sigma bond
英 [ˈsɪɡmə bɒnd]
美 [ˈsɪɡmə bɑːnd]
网络 σ键
双语例句
- So that's exactly what our definition of a pi bond is, so we have one sigma bond, and one pi bond.
这是我们对π键的定义，我们有一个sigma键，和一个π键。 - So if we go ahead and name this bond, what we're going to name it is sigma,-because that's the& basically the shape of the bond or that's how our bond is coming together.
所以如果我们继续并且命名这一键，就是我们要命名的这个键，因为这是-，基本上键的形状，或者这就是键是怎么到一起的。 - Any time two orbitals come straight on together in that internuclear axis, you're going to have a sigma bond.
任何时候两个轨道，在核间轴上直接到一起，你就能得到sigma键。 - So would you expect this to be a pi bond or a sigma bond her PROFESSOR: OK, so I'm hearing some mixed answers.
你们觉得这是一个π键还是sigma键？，我听到有不同的答案。 - But once you have a double bond here, we have our pi bond, as well as our sigma bond.
但一旦你有了双键，我们有π键，也有sigma键。 - Sigma as being cylindrically symmetric about the bond axis, and it's important to point out that it has no nodal plane across this bond axis.
键是，So，we，talk，about，a，sigma，bond，关于键轴圆柱对称的，需要着重指出的是，而且沿着键轴是没有节面的。 - But in sigma orbitals, you have no nodal planes along the bond axis, so if we had a nodal plane here, we'd see an area where the wave function was equal to zero.
但在sigma轨道里，沿着轴向是没有节点平面的，如果我们有个节点，我们就会看到某个地方波函数等于0。 - So in the first case of this first bond here that I've put in a square, what type of a bond is this, is the sigma or pi?
在这第一个键里，我用方框把它标出来了，这个键是什么类型的，sigma还是π？ - If we think about that, that's a sigma bond, right, they're coming together along the nuclear axis.
如果我们考虑它的话，它是sigma键，对吧，它们沿着核轴方向靠近。 - Sigma symmetry of this molecular orbital, specifically that it's cylindrically symmetric about the bond axis.
告诉我们关于，And，the，sigma，tells，us，something，about，the，分子轨道对称性的信息，特别是它关于键轴是圆柱对称的。 - If we have the molecule ethane, then what we're going to have first is our sigma bond that we described between the two carbons.
如果我们有乙烷分子，那我们首先有，碳碳之间的sigma键。 - So, as they're very quietly handing out your class notes, let's think about what this bond is here, this boxed bond, is it a pi bond or a sigma bond?
在他们发讲义的同时，我们来看看这个键，方框里的这个键，它是sigma键还是π键？ - A triple bond, again is going to have one sigma bond on the internuclear axis.
一个三键，同样的也有沿着核间轴sigma键。 - So in this first case here, what we're seeing is a sigma bond.
在第一个例子里，我们看到的是sigma键。 - So if we have a single bond here, would you consider that a sigma bond or a pi bond?
如果这里有个单键，你觉得这是sigma键还是π键？ - And a sigma bond forms any time you have two orbitals coming together and interacting on that internuclear axis.
当你把两个轨道合在一起，并在核间轴上有相互作用时，就形成了sigma键。 - But keep in mind sigma orbitals have no nodal planes along the bond axis.
但记住sigma轨道沿着，键轴方向是没有节点的。 - Is that a sigma or a pi bond?
这是sigma键还是π键？