New research progress on 136-95-8 in 2021. 136-95-8, Name is Benzo[d]thiazol-2-amine, molecular formula is C7H6N2S, Product Details of 136-95-8, SMILES is NC1=NC2=CC=CC=C2S1 belongs to naphthyridine compound, is a common compound. In a patnet, author is Kraemer, Christoph, once mentioned the new application about 136-95-8.
The three new blue-fluorescent ligands 2,7-bis(tetramethylguanidino)-1,8-naphthyridine (1), 2,7-bis(N,N’-dimethylethylene-guanidino)-1,8-naphthyridine (2) and 2,7-bis(N,N’-diisopropylguanidino)-1,8-naphthyridine (3) are synthesized, and their optical properties (electronic absorption and emission spectroscopy) studied. Reactions of 1 or 2 with [Cu(CH3CN)(4)]BF4 yield the Cu-4 chain compounds [Cu-4(1)(2)](BF4)(4) (that crystallizes as [Cu-4(1)(2)(CH3CN)(2)](BF4)(4)center dot 2CH(2)Cl(2)) and [Cu-4(2)(2)](BF4)(4). The variations of the optical properties upon coordination are evaluated, and the electronic transitions identified by time-dependent DFT (TD-DFT) calculations. Then the redox properties of the new Cu4 chain complexes are studied. In the course of these experiments, the new Cu-6 complex [Cu-4(1)(2)(CuCl2)(2)](2+), in which two CuCl2- units coordinate to the Cu-4 chain in [Cu-4(1)(2)](4+), was fully characterized. In addition, the Cu-3 chain complexes [Cu-3(1)(3)](3+) and [Cu-3(1)(2)](3+) were isolated as products of redox-induced degradation processes. Finally, we show by quantum chemical calculations that in [M-4(1)(2)](4+) complexes (M = coinage metal), the HOMO changes from a ligand-centered to a metal-centered orbital for replacement of M = Cu by Au.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem