Nanoarchitectonics of heterometallic compound Al4Bi4 for optical limiting

Presented herein are the synthesis, structure, and optical properties of a novel aluminum-bismuth heterometallic coordination compound. [Al4Bi4(L)10(μ4-O)2(sal)4(Hsal)2] (L = benzyl alcohol, H2sal = salicylic acid) represents the highest nuclearity of AlBi based cluster compound. This compound is fully characterized. In addition, the optical limiting mechanism was investigated using the open-aperture and closed-aperture techniques. The results show it exhibits obvious reverse saturation absorption (RSA) response.