Liang-Cai Yu

Hydrothermal syntheses, crystal structures and antibacterial activities of two transition metal complexes with ciprofloxacin

Hydrothermal reactions of ciprofloxacin with Co(OH)2, and with oxalate and Fe(OH)3, yield [Co(Cip)2] · 2H2O (1) and [Fe(H-Cip) · (C2O4)] · (H2Cip) · 5H2O (2), which were characterized by elemental analysis, IR and single crystal diffraction analyses. Compounds 1 and 2 were screened for antibacterial activities against Staphylococcus aureas, Escherichia coli, Candida albicans and Pseudomonas aeruginosa.

Syntheses and crystal structures of Zn(II) and Co(II) complexes with ofloxacin and enoxacin

[Zn(Ofl) · (H2O)] · 2H2O (1) and [Co(Enox)2] · 4H2O (2) were obtained by hydrothermal reactions. The solid-state structures have been characterized by IR spectroscopy and single crystal X-ray diffraction analyses. Complex 1 crystallizes in the triclinic system, space group P 1, with lattice parameters a = 9.2923(5), b = 11.3432(6), c = 17.7722(10) Å, α = 92.839(3), β = 94.826(3), γ = 91.909(3)°, V = 1863.01(18) Å3, Z = 2, D Calcd = 1.494 mg m−3. The coordination environment around Zn2+ is a slightly distorted square pyramid. Complex 2 crystallizes in the triclinic system, space group P2(1)/c, with lattice parameters a = 5.97980(10), b = 21.4183(3), c = 13.1539(2) Å, V = 100.2810(10), Z = 2, D Calcd = 1.526 mg m−3, Co(II) ion is a distorted octahedral geometry.

Crystal structures and antibacterial activities of two enoxacin based compounds

Hydrothermal reactions of Cu(ClO4)2 · 6H2O and Cu(SO4)2 · 5H2O with enoxacin yielded two compounds, (H2-Eno) · ClO4 (1) and [Cu(H-Eno) · (H2O)2 · SO4] · 2H2O (2). Their solid-state structures have been characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction analyses. Compounds 1 and 2 were screened for antibacterial activity against Staphylococcus aureas, Escherichia coli, Pseudomonas aeruginos and Candida albicans.

Syntheses and crystal structure studies of two compounds of quinolones

Two complexes with enoxacin and ciprofloxacin were synthesized and the crystal structures are reported. Compound 1, [Cu(H-Eno) · Cl2] · 3H2O (H-Eno = Enoxacin), crystallizes in the triclinic system, space group P 1, with lattice parameters a = 8.7731(12) Å, b = 9.4976(14) Å, c = 13.2033(19) Å, α = 86.319(7)°, β = 71.912(7)°, γ = 80.604(7)°, V = 1031.6(3) Å3, Z = 2, D c = 1.625 mgm−3. 2, [Mn(Cip)2] · 2H2O (Cip = mono-anion of ciprofloxacin), crystallizes in the monoclinic, space group P2(1)/c, with lattice parameters a = 5.85690(10), b = 21.9490(6), c = 13.4443(3) Å, β = 100.9700(10)°, V = 1696.72(7) Å3, Z = 2, D c = 1.459 mgm−3.

Hydrothermal syntheses, crystal structures and antibacterial activities of two Cu(II) complexes with quinolones

Hydrothermal reactions of ciprofloxacin with Cu(ClO4)2 · 6H2O, and ofloxacin with Cu(CH3COO)2 · 4H2O, yield two metal complexes: [Cu(H-Cip)2] · (ClO4)2 · 6H2O (1) and [Cu(Ofl)2 · H2O] · 2H2O (2), which were characterized by elemental analysis, IR and single crystal diffraction analyses. Compounds 1 and 2 were screened for antibacterial activities against Staphylococcus aureus, Escherichia coli, Candida albicans and pseudomonas aeruginosa.

Syntheses and crystal structure studies of two zinc complexes of enoxacin

Two zinc complexes of enoxacin were synthesized and their crystal structures were determined. Compound 1, [Zn(H-Eno) · Cl2] · 3H2O (H-Eno = Enoxacin), crystallizes in the triclinic system, space group P 1, with lattice parameters a = 8.7731(12), b = 9.4976(14), and c = 13.2033(19) Å, α = 86.319(7)°, β = 71.912(7)°, and γ = 80.604(7)°, V = 1031.6(3) Å3, Z = 2, D Calcd = 1.631 Mg m−3; compound 2, [Zn(H-Eno) · (H2O)2] · 2NO3, also crystallizes in the triclinic system, space group P 1, with lattice parameters a = 8.751(2), b = 9.014(2), and c = 12.594(3) Å, α = 92.277(14)°, β = 109.867(12)°, and γ = 111.469(12)°, V = 854.1(3) Å3, Z = 1, D Calcd = 1.684 Mg m−3.

Synthesis and crystal structure of a Pb complex with ciprofloxacin

A hydrothermal reaction of ciprofloxacin with PbCl2 · 2H2O and Na2S yields a metal complex [Pb2(H-Cip)6S]Cl6 (I), which was characterized by elemental analysis, IR, and single crystal diffraction analyses. Complex I crystallizes in the rhombohedral system, space group

Double chains-copper(I)-based coordination polymer with strong blue fluorescent emission

R\bar 3c