碳的同素异形体:修订间差异
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{{征集意见}}{{包含非超理内容}} | {{征集意见}}{{包含非超理内容}}'''碳的同素异形体''',是指仅由碳元素组成而结构形态却不相同的单质。同素异形体由于结构不同,物理性质与化学性质上也有差异。目前随着锑际超理学家的不懈努力,人们已经制备出了多种碳单质。其中很大一部分碳单质在许多领域都有着重要应用。 | ||
碳单质可大致分为三类:普通碳单质,自由基,全碳有机物。 | |||
碳 | |||
== 种类 == | == 种类 == | ||
{| class="fandom-table" | {| class="fandom-table" | ||
|+<small>注:含*的代表不能在标况下稳定存在,含“·”的代表这种物质在现实中存在</small> | |+<small>注:含“*”的代表不能在标况下稳定存在,含“·”的代表这种物质在现实中存在</small> | ||
!名称 | !名称 | ||
!化学式/表达式 | !化学式/表达式 | ||
!微观结构 | |||
!图片 | !图片 | ||
! | !特点 | ||
|- | |- | ||
|·石墨 | |·石墨 | ||
'''Graphite''' | '''Graphite''' | ||
|C | |C | ||
|多层六边形平面密铺 | |||
|[[File:石墨.jpg|无框]] | |[[File:石墨.jpg|无框]] | ||
|平滑,能导电 | |平滑,能导电 | ||
第22行: | 第22行: | ||
'''Diamond''' | '''Diamond''' | ||
|C | |C | ||
|每个碳原子与周围四个碳原子相连 | |||
|[[File:钻石.jpg|无框]] | |[[File:钻石.jpg|无框]] | ||
|透明,导热性强,硬度高 | |透明,导热性强,硬度高 | ||
第28行: | 第29行: | ||
'''Graphene''' | '''Graphene''' | ||
|C | |C | ||
|单层六边形密铺 | |||
|[[File:石墨烯.jpg|无框]] | |[[File:石墨烯.jpg|无框]] | ||
|碳原子以sp2杂化轨道组成 | |碳原子以sp2杂化轨道组成 | ||
第35行: | 第37行: | ||
'''Graphdiyne''' | '''Graphdiyne''' | ||
|C | |C | ||
|单层六边形密铺,有三键 | |||
|[[File:石墨炔.png|无框]] | |[[File:石墨炔.png|无框]] | ||
| | |sp杂化和sp<sup>2</sup>杂化的碳原子构成的晶体 | ||
|- | |- | ||
|·碳纳米管 | |·碳纳米管 | ||
'''Carbon Nanotube''' | '''Carbon Nanotube''' | ||
|C | |C | ||
|六边形密铺平面组成的长圆柱体 | |||
|[[File:碳纳米管.jpg|无框]] | |[[File:碳纳米管.jpg|无框]] | ||
|管状的碳分子, | |管状的碳分子, | ||
管上每个碳原子采取sp<sup>2</sup>杂化 | 管上每个碳原子采取sp<sup>2</sup>杂化 | ||
|- | |||
|·蓝丝黛尔石 | |||
'''Lonsdaleite''' | |||
|C | |||
|介于石墨和金刚石之间 | |||
|[[File:Lonsdaleite.jpg|无框]] | |||
|改变石墨构形形成的金刚石, | |||
却又保留了石墨的平行六边形晶格 | |||
|- | |||
|·无定形碳 | |||
'''Amorphous carbon''' | |||
|C | |||
|无定形结构 | |||
|[[File:煤炭.jpg|无框]] | |||
|包含多种 | |||
|- | |||
|·巴明斯特富勒烯(巴氏球) | |||
'''Buckminsterfullerene''' | |||
|C<sub>60</sub> | |||
|六十个碳原子组成足球形的结构 | |||
|[[File:富勒烯.jpg|无框]] | |||
|球状分子,在有机溶剂中溶解性强于一般碳单质 | |||
|- | |||
|·其他富勒烯 | |||
'''Fullerene''' | |||
|C<sub>70</sub>,C<sub>540</sub> | |||
等 | |||
|球形的结构 | |||
|[[File:C540.jpg|无框]] | |||
| | |||
|- | |||
|·碳纳米泡沫 | |||
'''Carbon Nanofoam''' | |||
|C | |||
|每个单位由两层交叉的小型石墨烯组成 | |||
|[[File:碳纳米泡沫.jpg|无框]] | |||
|在低温时具磁性 | |||
密度极低 | |||
|- | |||
|·蜡石 | |||
'''Chaoite''' | |||
|C | |||
|类似于石墨,层的面积较小 | |||
|[[File:蜡石.jpg|无框]] | |||
|[[地球]]上已知的最软的物质之一 | |||
|- | |||
|·聚合钻石纳米棒(超钻石) | |||
'''Aggregated diamond nanorods''' | |||
|C | |||
| | |||
|暂无 | |||
|未知 | |||
|- | |||
|·环十八-1,3,5,7,9,11,13,15,17-九炔 | |||
(环18碳,18-轮炔) | |||
|C<sub>18</sub> | |||
| | |||
|[[File:环18碳.jpg|无框]] | |||
|碲球条件下能够热力学稳定最小的环[n]碳 | |||
|- | |||
|*苯三炔和环己六烯(6-轮炔) | |||
'''cracatene''' | |||
|C<sub>6</sub> | |||
| | |||
|[[File:C6分子.jpg|无框]] | |||
|(碲球人已经尝试合成它,但未取得成功) | |||
|- | |||
|*其他环n (0.5n)炔 | |||
环n n烯 | |||
|C<sub>(3~100)</sub> | |||
| | |||
| | |||
|(目前被合成的最大数值为100) | |||
|- | |||
|[[乙㶬]]和·*双原子碳 | |||
'''Ethune''' | |||
|C<sub>2</sub> | |||
|两个碳原子由碳碳四键连接 | |||
|[[File:加压安瓿玻封的液态乙㶬.png|无框]] | |||
|罕见的气态碳单质 | |||
|- | |||
|2-轮炔 | |||
|C<sub>2</sub> | |||
|由乙炔掰弯而得 | |||
|[[File:安瓿里的2-轮炔.jpg|无框]] | |||
|不稳定,掰弯100秒左右后立即回弹 | |||
|- | |||
|*[[五边石墨烯]] | |||
'''Penta-graphene''' | |||
|C | |||
| | |||
|[[File:五边石墨烯.jpg|无框]] | |||
|半衰期250秒,与大多物质发生剧裂加成反应 | |||
|- | |||
|海尔克碳 | |||
'''Haeckelite''' | |||
|C | |||
| | |||
| | |||
|碲球人设想过该物质 | |||
|- | |||
|[[准晶体碳]] | |||
|C | |||
| | |||
| | |||
| | |||
|- | |||
|正八面体烷 | |||
|C<sub>6</sub> | |||
|正八面体结构 | |||
| | |||
|白色粉末 | |||
|- | |||
|·*n (n-1) 烯自由基 | |||
|C<sub>x</sub> | |||
| | |||
| | |||
|极其不稳定 | |||
|- | |||
|·[https://antimony.fandom.com/zh/wiki/乙㶬#.E8.81.9A.E5.90.88 聚乙㶬](直链乙炔碳) | |||
'''Polyethune''' | |||
'''(Linear Acetylenic Carbon)''' | |||
|(C<sub>2</sub>)<sub>x</sub> | |||
| | |||
|[[File:聚乙㶬.png|无框]] | |||
|硬度极高 | |||
|- | |||
|·*单原子碳(甲㶬,卡贝) | |||
|C<sup>4·</sup> | |||
| | |||
| | |||
|极其不稳定 | |||
|- | |||
|立方烯 | |||
|{{Chem|C8}} | |||
|正方体,4个碳碳双键与上下两面相垂直 | |||
| | |||
| | |||
|- | |||
|五碳化合物 | |||
|{{Chem|C5}} | |||
|类似两个倒置三棱锥形 | |||
|[[File:五碳化合物.png|无框]] | |||
|键角非常小,极其不稳定,极易发生内部加成或者开环反应。 | |||
|- | |||
|体心立方堆积去氢立方烷 | |||
|(C<sub>8</sub>)<sub>n</sub> | |||
|去氢立方烷之间以共价键相连 | |||
| | |||
|碳碳键键角分别为90°和125°15' | |||
|} | |} | ||
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[[Category:超理概念]] | [[Category:超理概念]] | ||
[[Category:同素异形体]] | [[Category:同素异形体]] |