Law, Kwok-Chung et al. published their research in Organometallics in 2022 | CAS: 628-13-7

Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine derivatives are also useful as small-molecule 浼?helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Name: Pyridinehydrochloride

Cyclometalated Iron and Ruthenium Complexes Supported by a Tetradentate Ligand Scaffold with Mixed O, N, and C Donor Atoms: Synthesis, Structures, and Excited-State Properties was written by Law, Kwok-Chung;Tang, Zhou;Wu, Liangliang;Wan, Qingyun;To, Wai-Pong;Chang, Xiaoyong;Low, Kam-Hung;Liu, Yungen;Che, Chi-Ming. And the article was included in Organometallics in 2022.Name: Pyridinehydrochloride This article mentions the following:

Cyclometalated Fe(II/III) and Ru(II/III) complexes bearing a tetradentate dianionic [O-N-C-N] ligand (H2[O-N-C-N] = 2-(6-(3-(pyridin-2-yl)phenyl)pyridin-2-yl)phenol) were synthesized and structurally characterized. The strong-field dianionic [O-N-C-N] ligand enforces all of these complexes in low-spin state at 298 K as revealed by 1H NMR, magnetic susceptibility, and EPR measurements. A 77 K 2-MeTHF glassy solution of the bis(arylisocyanide) Ru(II) complex [RuII(O-N-C-N)(XylNC)2] displays a weak and broad emission band (浣?sub>em: 680 nm; 锜? 0.27娓璼) while the others are nonemissive. DFT/TDDFT calculations revealed that 1dd excited states of the d6 [M(II)(O-N-C-N)(PMe3)2] (M = Fe, Ru) are strongly destabilized. The [Fe(II)(O-N-C-N)(PMe3)2] exhibits panchromatic absorption up to 850 nm. A combined study of fs-TA, spectroelectrochem., and theor. calculation revealed that the possible 3MLCT excited state (锜? 14 ps) of [Fe(II)(O-N-C-N)(PMe3)2] decays via a lower-lying 3dd excited state. For the d5 [M(III)(O-N-C-N)(PMe3)2]+ (M = Fe, Ru), the presence of low-lying 2dd excited states and 2LMCT states with short lifetimes (锜? 11.7-12.6 ps) is suggested. In the experiment, the researchers used many compounds, for example, Pyridinehydrochloride (cas: 628-13-7Name: Pyridinehydrochloride).

Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine derivatives are also useful as small-molecule 浼?helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Name: Pyridinehydrochloride

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem