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- a quarternary nitrogen atom. 和四个碳原子相连的氮原子
- One atom of oxygen is linked to the nitrogen atom by a double bond. 一个氧原子以双键与氮原子相连。
- Isoxazole, an analog with the nitrogen atom in position 2. 异-{恶唑}-,氮在2位的类似物。
- The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of an amino group. 该染料的甲川链上的中位碳原子与氨基的氮原子相连。
- Interestingly, the void plays a crucial role: the N-V center is quite different from a single nitrogen atom without a neighboring vacancy. 很有趣的是,这个空位扮演了一个很关键的角色:N-V中心和其他没有空位陪伴的单一氮原子非常不一样。
- It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes. 坚牢度和光谱特性,发现磺酰胺基和在它的氮原子上的取代基会影响该类染料的性能。
- Instead, ESIPT takes place, forming a proton transfer tautomer, in which the central nitrogen atom acts as the secondary alkyl amine. 非光缓解途经可分为物理性质的由光能转为热能散失在系统中,或是化学性质的由光能转为化学能进行化学反应;
- The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye. 该染料甲川链上的碳原子与氨基的氮原子相连,而该氮原子又与染料的甲川链形成烯胺。
- Betaine is a Quarternary alkaloid,which is widely found in animals,plants and microbe.As a methyl donor,it can modulate metabolism in animal. 甜菜碱是一种季铵型生物碱,广泛存在于动物、植物和微生物体内,是一种高效甲基供体,能调节动物体内渗透压、促进脂肪代谢和蛋白质合成。
- The IR showed that polyaniline was doped by phthalocyanine copper acid due to the reaction of carboxyl of the acid and the nitrogen atom of the polyaniline chain. 红外光谱测试结果说明酞菁铜羧酸的羧基和聚苯胺的氨基发生了酸碱中和反应,即成功的对聚苯胺进行了掺杂。
- With the increase of the number of the hydroxyethyl on nitrogen atom,the surface excessive concentration of AEAC was increased.However, the area of AEAC molecu... AEAC的表面过剩浓度随N原子上羟乙基数的增加而增加,但表面分子面积减小。
- They doped the titanium dioxide lattice with nitrogen atoms. 他们用氮原子掺杂了二氧化钛晶格。
- This research synthesizes a quarternary ammonium salt of honey, with the purpose that the honey can both retain the hydrophile of the glucide and gain new certain properties of cationic surfactant. 对蜜糖进行了季铵化合成,希望在保留糖类亲水性的同时具备阳离子表面活性剂的某些性质。
- This research synthesizes a quarternary ammonium salt of honey,with the purpose that the honey can both retain the hydrophile of the glucide and gain new certain properties of cationic surfactant. 对蜜糖进行了季铵化合成,希望在保留糖类亲水性的同时具备阳离子表面活性剂的某些性质。
- It is shown that the ion La~(+3)is conn? eted with an oxygen atom in sulfadiazine group in a form of coordinate bond while a covalence bond is formed between the ion La~(+3) and a nitrogen atom located on pyrinidine cycle. 分析表明;稀土离子La~(3+)与磺酰胺基中氧原子形成了配位键;同时又与嘧啶环上的氮原子形成了共价键.
- The nitrogen atoms combine instantaneously, simultaneously and spontaneously. 氮原子瞬间同时自动化合。
- An atom bomb would destroy a city. 一颗原子弹能摧毁一座城市。
- The nitrogen atoms combine instantaneously,simultaneously and spontaneously. 氮原子瞬间同时自动化合.
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。