科學60秒:足球烯與水分子的不解之緣
來源:滬江聽寫酷
2011-09-06 10:00
The carbon molecule known as a buckyball, a member of the fullerene family, can act as a cage for a variety of other chemicals. And now researchers have used one to trap a single molecule of water. The work appears in the journal Science.
Placing a molecule that's essential to life within a spherically ___1___one could let researchers learn more about each.
Water molecules___2___together, because they carry a slight charge on each end. As the positive pole of one H2O attracts the negative pole of another, the molecules ___3__together. You can't separate a single water molecule from its fellows with a tiny pair of tweezers, so isolating it in a carbon cage may reveal new secrets about the intrinsic nature of a lone H2O.
What about the cage itself? Researchers already know that buckyballs refuse to dissolve in water, sometimes even floating like ___4___ beach balls. But what happens when the water is within? Putting polar molecules inside buckyballs may influence the chemical behavior of their outsides, and create new molecules with unique ___5___. Not to mention making our understanding even…fuller.
【視聽版科學小組榮譽出品】
Placing a molecule that's essential to life within a spherically ___1___one could let researchers learn more about each.
Water molecules___2___together, because they carry a slight charge on each end. As the positive pole of one H2O attracts the negative pole of another, the molecules ___3__together. You can't separate a single water molecule from its fellows with a tiny pair of tweezers, so isolating it in a carbon cage may reveal new secrets about the intrinsic nature of a lone H2O.
What about the cage itself? Researchers already know that buckyballs refuse to dissolve in water, sometimes even floating like ___4___ beach balls. But what happens when the water is within? Putting polar molecules inside buckyballs may influence the chemical behavior of their outsides, and create new molecules with unique ___5___. Not to mention making our understanding even…fuller.
【視聽版科學小組榮譽出品】
symmetrical
stick
cling tightly
miniature
properties
一種稱作足球烯的碳分子,它是富勒家族中的一員,可以像籠子一樣困住別的化學分子?,F(xiàn)在,研究人員已經(jīng)能應用一個足球烯困住單個水分子。這個報道在《科學》雜志上已經(jīng)出現(xiàn)了。
將“生命之源”——水分子放在球形對稱體上可以讓研究人員更詳細地研究兩者。
因為水分子的兩邊有少量的電荷,他們會相互粘連。當水分子的正極吸引另一分子的負極時,兩個分子a緊密連接在一起。你不能用小鑷子將他們分成單個的分子。因此,用碳籠把他們分成獨立的分子將會顯示出單個水分子內(nèi)在性質(zhì)的新奧秘。
那對于籠子本身又會發(fā)生什么?研究人員得出足球烯不溶于水,有時甚至會像水皮球一樣浮在水面。但是當水在球里面會發(fā)生什么呢?將極性分子放在足球烯中會使得他們的化學性質(zhì)與在外面的有所不同,并且產(chǎn)生特殊性質(zhì)的新分子。更不要說對富勒家族的了解了。