I just showed you that you can have a single wave, a double, a triple and so on.
我想说的是你能得到单个波,双波,三条波等等。
or you can get a triple-triple, which is three meat patties and three slices of cheese.
或者你可以要个“三三”汉堡,里面有三块肉饼和三片奶酪。
So this unique temperature and unique pressure defines a triple point everywhere, and that's a great reference point.
这样,无论在何处,三相点都具有相同的温度和压强,十分适合来作参考点。
Let's re-draw this, so it looks a little bit neater, where we have a triple bond in the middle instead, and again, we need our negative 1 charge there.
让我们重写这个,这样看起来更整洁一点,我们有一个三键在中间,同样地,我们这里需要一个负电荷。
Both melody and bass could have had a triplet but he chose to have the duple in the bass--the triple up above.
旋律和低音部都可以运用三连音,但是他选择低音两拍,高音三拍
We see three bonding pairs so this is a triple bond, indeed a multiple bond.
我们看到3对成键电子所以这是一个三重键,它确实是多重键。
They're not showing them keeling over from a triple bypass surgery, let's say.
当然广告里没放他们,免于三重心脏搭桥手术画面
So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.
让我们来看一看乙炔的例子,我们有两个碳原子,成三键,每个碳和一个碳一个氢相连。
So, for example, down here I wrote that it was n 2 and that it was h 2, but when I re-wrote the molecules up here, you saw that it's an h h single bond where it's a nitrogen-nitrogen triple bond.
比如,在这下面我写的是氮分子2,而这个是氢分子,但我在上面把这些分子的形式改写了,大家可以看到,这是一个氢与氢之间的单键,含一个氮与氮之间的三键。
And then we have a triple bond there because we have 3 pairs of electrons.
然后那里还有一个三键,因为我们有三对电子。
A lot of what we were doing today is very straightforward, the idea of duple versus triple meter, but most modulations we don't usually hear.
我们今天听的很多音乐都没有起伏,包括二拍子,三拍子节奏,但是我们很少听到转调
And if you hear a triple, your step is this: down-up-up, down-up-up, down-up-up, down-up-up.
听到三拍子时,这样做,强,弱,弱
Occasionally, you get things written in triple meter and in a minor key--minor key.
偶尔,有一些是由三拍子,和小调组成
That is a good solid triple bond.
这是很好的固态三线态。
This is very easy molecule because we know exactly where to put them without even having to think, we only have one option, and we'll make a triple bond between the carbon and the nitrogen.
这个分子非常简单,因为我们知道应该把它们放在哪里,甚至不用去想,我们只有一个选择,我们将在碳与氮之间形成一个三键。
So, in general what we see, and this is always true if we're comparing the same atom, and in general, if we're comparing different types of molecules, but we know that a single bond is always weaker than a double bond, which is weaker than a triple bond.
通常我们会看到,这对比较相同原子来说总是正确的,通常,如果我们要比较不同种类的分子,但我们知道单键,总是要比双键弱,双键总是要比三键弱。
So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.
这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话,这样我们就有氢与碳之间的单键和碳与氮之间三键,然后还有一对孤对电子在氮这里。
Okay? So those are the basic note values normally with a duple division but we can superimpose triple by using a dot and the absence of sound.
清楚了吗,这些就是基本的音符值,一般是双倍形式分配,但我们可以把它添加为三倍形式的,通过加上附点当然还有休止符
So now let's think about a triple bond.
现在我们来看看三键。
Let's do a triple meter one. Here we go.
再来一个三拍子的,开始
Of course, it's in minor and the voices will come in, but the bass is going, sort of plodding along in a basic duple but with a triple subdivision underneath of that.
当然,它是小调的,人声将会进入,但低音是这样,按基本的二拍子缓慢地行进,但在那下面还用了一个三连音的节奏细分
That's why we hear a triple pattern here.
这就是为什么我们会听到三拍
N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.
任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点,因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况,包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。
sigma That is one pi orbital. There is one sigma, one pi and there is a second pi, and that is how we are getting the triple bond.
那是一个pi轨道,有一个,一个pi,还有第二个pi轨道,这就是我们如何得到三线态的。
And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.
而我们以后还会看到三键,举例来说,应该更强,相较于相应的双键,或者相应的单键来说。
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