301353-96-8, Name is P7C3, molecular formula is C21H18Br2N2O, belongs to benzoxazole compound, is a common compound. In a patnet, author is Qu, Yao, once mentioned the new application about 301353-96-8, Formula: C21H18Br2N2O.
Three cuprous coordination polymers based on bisbenzoxazole: Syntheses, structures, luminescence and electrochemical properties
Three cuprous coordination polymers, namely: {[Cu(BBO)(3)]center dot PF6}n (1), {[Cu(BBO)(2)(CH3CN)(2)]center dot BF4}(n) (2) and {[Cu(BBO)(2)(SPPh3)]center dot BF4}n (3), bearing a bisbenzoxazole ligand, 2,2′-(1,4-butanediyl)bis-1,3-benzoxazole (BBO), have been synthesized, and structurally characterized by elemental analyses, IR, UV-Vis and single-crystal X-ray diffraction. The structural analysis revealed that the structures of coordination polymers I and 3 are both three-coordinated and show distorted trigonal planar geometry, but 2 is four-coordinated and a slightly distorted tetrahedron environment. In coordination polymer 1, adjacent copper(I) ions were bridged by three independent BBO to form a two-dimensional planar layer framework in which PF6- anion is filled in the hole. Two BBO link Cu(I) ions into a one-dimensional zigzag chain in coordination polymer 2, while acetonitrile as an ancillary ligand distributed on both sides of the one-dimensional chain. Coordination polymer 3 exhibits a single-stranded helix chain structure by two BBO bridging adjacent copper(I) ions. Luminescence properties investigation show that 1 have two emission peaks, which attributed to pi-pi* and n-pi* transitions. However 2 and 3 only had one emission peak, which may be attributed to [MLCT(d(10)(Cu) -> pi*]. This may be due to the synergy of the auxiliary ligands in coordination polymers 2 and 3. The cyclic voltammogram of 1-3 represent quasi-reversible Cue(2+)/Cu+ pairs. (C) 2019 Elsevier Ltd. All rights reserved.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem