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1.
This paper introduces the preparation method of single crystal and the molecular structure of ammonium picrate.The obtained results show that the crystal of ammonium picrate belongs to orthorhombic, Ibca space group.The crystal parameters of the ammonium picrate was given in the paper .a=7.131(1),b=13.487(1),c=19.810(2),V=1905.2(4)3,Z=8,Dc=1.716mg/cm3,μ=0.159mm-1,F(000)=1008。  相似文献   
2.
3,5-二溴 - 4-羟基苯甲醛晶体经X射线结构分析表明 ,晶体属单斜晶系 ,空间群为P2 (l) /m。晶体学参数 :a=4.30 0 3(7) ,b =1 4.1 2 2 (l) ,c=6.6958(8) A ,β =1 0 0 .0 6(1 )°,V =40 0 .38(9)A。3,Z =2 ,Mr=2 79.92 ,Dc=2 .32 2 g/cm3,μ =1 0 .0 65mm- 1 ,F(0 0 0 ) =2 64。偏离因子R =0 .0 381 ,wR =0 .0 883,S =0 .91 4,(△ρ) max=0 .0 4 78eA。 - 3。分子具有镜面对称。分子中 ,醛基为取向无序。  相似文献   
3.
报道了高氯酸三碳酰肼合钴()的制备、分子结构及其爆炸性能。该配合物的分子式为:〔Co(CHZ)3〕(ClO4)2。其晶体属于单斜晶系,空间群为P21/n,晶胞参数为:a=10.0490(10)×10-10m,b=8.5350(1)×10-10m,c=21.430(4)×10-10m,β=101.170(1)°。最终偏离因子R1=0.0657,wR2=0.1380。在该配合物中,钴离子的配位数为6,与之配合的碳酰肼分子为三个,每个碳酰肼分子都作为二齿配体,中心原子与它的六个配位原子形成畸变八面体结构。该配合物具有良好起爆能力,可作为起爆药用于雷管中。  相似文献   
4.
Intherecentyears ,thestudiesonthede signandsynthesisofthestablelanthanidecomplexeswithtripodalligandshaveattractedmuchattentionbecauseoftheiruniqueproper tiesandtheirpotentialapplicationsinthevari ousresearchfields[1 ,2 ] .It′sworthynotethatthelanthanidecom…  相似文献   
5.
The insertion reaction of phenyl isothiocyanate into the Ln-S bond was studied. Phenyl isothiocyanate reacted with [(CH3C5H4)2Sm(SPh)(THF)]2 to give the title complex, (CH3C5H4)2Sm[SC(SPh) NPh](THF),in good yield, which was characterized by elemental analyses, IR, ^1H NMR and X-ray structural determination. The crystal structure analysis of complex shows that samarium atom is coordinated by two CH3C5H4 groups, one O atom of THF, and N and S atoms from the SC(SPh)NPh ligand to form a distorted trigonal-bipyramidal geometry.  相似文献   
6.
The essential oil from the flowers of Chrysanthemum indicum in Henan was analyzed by capillary GC/MS method. Eighty-one components were separated and identified representing 93% of the total essential oil. The main chemical components were monoterpenes and sesquiterpenes, in which the content of camphor and borneol were most.  相似文献   
7.
Thesynthesisof 3d 4fheteronuclearcom plexesisofinterestforseveralreasons[1~ 9] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlan thanideandd transitionmetalions,andtheycanprobablybeusedasmagneticmateri als[2~ 8] .Thecoordinationands…  相似文献   
8.
[Mn(IMI)6](ClO4)2的合成、晶体结构及感度   总被引:1,自引:0,他引:1  
利用咪唑的水溶液和高氯酸锰水溶液反应制备高氯酸六咪唑合锰(II),培养出该配合物的单晶.用元素分析、红外光谱、DSC、TG-DTG和X射线单晶衍射等方法对该化合物进行了表征.结果表明,该晶体属于单斜晶系,空间群为P2(1)/n,晶胞参数a=11.721(2) nm, b=7.2191(13) nm, c=16.402(3) nm, β=90.064(3)°,V=1387.9(4) nm~3; Dc=1.585 g/cm~3; Z=2;F(000)=678, μ=0.160 mm, R_1=0.036 7, ωR2_=0.137 2.该化合物的分子式为[Mn(IMI)_6](ClO_4) _2,是由6个咪唑分子直接与二价锰离子配位、与高氯酸根离子结合形成的配合物.热分析结果表明,在10 K/min的升温速率下,该配合物的热分解过程由1个吸热峰和1个放热峰组成,剩余残渣量在9.9%左右.感度测试结果表明,该配合物为不敏感型的含能配合物.  相似文献   
9.
苦味酸碳酰肼的制备和分子结构的研究   总被引:1,自引:0,他引:1  
论述了苦味酸碳酰肼的制备和分子结构测定的结果。采用了 X射线衍射、元素分析、红外光谱等对其进行了表征。晶体属于单斜晶系 ,P2 1/ c空间群 ,晶体学参数为 :a=1.184 0 (2 ) nm,b=1.30 96 (2 ) nm,c=0 .82 6 1(1) nm,β=10 9.2 1(1)°,V=1.2 0 96 (3) nm3 ,z=4 ,Dc=1.783g/ cm3 ,μ(Mo Kα) =16 0 m-1,F(0 0 0 ) =6 5 6。晶体结构经全矩阵最小二乘法修正 ,最终偏离因子 R=0 .0 4 5 7,WR=0 .12 4 3。  相似文献   
10.
A new tripodal ligand, N, N, N‘, N‘, N“, N“-hexaisopropyl-2, 2‘, 2“-nitrilotris (2, 1-ethoxy)-triacetamide (L) and its new erbium picrate complex were prepared. The structure of the complex was determined by Xray crystal structure analysis. The result reveals that the Er^3 is encapsulated by the three arms of the tripodal ligand, and nine-coordinated by the bridged-head nitrogen atom, all ether oxygen atoms and carbonyl oxygen atoms of the ligand, and two oxygen atoms of the bidentate picrate. The coordination polyhedron is a distorted monocapped square antiprism.  相似文献   
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