Structural Diversity and Photoluminescent Properties of Two Mn(Ⅱ) Sulfoterephthalate Complexes from

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Solvothermal reaction of manganese(II) salt with monosodium 2-sulfoterephthalate(2-NaH_2stp) and two multi-pyridine N-containing auxiliary ligands results in the formation of two new complexes formulated with [Mn_2(Hstp)_2(bpp)_2(H_2O)_4](1) and [Mn_3(stp)_2(tpy)_3(H_2O)](H_2O)_5(2)(bpp = benz-2,3-pyrimidine-[2,3-f]-1,10-phenanthroline, tpy = 2,2?:6?,2??-terpyridine). X-ray diffraction structural analyses of two complexes reveal their structural diversity(0D and 1D) due to the difference of auxiliary ligands. 1 is a discrete structure, in which the Mn(Ⅱ) ion is hexa-coordinated with one stp, one bpp ligand and two water molecules. Complex 2 is a one-dimensional(1D) chain-like structure with three crystallographically independent Mn(Ⅱ) ions. The photoluminescent properties could be assigned to the π-π* transition of 2-sulfoterephthalate ligands. Solvothermal reaction of manganese (II) salt with monosodium 2-sulfoterephthalate (2-NaH 2 stp) and two multi-pyridine N- containing auxiliary ligands results in the formation of two new complexes formulated with [Mn 2 (Hstp) 2 (bpp) ) _4] (1) and [Mn_3 (stp) _2 (tpy) _3 (H_2O)] (H_2O) _5 (bpp = benz- 2,3-pyrimidine- [2,3-f] -phenanthroline, tpy = 2,2?: 6 ?, 2 ?? - terpyridine. X-ray diffraction structural analysis of two complexes reveal their structural diversity (OD and ID) due to the difference of auxiliary ligands. 1 is a discrete structure, in which the Mn (II) ion is hexa-coordinated with one stp, one bpp ligand and two water molecules. Complex 2 is a one-dimensional (1D) chain-like structure with three crystallographically independent Mn (II) ions. The photoluminescent properties could be assigned to the π-π * transition of 2-sulfoterephthalate ligands.
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