The crystal structure of quasi-one-dimensional compound Ni2 (Pyrd=pyrrolidine) has been determined by X-ray diffraction technique. It crystallizes in the monoclinic system, space group P21/c, with lattice parameters a...The crystal structure of quasi-one-dimensional compound Ni2 (Pyrd=pyrrolidine) has been determined by X-ray diffraction technique. It crystallizes in the monoclinic system, space group P21/c, with lattice parameters a=0.631 6(1) nm, b=0.746 5(2) nm, c=1.576 5(4) nm, β=106.08(3)°, and Z=2. The nickel atom had a square-planar geometry. The most prominent feature in the crystal structure is that the bis(pyrrolidinedithiocarbamato) nickel(Ⅱ) forms a well-separated stacking column along the a-axis through supramolecular interaction, and they are uniformly spaced to give a helical one-dimensional chain structure. CCDC: 220648.展开更多
A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 wit...A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 with a=3.392 1（11） nm, b=1.010 3（2） nm, c=1.791 5（4） nm, V=6.140（3） nm3, Z=4, Dc=1.334 g/cm3, F（000）=2 564, R=0.049 6, wR2=0.075 4, （Δρ）max=0.263×103 e/nm3, （Δρ）min=-0.237×103 e/nm3. In the titled complex, each ligand L adopts a "Z" conformation and binds with two Mn（Ⅱ） ions and each Mn（Ⅱ） ion binds with six L ligands to give a one-dimensional twisted supramolecular complex.展开更多
文摘The crystal structure of quasi-one-dimensional compound Ni2 (Pyrd=pyrrolidine) has been determined by X-ray diffraction technique. It crystallizes in the monoclinic system, space group P21/c, with lattice parameters a=0.631 6(1) nm, b=0.746 5(2) nm, c=1.576 5(4) nm, β=106.08(3)°, and Z=2. The nickel atom had a square-planar geometry. The most prominent feature in the crystal structure is that the bis(pyrrolidinedithiocarbamato) nickel(Ⅱ) forms a well-separated stacking column along the a-axis through supramolecular interaction, and they are uniformly spaced to give a helical one-dimensional chain structure. CCDC: 220648.
文摘A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 with a=3.392 1（11） nm, b=1.010 3（2） nm, c=1.791 5（4） nm, V=6.140（3） nm3, Z=4, Dc=1.334 g/cm3, F（000）=2 564, R=0.049 6, wR2=0.075 4, （Δρ）max=0.263×103 e/nm3, （Δρ）min=-0.237×103 e/nm3. In the titled complex, each ligand L adopts a "Z" conformation and binds with two Mn（Ⅱ） ions and each Mn（Ⅱ） ion binds with six L ligands to give a one-dimensional twisted supramolecular complex.
