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- Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra,infrared spectra and etc. 用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。
- Synthesis and characterization of novel soluble polyamides containing nitrogen heterocyclic ring 新型含氮杂环可溶性聚芳酰胺的合成及表征
- Keywords coordination polymer;the ligands of nitrogen heterocyclic ring;crystal structure;spectroanalysis; 关键词配位聚合物;含氮杂环类配体;晶体结构;光谱分析;
- nitrogen heterocyclic ring 含氮杂环
- Keywords pyrazole;nitrogen heterocyclic rings;fungicidal activity;insecticidal activity; 吡唑;含氮杂环;杀菌活性;杀虫活性;
- The structure of the indolizine and nitrogen heterocyclic naphthoquinone derivative is shown as a formula (I). 中氮茚并氮杂萘醌衍生物的结构如式(I)所示。
- By Hull cell test, a kind of anion surfactant and nitrogen heterocyclic compound was chosen as a additive for pulse non-cyanide silver electroplating. 采用赫尔槽试验筛选出一种阴离子表面活性剂及含氮杂环化合物作为脉冲无氰镀银的添加剂,并初步确定了无氰镀银的工艺条件及脉冲条件。
- In this paper, two unsaturated alicyclic nitrogen heterocyclic crownethers were synthesized by phase transfer reaction . 采用相转移催化反应合成了两个不饱和脂环氮杂冠醚。
- The present invention discloses an indolizine and nitrogen heterocyclic naphthoquinone derivative, a preparation method and an anticancer application thereof. 本发明公开了中氮茚并氮杂萘醌衍生物及其制备方法与抗癌应用。
- Azole:a class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂:一种由五种杂环元素,两组粘合剂组成的有机化合物。
- A class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂一种由五种杂环元素，两组粘合剂组成的有机化合物。
- Q represents the nonmetallic atoms necessary to complete a heterocyclic nucleus containing 5 atoms in the heterocyclic ring. Q是形成5个原子杂环核所必须的非金属原子。
- The inorganic additives are soluble metal compounds,and the organic additives are nonionic surfactants,polyamine compounds,nitrogen heterocyclic compounds,sulfur compounds,amino acid compounds,et... 无氰镀银通常采用的无机添加剂主要是可溶性金属化合物,有机添加剂主要是非离子型表面活性剂、聚胺类化合物、含氮杂环化合物、含硫化合物和氨基酸化合物等。
- A chemical compound in the form of a heterocyclic ring,containing a metal ion attached by coordinate bonds to at least two nonmetal ions. 螯合物杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键。
- A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions. 螯合物杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键
- nitrogen heterocyclic containing aryl ligand 芳-氮杂环配体
- A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform. It is the parent compound of hemoglobin, chlorophyll, and many other complex, biologically active substances. 叽咯一种五倍杂环混合物，C4H5N，气味与三氯甲烷相似，是血红蛋白，叶绿素和其他多种复杂的生物性活跃的物质的亲体混合物
- Aim Synthesis of nitrogen heterocycle ferrocenesulfonyl amide was studied. 目的 研究氮杂环二茂铁磺酰胺类化合物的合成。
- A five-membered heterocyclic ring compound,C4H5N,having an odor similar to chloroform. It is the parent compound of hemoglobin,chlorophyll,and many other complex,biologically active substances. 叽咯一种五倍杂环混合物，C4H5N，气味与三氯甲烷相似，是血红蛋白，叶绿素和其他多种复杂的生物性活跃的物质的亲体混合物。
- Development on Nitrogen Heterocyclic Energetic Compounds 氮杂环含能化合物的研究进展
