A novel coordination polymer of [Cu(4-OPA)2]n (4-OPA-=4-oxo-1(4H)-pyridineacetate anion) was synthesized and characterized by elemental analysis, IR, TG, fluorescence and X-ray single crystal diffraction. The title complex crystallizes in triclinic with space group P1, a=0.713 17(14) nm, b=0.739 81(15) nm, c=0.753 02(15) nm, α=91.46(3)°, β=109.14(3)°, γ=111.31(3)°. V=0.344 92(17) nm3, Z=1, R=0.028 6, wR=0.080 3. The Cu atom occupies an inversion site in an octahedral environment, defined by two carbonyl O atoms and four carboxyl O atoms from different 4-OPA- ligands. Adjacent Cu髤 atoms are bridged by the 4-OPA- ligands, forming a one-dimensional double chain structure. The closest Cu...Cu distance is 0.850 6(3) nm. The results of TG and fluorescent analysis show that the title coordination polymer is stable under 262.8 ℃ and has two emission peaks at 422 and 484 nm. CCDC: 287038.
A oxovanadium(V) complex of [VOL(C9H6NO)]·CH2Cl2 [H2L=2-hydroxy-1-naphthaldehyde 4-methoxy-benzoylhydrazone, C9H6NO-=8-hydroxyquinoline anion] has been synthesized and characterized by elemental analyses, IR and single crystal X-ray diffraction. The crystal crystallizes in triclinic system, the space group is P1, with the crystal cell parameters a=1.087 0(2) nm, b=1.107 1(2) nm, c=1.269 3(3) nm, α=67.84(3)°, β=79.26(3)°, γ=73.85(3)° and V=1.353 1(6) nm3, Mr=614.34, R=0.0503, wR=0.1409. The V(V) atom is six-coordinated by one O atom of oxo group, two O atoms and one N atom of the tridentate hydrazone ligand, as well as one N atom and one O atom of 8-hydroxyquinoline ligand, thus defining a distorted octahedral VO(ONO)(NO) geometry. A two-dimensional supramolecular layer structure is formed through π-π stacking interactions. CCDC: 268672.
A novel binuclear copper complex of [Cu(C14H8O3)(C9H7N)(C2H5OH)]2 was synthesized and characterized by elemental analysis, IR, thermal analysis and X-ray single crystal diffraction. The title complex crystallizes in monoclinic system, space group P21/c with a=1.381 7(3) nm, b=1.184 3(2) nm, c=1.332 5(3) nm, β=104.77(3)°. Each copper(II) atom is five-coordinated by three oxygen atoms from two different 9-hydroxy-fluorene-9-carboxylate ligands, one quinoline nitrogen atom and one ethanol oxygen atom, forming a distorted square-pyramidal coordination geometry. Two copper(II) atoms are linked by two 9-hydroxy-fluorene-9-carboxylate ligands into a dimmer structure with the Cu...Cu separation being 0.298 39(8) nm. The dinuclear motifs are further linked into a two-dimensional supramolecular layer via hydrogen bonds interactions. CCDC: 272850.
A 2D copper coordination polymer of [Cu2(3-PyOH)2(EDTA)]n (EDTA4-=ethylenediaminetetraacetate quadrivalent anion C10H12N2O8, 3-PyOH=3-hydroxypyridine) was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. The title complex crystallizes in monoclinic system with space group P21/c, a=1.3275(3) nm, b=0.93039(19) nm, c=0.94844(19)nm, β=108.21(3)°, and V=1.1128(4) nm3, Z=2, R=0.0252, wR=0.0661. Each copper(Ⅱ) atom is five-coordinated by three O atoms and one N atom from two different EDTA4-groups and one N atom from 3-PyOH ligand, forming a distorted square-pyramidal coordination geometry. Two adjacent copper(Ⅱ) atoms are bridged by the bis-tetradentate EDTA4- groups, constructing a two-dimensional layer structure along bc plane. The adjacent Cu…Cu distances are 0.5025(3) and 0.6113(3) nm.
