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single bonds

single bonds

single bonds

single bonds

3

Conjugated " means that the carbon atoms in the chains are joined by alternating double and single bonds . "

的意思是指长链里的碳原子是由双键及单键交替连结的。

4

The bonding electrons are electrons , which is at variance with the notion that single bonds are always bonds

成键电子是 π 电子，这与单键总是 σ 键的看法不一致。

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