Table 2. Average Bond Lengths and Average Bond Angles of Individual Hydrogen Bonds in Ni₃Al-A-LDHs.

Ni3Al-A-LDHs	LO–H···X (Å)	θO–H···X (degree)
Ni3Al-Cl-LDHs	2.47	150.06
Ni3Al-Br-LDHs	2.57	143.73
Ni3Al-I-LDHs	2.67	148.28
Ni3Al-OH-LDHs	1.87	159.59
Ni3Al-HCOO-LDHs	1.88	160.47
Ni3Al-NO3-LDHs	2.06	154.88
Ni3Al-SO4-LDHs	1.951	153.58
Ni3Al-CO3-LDHs	1.95	163.68
Ni3Al-C6H5SO3-LDHs	1.95	160.33
Ni3Al- C12H25SO3-LDHs	1.8	148.77