| 词条 | Diethynylbenzene dianion |
| 释义 |
Diethynylbenzene dianion describes two deprotonated ethynyl anions attached to a benzene molecule. Depending on the relative location of the two carbon atoms, there are three possible isomers:
These are the top three strongest known bases.[1][2] The base was created in mass spectroscopy experiments by researchers in Australia.[1] The isomers where the ethynyl groups are closer together are the stronger bases. They are created by creating the corresponding phenylenedipropiolate dianions then removing the four oxygen atoms and two carbon atoms at the ends (as two neutral carbon dioxide molecules).[1] References1. ^1 2 {{cite journal|url=http://pubs.rsc.org/en/content/articlehtml/2016/sc/c6sc01726f|title=Preparation of an ion with the highest calculated proton affinity: ortho -diethynylbenzene dianion|first1=Berwyck L. J.|last1=Poad|first2=Nicholas D.|last2=Reed|first3=Christopher S.|last3=Hansen|first4=Adam J.|last4=Trevitt|first5=Stephen J.|last5=Blanksby|first6=Emily G.|last6=Mackay|first7=Michael S.|last7=Sherburn|first8=Bun|last8=Chan|first9=Leo|last9=Radom|date=12 January 2018|journal=Chemical Science|volume=7|issue=9|pages=6245–6250|accessdate=12 January 2018|doi=10.1039/C6SC01726F|pmid=30034765|pmc=6024202}} {{chemistry-stub}}2. ^{{cite web|title=Basically record breaking|url=https://www.chemistryworld.com/news/basically-record-breaking/1010062.article|website=Chemistry World|first1= Will|last1=Bergius|date=19 July 2016}} 3 : Superbases|Anions|Anions |
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