A New Cadmium(Ⅱ) Coordination Polymer Constructed by 2-(2-Chloro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,2,3-Benzenecarboxylate: Synthesis, Structure and Luminescence

A new Cd（II） coordination polymer, namely, [Cd3（1,2,3-BTC）2（L）2]·2.25H2O （1, L = 2-（2-chloro-6-fluorophenyl）-1H-imidazo[4,5-A][1,10]phenanthroline and 1,2,3-BTC = 1,2,3-ben- zenetricarboxylate）, has been synthesized under hydrothermal conditions. The compound was characterized by single-crystal X-ray diffraction. It crystallizes in triclinic, space group Pī with α = 11.650（2）, b = 12.240（2）, c = 19.760（4） A, α = 72.01（3）, β = 77.11（3）, γ = 83.48（3）°, V = 2609.4（9） A3, Z = 2, C56H31Cd3Cl2F2N8O14.25, Mr = 1489.99, Dc = 1.896 g/cm3, F（000） = 1466, μ（MoKa） = 1.401 mm^-1, R = 0.0401 and wR = 0.1104. Compound 1 shows a 1D chain structure, and the neigh- boring 1D chains of 1 are joined together by π···π interactions to result in a 2D supramolecular layer. In addition, the luminescent property of 1 has been studied in the solid state at room temperature.

Crystal Structure and Biological Activities of (R)-N′-[2-(4-Methoxy-6-chloro)-pyrimidinyl]-N-[3-methyl-2-(4-chlorophenyl)butyryl]-urea

The title compound （R）-N′-[2-（4-methoxy-6-chloro）-pyrimidyl]-N-[3-methyl-2-（4- chlorophenyl）butyryl]-urea has been synthesized, and its crystal structure and biological behaviors were studied. Crystallographic data： C17H18C12N4O3, Mr = 397.25, monoclinic, space group P21/c, a = 12.331（2）, b = 14.025（3）, c = 23.085（5） A, β = 99.607（4）°, Z = 8, V = 3936.2（13） A3, Dc = 1.341 g/cm^3, F（000） = 1648, R = 0.0718, wR = 0.1585 and/t（MoKα） = 0.353 mm^-1. The preliminary biological tests showed that the title compound has definite insecticidal and fungicidal activities.

Synthesis, Crystal Structure, Thermal Behavior and Photoluminescent Property of Complex [Zn(L)(SO_4)]·0.5H_2O

Complex [Zn（L）（SO4）]0.5H20 （L = 2-（2-chloro-6-fluorophenyl）-lH-imidazo[4,5- J][1,10]phenanthroline） has been synthesized under hydrothermal conditions. The compound was characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 9.9916（7）, b = 12.3834（9）, c = 29.259（2） A, fl = 97.7720（10）°, V = 3587.0（4） A^3, Z = 2, C76H41CI4F4NI60952Zn2, Mr = 1734.91, Dc = 1.606 g/cm^3, F（000） = 1754, p（MoKa） = 0.959 mm-1, R = 0.0492 and wR = 0.1385. The asymmetric unit of 1 contains one Zn（lI） atom, two L ligands, one sulfate anion and half a water molecule. Each Zn（lI） atom is five-coordinated by four nitrogen atoms from two different L ligands and one sulfate oxygen atom in a tetragonal pyramidal coordination environment. The N-H＇＂O hydrogen bonds link the discrete structure of 1 into a 2D supramolecular architecture. The photoluminescent property of 1 has also been studied in the solid state at room temperature.

Synthesis,Structure and Thermal Stability of a New Lead Coordination Polymer:[Pb(L1)(L2)]·1.25H2O

A new Pb（Ⅱ） coordination polymer [Pb（L1）（L2）]·1.25H2O has been synthesized with 2-（4-fluorophenyl）-1H-imidazo[4,5-f][1,10]phenanthroline （L1） and sebacic acid （H2L2） under hydrothermal conditions. Crystallographic data： triclinic, space group Pī with a=8.4890（17）, b=12.471（3）, c=14.604（3）, α=67.04（3）, β=74.08（3）, γ=85.80（3）°, V=1368.0（5）3 , Z=1, C58H59F2N8O10.5Pb2 , Mr=1488.51, Dc=1.807g/cm3 , F（000）=729, μ（MoKa）=6.221mm-1 , R=0.0283 and wR=0.0564. The L2 dianions bridge neighboring Pb（Ⅱ） atoms to form a two-dimensional layer structure. The π-π interactions between the L1 ligands of neighboring layers led to a three-dimensional supramolecular architecture. The IR and TGA of the complex have been studied in detail.

Synthesis, Structure and Characterization of a New Iron Coordination Polymer:[Fe(L)(trans-1,4-chdc)]_n

A novel Fe（II） coordination polymer [Fe（L）（trans-1,4-chdc）];~ has been hydrother- mally synthesized by using 1,4-cyclohexanedicarboxylic acid （1,4-H2chdc） and 2-（2-fluoro- phenyl）-lH-imidazo[4,5-f][1,10]phenanthroline （L）. Crystallographic data： monoclinic, space group C2/c with a = 14.571（5）, b = 32.389（6）, c = 10.948（5）A, 18 = 115.186（5）°, V= 4676（3）A3, Z = 8, C27H21FFeN404, Mr = 540.33, De --- 1.535 g/cm3, F（000） = 2224, μ（MoKa） = 0.697 mmI, R = 0.0462 and wR = 0.1110. The two kinds of trans-l,4-chdc ligands link neighboring Fe（II） atoms to yield a two-dimensional layer structure. The π-π interactions between the L ligands of neighboring layers result in a three-dimensional supramolecular architecture. The IR and UV-vis spectra of the compound have been investigated in detail.

Synthesis and Crystal Structure of a New Lead Coordination Polymer: [Pb(L)(1,4-ndc)]

The title coordination polymer, [Pb（L）（1,4-ndc）] 1 （L = 2-（4-fluorophenyl）-1Himidazo[4,5f1,10]phenanthroline, 1,4-ndc = naphthalene-1,4-dicarboxylic acid）, has been obtained by using hydrothermal synthesis and characterized by elemental analysis, IR and singlecrystal X-ray diffraction. It crystallizes in monoclinic, space group P21/c with a = 10.1043（11）, b = 14.3162（15）, c = 17.6061（18）, β = 95.3990（10）°, V = 2535.5（5）3, Z = 4, C31H17FN4O4Pb, Mr = 735.68, Dc = 1.927 g/cm3, F（000） = 1416, μ（MoKa） = 6.709 mm-1, R = 0.0201 and wR = 0.0489. The 1,4-ndc dianions link neighboring Pb（II） atoms in a bis-chelating mode, yielding a one-dimensional chain structure along the c axis. The C-H···π interactions between the carbon atom of L ligand and the benzene ring of 1,4-ndc lead the one-dimensional chains to form a two-dimensional supramolecular layer. The π-π interactions between L ligand and 1,4-ndc ligand make the two-dimensional layers generate a three-dimensional supramolecular architecture. Additionally, the N-H···O hydrogen bonds further stabilize the structure of 1.