The crystal of binuclear zinc complex Zn2(dhaash)2(py)4 was obtained in DMF and pyridine, where H2dhaash is 2,4-dihydroxy-5-acetylacetophenone-N-salicylhydrazone. It has been characterized by IR, UV, element analysis ...The crystal of binuclear zinc complex Zn2(dhaash)2(py)4 was obtained in DMF and pyridine, where H2dhaash is 2,4-dihydroxy-5-acetylacetophenone-N-salicylhydrazone. It has been characterized by IR, UV, element analysis and X-ray single crystal diffraction. The crystallographic data were as follows: monoclinic system, space group P21 / c, a=1.108 98(11) nm, b=1.640 84(16) nm, c=1.445 14(14) nm, β=108.617(2)°, Z=2, V=2.492 1(4) nm3, Dc=1.466 g·cm-3, Mr=1 099.74, μ=1.031 mm-1, F(000)=1 136 and the final R=0.044 8 and wR=0.105 8 for 4 143 observed reflections with I≥2σ(I), respectively. The X-ray crystal structure analysis revealed that, in the centrosymmetric binuclear complex molecule, two zinc髤 centers are linked by two oxygen atoms (O(3) and O(3A)), respectively. Zn(1)...Zn(1A) distance is 0.314 81(6) nm, O(3)...O(3A) distance is 0.270 4(2) nm. Every zinc髤 ion has an elongated octahedral coordination. For example, the two pyridine nitrogen atoms, one oxygen atom and one nitrogen atom from salicylhydrazone, one oxygen atom from 2,4-dihydroxy-5-acetylacetophenone in one dhaash2- ligand and one oxygen atom from 2,4-dihydroxy-5-acetylacetophenone in another dhaash2- ligand coordinated to zinc髤 ion, respectively. Two zinc髤 ions and all the 72 non-hydrogen atoms in the two dhaash2- ligands are in the same plane. CCDC: 261929.展开更多
The reaction of N-n-Bu4MnO4 with Mn(Oac) 2 · 4H2O and butenoic acid in nonaqueous solvents leads to the formation of the complex [Mn3O(O2CCH = CHCH3) 6(py) 3] ClO4 · py (1). The crystal structure was determi...The reaction of N-n-Bu4MnO4 with Mn(Oac) 2 · 4H2O and butenoic acid in nonaqueous solvents leads to the formation of the complex [Mn3O(O2CCH = CHCH3) 6(py) 3] ClO4 · py (1). The crystal structure was determined.The complex crystallizes in hexagonal, space group P63/m, unit cell parameters, a = 1. 2456(1)nm, b = 1. 2456(1) nm, c = 1. 8741(1) nm, V=2. 5181(3) nm3, Z =2, and final R1 =0. 0565, wR2 =0. 1465. Variable tem-perature solid tate magnetic susceptibility study shows that the complex [Mn3O(O2CCH = CHCH3)6(py)3] ClO4 (2) has an antiferromagnetic exchange interaction.展开更多
文摘The crystal of binuclear zinc complex Zn2(dhaash)2(py)4 was obtained in DMF and pyridine, where H2dhaash is 2,4-dihydroxy-5-acetylacetophenone-N-salicylhydrazone. It has been characterized by IR, UV, element analysis and X-ray single crystal diffraction. The crystallographic data were as follows: monoclinic system, space group P21 / c, a=1.108 98(11) nm, b=1.640 84(16) nm, c=1.445 14(14) nm, β=108.617(2)°, Z=2, V=2.492 1(4) nm3, Dc=1.466 g·cm-3, Mr=1 099.74, μ=1.031 mm-1, F(000)=1 136 and the final R=0.044 8 and wR=0.105 8 for 4 143 observed reflections with I≥2σ(I), respectively. The X-ray crystal structure analysis revealed that, in the centrosymmetric binuclear complex molecule, two zinc髤 centers are linked by two oxygen atoms (O(3) and O(3A)), respectively. Zn(1)...Zn(1A) distance is 0.314 81(6) nm, O(3)...O(3A) distance is 0.270 4(2) nm. Every zinc髤 ion has an elongated octahedral coordination. For example, the two pyridine nitrogen atoms, one oxygen atom and one nitrogen atom from salicylhydrazone, one oxygen atom from 2,4-dihydroxy-5-acetylacetophenone in one dhaash2- ligand and one oxygen atom from 2,4-dihydroxy-5-acetylacetophenone in another dhaash2- ligand coordinated to zinc髤 ion, respectively. Two zinc髤 ions and all the 72 non-hydrogen atoms in the two dhaash2- ligands are in the same plane. CCDC: 261929.
文摘The reaction of N-n-Bu4MnO4 with Mn(Oac) 2 · 4H2O and butenoic acid in nonaqueous solvents leads to the formation of the complex [Mn3O(O2CCH = CHCH3) 6(py) 3] ClO4 · py (1). The crystal structure was determined.The complex crystallizes in hexagonal, space group P63/m, unit cell parameters, a = 1. 2456(1)nm, b = 1. 2456(1) nm, c = 1. 8741(1) nm, V=2. 5181(3) nm3, Z =2, and final R1 =0. 0565, wR2 =0. 1465. Variable tem-perature solid tate magnetic susceptibility study shows that the complex [Mn3O(O2CCH = CHCH3)6(py)3] ClO4 (2) has an antiferromagnetic exchange interaction.
