首页|Synthesis and Crystal Structures of Two Dinuclear Iron(Ⅲ) Complexes with Tripodal Ligands
Synthesis and Crystal Structures of Two Dinuclear Iron(Ⅲ) Complexes with Tripodal Ligands
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By using the tripodal tetradentate ligands of tris(2-pyridylmethyl)amine (TPA) or tris(2-benzimidazolylmethyl)-amine (NTB), two dinunclear iron(Ⅲ) complexes [Fe2L2(μ2-O)( μ2-p-NH2-C6H4COO)]3+ (L=TPA, 1 and L=NTB,2) were obtained. Both of the two complexes crystallize in monoclinic system with space group P2(1)/c. The cell parameters of 1: a= 1.4529(4) nm, b= 1.6622(5) nm, c=2.0625(6) nm,β=100.327(5)°, V=4.900(3) nm3, Z=4,F(000)=2344, Mr= 1142.91, Dc= 1.549 g/cm3, R1 =0.0544, R2=0.0962. The cell parameters of 2: a= 1.3378(4) nm,b=2.1174(7) nm, c=2.4351(7) nm, β=97.315(6)°, V=6.842(4) nm3, Z=4, F(000)=3116, Mr= 1505.08, Dc= 1.444g/cm3, R1=0.0793, R2=0.1623. In both cases, the central iron(Ⅲ) metal ions are coordinated to the four nitrogen atoms of TPA (or NTB) and two oxygen atoms from two different bridges to form a distorted octahedral geometry.
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