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The absorption spectra of the terpyridyl platinum acetylide complex containing monoazacrown moiety in the acetylide ligand was blue-shifted upon complexation with metal cations.

对位带有氮杂-15-冠-5冠醚的苯乙炔为辅助配体的三联吡啶Pt络合物TAC在金属离子的存在下吸收光谱的变化明显不同。

The energy of excited state depended on the nature of different cations. 3. 4-(4-tolyl)-6-phenyl-2, 2'-bipyridine platinum acetylide complex containing a monoazazcrown moiety in the acetylide ligand could signal Mg〓 specifically and displayed large changes both in color and in luminescence intensity upon complexation with Mg〓. The most striking result was that it could signal Mg〓 specifically even in the presence of alkali and alkaline earth metal ions in high concentrations.

对位带有氮杂-15-冠-5冠醚的苯乙炔为辅助配体的4-（4-甲基苯基）-6-苯基-2，2'-联吡啶Pt络合物AC，不仅在碱金属和碱土金属的存在下吸收光谱明显改变，更有意义的是，它只有在Mg〓离子存在时能够发光，因此可以通过发射光谱选择性的识别Mg〓，尤其可以在高浓度的其它金属离子存在下选择性的检出Mg〓离子。

We also accomplished the synthesis of highly hindered depsipeptide moiety of the anti-tumor drug Actinomycin D using CMBI.

我们还采用此缩合剂合成了抗癌药物 Actinomycin D 中空间位阻较大的酯肽链部分。

But in the + moiety, the three benzimidazole rings shared the whole space equally, the dihedral angel among them is about 120°, just like three fan blades of an airscrew, the molecular structure appear gear-like shape.

X-射线单晶衍射测试、红外、紫外等方法确定了三(2-苯并咪唑亚甲基)胺的Fe和Co配合物的结构，由晶体结构发现金属配位情况不同、配合物在结构上存在着差异，Fe为八面体构型，而Co为三角双锥构型；其次，两配合物中的苯并咪唑环间夹角不同，配合物中包含N2和N4的两个苯并咪唑环间夹角仅为9.41(0.11)，几乎构成一个平面，呈蝴蝶形；后者Co三个苯并咪唑环几乎平分了整个空间，它们之间的夹角约为120，呈三扇叶螺旋桨式构型，为齿轮形。

Three series of donor-acceptorπ-conjugated molecules 1, 2, and 3 have been designed and synthesized with a N, N-dimethylamino, Julolidine group (2,3,6,7-tetrahydro-1H, 5H-pyrido[3, 2, 1-ij]quinolinyl), or N, N-diphenylamino group as the donor moiety, a phenylvinyl or thienylvinyl unit as the bridge, and a bromide or aldehyde group as the acceptor moiety.

本文设计并合成了1、2、3三个系列的D-π-A型化合物(Donor-Acceptorπ-conjugated compounds)，在化合物分子中引入久洛尼啶基团(2，3，6，7-tetrahydro-1H，5H-pyrido-[3，2，1-ij]quinolinyl)，N，N-二甲基氨基，或N，N-二苯基氨基为供电子基团，以苯乙烯基或噻吩乙烯基为桥链，以溴原子或醛基为吸电子基团。

In our previous studies, we explored that both protocatechuic acid and the aqueous extract of its original plant, Hibiscus Sabdariffa, showed strong inhibitory effects on the negative charge increasing of protein moiety in oxLDL and on the lipid peroxidation of lipid moiety in oxLDL. At present, we further investigate the effects of PCA and HSE on LDL oxidation.

在先前的研究中，我们已经发现原儿茶酸和洛神花水萃取物对於氧化型LDL所表现的负电荷增加及脂肪酸氧化有抑制氧化的作用，在本实验中我们以PCA和HSE进一步探讨其对抗LDL氧化的作用强弱。

CTTC undergoes ring-opening process to incorporate a trithiocarbonate moiety. The trithiocarbonate moiety in turn, functions as a reversible addition fragmentation chain transfer agent.

即环状三硫酯受到自由基进攻以后，发生开环反应并转化为线形三硫酯进入到聚合物的链中；线形三硫酯基团可以进一步作为RAFT试剂控制其后的聚合反应。

We got a conclusion that only biflavonoids bearing flavan moiety existed in Daphne gemus, that biflavanones and chamaechromonoids existed in Stellera genus, and that biflavanones and biflavonoids bearing flavan moiety existed Wikstroemia species. The opinion that biflavanones only existed in Stellera genus was corrected and they were also found in Wikstroemia genus.

通过总结发现，在瑞香属的植物中仅存在含有黄烷单元的双黄酮类化合物；狼毒属植物中存在双二氢黄酮类，狼毒色原酮类以及少数含有黄烷单元的双黄酮，而且目前发现狼毒色原酮类仅存在于该属植物中；荛花属植物中存在含有黄烷单元的双黄酮类和双二氢黄酮类。

Two types of haptens, the earboxylated propyl amino derivative of the acid moiety (HCA1) that is the hydrolyzed product of cyhalothrin, and the carboxylated ethyl carbonyl derivative of the alcohol moiety (HCB2) were synthesized, and conjugated with the carrier proteins bovine serum albumin and ovalbumin respectively by the active ester method and the mixed anhydride method. The polyclonal antibodies were obtained after immuning to the New Zealand rabbits.

通过对氯氟氰菊酯分子结构中的酸部分接4-氨基丁酸(HCA1)和醇部分接丁二酸酐(HCB2)，合成两种不同的半抗原，并通过碳二亚胺法将HCA1和HCB2分别与牛血清蛋白偶联制备了人工抗原HCA1-BSA和HCB2-BSA，通过活泼酯法将HCA1、HCAS和HCB2分别与卵清蛋白偶联制备包被抗原，两种人工抗原通过免疫新西兰大白兔来制备相应的多克隆抗体。

Three different mechanisms and the solvent effect of the electron transfer reaction between indol moiety and phenol moiety of the model system corresponding to the dipeptide of tryptophan and tyrosine have been studied by energy calculations.

对三种机理的理论研究探明了不同去质子化机理对电子转移的控制作用，并阐明了溶剂效应引起多步反应机制和双去质子化反应机制的合理性。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。