Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Journal of the American Chemical Society called Modulations of a Metal-Ligand Interaction and Photophysical Behaviors by Hückel-Möbius Aromatic Switching, Author is Kim, Jinseok; Oh, Juwon; Park, Seongchul; Yoneda, Tomoki; Osuka, Atsuhiro; Lim, Manho; Kim, Dongho, which mentions a compound: 3375-31-3, SMILESS is CC([O-])=O.CC([O-])=O.[Pd+2], Molecular C4H6O4Pd, Synthetic Route of C4H6O4Pd.
In organometallic complexes containing π-conjugated macrocyclic chelate ligands, conformational change significantly affects metal-ligand electronic interactions, hence tuning properties of the complexes. In this regard, we investigated the metal-ligand interactions in hexaphyrin mono-Pd(II) complexes I and II (Pd[28]M and Pd[26]H, resp.) which exhibit a redox-induced switching of Huckel-Mobius aromaticity and subsequent mol. conformation, and their effect on the electronic structure and photophys. behaviors. In Mobius aromatic Pd[28]M, the weak metal-ligand interaction leads to the π electronic structure of the hexaphyrin ligand remaining almost intact, which undergoes efficient intersystem crossing (ISC) assisted by the heavy-atom effect of the Pd metal. In Huckel aromatic Pd[26]H, the significant metal-ligand interaction results in ligand-to-metal charge-transfer (LMCT) in the excited-state dynamics. These contrasting metal-ligand electronic interactions have been revealed by time-resolved electronic and vibrational spectroscopies and time-dependent DFT calculations This work indicates that the conspicuous modulation of metal-ligand interaction by Hückel-Möbius aromaticity switching is an appealing approach to manipulate mol. properties of metal complexes, further enabling the fine-tuning of metal-ligand interactions and the novel design of functional organometallic materials.
There is still a lot of research devoted to this compound(SMILES：CC([O-])=O.CC([O-])=O.[Pd+2])Synthetic Route of C4H6O4Pd, and with the development of science, more effects of this compound(3375-31-3) can be discovered.