| hc ha hn ho hs hp | H on aliphatic C H on aromatic C H on N H on O H on S H on P |
| Atom type | Description | Atom type | Description |
| h1 h2 h3 h4 h5 | H on aliphatic C with 1 EW group; H on aliphatic C with 2 EW group; H on aliphatic C with 3 EW group; H on aromatic C with 4 EW group; H on aromatic C with 5 EW group; | cc(cd) ce(cf) cp(cq) cu cv cx cy | inner sp2 C in conj. ring systems inner sp2 C in conj. chain systems bridge aromatic C sp2 C in three-memberred rings sp2 C in four-memberred rings sp3 C in three-memberred rings sp3 C in four-memberred rings |
sobereva 发表于 2021-6-23 16:46
用ha不会有什么实际问题
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