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1)  ()~1H-NMR and()~(13)C-NMR
1H-NMR和13C-NMR
1.
The influence of PAAC template on the structure of resulting copolymers from the acrylamide(AM)/acrylic acide(AA)/polyallylammonium chloride(PAAC) template copolymerization aqueous system was studied by IR,()~1H-NMR and()~(13)C-NMR.
采用IR,1H-NMR和13C-NMR研究了聚烯丙基氯化铵(PAAC)模板对丙烯酰胺(AM)/丙烯酸(AA)共聚产物结构的影响,发现这种模板对共聚物P(AM/AA)序列结构和分子量有重要影响。
2)  13C NMR chemical shift
13C NMR
1.
Atomic electro-negativity interaction vector(AEIV) and Atomic hybridization state index(AHSI) were employed here for QSSR model establishment of 13C NMR chemical shift of carbon atoms for terpenoid compounds.
利用原子电性作用矢量(Atomic electro-negativity interaction vector,AEIV)和原子杂化状态指数(Atomic hybridization state index,AHSI)对萜类化合物中的C原子进行结构表征并与其核磁共振碳谱(13C NMR)建立了优良的定量构谱相关(QSSR)模型。
2.
Atomic electronegativity interaction vector(AEIV) and atomic hybridization state index(AHSI) were employed here for QSSR model establishment of 13C NMR chemical shifts of carbon atoms in androstenones by stepwise multiple regression(SMR) and statistics.
本文利用原子电性作用矢量(AEIV)和原子杂化状态指数(AHSI)对13个雄甾烯酮中247个碳原子进行结构参数化表征并与其核磁共振碳谱(13C NMR)建立定量构谱相关(QSSR)模型,运用逐步回归结合统计检测对模型变量进行筛选,最后采用留一法交互校验、残差分布、Cook距离对所建模型稳定性能进行深入分析和检验,建模的计算值、留一法交互校验预测值的复相关系数(R)分别为0。
3)  13 C-NMR
13C-NMR
1.
The samples used for 13 C-NMR analysis are seperately collected at the beginning and the end of heat preservation in alkali stage as well as at the end of whole reaction.
利用13C-NMR分析了在传统合成工艺(碱—酸—碱)条件下,脲醛树脂及其改性树脂在反应不同时刻的结构差异。
2.
Structure characteristics of the different macerals of 5 low-to-medium rank coals were studied by means of 13 C-NMR.
利用13C-NMR核磁共振技术对中低变质程度煤显微组分(镜质组和惰质组)的分子结构进行了研究,计算了5种煤9个显微组分的13C-NMR结构参数,获得了样品的结构特征及变化规律。
3.
The1-methyl-4,5-bis(4-chloroben-zoyl)cyclohexeneand polymerwere studied by 13 C-NMRand Dept135.
用13C-NMR谱与Dept135谱对单体和聚合物行了表征,证明了单体和聚合物的结构。
4)  ~(13)C-NMR
13C-NMR
1.
A Study on Chemical Structure and Reaction of Urea-formaldehyde Resin by ~(13)C-NMR Spectrometry;
脲醛树脂化学结构及反应的13C-NMR研究
2.
According to the standard electronegativity of hydrogen atom, The Inductive effect of alkyl in organic compounds was confirmed by the chemical shift of proton in different kinds of alkyl group's ~1H-NMR, and the data of some original compound's( ~(13)C-NMR), and the activity of alcohol and amine in gas-phase, and the stability of its negative io
 以氢原子的电负性为标准,对不同结构烷烃的1H-NMR谱中质子的化学位移值、部分有机化合物的13C-NMR谱测定数据、气相条件下醇和胺的酸性结果及其对应的负离子的稳定性等方面进行分析,证实烷基在有机化合物中存在-I效应。
3.
The structure of polysialic acid was investigated with infrared spectra and ~(13)C-NMR methods.
经13C-NMR分析和比较,表明所得到的聚唾液酸是一种-α2,8糖苷键连接的同聚物。
5)  C-NMR
13C-NMR
1.
C-NMR spectra of ring carbons and O-acetyl carbonyl carbons of cellulose acetate (CA) in pyridine-d5 were analyzed and degree of substitution of three different kinds of hydroxyl groups have been obtained.
分析了以吡啶为溶剂的醋酸纤维素的13C-NMR核磁共振谱,得出了三种不同位置羟基的取代度。
6)  ~1H-NMR
1H-NMR
1.
According to the standard electronegativity of hydrogen atom, The Inductive effect of alkyl in organic compounds was confirmed by the chemical shift of proton in different kinds of alkyl group's ~1H-NMR, and the data of some original compound's( ~(13)C-NMR), and the activity of alcohol and amine in gas-phase, and the stability of its negative io
 以氢原子的电负性为标准,对不同结构烷烃的1H-NMR谱中质子的化学位移值、部分有机化合物的13C-NMR谱测定数据、气相条件下醇和胺的酸性结果及其对应的负离子的稳定性等方面进行分析,证实烷基在有机化合物中存在-I效应。
2.
The characteristics of the products were evaluated by Soxhlet extraction and DSC,~1H-NMR analyses.
采用差示扫描量热法(DSC)和核磁共振氢谱法(1H-NMR)研究了不同聚碳酸酯(PC)/乙烯-丙烯酸共聚物(EAA)共混体系在加工过程中的大分子反应,考察了有机金属催化剂二丁基锡DBTO)含量和反应时间对体系的影响。
补充资料:NMR
分子式:
CAS号:

性质:简称NMR。射频辐射被在恒定磁场中的具有自旋的原子核吸收时所产生的共振吸收谱。它与红外光谱、紫外光谱、质谱统称为四大光谱。核磁共振谱是利用有磁性的原子核如1H、13C、19F等在磁场作用下产生能级问的跃迁的原理,得到共振吸收信息,以频谱的形式记录并显示其共振吸收信号,即为核磁共振谱。1H谱和13C谱是应用最广泛的核磁共振谱,此外还有19F、31P和15N等核磁共振谱。它根据化学位移鉴定基团,由耦合分裂峰、耦合常数确定基团连接关系。它不仅是有机分子结构测定的重要手段,而且也能提供某些化学反应动力学,聚合反应机理以及高聚物序列结构的有价值的资料。近年来迅速发展的二维核磁共振谱使得该技术的应用领域得到进一步拓宽。

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