含氮的

Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

欧阳平，陈国需，李华峰，无硫、磷的六元含氮杂环化合物用作润滑油多效添加剂的研究

In this paper, quantum chemistry methods were used to investigate themicrocosmic reaction mechanisms and dynamics of a series of activatenitrogen-, sulfur- and halogen-containing radicals and some smallmolecules in the gas phase theoretically, including isocyanic acid,isothiocyanic acid and ketenyl radical.

本研究论文是采用量子化学理论和计算方法，对异氰酸 HNCO、异硫氰酸 HNCS 及其自由基、乙烯酮自由基 HCCO 与若干气相含氮、硫、卤素的活性小分子自由基反应的微观反应动力学进行理论计算研究。

In this paper, quantum chemistry methods were used to investigate the microcosmic reaction mechanisms and dynamics of a series of activate nitrogen-, sulfur-and halogen-containing radicals and some small molecules in the gas phase theoretically, including isocyanic acid , isothiocyanic acid and ketenyl radical .

本研究论文是采用量子化学理论和计算方法，对异氰酸HNCO、异硫氰酸HNCS及其自由基、乙烯酮自由基HCCO与若干气相含氮、硫、卤素的活性小分子自由基反应的微观反应动力学进行理论计算研究。

By multivariant regression, we built the correlation model between composition data and experiment value of rotary oxygen bomb test.

除分析了不同基础油调和后氧化安定性的变化规律外，还研究了含氮模型化合物对实验结果的影响。

Twenty-eight prototrophic revertants of the tryptophan auxotrophs were obtained through spotaneous back mutation from colonies grown on synthetic medium plates or nodules of plants. Most of the revertants have resumed the nodulation abilities and enhanced nitrogen fixation activities as evidenced by darker green color, higher dry weight and more nitrogen contents in shoot than those of the wild type strain 8-1-4A did in pot experiments. However, noodulation abilities decreased to some extent and no significant differences were found in the mass of nodules compared with the parent strain.

通过自发回复突变，从培养平板和根瘤中分离到28个色氨酸原养回复突变型菌株，对其中25株进行植物盆栽试验证明其中24株菌的结瘤功能得到了恢复，而且固氮酶活性普遍比出发菌有所提高，其中41％达到极显著水平，18％达到显著水平，植株地上部分干重及含氮量也有不同程度的提高，唯有根瘤数比出发菌有所降低，其中23％降低达极显著水平，11％降低达显著水平。

Piperidine oxoammonium salts oxidize aromatic amines and N, S-containing heterocycles to the corresponding radical cations, and the isotope effects in electron transfer reactions between thianthrene and N-methylphenothiazine radical cations and their respective neutral parent molecules have been reported for the first time.

啶氧铵盐氧化芳95胺和含氮、硫芳杂环为相应的自由基正离子，首次报道了及甲基吩自由基正离子与其中性母体之间电子转移的同位素效应。

Piperidine oxoammonium salts oxidize aromatic amines and N, S-containing heterocycles to the corresponding radical cations, and the isotope effects in electron transfer reactions between thianthrene and N-methylphenothiazine radical cations and their respective neutral parent molecules have been reported for the first time.

哌啶氧铵盐氧化芳香胺和含氮、硫芳杂环为相应的自由基正离子，首次报道了噻蒽及甲基吩噻嗪自由基正离子与其中性母体之间电子转移的同位素效应。

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。

With good stability and high reactivity, pyridine-based tridentate N-ligands have been widely used in the fields of coordination chemistry, organic synthesis and homogeneous catalysis.

吡啶基含氮三齿配体具有良好的稳定性和反应活性，在配位化学，有机合成和均相催化中均得到了广泛的应用。

In the last few years, the tripodal ligands bearing nitrogen atoms have drown much attention because of their polydentate, flexility and ease to synthesize.

近年来，含氮三脚架配体因其多配位点、半刚性及易合成等特点，对其稀土配合物的发光研究引起了人们的广泛兴趣。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。