... Phthalates are organic compounds having two ester functional groups per molecule. These are also named as phthalate esters. This is because one phthalate molecule contains two ester groups in the ortho position of the benzene ring. Therefore, phthalates are diesters. Furthermore, these ester groups...
...和非线性分子的表格形式 5. 摘要 什么是线性分子(linear molecules)? 线性分子是具有线性几何的化合物。这意味着,这些线性分子的原子连接性是直线的。分子中的所有原子都排列成一条完美的线。 图01:线性几何 在线性几何中...
...this compound is octahedral. The bond lengths of all the S-F bonds in this molecule are equal. Sulfur hexafluoride has a central sulfur atom attached to six fluorine atoms. Moreover, this molecule is c***idered as a hypervalent molecule. That means; this molecule has a main group element which has m...
...键的强度更大。 Usually, hydrogen bonds form between polar covalent molecules. These molecules contain polar covalent bonds, which form as a result of the difference in the electronegativity values of the atoms that are in the covalent bond. If this difference is high, the highly electronegati...
化学进化和有机进化的关键区别在于,化学进化是由于分子结构的变化而发生的;随着时间的推移,从复杂的分子到简单的分子,而有机进化是由于生物种群的遗传组成对环境变化的响应而发生的。 从地球演化过程中所受变...
在有机化学中,Iso和Sec之间的关键区别在于,我们用Iso这个词来命名一种有机化合物,除了一个碳原子形成一个连续的链,而我们用Sec这个词来识别与二级碳原子结合的官能团。 在有机化学中有许多前缀,我们用它们来识别...
...步骤如下:; Identify chiral centers or double bonds present in the molecule. Determine the priorities of the substituents attached to the chiral center or the double bond. Use either R/S system or E/Z system to name the compound. 取代基的优先顺序 首先考虑直接键合在手性...
...nce of at least one plane of symmetry A point of inversion (a point on the molecule which can be used to rotate the left side of the plane of symmetry by 180o to get the right side of the molecule). Presence of double bonds or triple bonds. 什么是中观(meso)? 介观一词命名了一组有机...
...小分子与生物制品的表格形式 5. 摘要 什么是小分子(**all molecules)? 小分子体积小,长期以来,这些分子是药物开发的基础。经典药物开发主要使用小分子和活性物质。例如,乙酰水杨酸是阿司匹林中的活性剂,它是一种非常小...
...sphorylase: Catalyze the introduction of a phosphate group into an organic molecule. The reaction is known as a phosphorylysis and the overall reaction is written as, 磷酸供体在激酶与磷酸化酶反应中的作用 激酶:来自ATP分子的磷酸基 磷酸化酶:无机磷酸盐中的磷...