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List of the effective ionic radii of the cations interacting with GQs Cotton and Wilkinson (1980).
| Ion | Coordination number | pm |
|---|---|---|
| MONOVALENT CATIONS | ||
| Li+ | 6 | 60 |
| Na+ | 6 | 95 |
| (NH4)+ | 6 | 148 |
| K+ | 6 | 133 |
| Tl+ | 6 | 140 |
| Rb+ | 6 | 148 |
| Cs+ | 6 | 169 |
| DIVALENT CATIONS | ||
| Co2+ | 6 | 74 |
| Mn2+ | 6 | 80 |
| Ni2+ | 6 | 69 |
| Mg2+ | 6 | 65 |
| Zn2+ | 6 | 74 |
| Cd2+ | 6 | 97 |
| Ca2+ | 6 | 99 |
| Sr2+ | 6 | 113 |
| Pb2+ | 6 | 121 |
| Ba2+ | 6 | 135 |
