Table 3 Assignment of Ge-O related vibration bands
Type of bonding | Spectral position, cm−1 (vibration type) | Reference |
---|---|---|
Ge-O | 515, 555 and 587 (triplet of hexagonal GeO2) (stretching) | |
Ge-O-Ge | 580 (bending), 870 (stretching) | [37] |
Ge-O− | 1060-1080 (non-bridging) | [37] |
Ge-O | 696 stretching (in ZrGeO4) | [28] |
Ge-O-Ge | 575 bending (in ZrGeO4) | |
O-Ge-O | 453 bending (in ZrGeO4) | |
Ge-O | 410 (ν(M-O) in [MO6]) | [29] |
453 (δ(Ge-O) in [GeO4]) | ||
506 (ν(Ge-O) in [GeO4] glassy GeO2) | ||
502-580 shoulder (ν(Ge-O) in glassy GeO2) | ||
575 (ν(Ge-O) in [GeO6]) | ||
586 (δ(Ge-O) in [GeO4]) | ||
696 (ν(Ge-O) in [GeO4]3− in orthogermanates) | ||
doublet 773, 793 (ν(Ge-O) in metagermanates [GeO3]2−) | ||
shoulder 790–890 (ν(Ge-O) in polygermanates) | ||
910 (ν(Ge-O) in [GeO4]) | ||
1060 (ν(Ge-O) in orthogermanates [GeO4]2−) | ||
1080 (ν(Ge-O) in orthogermanates [GeO4]3−) |