cyclobutadiene造句

例句与造句

1. Cyclobutadiene is particularly destabilized and this was originally attributed to antiaromaticity.
2. The electronic states of cyclobutadiene have been explored with a variety of computational methods.
3. They are liable to dimerization to cyclobutadiene compounds or react with oxygen to epoxides.
4. Cyclobutadiene is far from stable, it is highly reactive and has a very short lifetime.
5. Though the benzene ring is stabilized by aromaticity, the cyclobutadiene portion has a destabilizing effect.
6. It's difficult to find cyclobutadiene in a sentence. 用cyclobutadiene造句挺难的
7. The first three annulenes are cyclobutadiene, benzene, and cyclooctatetraene ( [ 8 ] annulene ).
8. Next, Grubbs attended Columbia University, where he worked with Ronald Breslow on the antiaromaticity of cyclobutadiene.
9. One cyclobutadiene derivative is also accessible through a [ 2 + 2 ] cycloaddition of a di-alkyne.
10. In the same year Pettit who synthesised cyclobutadiene a few years earlier independently came up with a competing mechanism.
11. He searched for ways of obtaining cyclobutadiene, while explaining the chemistry of this unstable substance and isolating its dimers.
12. However, it has long been questioned if cyclobutadiene is genuinely antiaromatic and recent discoveries have suggested that it may not be.
13. It has been used in organic chemistry as a precursor for cyclobutadiene, which is an elusive species in the free state.
14. The rectangular structure is consistent with the existence of two different 1, 2-dideutero-1, 3-cyclobutadiene stereoisomers.
15. Cyclobutadiene ( C 4 H 4 ) with four pi electrons is stable only at temperatures below 35 K and is rectangular rather than square.
16. "' Benzocyclobutadiene "'is the simplest polycyclic aromatic hydrocarbon, being composed of a benzene ring fused to a cyclobutadiene ring.
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