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The length of NO bond diminished in N combined complexes and it lengthened in O combined complexes.

同时,对复合物的振动分析发现,在胞嘧啶中所有的与NO结合的N—H键的伸缩频率下降,而所有氨基的面内弯曲振动频率是增加的。

The results indicate that the type and number of the substituents affect the toxicity of these compounds directly. A nitro group substitution increases the toxicity of the compounds, and on the contrary, an amido group substitution decreases their toxicity. For multi-nitrobenzenes, the toxicity of the o - or p -substituted nitrobenzene is bigger than that of the m -substituted one.

苯环上取代基的类型、数目和取代位置直接影响到标题化合物的毒性大小,强吸电子基如硝基会降低 Q -NO2和 E LUMO大小,使化合物毒性增强,且邻对位硝基取代的毒性高于间位取代;相反,给电子基团氨基的存在则会使化合物的毒性降低。

PECH based PUs showed higher phase separation than that of PPG base PUs owing to that the -Cl groups in PECH reduced the flexibility of molecule chain and hindered the formation of hydrogen bonds between ether groups in soft segments and -NH groups in hard segments. As a result, PECH based PUs have lower free volume content, diffusion coefficient and equilibrium adsorption of CO〓, benzene and ethanol through them than through PPG based PUs.

聚环氧氯丙烷醚聚氨酯的氯基降低了链段柔性,妨碍了软段中醚基与硬段中氨基的氢键作用,导致其相分离程度较聚环氧丙烷醚聚氨酯大,并使CO〓、苯和乙醇蒸汽在聚环氧氯丙烷醚聚氨酯中的渗透系数和扩散系数较聚环氧丙烷醚聚氨酯小,而偏离费克扩散的程度大。

The substituent of methyl has different electrical effects in organic solvent with various polarities.

甲基在不同极性的溶剂中表现不同的电子效应;甲氧基处于氨基的邻位的电子效应和处于间位时不同。

During the low temperature plasma polymerization, different factors (reaction power, pulse duty factor, reaction time, bias voltage and pressure) were investigated to get the best film. The results of X-ray photoelectron spectroscopy and Fourier transformed infrared spectoscopy implied that polymer nano-film containing carboxyl or amido were deposited successfully by using allylamine or acrylic acid as a reagent, respectively.

低温等离子聚合过程中,研究了反应的功率、脉冲占空比、反应时间、偏压、反应室压强这五个因素对薄膜性质的影响,确定了最佳的工艺参数。X光电子能谱和傅立叶转换红外光谱分析结果表明,以丙烯胺和丙烯酸为反应物可以在样品表面分别得到含有羧基或氨基的有机薄膜。

A series of novel bile acid derivatives as potential hepato-biliary and intestinal scintigraphy imaging SPECT (single photon emission computed tomography) tracers were prepared from bile acids by es-terification, aminolysis of esters and alkylation of amino groups.

以胆酸、鹅去氧胆酸为起始原料,经羧基的酯化、酯的胺解以及氨基的烷基化,合成了一系列潜在的针对肝胆显像和肠显像的SPECT (Single photon emission computed tomography)分子探针前体。

IR spectra and UV spectra of the complexes are described. The results show that two phenolic oxygen and two imino nitrogen atoms in H2L coordinate to M ions.

通过对配合物的红外光谱和紫外光谱测定与归属,推测在三个过渡金属Schiff碱配合物中配体是通过酚羟基的氧原子和亚氨基的氮原子进行配位的。

Furthermore, single-point energy calculations were refined at the QCISD level of theory with the same basis set (6-311++G**). As a result, the singlet reaction of silylene with isothiocyanic acid contain S-atom abstraction channel, N—H inserted channel, and NH abstraction channel, respectively.

又用QCISD/6-311++G**//B3LYP/6-311++G**方法计算了各个驻点的单点能,计算结果表明单重态的硅烯与异硫氰酸的反应有抽提硫、插入、抽提亚氨基的路径。

Comparing with chitin and starch, the thermal stability of the sulphated polysaccharide Hal-A and heparin is lower. The results of TG- IR analysis demonstrate that Hal-A is decomposed into CO_2, H_2O, alcohols, oxo-compounds etc and remains mainly contain Na_2SO_4 and carbon.

与淀粉、肝素、甲壳素和半乳糖的热分析比较,含有硫酸酯的鲍鱼多糖和肝素热稳定性较低,含氨基的甲壳素最高,这反映出不同基团对多糖热稳定性的影响。

Based on literature procedures, a dithiol tridentate ligand containing amino groupand its iron carbonyl complex (4) are synthesised and characterised. An attempt isalso made to protonate this complex.

在文献方法的基础上也合成了含有氨基的二硫醇三齿配体及其铁羰基化合物[Fe_2(SCH_2)_2C(CH_2NH_2)_5](4)的合成与表征,尝试了合成该化合物的质子化产物。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。