c=14.820(3)A,g= 94.38(1)',I'= 1631.9(5)A;7=2' D.=1.32g.cnl-;F (000)=672, R=0 0324, R. = 0'0298.Tills is a new e,\alil[)le ot' X-raycharacterized Pd colllplexes with bivalent anion l,1 -dithiolato ligands an(i IIis reactioll witll(Et'N)zWS# gives (Et4N)ZWS4Pd(i-1lint). 展开更多
关键词 MNT S2CC AND CRYSTAL et4n OF REACTION STRUCTURE WITH PD WS CN ITS
下载PDF
SYNTHESIS AND STRUCTURE OF A MIXED-VALENCE HEXAMOLYBDENUM COMPLEX [Et_4N]_2[Mo_6O_(19)H_4]
6
作者 Shu Jia LI Heng Bin ZHANG +2 位作者 Shu Yun NIU Guang Di YANG Fu NIE Department of Chemistry, Institute of Theoretic Chemistry, Jilin University, Changchun, 130023 《Chinese Chemical Letters》 SCIE CAS CSCD 1992年第6期459-462,共4页
A hexamolybdenum complex, [Et_4N]_2[Mo_6O_(19)H_4] crystal, with pentavalent and hexavalent molybdenum has been obtained in the solution of DMF and CH_3OH as organic solvents using MoCl_5 as a starting material. The c... A hexamolybdenum complex, [Et_4N]_2[Mo_6O_(19)H_4] crystal, with pentavalent and hexavalent molybdenum has been obtained in the solution of DMF and CH_3OH as organic solvents using MoCl_5 as a starting material. The crystallographic parameters obtained by X-ray diffraction analysis are: crthorhombic, a=10. 757(3), b=10. 763(2), c=14. 238(4)A, =1648. 9A^3; Z=2; space group Pnnm; final R=0. 047; final Rw=0. 051^(**) 展开更多
关键词 Mo6O SYNTHESIS AND STRUCTURE OF A MIXED-VALENCE HEXAMOLYBDENUM COMPLEX H4 et4n
下载PDF
[Et_4N]_2[M_0OS_8]的合成及其组份与结构表征
7
作者 鲍时安 《九江师专学报》 1992年第5期28-30,65,共4页
本文用一定量的(NH_4)_6M_(07)O_(24)·4H_2O、(NH_4)_2S、Et_4NB_r反应合成了标题化合物,并进行了纯化处理;在此基础上采用EA、XRD、FT—IR、UV—Vis等测试方法对该化合物晶体进行了有关组份与结构表征。
关键词 [et4n][M0OS8] 合成 化学组份 结构表征 元素分析 X-射线粉末衍射分析 红外光谱分析
下载PDF
SYNTHESIS AND STRUCTURE OF A TRITHIOCARBONATO Mo(Et_4 N)_2 [(S_2)Mo_2O_2(μ-S)_2(CS_3)]
8
作者 Qiu Tian LIU Liang Ren HUANG Fujian Institute of Research on the Structure of Matter and Fuzhou Laboratory of Structural Chemistry,Chinese Academy of Sciences,Fuzhou 350002 《Chinese Chemical Letters》 SCIE CAS CSCD 1990年第2期121-122,共2页
A new trithiocarbonato Mo complex(Et_4N)_2[(S_2)Mo2O_2(μ-S)_2(CS_3)]was obtained from a system containing MoO_4^(2-),S_x^(2-),and CS_2 and characterized by IR and X-ray structural analysis. The complex crystallizes i... A new trithiocarbonato Mo complex(Et_4N)_2[(S_2)Mo2O_2(μ-S)_2(CS_3)]was obtained from a system containing MoO_4^(2-),S_x^(2-),and CS_2 and characterized by IR and X-ray structural analysis. The complex crystallizes in the (?)onoclinic space group P2_1/c with a=9.539(3)(?), b=20.745(2)(?),c=15.452(2)(?),β=94.58(2)°,and Z=4.The structure was solved by direct and difference Fourier synthesis methods.Least squares refinement using 2910 reflections with I>3σ(I)converged to R=0.054.The CS_3^(2-) iigand in the complex chelates to Mo atom and values of the C-S bond distances in the CS_3^(2-) ligend indicate a substantial contribution of three resonance forms. 展开更多
关键词 SYNTHESIS AND STRUCTURE OF A TRITHIOCARBONATO Mo S2)Mo2O2 Et4 N CS3
下载PDF
CRYSTAL STRUCTURE OF TRIMOLYBDENUM CLUSTER COMPOUND (Et_4N)[Mo_3(μ_3-O)(μ-Cl)_3-(μ-OAc)_3(Cl_(1/2),Br_(1/2))_3]
9
作者 庄鸿辉 吴鼎铭 +2 位作者 郑建基 黄建全 黄金陵 《Chinese Science Bulletin》 SCIE EI CAS 1986年第6期387-391,共5页
The crystal structures of two isomorphic cluster compounds, (C5H7S2)[Mo3-(μ3-O)(μ-Cl)3 (μ-OAc)3Cl3] and (C5H2S2)[Mo3 (μ3-O)(μ-Br)3 (μ-OAc)3Cl3] have been investigated. The compounds have been pre... The crystal structures of two isomorphic cluster compounds, (C5H7S2)[Mo3-(μ3-O)(μ-Cl)3 (μ-OAc)3Cl3] and (C5H2S2)[Mo3 (μ3-O)(μ-Br)3 (μ-OAc)3Cl3] have been investigated. The compounds have been prepared by similar procedures, with the exception that the former has used MoCl3 as the starting material, 展开更多
关键词 ISOMORPHIC exception starting BR CL et4n Mo3 OAC ETOH remaining
原文传递
PREPARATION AND CRYSTAL STRUCTURE OF FORMYLOXYL BRIDGED TRINUCLEAR MOLYBDENUM CLUSTER, (Et_4N)-[Mo_3(μ_3-O)(μ-Cl)_3(μ-O_2CH)_3Cl_3]
10
作者 林贤梯 黄金陵 黄建全 《Chinese Science Bulletin》 SCIE EI CAS 1985年第1期139-140,共2页
The title compound was prepared by dissolving 1.3g MoCl3·3H2O into 20 ml anhydrous formic acid. The solution was then heated and refluxed for half an hour. After cooling a bit, 20ml anhydrous ethanol saturated wi... The title compound was prepared by dissolving 1.3g MoCl3·3H2O into 20 ml anhydrous formic acid. The solution was then heated and refluxed for half an hour. After cooling a bit, 20ml anhydrous ethanol saturated with HCl and 0.5g (Et4N)I were added to the solution. The brown twin crystals were crystallized in three days. The formula of the product was confirmed by elemental chemical analysis. Found: Mo, 36.09; Cl, 26.84; C, 15.19; H, 3.54; N, 1.76. Calcd: Mo, 36.82; Cl, 27.21; C, 16.90; H, 2.97; N, 1.79. Diffraction work of a selected twin 展开更多
关键词 saturated heated CL et4n Mo3 O2CH l3 BROWN ethanol crystallized
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部