Cyanide is a carbon atom triple bonded to a nitrogen atom.

氰离子（cyanide），是碳原子与氮原子以三键结合（C≡N¯）。

It has 14 nitrogen atoms and because of the way the molecule was structured, none of them are in a triple bond.

它有14个氮原子，由于其特殊的分子结构，没有一个原子处在三价键中。

These occur when an atom is either triple bonded to another atom or is double bonded to 2 atoms.

当一个原子与另一个原子形成三键或与 2 个原子形成双键时， 就会发生这种情况。

The point is that double or triple bonds can be usually opened up fairly easily.

关键是双键或三键通常可以很容易地打开。

If they've got a double bond, we call them alkenes, and those with triple bonds are alkynes.

如果它们有双键，我们称它们为烯烃，而那些有三键的是炔烃。

Their electrons form an extremely strong triple bond with each other, which, in nature can usually only be broken by a molecule being hit by lightning.

它们的电子形成了一个极强的三价键，在自然界中，通常只有在分子被闪电击中时才会被破坏。

Hydrocarbons that have one or more double bonds end in -ene, while the ones that have triple bonds use the suffix -yne.

具有一个或多个双键的碳氢化合物以-ene结尾，而具有三键的碳氢化合物使用后缀-yne。

The triple bonds in alkynes, meanwhile, are composed of 1 sigma bond and 2 pi bonds for a total of 3 bonds.

同时，炔烃中的三键由 1 个 sigma 键和 2 个 pi 键组成，总共 3 个键。

Certain reactions open up a double or triple bond to insert various atoms, leaving only a single bond between the carbons.

某些反应会打开一个双键或三键以插入各种原子，只在碳之间留下一个单键。

So a compound with 3 carbons and 1 double bond would be propene, 3 carbons and 1 triple bond: propyne.

因此，具有 3 个碳和 1 个双键的化合物将是丙烯，3 个碳和 1 个三键：丙炔。

If there’s nothing but hydrogen and carbon, your suffix just depends on whether you have any double bonds or triple bonds; you know these, propane, propene, propyne.

如果只有氢和碳，你的后缀就取决于你有双键还是三键； 你知道这些， 丙烷，丙烯，丙炔。

Pi bonds are significantly more unstable than sigma bonds, so double and triple bonds are pretty easy to break, opening the doors for some good chemistry.

Pi 键明显比 sigma 键不稳定，因此双键和三键很容易断裂， 为一些良好的化学反应打开了大门。

These occur when an atom is either triple bonded to another atom or is double bonded to 2 atoms. The sp orbital, the one that forms the sigma bonds here, is linear.

当一个原子与另一个原子形成三键或与 2 个原子形成双键时， 就会发生这种情况。在这里形成西格玛键的 sp 轨道是线性的。

The differences between fats and what makes them better or worse for you is whether or not they have double and triple bonds, and where and how those bonds occur.

脂肪之间的差异以及它们对您来说是好是坏的区别在于它们是否具有双键和三键，以及这些键在何处以及如何出现。

So three words representing three different groups of organic compounds: alkanes for all single bonds, alkenes if they contain double bonds, and alkynes if they contain one or more triple bonds.

所以三个词代表三组不同的有机化合物：所有单键的烷烃，含有双键的烯烃，含有一个或多个三键的炔烃。

The pi bonds prevent the triple bonds from rotating here as well, but triple bonded carbons can only bond to one other atom, so even if it could rotate, nothing would change.

π键也阻止三键在这里旋转，但是三键碳只能与另一个原子键合， 所以即使它可以旋转， 也不会发生任何变化。

Finally, cycloalkynes do exist, but they are crazy hard to form because the triple bond is linear, so it hates bending into rings, and that is why the simplest cycloalkyne has eight carbons.

最后，环炔烃确实存在， 但它们很难形成， 因为三键是线性的，所以它讨厌弯曲成环， 这就是为什么最简单的环炔烃有八个碳。

If you paid attention, you learned that hydrocarbons with double bonds are called alkenes and those with triple bonds are called alkynes and that the naming rules are the same as for alkanes.

如果你注意的话，你会发现带有双键的碳氢化合物称为烯烃， 带有三键的碳氢化合物称为炔烃， 并且命名规则与烷烃相同。