查询词典 elemental analysis

A new compound,3-_6-{4-(4-vinylene)pyridyl} stilbenyl}-N-ethylcarbazole was synthesized,and characterized by elemental analysis,IR,MS and ~(1)H NMR spectra.

报道一种新型的D-π-D-π-A结构的化合物：3-(4-溴苯乙烯基)-6-[(4-乙烯基吡啶)苯乙烯基]-N-乙基咔唑的合成。

The chemistry structure and morphology of the fibers were studied by FT-IR, TGA, elemental analysis and SEM. The process and related influencing factors of the preparation of spinnable zirconium sol were studied.

用FT-IR、TGA、元素分析和SEM等分析技术表征了纤维的化学结构和形貌观察，研究了可纺性ZrO2溶胶的制备条件和影响因素。

Using thienyl stannane and palladium-catalyzed, 1,4-di(5'-carbaldehyde-thiophen-2'-yl)-2,5-dioctyloxy-benzene was synthesized by four steps, the structure was determined by NMR, IR and elemental analysis.

由于目标产物(5)本身具有多芳环共轭体系，其荧光效应相当强烈，在氯仿溶液中紫外-可见吸收和荧光发射的最大波长分别为413nm和477nm，固态荧光发射波长为504nm

Poly（p-vinylbenzyl succinimide） resin,which can be abbreviated to succinimide resin,was prepared by the reaction of chloromethylated polystyrene with succinimide in the presence of base. The succinimide resin was characterized by diffuse reflectance infrared Fourier transform spectrometry and elemental analysis.

摘 要：在碱性条件下，氯甲基化聚苯乙烯与丁二酰亚胺反应合成了聚（对乙烯基苄基丁二酰亚胺）树脂，采用元素分析、红外光谱对合成树脂的组成进行了表征。

Two organosulfonate complexes, [M22]·H2O (M=Cd 1, M=Pb 2), were obtained from the reaction of 1,10-phenanthroline, sodium 4-aminonaphthalene-1-sulfonate tetrahydrate and Cd2·2H2O or Pb (NO3)2 in a mixed solvent of water and methanol at 25 ℃. The compounds were characterized by elemental analysis, IR, and X-ray diffraction single crystal structure analyses.

合成了2个新型有机磺酸配合物，[Cd22]·H2O(1)和[Pb22]·H2O(2)(phen=1，10-邻菲咯啉，ans=4-氨基-1-萘磺酸根)，通过元素分析、红外光谱等对配合物进了表征，用X-射线单晶衍射方法测定了配合物的单晶结构。

By the nucleophilic substitution reaction of 6-O-tosyl-l,2:3,4-di-O- isopropylidene-a-Z-galactopyranose (3) with some substituted 1, 2,4- triazole-3-thiols (4a ~ 4c) or 1, 2, 3,4-tetrazole-5-thiols (5a~5f), nine 6-S-(substituted triazolyl or tetrazolyl)-l,2 : 3,4-di-O- isopropylidene-a-D-galactopyranoses (6a ~ 6i) were prepared in high yields. Their structures and configurations were analyzed and established by elemental analysis, IR, NMR, MS spectra.

报道了6－O－对甲苯磺酰基－1，2：3，4－二－O－异亚丙基－α-D吡喃型半乳糖（3）与取代的3－巯基三唑或5－巯基四唑4a-4c或5a-5f的亲核取代反应，合成了9个6－S－－1，2：3，4－二－O－异亚丙基－α- D吡喃型半乳糖（6a-6i），通过元素分析，IR，NMR和MS确证了上述化合物的结构，并经分子模型计算进行了其构象分析。

Methods On the basis of bioisosterism principles and by the method of substructure link, we modified the parent structure of 1, 3, 4-thiodiazole and synthesized a new kind of thiadiazole Schiff base. The structure of the new thiadiazole Schiff base was confirmed by infrared spectrum, nuclear magnetic resonance hydrogen spectrum (1HNMR) and elemental analysis.

利用生物等排原理和亚结构连接法，对噻二唑母体进行修饰，设计并合成了1个新的噻二唑席夫碱，目标化合物的结构经红外光谱、核磁共振氢谱和元素分析加以确证。

The main points of thedissertations are summarized as follows:1、Synthesis of TAP-BTE zinc complex with photochromic property and its application in non-destructive readoutA photochromic 1,2-bisthienylethenes substituted tetraazaporphyrinato zinc complex, 2,3,7,8,12,13,17,18-octakis(2\',4\',5\'-trimethyl-3\'-thienyl)tetraazaporphyrizine zinc,was synthesized by "one-pot" reaction,and was characterized by spectroscopic methods as well as the elemental analysis.

本论文的研究目的在于如何将二噻吩乙烯基团连接到卟啉、酞菁等大环分子上面，这一方面有利于光致变色性能的提升，另一方面也使得基于大环分子π-π作用的分子自组装成为可能。

In order to obtain versatile ulitity of host molecules, three new chiral calix [4] crown ethers containing aza, thio atoms bearing two chiral sites provided by -cysteine ester were synthesized by the condensation of calix [4] arene diacid dichloride with oligoethylene glycol bridged bis-amino acid methyl ester. All new compounds were characterized by NMR, MS and elemental analysis.

以-半胱氨酸为手性源，利用多甘醇二氯醚在碱性条件下对半胱氨酸巯基进行烷基化反应，成功地合成了多甘醇醚链桥联的半胱氨酸衍生物，醚化反应后，在高度稀释条件下与对叔丁基杯[4]芳烃二乙酰氯进行双功能基缩合反应成功地合成了新型的手性杯[4]含氮、硫杂冠醚，并利用〓H NMR、MS等谱图手段对其结构进行了表征。

The structure and composition of the title complexes were characterized by means of elemental analysis, EDTA titrimetric method, UV spectra and IR spectra.

利用元素分析、EDTA配位滴定分析、红外光谱和紫外吸收光谱分析对目标物的组成与结构进行了表征，并研究了其发光性能和热稳定性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了