Patent ID: 11872212
Assignee: INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH (IISER) KOLKATA
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 3:
4. The process as claimed in claim 1, wherein, the non-centrosymmetric organic crystals are selected from the group consisting of—
a) 4,4′-methanediylbis-(2-ethyl-5-methyl-1H-imidazole) characterized by having space group, Cc with unit cell parameters a/b/c (Å):15.1991(14), 10.2064(11), 8.8579(9) and α:90, β:96.8420(10), γ:90;
b) diethyl 4,4′-(methylenebis(azanediyl))dibenzoate characterized by having space group, I41cd with unit cell parameters a/b/c (Å): 20.4892(2), 20.4892(2), 8.2145(2) and α, β, γ(θ°): 90, 90, 90;
c) dimethyl 4,4′-(methylenebis(azanediyl))dibenzoate characterized by having space group, I41cd with unit cell parameters a/b/c (Å): 18. 8336(4), 18.8336(4), 8.8097(3) and α, β, γ(θ°): 90, 90, 90.