J. Appl. Cryst.の発刊に際して

The title NiII complex, [Ni(C7H4ClO2)2(C6H6N2O)2(H2O)2], is centrosymmetric with the Ni atom located on an inversion centre. The mol­ecule contains two 2-chloro­benzoate (CB) and two nicotinamide (NA) ligands and two water mol­ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement, while the slightly distorted octa­hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl group and the adjacent benzene ring is 29.48 (16)°, while the pyridine and benzene rings are oriented at a dihedral angle of 83.16 (5)°. In the crystal structure, O—H⋯O and N—H⋯O hydrogen bonds link the mol­ecules into infinite chains. π–π Contacts between the benzene and pyridine rings [centroid–centroid distance = 3.952 (1) A] may further stabilize the crystal structure. There is also a C—H⋯π inter­action.

https://journals.iucr.org/e/issues/2009/04/00/xu2501/xu2501.pdf

Diaqua­bis(2-chloro­benzoato-κO)bis­(nicotinamide-κN1)nickel(II)

Structure and magnetism of mono-, di-, and trinuclear benzoato cobalt(II) complexes

The title MnII complex, [Mn(C9H10NO2)2(C6H6N2O)(H2O)2], contains two 4-(dimethylamino)benzoate (DMAB) anions, one isonicotinamide (INA) ligand and two coordinated water mol­ecules. One of the DMAB anions acts as a bidentate ligand, while the other is monodentate. The four O atoms in the equatorial plane around the Mn atom form a highly distorted square-planar arrangement, while the distorted octa­hedral coordination geometry is completed by the N atom of the INA ligand and the O atom of the second water mol­ecule in the axial positions. In the crystal structure, strong inter­molecular O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds link the mol­ecules into a two-dimensional network parallel to (010). Two weak C—H⋯π inter­actions are also found.

https://journals.iucr.org/e/issues/2009/09/00/dn2464/dn2464.pdf

Diaqua-bis[4-(dimethyl-amino)benzoato-κO](isonicotinamide-κN)manganese(II).

Structural and magnetic properties of cobalt(II) complexes with pyridinecarboxamide ligands

In the title ZnII complex, [Zn(C8H8NO2)2(C6H6N2O)2]·H2O, the Zn atom is coordinated by two 4-methyl­amino­benzoate (MAB) and two isonicotinamide (INA) ligands in a distorted trigonal-bipyramidal geometry; one of the MAB ions acts as a bidentate ligand while the other MAB and the two INA are monodentate ligands. The dihedral angles between the carboxyl groups and the adjacent benzene rings are 8.52 (22) and 5.10 (14)°. In the crystal, inter­molecular O—H⋯O and N—H⋯O hydrogen bonding links the mol­ecules into a supra­molecular structure. Weak inter­molecular C—H⋯O inter­actions are also present.

https://journals.iucr.org/e/issues/2009/11/00/xu2632/xu2632.pdf

Bis(isonicotinamide-κN1)bis­[4-(methyl­amino)benzoato]zinc(II) monohydrate

The title CoII complex, [Co(C9H10NO2)2(C6H6N2O)(H2O)2], contains two 4-dimethyl­amino­benzoate (DMAB) anions, one isonicotinamide (INA) ligand and two coordinated water mol­ecules. One of the DMAB anions acts as a bidentate ligand, while the other is monodentate. The four O atoms in the equatorial plane around the Co atom form a highly distorted square-planar arrangement, while the distorted octa­hedral coordination geometry is completed by the N atom of the INA ligand and the O atom of the second water mol­ecule in the axial positions. An intra­molecular O—H⋯O hydrogen bond between the monodentate-coordinated carboxyl group and a coordinated water mol­ecule results in a six-membered ring with an envelope conformation. The dihedral angles between the carboxyl groups and the adjacent benzene rings are 4.29 (10)° for the monodentate ligand and 2.31 (13)° for the bidentate ligand, while the two benzene rings are oriented at a dihedral angle of 65.02 (5)°. The dihedral angles between the pyridine and benzene rings are 11.21 (5)° for the monodentate ligand and 74.60 (5)° for the bidentate ligand. In the crystal structure, inter­molecular O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds link the mol­ecules into a supra­molecular structure.

https://journals.iucr.org/e/issues/2009/06/00/xu2520/xu2520.pdf

Diaqua­bis[4-(dimethyl­amino)­benzoato]-κ2O,O′;κO-(isonicotinamide-κN1)cobalt(II)

Diaquabis[4-(dimethylamino)benzoato-kappa O](isonicotinamide-kappa N-1)manganese(II)

The mol­ecule of the title ZnII complex, [Zn(C9H10NO2)2(C6H6N2O)(H2O)2], contains two 4-(dimethyl­amino)benzoate (DMAB) ligands, one isonicotinamide (INA) ligand and two water mol­ecules; one of the DMAB ions acts as a bidentate ligand while the other and INA are monodentate ligands. The four O atoms in the equatorial plane around the Zn atom form a distorted square-planar arrangement, while the distorted octa­hedral coordination is completed by the N atom of the INA ligand and the O atom of the water mol­ecule in the axial positions. Intra­molecular C—H⋯O hydrogen bonding results in the formation of a six-membered ring adopting an envelope conformation. The dihedral angle between the carboxyl groups and the adjacent benzene rings are 4.87 (16) and 2.2 (2)°, while the two benzene rings are oriented at a dihedral angle of 65.13 (8)°. The dihedral angle between the benzene and pyridine rings are 11.47 (7) and 74.83 (8)°, respectively. In the crystal structure, inter­molecular O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds link the mol­ecules into a supra­molecular structure. π–π contacts between the pyridine and benzene rings and between the benzene rings [centroid–centroid distances = 3.695 (1) and 3.841 (1) A, respectively] further stabilize the structure. Weak inter­molecular C—H⋯π inter­actions are also present.

https://journals.iucr.org/e/issues/2009/06/00/xu2522/xu2522.pdf

Özgür Aybirdi

Papers

Bis(isonicotinamide-κN1)bis[4-(methylamino)benzoato]zinc(II) monohydrate

Diaquabis[4-(dimethylamino)benzoato]-κ2O,O′;κO-(isonicotinamide-κN1)cobalt(II)

Diaqua-bis[4-(dimethyl-amino)benzoato-κO](isonicotinamide-κN)manganese(II).

Diaquabis[4-(dimethylamino)benzoato-kappa O](isonicotinamide-kappa N-1)manganese(II)

Diaquabis[4-(dimethylamino)benzoato](isonicotinamide)zinc(II)

Özgür Aybirdi

Papers

Bis(isonicotinamide-κN1)bis­[4-(methyl­amino)benzoato]zinc(II) monohydrate

Diaqua­bis[4-(dimethyl­amino)­benzoato]-κ2O,O′;κO-(isonicotinamide-κN1)cobalt(II)

Diaqua-bis[4-(dimethyl-amino)benzoato-κO](isonicotinamide-κN)manganese(II).

Diaquabis[4-(dimethylamino)benzoato-kappa O](isonicotinamide-kappa N-1)manganese(II)

Diaqua­bis[4-(dimethyl­amino)benzoato](isonicotinamide)zinc(II)

Bis(isonicotinamide-κN1)bis[4-(methylamino)benzoato]zinc(II) monohydrate

Diaquabis[4-(dimethylamino)benzoato]-κ2O,O′;κO-(isonicotinamide-κN1)cobalt(II)

Diaquabis[4-(dimethylamino)benzoato](isonicotinamide)zinc(II)