查询词典 o. n.

Two qina ligands chelate a cobalt ion by 0 and N atoms and two DMSO ligands coordinate a cobalt ion by two O atoms at an axis. The complex formed inerratic octahedron configuration, and π-π stacking weak interaction was observed between the molecules.

配合物为单斜晶系，P2(1)/C空间群，2个qina配体以氮原子和氧原子与Co离子螯合配位，2个DMSO以氧原子与Co离子轴向配位，形成规则的八面体构型配合物，分子之间存在π-π堆积弱相互作用。

Results showed that with decreasing ability of the leaving group from iodo, Br, Cl, OAc to N+(CH3)3I-, the SN2 O-alkylation or C-alkylation was inhibited, and the SRN 1 path, leading to C-alkylation, was facilitated.

结果表明，离去基团的离去性能降低，SN2烷基化或烷氧基化受抑制，而是有利于SRN 1途径，使烷基化容易发生。

In contrast to S- and O-heterocyclic compounds, increasing ionic strength reduced the sorption of ionizable N-heterocyclic compounds (pyridine, 2-methylpyridine, quinoline, 2-methylquinoline, and isoquinoline), due to increased electrostatic competition by cations.

对比硫和氧类杂环物质，提高离子强度会减少杂环化合物的吸收（吡啶、2甲基吡啶、喹啉、2甲基喹啉和异喹啉）这主要是由于阳离子的静电竞争。

In this thesis, five polydentate ligands including azido, oxalate, terephthalic acid, isophthalic acid and Pyridine-2,6-dicarboxylic acid were used to construct new transition metal complexes (M = Ru, Fe and Zn). Eight new complexes as listed below were synthesized and fully characterized.

本论文以草酸根、叠氮根、对苯二甲酸、间苯二甲酸和吡啶-2，6-二羧酸等含O、N的多齿共轭配体为研究对象，合成了以下八个结构新颖的化合物，并对它们的结构和谱学性质进行了详细的表征。

Lelia - unlike the earthquake in China, the people of New Orleans were warned about the potential danger and they chose to stay. the problems in N.O.

与中国的地震不同，新奥而良的被告之存在潜在的危险，但他们选择留在那里。

You know it is done when you smell the lemony rosemary in your kitchen. 1 N; h7 B* O$ t9 A1 P

如果你的厨房散发出柠檬和香料味，你就知道鱼烤好了。

Dozens of studies have demonstrated the extreme toxicity of ethlymercury a n d the fact that most autistic children retain meaningful quantities of mercury in their majo r o rgans after receiving vaccines containing Thimerosal.

许多研究证实了乙基汞的极端毒性，同时证实了这样一个事实：多数孤独症孩子，主要器官中保留的有意义数量的汞，是接种含硫柳汞的疫苗之后。

Melanoidin coloring substance came into existence more or less after long-term food storage or food thermal treatment.Such phenomenon was named as Maillard reaction because enzymes were not involved in the reaction.

食品在加热处理或长期贮存后，都会产生不同程度的类黑精色素，如面包、烤肉、熏鱼、咖啡、茶及酱油等调味品中，都有类黑精色素的产生，因为这一类反应没有酶的参与，故又称非酶褐变(N o-enzym atic Brow ning)反应。

Regarding asphaltenes, the oxidative degradation was carried out in this work, including species of n-C〓 asphaltenes, crude oils and oilsands. The oxidation reagents include NaIO〓/NaH〓PO4 and 30%H〓O〓/CH〓COOH.

实验结果表明在沥青质的红外分析中，吸收因子Z可以较好排除成熟度差别大的影响，能应用于母质干酪根类型的判别。

The experimental results indicate that the efficiency of degradation decreases in the order of the species of n-C〓 asphaltenes, crude oils and oilsands; and decreases in the order of the oxidation reagents by NaIO〓/NaH〓PO4 and 30%H〓O〓/CH〓COOH.

红外吸收因子Y能够反映出沥青质演化程度方面的信息，可以应用于沥青质成熟度演化状况方面的研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。