查询词典 aromatic properties

The aroma gene between Luxianghui 1 and 2 aromatic CMS lines were mutual isogenic genes, but was not isogenic to that of four aromatic CMS lines.

泸香恢1号与2个不育系的香味基因相互等位，但与4份不育系确的香味基因不等位。

The details and results are summarized below:(1)An ABC style three component cascade reaction of aromatic aldehydes, aromatic amines and diethyl malonic ester or cyclohexanone has been developed.

论文从苯炔和亚胺出发，设计并系统研究了4种新的多组分串联反应，主要内容和结果如下：(1)发展了一种芳醛、芳胺和丙二酸二乙酯或环己酮的ABC型三组分串联反应。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 1 to 99 percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 99 to 1 percent of one or more alkoxysilane compounds.

一种用于丙烯聚合的催化剂组合物，包括：一种或多种齐格勒-纳塔主催化剂组合物，该齐格勒-纳塔主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体；一种或多种包含铝的辅催化剂；和两种或更多种不同的选择性控制剂的混合物，所述SCA混合物包括1到99％的一种或多种芳族单羧酸的一种或多种酯或其取代衍生物、和99到1％的一种或多种烷氧基硅烷化合物。

The test results showed that this synthetic kerosene fraction was mainly composed of paraffinic hydrocarbons and monocyclic naphthenic hydrocarbons, besides, only a minor amount of single-ring aromatic hydrocarbons was found, two-ring or three-ring aromatic hydrocarbons were non-detectable.

结果表明，从国产煤F-T合成燃料中截取的煤油馏分主要由链烷烃和一环环烷烃组成，油样中只含有极少的单环芳烃，没有双环和三环芳烃存在。

State Huckel's rule for deternining whether a molecule is aromatic or antiaromatic or nonaromatic and List aromatic,antiaromatic,and nonaromatic compounds.

答： 根据休克尔规则判断下列化合物是否具有芳香性。并列出下列化合物哪些是芳香性物质，非芳香性物质，反芳香性物质

Disclosed is a semi-aromatic polyamide containing oxazole ring and the related synthesis method, relating to a semi-aromatic nylon and the synthesis method.

一种含唑环半芳香聚酰胺及其合成方法，它涉及一种半芳香族尼龙及其合成方法。

KDML 105, a well known traditional Thai jasmine rice variety, is sweet aromatic rice. Although rice aroma combines more than 200 volatile compounds, a compound named 2-acetyl-1-pyrroline (2AP) is the main constituent. The aromatic 2AP has also been found in other cereals, pandan, bread flower, fungi and bacteria.

泰国农业大学网站消息，众所周知，KDML 105是一个特异的泰国芳香水稻品种，尽管稻米的香味是由200多种不稳定的化合物形成，但其中一种叫乙酰基吡咯啉（2-acetyl-1-pyrroline）的化合物是这种香味形成的主要成分，在其他谷类、班兰、真菌和细菌中也发现了这种化合物。

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

A new oscillographic potentiometric kinetic method for determining super trace aromatic amine was developed, based on the brominating reaction of aromatic amine and bromine.

将动力学分析法与示波电位法相结合，利用KBrO3与KBr的反歧化反应和溴代反应体系，提出了测定痕量芳胺的新方法。

I was flamed for posting incorrect messages on the forum.

因为在论坛上发布了不正确的消息，我受到了严厉批评。

It is, however, important to see precisely what the relation of Reform to punishment is because its advocates too often misstate it.

然而，重要的是，要弄清改造与惩罚究竟有何关系，因为其拥护者常对此做虚假陈述。