Dichlorido(dipyrido[3,2-a:2',3'-c]phenazine)manganese(II).

The complete mol-ecule of the title compound, [MnCl(2)(C(18)H(10)N(4))(2)], is generated by crystallographic twofold symmetry with the Mn atom lying on the rotation axis. The Mn coordination geometry is a distorted cis-MnCl(2)N(4) octa-hedron, arising from two N,N'-bidentate dipyrido[3,2-a:2',3'-c]phenazine (DPPZ) ligands and two chloride ions. In the crystal structure, neighbouring mononuclear units pack together through π-π contacts between the DPPZ rings [shortest centroid-centroid distance = 3.

Bis[3,5-difluoro-2-(2-pyrid-yl)phen-yl](picolinato)iridium(III).

The Ir centre in the title complex, [Ir(C(11)H(6)F(2)N)(2)(C(6)H(4)NO(2))], is six-coordinated in a slightly distorted octa-hedral IrC(2)N(3)O fashion.

catena-Poly[[[bis-[4-(1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthren-2-yl)-phenol-κN,N]lead(II)]-μ-4,4'-oxy-dibenzoato-κO,O':O''] dihydrate].

The carboxyl-ate dianion in the title compound, [Pb(C(14)H(8)O(5))(C(19)H(12)N(4)O)(2)]·2H(2)O, uses one carboxyl-ate group to O,O'-chelate a bis-[4-(1H-1,3,7,8-tetra-azacyclo-penta-[l]phen-anthren-2-yl)phenol]-chelated Pb(II) atom and uses its other carboxyl-ate group to bind to another Pb(II) atom in an irregular monodentate manner. The Pb(II) atom exists in an undefined seven-coordinate geometry in the chain structure; the lone pair is stereochemically active. Adjacent chains are linked by inter-molecular O-H⋯N, N-H⋯O and O-H⋯O hydrogen bonds that involve the uncoordinated water mol-ecules to form a three-dimensional network.

Poly[di-μ(5)-adipato-κO:O':O'':O''',O'''-μ(4)-adipato-κO:O':O'':O'''-bis-[2-phenyl-1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthrene-κN,N]tricobalt(II)].

In the title polymer, [Co(3)(C(6)H(8)O(4))(3)(C(19)H(12)N(4))(2)](n), two adipate dianions (C(6)H(8)O(4) (2-)) occupy general positions and two are situated on different inversion centres. The two on general positions bind through their four O atoms to five 2-phenyl-1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthrene-chelated Co(II) ions, whereas the two on special positions bind to only four. Of the three Co atoms, two are chelated by N-heterocycles; the third is bonded to six O atoms.

Poly[[μ(4)-naphthalene-1,4-dicarboxyl-ato-κO:O':O'':O'''-μ(2)-naphthalene-1,4-dicarboxyl-ato-κO,O':O'',O'''-bis-(2-phenyl-1H-1,3,7,8-tetra-azacyclopenta-[l]phenanthrene-κN,N)dimanganese(II)] N,N-dimethyl-formamide solvate].

One of the two 1,4-dicarboxyl-ate dianions in the title compound, [Mn(2)(C(12)H(6)O(4))(2)(C(19)H(12)N(4))(2)]·C(3)H(7)NO, uses its two carboxyl-ate groups to chelate two N-heterocycle-chelated Mn atoms; the other 1,4-dicarboxyl-ate dianion binds to four such metal centers. The octa-hedrally coordinated Mn atoms are linked through the two dianions into a layer motif; the dimethyl-formamide mol-ecules occupy the spaces between adjacent layers. Ten C atoms and attached H atoms of one dianion are disordered equally over two positions.

catena-Poly[[[bis-[4-(1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthren-2-yl)phenol-κN,N]manganese(II)]-μ-naphthalene-1,4-dicarboxyl-ato-κO:O] naphthalene-1,4-dicarboxylic acid hemisolvate monohydrate].

The 1,4-dicarboxyl-ate dianions in the title compound, [Mn(C(12)H(6)O(4))(C(19)H(12)N(4)O)(2)]·0.5C(12)H(8)O(4)·H(2)O, bond to two 4-(1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthren-2-yl)phenol-chelated Mn atoms to form a chain that features the metal atom in an octa-hedral coordination geometry. Adjacent chains inter-act with the uncoordinated water mol-ecules to form a three-dimensional network.