Table 2. NLO Effects of A3VO(O2)2CO3 (A = K, Rb, and Cs) and KSrCO3F.
| Compound | SHG (×KDP) | Structural criterion, C | Density of [CO3]2–, (n/V) (Å) | (n/V) × C (Å) |
| K3VO(O2)2CO3 | 20.0 | 1.00 | 0.0051 | 0.0051 |
| Rb3VO(O2)2CO3 | 21.0 | 1.00 | 0.0046 | 0.0046 |
| Cs3VO(O2)2CO3 | 23.0 | 1.00 | 0.0041 | 0.0041 |
| KSrCO3F | 3.3 | 1.00 | 0.0089 | 0.0089 |