Three pairs of luminescent coordination polymers based on Co and Cd clusters for the detection of antibiotics, pesticides and chiral nitro aromatic compounds.

Three couples of coordination polymers (CPs), namely, [Co((/)-Hcna)] (1-D/L), [Cd((1,2/1,2)-cpba)(phen)(HO)] (2-D/L) and [Cd((1,2/1,2)-Hcpba)(phen)] (3-D/L) {(/)-Hcna = (/)-6-(1-carboxyethoxy)-2-naphthoic acid, (1,2/1,2)-Hcpba = (1,2/1,2)-2,2'-((5-carboxy-1,3-phenylene)bis(oxy))dipropionic acid, phen = 1,10-phenanthroline} are successfully synthesized under hydrothermal conditions. Structural analysis shows that CP 1 has a 3D 3,6-c net structure with a point symbol of (4·6)(4·6·8). CPs 2 and 3 are obtained under very similar reaction conditions except using different solvent ratios.

Three new coordination polymers based on bis(4-(4-1,2,4-triazol-4-yl)phenyl)methane: syntheses, structures, multiresponsive luminescent sensitive detection for antibiotics and pesticides, and antitumor activities.

Three novel coordination polymers (CPs), namely, {[Ag(L)(MoO)·(CHCN)]} (1), {[Zn(L)(1,4-bdc)·2(1,4-Hbdc)]} (2), {[Cd(L)(1,4-bdc)]} (3) have been synthesized under solvothermal conditions by the reaction of bis(4-(4-1,2,4-triazol-4-yl)phenyl)methane (L) and varied metal salts. Their structures are determined by single X-ray crystal diffraction, and further characterized by elemental analysis, IR, TGA and PXRD. CP 1 with ammonium molybdate as a secondary ligand displays a 2D network with (2,3,3,3,4)-connected net topology and the point symbol of {4·8}{4·8·10}{8}, CP 2 and CP 3 with 1,4-Hbdc as a secondary ligand demonstrate 3D structures with different topologies.

catena-Poly[[nickel(II)-μ2-[1,3-bis(imidazol-1-ylmethyl)benzene-κ2N3:N3']-μ2-(5-carboxybenzene-1,3-dicarboxylato-κ4O1,O1':O3,O3')] 0.41-hydrate].

The title compound, {[Ni(C(9)H(4)O(6))(C(14)H(14)N(4))]·0.41H(2)O}(n), exhibits a three-dimensional hydrogen-bonded supramolecular framework. The Ni(II) cation is six-coordinated in a distorted triangular prism defined by two N atoms from two 1,3-bis(imidazol-l-ylmethyl)benzene (bix) ligands and four O atoms from two 5-carboxybenzene-1,3-dicarboxylate (HBTC) dianions.

Piperazine-1,4-diium (R)-2-[4-(1-car-boxy-l-atometh-oxy)phen-oxy]propano-ate.

In the anion of the title mol-ecular salt, C(4)H(12)N(2) (2+)·C(11)H(10)O(6) (2-), the two acetate groups form torsion angles of 74.1 (1) and 7.1 (1)° with the central benzene ring, and the cation exhibits a chair conformation.

2-Methyl-sulfonyl-4-(trifluoro-meth-yl)benzoic acid.

In the title mol-ecule, C(9)H(7)F(3)O(4)S, the S and the methyl C atoms of the methyl-sulfonyl group deviate from the benzene ring plane by 0.185 (2) and -1.394 (3) Å, respectively.

2-(4-Isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)-5-methyl-nicotinic acid.

In the title herbicideh/phytocide, known as imaza-pic, C(14)H(17)N(3)O(3), the pyridine and imidazole rings are almost coplanar [dihedral angle = 3.08 (5)°]. An intra-molecular O-H⋯N hydrogen bond occurs.

4-(2,3-Dimeth-oxy-phen-yl)-1H-pyrrole-3-carbonitrile.

The asymmetric unit of the title compound, C(13)H(12)N(2)O(2), obtained in a search for analogs of the fungicide fludioxonil [systematic name: 4-(2,2-difluoro-1,3-benzodioxol-4-yl)-1H-pyrrole-3-carbonitrile], contains two independent mol-ecules, A and B. The benzene and pyrrole rings are inclined to each other at 38.5 (1) and 29.

catena-Poly[(dichloridozinc)-μ-1-{4-[(1H-imidazol-1-yl)meth-yl]benz-yl}-1H-imidazole-κ(2)N(3):N(3')].

The asymmetric unit of the title compound, [ZnCl(2)(C(14)H(14)N(4))](n), contains a Zn(II) ion situated on a twofold rotation axis and one-half of a 1-{4-[(1H-imidazol-1-yl)meth-yl]benz-yl}-1H-imidazole (L) ligand with the benzene ring situated on an inversion center. The Zn(II) ion is coordinated by two chloride anions and two N atoms from two L ligands in a distorted tetra-hedral geometry. The L ligands bridge ZnCl(2) fragments into polymeric chains parallel to [20-1].

catena-Poly[(dichloridozinc)-μ-4,4'-bis-[(1H-imidazol-1-yl)meth-yl]biphenyl-κ(2)N(3):N(3')].

In the title compound, [ZnCl(2)(C(20)H(18)N(4))](n), the Zn(II) ion lies on a twofold rotation axis and is four-coordinated in a tetra-hedral geometry defined by two Cl anions and two N atoms from two 4,4'-bis-[(imidazol-1-yl)meth-yl]biphenyl ligands. The mid-point of the ligand is located on an inversion center, and shows a trans conformation. The ligands link the Zn(II) ions, forming a chain structure along [10-1].

Ethane-1,2-diaminium (R)-2-[4-(1-carboxyl-atoeth-oxy)phen-oxy]acetate.

In the title compound, C(2)H(10)N(2) (2+)·C(11)H(10)O(6) (2-), the two acetate groups of the cation form dihedral angles of 74.2 (4) and 63.9 (5)° with the central benzene ring.

4-(2,2-Difluoro-1,3-benzodioxol-4-yl)-1H-pyrrole-3-carbonitrile.

In the title compound, C(12)H(6)F(2)N(2)O(2), the 2,2-difluoro-1,3-benzodioxole ring system is approximately planar [maximum deviation = 0.012 (2) Å] and its mean plane is twisted with respect to the pyrrole ring, making a dihedral angle of 2.51 (9)°.

Bis[1,1'-(1,3-phenyl-enedimethyl-ene)di(1H-imidazol-3-ium)] β-octa-molybdate.

In the title compound, (C(14)H(16)N(4))(2)[Mo(8)O(26)], the β-octa-molybdate anion is centrosymmetric. N-H⋯O hydrogen bonds link the diimidazolium cations and the polyoxidoanions into a chain structure along [100]. π-π inter-actions between the imidazole rings and between the imidazole and benzene rings [centroid-centroid distances = 3.

catena-Poly[[[diaqua-manganese(II)]-bis-[μ-1,3-bis-(1H-imidazol-1-ylmeth-yl)benzene-κN:N]] dinitrate].

In the title compound, {[Mn(C(14)H(14)N(4))(2)(H(2)O)(2)](NO(3))(2)}(n), the Mn(II) ion is located on an inversion center and is coordinated by four N atoms from four 1,3-bis-(1H-imidazol-1-ylmeth-yl)benzene (L) ligands and two water mol-ecules in a distorted octa-hedral geometry. Two L ligands are related by a centre of symmetry and bridge Mn(II) ions, forming a positively charged polymeric chain in [101]. Uncoordinated nitrate anions further link these chains into layers parallel to the ac plane via O-H⋯O hydrogen bonds.

1,1'-[(Biphenyl-4,4'-di-yl)bis-(methyl-ene)]di-1H-imidazol-3-ium tetra-chlorido-mercurate(II).

In the title compound, (C(20)H(20)N(4))[HgCl(4)], the Hg(II) ion is four-coordinated in a tetra-hedral environment defined by four chloride ions. The dihedral angle between the two phenyl rings is 32.83 (15)°.

catena-Poly[[dichloridomercury(II)]-μ-1,4-bis-[(pyridin-2-yl)meth-oxy]benzene-κN:N'].

In the title compound, [HgCl(2)(C(18)H(16)N(2)O(2))](n), the Hg(II) atom is four-coordinated in a distorted tetra-hedral environment defined by two Cl atoms and two N atoms from two 1,4-bis-(pyridin-2-ylmeth-oxy)benzene ligands. The ligand shows a non-coplanar conformation, in which the dihedral angles between the two terminal pyridine rings and the linking benzene ring are 7.275 (17) and 74.

catena-Poly[[bis-(nitrato-κO)cadmium]bis-[μ-1,4-bis-(pyridin-3-yl-meth-oxy)benzene-κN:N']].

In the title compound, [Cd(NO(3))(2)(C(18)H(16)N(2)O(2))(2)](n), the six-coordinated Cd(II) ion is located on an inversion center and has a distorted octa-hedral environment defined by four N atoms from four 1,4-bis-(pyridin-3-ylmeth-oxy)benzene ligands and two O atoms from two nitrate anions. The ligands link the Cd(II) ions into a ribbon-like structure running along [201]. One O atom of the nitrate anion is disordered over two positions with site-occupancy factors of 0.

Di-μ-chlorido-bis-{[1,2-bis-(pyridin-2-ylmeth-oxy)benzene-κN,O,O',N']chloridocadmium}.

In centrosymmetric dinuclear title compound, [Cd(2)Cl(4)(C(18)H(16)N(2)O(2))(2)], the Cd(II) atom is seven-coordinated in a penta-gonal-bipyramidal environment defined by two N atoms and two O atoms from one ligand and three Cl(-) anions, two of which are bridging. A π-π inter-action between adjacent pyridine rings [centroid-centroid distance = 3.773 (1) Å] further stablizes the dimer.

catena-Poly[[dichloridozinc(II)]-μ-1,4-bis-(pyridin-2-ylmeth-oxy)benzene-κN:N'].

In the title compound, [ZnCl(2)(C(18)H(16)N(2)O(2))](n), the Zn(II) ion is tetra-hedrally coordinated by two Cl atoms and by two N atoms from different 1,4-bis-(pyridin-2-ylmeth-oxy)benzene ligands. The ligand shows a non-planar configuration, in which the dihedral angles between the two terminal pyridine rings and the linking benzene ring are 7.86 (12) and 70.

catena-Poly[[bis-(nitrato-κO)cobalt(II)]-bis-[μ-1,4-bis-(pyridin-3-ylmeth-oxy)benzene-κN:N']].

In the title compound, [Co(NO(3))(2)(C(18)H(16)N(2)O(2))(2)](n), the Co(II) ion is located on an inversion center and is six-coordinated in an octa-hedral environment defined by four N atoms of the pyridine rings and two O atoms of the nitrate anions. The ligands link the Co(II) ions into a linear chain running along [201]. One O atom of the nitrate ligand is disordered over two positions with site-occupancy factors of 0.

catena-Poly[[bis-(nitrato-κO)copper(II)]-bis-[μ-1,4-bis-(pyridin-3-ylmeth-oxy)benzene-κN:N']].

In the title compound, [Cu(NO(3))(2)(C(18)H(16)N(2)O(2))(2)](n), the Cu(II) ion lies on an inversion center and is six-coordinated in a Jahn-Teller-distored octa-hedral geometry defined by four N atoms of the pyridine derivative forming a square plane, above and below which are the O atoms of the nitrate anion. The ligand links the metal atoms linto a linear chain running along the a axis. One of the nitrate O atoms is equally disordered over two sets of sites.

(Z)-N-{3-[(6-Chloro-pyridin-3-yl)meth-yl]-1,3-thia-zolidin-2-yl-idene}cyanamide.

The asymmetric unit of the title compound, C(10)H(9)ClN(4)S, common name thia-cloprid, comprises two mol-ecules. In both mol-ecules, the thia-zolidine rings are almost planar (with r.m.

[1,2-Bis(pyridin-2-ylmeth-oxy)benzene-κN,O,O',N']bis-(nitrato-κO)cobalt(II).

In the title compound, [Co(NO(3))(2)(C(18)H(16)N(2)O(2))], the Co(II) ion is six-coordinated in a distorted octa-hedral environment defined by two O and two N atoms from the ligand and by two O atoms from two nitrate anions. A two-dimensional network parallel to the ab plane is built up by C-H⋯O hydrogen bonds, which link adjacent mol-ecules in the crystal structure.

[1,2-Bis(pyridin-2-ylmeth-oxy)benzene-κN,O,O',N']dichloridocopper(II).

In the title compound, [CuCl(2)(C(18)H(16)N(2)O(2))], the Cu(II) atom lies on a twofold axis and is six-coordinated in a distorted octa-hedral environment defined by two N and two O atoms from the ligand and by two Cl atoms. In the crystal, π-π inter-actions [centroid-centroid distance = 3.838 (1) Å] and C-H⋯Cl hydrogen bonds link adjacent mol-ecules into a chain structure along [101].

[1,2-Bis(2-pyridyl-meth-oxy)benzene-κN,O,O',N']bis-(nitrato-κO)copper(II).

In the title compound, [Cu(NO(3))(2)(C(18)H(16)N(2)O(2))], the Cu(II) ion is six-coordinated in a Jahn-Teller-distorted octa-hedral environment defined by two O and two N atoms from the ligand and two O atoms from two monodentate nitrate anions.

Bis(acetato-κO)[1,2-bis-(2-pyridyl-meth-oxy)benzene-κN,O,O',N']copper(II) tetra-hydrate.

In the title compound, [Cu(CH(3)COO)(2)(C(18)H(16)N(2)O(2))]·4H(2)O, the Cu(II) ion is six-coordinated in a Jahn-Teller-distorted octa-hedral geometry environment defined by four O atoms and two N atoms. A chain structure along [100] is built up by inter-molecular O-H⋯O hydrogen bonds involving the uncoordinated water mol-ecules.