Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 307-24-4, Name is Undecafluorohexanoic acid, molecular formula is C6HF11O2. In an article, author is Wu, Yancong,once mentioned of 307-24-4, Category: benzoxazole.
Two Cu(I) complexes constructed by different N-heterocyclic benzoxazole ligands: Syntheses, structures and fluorescent properties
Reaction of 2,2-(1,4-butanediyl)bis-1,3-benzoxazole (BBO) or 2-(2′-pyridyl)benzoxazole (PBO) ligands with [Cu(CH3CN)(2)(PPh3)(2)](BE4) afforded a copper(I) coordination polymer{[Cu(BBO)(PPh3)](BE4)}(n) (1) and a mononuclear copper(I) complex [Cu(PBO)(PPh3)(2)](BF4)center dot 2CH(2)Cl(2) (2) (where PPh3= triphenyl-phosphine), which have been characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The structural analysis revealed that in complex 1, copper(I) ions are three-coordinated and the geometric structure around the central copper(I) atom can be described as planar trigonal configuration. Complex 1 exhibits an one-dimensional coordination polymer by two BBO bridging adjacent copper(I) ions, forming a single-stranded meso-helical chain structure. Mononuclear complex 2 is four-coordinated and slightly distorted triangular-pyramid geometry. Solid luminescence properties investigation show that complex 1 has two emission peaks, which attributed to the pi*-pi and pi*-n transitions. However complex 2 only has one emission peak, which may be attributed to MLCT [d(10)(Cu) -> pi*]. This indicates that different types of N-heterocyclic ligands have an important influence on the structure and luminescent properties of copper(I) complexes. (C) 2019 Elsevier B.V. All rights reserved.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem