配体

The retinoic acid acceptor RAR plays key roles in the teratogenesis, and the legands of RAR are strong teratogens.

视黄酸可引起包括人在内的多种动物胚胎畸形，其生物活性是由一系列视黄酸受体及其配体介导的。

Compared with tartrates of low molecular weight, although the workup was simplified, the catalytic activity and enantioselectivity aren't acceptable.

的对映选择性，但这种高催化活性仅存在于个别底物的环氧化中，并且配体的用量较大，一般都在50％mol。

For the research on chiral discrimination of soluble polymer-supported tartrates as stationary phases of CGC, one of the ligands, di (polyethylene glycol monomethyl ether) tartrate was used as stationary phase and a column was prepared.

为研究可溶性聚合物支载的酒石酸酯作为气相色谱固定相的手性识别能力，配体之一酒石酸二酯被用作固定相制备成色谱柱。

Though enantioslectivity in the epoxidation of some substrates with soluble polymer-supported tartrates is a little lower than that with solution-phase tartrates, it is higher than enantioslectivity with insoluble polystyrene resin-supported tartrates, linear poly s and corrosslinked poly s. It is obvious that soluble polymer-supported tartrates have good catalytic activity and enantioselectivity.

尽管可溶性聚合物支载的酒石酸酯在某些底物环氧化中的对映选择性比小分子酒石酸酯低一些，但明显优于文献报道的不溶性聚苯乙烯树脂支载的酒石酸酯、线形聚酒石酸酯和交联聚酒石酸酯配体，显示了良好的催化活性和对映选择性。

Thecrystal structure of 〓 was deter- mined, indicating that each Fe contains one exchangeable monodentate ligand solvated methanol molecule.

确定了〓〓的晶体结构，结果表明每个Fe周围都含有容易交换单齿配体甲醇分子。

Specific inhibition of Hh signalling using small molecule inhibitors, a neutralizing anti-Hh antibody or genetic deletion of smoothened in the mouse stroma results in growth inhibition in xenograft tumour models.

由癌细胞分泌的Hedgehog配体，在肿瘤表皮细胞中未能激活信号作用，而是在&基质&上发挥作用（&基质&由细胞外基质、成纤维细胞、内皮细胞和微血管组成，恶性细胞着床于其中）。

Zn 〓 is a new product developed by Sinical Chemicals, which can be use as an cheap equivalent of Zn 〓 in the asymmetric alkynylation reaction.

对配体进行进一步改造后，反应的产率得到了很大的提高，ee值也有所提高，达到99%以上。

Near-infrared fluorescence of Yb was further enhanced while the visible fluorescence from Yb-Calcein was quenched when second ligand, such as tributyl phosphate, 1,10-Phenanthroline and trioctyl phosphine oxide, was added.

第二配体TBP，Phen，TOPO的加入，可进一步提高Yb~(3+)-钙黄绿素体系的近红外发光效率，但同时也会猝灭Yb~(3+)-钙黄绿素体系的可见区荧光。

Traditionally, organo phosphines are used as the ligands to modify the catalytic properties of palladium complexes.

传统上，使用膦化合物为配体来调整催化活性及选择性。

In addition to cationic gold complexes bearing bulky biphenyl phosphines, a gold complex with tris(2,6-di-tert-butylphenyl)phosphite is exceptionally reactive as a catalyst for this reaction.

在与有大体积连苯基膦配体的金正配合离子加成反应中，三(2，6－二叔丁基苯)亚磷酸盐的金配合物异常活泼并充当该反应的催化剂

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。