Table 5 The associated FTIR band positions and their assignments.

From: Sol–gel synthesized calcium borate glass and glass–ceramics: effect of CrCl3 doping on structure, mechanics, and gamma-ray shielding efficiency

The band position

Assignments

References

400–600 cm−1

Cation vibrations

36

700 cm−1

Asymmetric vibration mode of BO3 units

37

850–1200 cm−1

Vibrational mode of BO4 units

38

1200–1600 cm−1

The symmetric vibrational mode of BO3 units

38

1640 cm−1

H2O and hydroxyl (OH) groups

39

3440 cm−1

H2O and hydroxyl (OH) groups

39

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