Second-Harmonic Generation in Organic–Inorganic Hybrid Cadmium Thiocyanates Containing Terminal Amino Acids
Using chiral amino acids as terminal ligands, colorless crystals of Cd<sub>3</sub>(SCN)<sub>6</sub>(l-C<sub>5</sub>H<sub>9</sub>NO<sub>3</sub>)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>·0.5CH<sub>3</sub>OH (<b>1</b>) and Cd(SCN)<sub>2</sub>(l-C<sub>6</sub>H<sub>14</sub>N<sub>4</sub>O<sub>2</sub>)<sub>2</sub> (<b>2</b>) were obtained by a solvent evaporation method. Compound <b>1</b> has a layered structure with a moderate second harmonic generation (SHG) efficiency (0.2 × KH<sub>2</sub>PO<sub>4</sub>) and a large birefringence (0.301 at 546 nm). Compound <b>2</b> features a molecular structure with a strong SHG efficiency (2.67 × KH<sub>2</sub>PO<sub>4</sub>) and a wide band gap (4.84 eV). Theoretical calculations were performed to elucidate the origin of the large SHG response of compound <b>2</b>.
Authors
- Zhien Lin (ORCID: https://orcid.org/0000-0002-5897-9114)
- Guohong Zou (ORCID: https://orcid.org/0000-0003-4527-0058)
- Hongmei Zeng (ORCID: https://orcid.org/0000-0001-7315-245X)
- Gangji Yi
- Qian Zhong (ORCID: https://orcid.org/0000-0001-8354-5839)
- Yue Zhou (ORCID: https://orcid.org/0009-0003-4522-4892)
Institutions
- Sichuan University (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-03-06
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c00633
- Citations
- 14
- Primary Topic
- Nonlinear Optical Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 5.98
Funders
- Sichuan University