HX-Linear and Nonlinear Optical Responsiveness of Rationally Designed Heteroleptic d⁸-Metallo-dithiolene Complexes.

ABSTRACT: This work presents the HX-responsiveness of the following heteroleptic donor-M-acceptor dithiolene complexes: Bu4N[MII(L1)(L2)] [M = Ni(1), Pd(2), Pt(3)], where L1 is the chiral acceptor ligand [(R)-α-MBAdto = chiral (R)-(+)α-methylbenzyldithio-oxamidate] and L2 is the donor ligand (tdas = 1,2,5-thiadiazole-3,4-dithiolato). Addition of hydrohalic acids induces a strong bathochromic shift and visible color change, which is fully reversed by ammonia (NH₃). Moreover, the sensing capability of 1 was further evaluated by deposition on a cellulose substrate. Exposure to HCl vapors induces an evident color change from purple to green, whereas successive exposure to NH₃ vapors fully restores the purple color. Remarkably, cellulose films of 1

SUBMITTER: Attar SS 

PROVIDER: S-EPMC12526242 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature