Table 1. Nonlinear Optical Parameters for Cd-MOF and Urea.

NLO parameters	Cd-MOF	Urea
static dipole moment (μ) [D]	3.143	1.916
average linear polarizability (α) [Å3]	108.353	2.197
anisotropic polarizability (Δα) [Å3]	272.224	9.659
first hyperpolarizability (β) [cm5 esu–1]	1.614 × 10–26	4.232 × 10–28
optical softness (σO) [eV–1]	4.407	0.120