Question

请各位化学好的达人帮忙翻译一下

Free rotation about the carbon-carbon single bond. Conformations. Torsional strain This particular set of bond angles and bond lengths still does not limit us to a single arrangement of atoms for the ethane molecule, since the relationship between the hydrogens of one carbon and the hydrogens of the other carbon is not specified. We could have an arrangement like I in which the hydrogens exactly oppose each other, an arrangement like II in which the hydrogens are perfectly staggered, or an infinity of intermediate arrangements. Which of these is the actual structure of thane? The answer is: all of them. We have seen that the a bond joining the carbon atoms is cylindrically symmetrical about a line joining the two carbon nuclei, overlap and hence bond strength should be the same For all these possible arrangements. If the various arrangements do not differ in energy, then the molecule is not restricted to any one of them, but can change freely from one to another. Since the change from one to another involves rotation about the carbon-carbon bond, we describe this freedom to change by saying that there is free rotation about the carbon-carbon single bond.

Answer 1

释放关于碳-碳的独身者束缚的旋转。
构造。
扭力的紧张束缚角度和束缚长度的这特别组仍然不为乙烷分子限制我们一个原子的安排,
因为一碳的氢和另一个碳的氢没被指定之间的关系。
我们可以有像我一样的一个安排在哪一个氢完全地反对彼此，一个安排像
2
在哪一个氢完全地被蹒跚,
或中间安排的无限大。
大乡绅的真实结构是这些当中哪一个?
答案是:
他们全部。
我们已经见到一个参加碳原子的束缚圆筒形对称有关参加这二个碳核,
重叠的一条线的事，而且因此束缚力量应该对这些可能的安排是相同的。
如果各种不同的安排在能源中不不一致,那么分子没被限制到任何的他们其中之一,
但是能自由地从一改变到另外的。自从变化以后从一对另外一包括关于碳-碳的束缚的旋转,
我们描述这自由藉由说有关于碳-碳的独身者束缚的自由的旋转改变。