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Physical–chemical meaning of the chosen descriptors.
| Physical–chemical meaning | Number representation |
|---|---|
| HA-dependent HDCA-2/TMSA (Quantum-Chemical PC) | HD |
| Maximum electronic repulsion for a hydrogen atom | ME |
| HACA-2 (Quantum-Chemical PC) | HC |
| HASA-1 (Quantum-Chemical PC) | HS |
