Z. B. Han

Spontaneously resolved 3D homochiral In(III) coordination polymer with extended In-OH-In helical chains†

The hydrothermal reaction of In(III) and pyridine-3,5-dicarboxylic acid in the presence of triethylamine leads to a generation of novel 3D homochiral coordination polymers with In-OH-In helical chains. Interestingly, the resulting crystals were not a racemic mixture but had an enantiomeric excess, which was confirmed by the measurement of optical rotation of bulk samples using solid state vibrational circular dichroism (VCD) spectra.

A 3D chiral Zn(II) coordination polymer with triple Zn–oba–Zn helical chains (oba = 4,4′-oxybis(benzoate))

The solvothermal reaction of Zn(II) and 4,4-oxybis(benzoic acid) in the presence of anhydrous ethanol leads to the generation of a novel 3D chiral coordination polymer with triple helical chains; the resulting crystals were not a racemic mixture but had an enantiomeric excess, which was confirmed by measuring the optical rotation of bulk samples using solid state vibrational circular dichroism (VCD).

Hydrothermal synthesis and structural characterization of a new 3D chiral coordination polymer [Cd2(C4H4O6)2] n

A new chiral coordination polymer [Cd2(C4H4O6)2]n (I) has been synthesized and characterized by elemental analysis, IR, and X-ray single-crystal diffraction. The X-ray diffraction analysis reveals that I crystallizes in the orthorhombic system, space group P212121. The adjacent Cd(1) and Cd(2) centers are linked by one tartrate ligand through tridentate coordination to form a dimer. The dimer is further connected to the other dimer via tartrate ligands to construct an infinite three-dimensional (3D) coordination polymer. The unit cell parameters for I: a = 7.4984(17), b = 7.9106(18), c = 19.560(4) Å, V = 1160.2(5) Å3, Z = 4.

Solvothermal synthesis and crystal structure of a 1d coordination polymer: [Ni(1,4-BDC)(N-MIM)2]n (1,4-BDC = 1,4-benzenedicarboxylic acid, N-MIM = N-methylimidazole)

A new metal-organic coordination polymer, namely [Ni(1,4-BDC)(N-MIM)2]n (I) (1,4-BDC = 1,4-benzenedicarboxylic acid and N-MIM = N-methylimidazole), has been synthesized under solvothermal conditions by using N-MIM as solvent and characterized by elemental analysis, IR, and X-ray single-crystal diffraction. The X-ray diffraction analysis reveals that I crystallizes in the monoclinic system, space group C2/c. The 1,4-BDC ligand adopts a bis(bidentate) chelating mode to connect two adjacent Ni(II) centers to form a one-dimensional (1D) zigzag chain. The adjacent chains are further linked through hydrogen bonds and π-π stacking interactions, forming a three-dimensional (3D) supramolecular framework. The unit cell parameters for I: a = 17.250(10), b = 7.214(4), c = 16.506(7)Å, β = 125.53(4)°, V = 1671.6(15)Å3, Z = 4.

Hydrothermal synthesis and structural characterization of a new coordination polymer [In(Pdc)(OH)(2,2′-Bipy)]n(H2Pdc = 3,5-pyridinedicarboxylic acid, 2,2′-bipyridine)

AbstractA novel coordination polymer, [In(Pdc)(OH)(Bipy)]n(I) (H2Pdc is 3,5-pyridinedicarboxylic acid, Bipy is 2,2′-bipyridine), has been hydrothermally synthesized and characterized by elemental analysis and single-crystal X-ray diffraction. The X-ray diffraction analysis reveals that I crystallizes in the triclinic crystal system, space group P

Synthesis, structure, and properties of a new 3D hydrogen-bonded porous coordination polymer

nbar 1n

Poly[[diaqua­tri-μ4-succinato-dineodymium(III)] monohydrate]

and features an interesting 1D linear chain structure, which contains dinuclear [In2(Pdc)2(Bipy)2] subunits. The cell unit parameter for I: a = 8.629(1), b = 9.802(2), c = 10.227(2) Å, α = 79.20 (1)°, β = 76.08(1)°, γ = 71.44 (1)°, and Z = 2.

Hydrothermal synthesis and crystal structure of a new 2D metal-organic framework: [Gd(Oba)(Ox)0.5(H2O)2]n (H2Oba = 4,4′-oxybis(benzoic acid); H2Ox = oxalic acid)

A new coordination polymer [Cu(H2Tci)2(Bipy)(H2O)] · 2H2O (I) (H3Tci = tris(2-carboxyethyl)isocyanurate, Bipy = 4,4′-bipyridine) has been synthesized and characterized by elemental analysis, IR, and X-ray single-crystal diffraction. The X-ray diffraction analysis reveals that I (C34H42CuN8O21) crystallizes in the monoclinic crystal system, space group P21/c. In I, the metal centers are linked by Bipy ligands to generate an infinite linear chain and the H2Tci ligands adopt monodentate coordination mode to graft the linear chain. The adjacent chains are linked by hydrogen bonds to form a three-dimensional supramolecular framework.