Tetra-kis(µ(2)-2-phen-oxy-propionato)-κO,O':O';κO:O,O';κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')lanthanum(III)].

In the centrosymmetric binuclear title complex, [La(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two La(III) ions are linked by four 2-phen-oxy-propionate (L) groups in bi- and tridentate bridging modes. Each La(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate chelating carboxyl-ate group and four bridging carboxyl-ate groups in a distorted LaN(2)O(7) monocapped square-anti-prismatic geometry.

Bis(µ(2)-2-phen-oxy-propionato-κO:O')bis-[(1,10-phenanthroline-κN,N')bis-(2-phen-oxy-propionato-κO,O')ytterbium(III)].

In the centrosymmetric binuclear title complex, [Yb(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Yb(III) ions are linked by two 2-phen-oxy-propionate (L) groups in a bidentate bridging mode. Each Yb(III) ion is eight-coordinated by two O atoms from two bridging L ligands, four O atoms from two chelating L groups and two N atoms from one chelating phen mol-ecule in a distorted YbN(2)O(6) dodeca-hedral geometry.

Tetra-kis(µ-2-phen-oxy-propionato)-κO,O':O';κO:O,O';κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')holmium(III)].

The title compound, [Ho(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], lies about a centre of symmetry and is comprised of six 2-phen-oxy-propionate (POPA) anions and two 1,10-phenanthroline (phen) ligands. The two Ho(III) ions are linked by four POPA groups utilizing both bi- and tridentate bridging modes to form an inversion-symmetric dimer. Each Ho(III) ion is nine-coordinate, with a chelating 1,10-phenanthroline mol-ecule, one bidentate chelating carboxyl-ate group, two bidentate bridging carboxyl-ate groups and two tridentate bridging carboxyl-ate groups in a distorted mono-capped square anti-prism geometry. There are weak π-π aromatic inter-actions between the phen groups and aromatic rings of the POPA ligands [centroid-centroid distance = 3.829 (1) Å].

Tetra-kis(µ-2-phen-oxy-propionato)-κO,O':O';κO:O,O';κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')terbium(III)].

In the centrosymmetric binuclear title complex, [Tb(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Tb(III) ions are linked by four 2-phen-oxy-propionate (L) groups through their bi- and tridentate bridging modes. Each Tb(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate carboxyl-ate group and four bridging carboxyl-ate groups in a distorted TbN(2)O(7) monocapped square-anti-prismatic geometry.

Tetra-kis(µ-2-phen-oxy-propionato)-κO,O':O';κO:O,O',κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')dysprosium(III)].

In the centrosymmetric binuclear title complex, [Dy(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Dy(III) ions are linked by four 2-phen-oxy-propionate (L) groups through their bi- and tridentate bridging modes. Each Dy(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate carboxyl-ate group and four bridging carboxyl-ate groups in a distorted DyN(2)O(7) monocapped square-anti-prismatic geometry. The title compound is isotypic with its terbium-containing analogue.

Tetra-kis(µ-2-phen-oxy-propionato)-κO,O':O';κO:O,O',κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')praseodymium(III)].

In the centrosymmetric binuclear title complex, [Pr(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Pr(III) ions are linked by four 2-phen-oxy-propionate (L) groups through their bi- and tridentate bridging modes. Each Pr(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate carboxyl-ate group and four bridging carboxyl-ate groups in a distorted PrN(2)O(7) monocapped square-anti-prismatic geometry. The title compound is isotypic with its terbium- and dysprosium-containing analogues.

Tetra-kis(µ(2)-2-phen-oxy-propionato)-κO,O':O';κO:O,O';κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')cerium(III)].

In the centrosymmetric binuclear title complex, [Ce(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Ce(III) ions are linked by four 2-phen-oxy-propionate groups in bi- and tridentate bridging modes. Each Ce(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, two O atoms from a chelating carboxyl-ate, two O atoms derived from a µ(3)-carboxylate and two O atoms derived from two µ(2)-carboxylate ligands in a distorted CeN(2)O(7) monocapped square-anti-prismatic geometry.

Tetra-kis(µ(2)-2-phen-oxy-propionato)-κO,O':O';κO:O,O';κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')gadolinium(III)].

In the centrosymmetric binuclear title complex, [Gd(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Gd(III) ions are linked by four 2-phen-oxy-propionate (L) groups in bi- and tridentate bridging modes. Each Gd(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate chelating carboxyl-ate group and four bridging carboxyl-ate groups in a distorted GdN(2)O(7) monocapped square-anti-prismatic geometry.

Bis(µ-2-phen-oxy-propionato-κO:O')bis-[(1,10-phenanthroline-κN,N')bis-(2-phen-oxy-propionato-κO,O')samarium(III)].

The dimeric title compound, [Sm(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], is centrosymmetric and is composed of six 2-phen-oxy-propionate anions and two 1,10-phenanthroline ligands. The Sm(III) atom is coordinated by two O atoms from two bridging anions, four O atoms from two chelating anions and the N atoms of the N-heterocycle in a distorted dodeca-hedral geometry.

Bis[2-meth-oxy-6-(phenyl-iminiomethyl)phenolate-κO,O']bis-(thio-cyanato-κN)manganese(II).

The Mn(II) atom in the title complex, [Mn(NCS)(2)(C(14)H(13)NO(2))(2)], lies on a center of inversion in a MnO(4)N(2) octa-hedral geometry. The Schiff base is present in its zwitterionic form and is O,O'-chelated to the metal atom. The imino N atom is protonated and is involved in an intra-molecular hydrogen bond with the phenolate O atom.

2-Phenyl-1,3-selenazole-4-carb-oxy-lic acid.

In the title compound, C(10)H(7)NO(2)Se, the two rings are twisted, making a dihedral angle of 12.42 (9)°. In the crystal, pairs of mol-ecules are disposed about an inversion center, generating O-H⋯O hydrogen-bonded dimers.

Poly[[µ-aqua-bis-(µ-4,4'-bipyridine-κN:N')bis-(µ-3-hy-droxy-adamantane-1-carboxyl-ato-κO:O')bis-(3-hy-droxy-adamantane-1-carboxyl-ato-κO)dicobalt(II)] hepta-hydrate].

The title coordination compound, {[Co(C(11)H(15)O(3))(4)(C(10)H(8)N(2))(2)(H(2)O)]·7H(2)O}(n), consists of a pair of Co(II) atoms, four 3-hy-droxy-adamantane-1-carboxyl-ate anions (L), one water mol-ecule, two bridging 4,4'-bipyridine (4,4'-bpy) ligands and seven uncoordinated water mol-ecules. Both of the Co(II) ions are coordinated in a distorted octa-hedral geometry. Four L ligands bind to each pair of Co(II) atoms in a plane, two of which bridge the two Co(II) atoms as bidentate groups while the other two coordinate to a single Co(II) atom in a monodentate mode. Two half-mol-ecules of 4,4'-bipyridine coordinate the Co(II) atoms from the upside and underside. The packing features extensice O-H⋯O hydrogen bonding.

Tris[6-meth-oxy-2-(phenyl-iminiometh-yl)phenolato]-κO,O';κO-tris-(thio-cyanato-κN)samarium(III).

In the crystal structure of title compound, [Sm(NCS)(3)(C(14)H(13)NO(2))(3)], two of the zwitterionic Schiff base 6-meth-oxy-2-(phenyl-iminiometh-yl)phenolate ligands coordinate to the Sm(III) atom in a bidentate fashion via the phenolate and meth-oxy O atoms. The third Schiff base ligand is monodentate, binding only through the phenolate O atom. The coordination sphere of the eight-coordinate Sm atom is completed by the three independent thio-cyanate ions binding through their N atoms, affording a square-anti-prismatic geometry. An S atom of one of the thio-cyanate anions is disordered over two sites in a 0.85:0.15 ratio. In the phenolate ligands, the proton of the phenolic hy-droxy group transfers to the imine N atom. This proton is also involved in an intra-molecular N-H⋯O hydrogen bond that imposes a nearly planar conformation on each ligand, with dihedral angles of 1.75 (4), 3.68 (5) and 3.86 (4)° between the aromatic rings of each ligand.

catena-Poly[[[bis-(3-hy-droxy-adamantane-1-carboxyl-ato-κO)(3-hy-droxy-adamantane-1-carb-oxy-lic acid-κO)zinc(II)]-µ(2)-4,4'-bipyridine] monohydrate].

In the title coordination polymer, {[Zn(C(11)H(15)O(3))(2)(C(10)H(8)N(2))(C(11)H(16)O(3))]·H(2)O}(n), the Zn(II) ion is five coordinated by two N atoms from two 4,4'-bipyridine (4,4'-bpy) mol-ecules and three O atoms from two 3-hy-droxy-adamantane-1-carboxyl-ate anions (L) and one 3-hy-droxy-adamantane-1-carb-oxy-lic acid (HL) mol-ecule. The resulting coordination polyhedron is a near regular ZnN(2)O(3) trigonal bipyramid, with the N atoms in axial sites. The 4,4'-bpy mol-ecules [dihedral angle between the aromatic rings = 17.2 (2)°] act as bridges, connecting the metal ions into an infinite polymeric chain propagating in [[Formula: see text]01]. O-H⋯O hydrogen bonds help to consolidate the packing.

Triaqua-bis-{2-meth-oxy-6-[(phenyl-iminium-yl)meth-yl]phenolate-κO}manganese(II) dinitrate.

The crystal structure of the title compound, [Mn(C(14)H(13)NO(2))(2)(H(2)O)(3)](NO(3))(2), is comprised of two Schiff base 2-meth-oxy-6-(N-phenyl-carboximido-yl)phenol (HL) ligands and three coordinated water mol-ecules. The Mn(II) ion lies on a twofold axis that bis-ects one water O atom. The coordination sphere of the five-coordinate Mn atom is completed by the two monodentate HL ligands and three coordinated water mol-ecules binding through their O atoms, affording a distorted tetra-gonal-pyramidal geometry. In the phenolate ligands, the hy-droxy H atom transfers to the imine N atom. This H atom is also involved in an intra-molecular N-H⋯O hydrogen bond that imposes a nearly planar conformation on each ligand, with dihedral angles of 2.78 (3) and 2.43 (5)° between the aromatic rings of each ligand. In the crystal, mol-ecules are linked by inter-molecular O-H⋯O hydrogen bonds.

Tris(1,10-phenanthroline-κN,N')zinc(II) chloride 2-phenyl-4-selenazole-5-car-box-yl-ate decahydrate.

The asymmetric unit of the title salt, [Zn(C(12)H(8)N(2))(3)](C(10)H(6)NO(2)Se)Cl·10H(2)O, contains a [Zn(phen)(3)](2+) cation (phen is 1,10-phenanthroline), uncoordinated chloride and 2-phenyl-4-selenazole-5-carboxyl-ate anions and ten uncoord-in-ated water mol-ecules. The central Zn(II) ion is six-coordinated by six N atoms from three phen ligands in a distorted octa-hedral geometry. An extensive O-H⋯O, O-H⋯N and O-H⋯Cl hydrogen-bonding network stabilizes the crystal structure.

Poly[(µ(2)-4,4'-bipyridine-κN:N')bis-(µ(2)-2-phen-oxy-propionato-κO:O')cobalt(II)].

In the polymeric title compound, [Co(C(9)H(9)O(3))(2)(C(10)H(8)N(2))](n), the Co(II) ion is located on a twofold rotation axis and is six-coordinated by two N atoms from two 4,4'-bipyridine (4,4'-bipy) ligands in axial positions and by four O atoms from four 2-phen-oxy-propionate (POPA) anions in equatorial positions, defining a slightly distorted octa-hedral geometry. The carboxyl-ate group of the POPA anion displays a bis-monodentate mode, linking pairs of Co(II) ions into a chain parallel to [001]. Adjacent chains are connected in a perpendicular manner through 4,4'-bipy ligands into layers parallel to (100). The 4,4'-bipy ligand is likewise located on a twofold rotation axis, with a dihedral angle between the two pyridine rings of 57.05 (7)°. C-H⋯O hydrogen-bonding inter-actions are present within the layers. π-π stacking inter-actions between the POPA benzene rings of neighbouring layers [centroid-to-centroid distance = 3.976 (3) Šand plane-to-plane distance = 3.618 (3) Å] stabilize the packing of the structure.

Bis{6-meth-oxy-2-[(4-methyl-phen-yl)iminiometh-yl]phenolate-κO,O'}tris-(nitrato-κO,O')holmium(III) mono-hydrate.

The crystal structure of the title compound, [Ho(NO(3))(3)(C(15)H(15)NO(2))(2)]·H(2)O, contains two Schiff base 6-meth-oxy-2-[(4-methyl-phen-yl)iminiometh-yl]phenolate (L) ligands, three independent nitrate ions that chelate to the Ho(III) ion with O atoms and a hydrate water mol-ecule. The coordination environment of the Ho(III) ion is ten-coordinate. The L ligands chelate with a strong Ho-O(phenolate) bond and weaker Ho-O(meth-oxy) contacts. The latter can be inter-preted as the apices of the bicapped square-anti-prismatic [HoO(10)] polyhedron. Inter-molecular N-H⋯O hydrogen bonds occur. Intra-molecular O-H⋯O inter-actions link the complex mol-ecules and uncoordinated water mol-ecules.

Tris{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate-κO,O'}tris-(thio-cyanato-κN)lanthanum(III).

In the title compound, [La(NCS)(3)(C(15)H(15)NO(2))(3)], the metal centre is nine-coordinated by six O atoms from three zwitterionic Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminio-meth-yl]phenolate (L) ligands and three terminal N atoms of the thio-cyanate ions in a monocapped square-anti-prismatic environment. The L ligands chelate the La(III) ion with strong La-O(deprotonated phenolic) bonds [2.435 (3)-2.464 (3) Å] and significantly longer La-O(meth-oxy) bonds [2.801 (3)-2.831 (3) Å]. The La-N bond lengths range from 2.541 (4) to 2.605 (4) Å.

Tris[2-meth-oxy-6-(4-methyl-phenyl-iminio-meth-yl)phenolato-κO,O']tris-(thio-cyanato-κN)neodymium(III).

In the title compound, [Nd(NCS)(3)(C(15)H(15)NO(2))(3)], the Nd(III) ion is coordinated by three thio-cyanate anions [Nd-N = 2.489 (8)-2.530 (7) Å] and six O atoms [Nd-O = 2.375 (4)-2.843 (5) Å] from three zwitterionic 2-meth-oxy-6-(4-methyl-phenyl-iminiometh-yl)phenolate ligands in a tricapped trigonal-prismatic geometry. Intra-molecular N-H⋯O hydrogen bonds occur. The crystal packing exhibits weak inter-molecular C-H⋯S hydrogen bonds, π-π inter-actions with a distance of 3.904 (7) Šbetween the centroids of the aromatic rings, and voids of 101 Å(3).