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n-isopropyl    
相关语句
  n-异丙基
    THE CORRELATION BETWEEN ~(31)P CHEMICAL SHIFTS OF VARIOUS O-ETHYL O-ARYL N-ISOPROPYL AMINOTHIONOPHOSPHATES AND THEIR HERBICIDAL ACTIVITIES
    O-乙基O-芳基N-异丙基硫代磷酰胺酯类化合物的除草活性与其~(31)P化学位移的关系
短句来源
    Toxicity-Structure Relationship of O-Ethyl O-Aryl N-Isopropyl Thionophosphoramidates
    O-乙基O-取代芳基N-异丙基硫代磷酰胺酯类化合物急性毒性与结构的相关性
短句来源
    Study on the Gas-Phase Pyrolytic Reaction Mechanism of N-Ethyl, N-Isopropyl and N-t-Butyl Substituted 2-Aminopyrimidine
    N-乙基,N-异丙基和N-叔丁基-2-氨基嘧啶热解反应的理论研究
短句来源
    Catalytic Synthesis of N-isopropyl Phthalimide by Fluorous Biphasic Catalysis
    氟双相催化合成N-异丙基邻苯二甲酰亚胺
短句来源
    In addition, theoretical studies on the mechanism of three reactions (1.Gas-phase Pyrolytic Reactions of N-Ethyl, N-Isopropyl and N-t-Butyl Substituted 2-Aminopyrimidine; 2.Gas-phase Pyrolytic Reactions of N-Ethyl, N-Isopropyl and N-t-Butyl Substituted 2-Aminopyrazine; 3.Gas-phase Elimination of 2-Bromopropionic acid) have been done, and some significant results have also been gotten.
    此外,还对三个有意义的气相热解反应(1.N-乙基,N-异丙基和N-叔丁基-2-氨基嘧啶的热解反应;2.N-乙基,N-异丙基和N-叔丁基-2-氨基吡嗪的热解反应;3.2-溴丙酸的气相热消除反应)的机理进行了理论研究,也给出了有意义的结论。
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  n-isopropyl
Iodination of N-isopropyl- and N-benzyl-2-(2-cyclohexenyl)anilines gave the corresponding 1-iodo-hexahydrocarbazoles which underwent quantitative isomerization into 3-iodo-2,4-propano-1,2,3,4-tetrahydro-quinolines.
      
Quantum-chemical predictions of the formation of H-bonds between the N-phenyl-N'-isopropyl-p-phenylenediamine and N,N'-diphenyl-
      
Molecular chain properties of poly (N-isopropyl acrylamide)
      
A series of poly(N-isopropyl acrylamide) (PNIPAM) samples with molecular weight ranging from 2.23 × 104 to 130 × 104 and molecular weight distributionMw/Mn ≤1.
      
The mechanism of protection from 5 (N-ethyl-N-isopropyl)amiloride differs from that of ischemic preconditioning in rabbit heart
      
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Amiprophos-M, ethyl 2-nitro-4-methylphenyl N-isopropyl phosphoramidothionate, crystallizes in the triclinic space group P1 with two molecules in the unit cell. The crystallography parameters are: a=8.636 (1), b=10.483 (2),c=10.694(2) A; a=110.92(1)°, β=111.27(1)°, γ=98.97(1)°;V=796.2(3)A~3; D_c=1.33g/cm~3; F(000)=336;(MoK_α)=3.2cm~(-1). The crystal structure has been solved by the direct method and refined by the block-diagonal least-squares procedures to final R values of R_1=0.055 and R_2=0.047. The...

Amiprophos-M, ethyl 2-nitro-4-methylphenyl N-isopropyl phosphoramidothionate, crystallizes in the triclinic space group P1 with two molecules in the unit cell. The crystallography parameters are: a=8.636 (1), b=10.483 (2),c=10.694(2) A; a=110.92(1)°, β=111.27(1)°, γ=98.97(1)°;V=796.2(3)A~3; D_c=1.33g/cm~3; F(000)=336;(MoK_α)=3.2cm~(-1). The crystal structure has been solved by the direct method and refined by the block-diagonal least-squares procedures to final R values of R_1=0.055 and R_2=0.047. The phosphorus atom of the Amiprophos molecule forms four tetrahedral covalent bends, of which the P-S bond exhibits rather high double bond character. It implies that the empty 3d-orbital of the phosphorus atom should be involved in the chemical bond formation.

胺草磷晶体,属三斜晶系,空间群为C_i~1-PI,晶胞中含两个分子,晶体学数据为:a=8.636(1),b=10.483(2),c=10.694(2)(?);α=110.92(1)°,β=111.27(1)°,γ=98.97(1)°;V=796.2(3)(?)~3,D_c=1.33g/cm~3,F(000)=336;μ(MoK_α)=3.2cm~(-1)。此结构用直接法解出,最后的R因子为:R_1=O.055,R_2=0.047。胺草磷分子中的磷原子形成四个四面体向的化学键,其中P—S键含有相当高的双键成分,这意味着磷原子的3d轨函参与成键。

Quantitative toxicity-structure relationship of O-ethyl O-aryl N-isopropyl thionophosphor-amidates was studied by the determination of their hydrophobia, electronic and hydrolytic parameters as well as their acute toxicilies towards rats. From our experimental results it seems possible that the action between organo-phosphorous toxin and receptors may include dipole interaction. According to the QSAR of our experiment, the compound with low acute toxicity may be obtained when the molecular dipole moment...

Quantitative toxicity-structure relationship of O-ethyl O-aryl N-isopropyl thionophosphor-amidates was studied by the determination of their hydrophobia, electronic and hydrolytic parameters as well as their acute toxicilies towards rats. From our experimental results it seems possible that the action between organo-phosphorous toxin and receptors may include dipole interaction. According to the QSAR of our experiment, the compound with low acute toxicity may be obtained when the molecular dipole moment is small and hydrophilicity is high.

通过测定O-乙基O-取代芳基N-异丙基硫代磷酰胺酯类化合物的急性毒性、疏水性、电性、水解性,对这类化合物的急性毒性与化学结构进行了定量构-效相关(QSAR)分析。表明该类药物的急性毒性与电偶极矩μ显著相关,提示药物分子与受体的作用可能含有偶极成分。根据实验所得的QSAR方程,证明该类药物分子当电偶极矩小(苯环对位有推电子基团)、亲水性高时,其急性毒性较低。

α ,β-Dibromophenylpropionyl chloride reacting with organic amine (lower molecular weight) can yield a pair 01 cis and trans geometric isomers of α-bromocinnamamide. But the relative amounts of cis and trans isomers are influenced by the ratio of the amine employed. On the other hand the substituents on the phenyl ring and the solvents used in the reaction have some influence too. By this method and preparative TLC, we isolated and obtained eight pairs of geometric isomers including m-chloro-α-bromo-N-sec-butyl-cinramamides,...

α ,β-Dibromophenylpropionyl chloride reacting with organic amine (lower molecular weight) can yield a pair 01 cis and trans geometric isomers of α-bromocinnamamide. But the relative amounts of cis and trans isomers are influenced by the ratio of the amine employed. On the other hand the substituents on the phenyl ring and the solvents used in the reaction have some influence too. By this method and preparative TLC, we isolated and obtained eight pairs of geometric isomers including m-chloro-α-bromo-N-sec-butyl-cinramamides, p-bromo-α-bromo-N-isopropyl-cin-namamides, etc.

α,β-二溴苯丙酰氯与小分子有机胺反应可形成一对α-溴代桂皮酰胺的顺、反几何异构体。但其顺、反异构体的含量受胺摩尔比的影响。另外,苯环上取代基及反应介质也有一定影响。利用这种方法合成和制备薄层层析,分离得到间氯-α-溴代桂皮酰另丁胺、对溴-α-溴代桂皮酰异丙胺等八对几何异构体。

 
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