| Yazarlar |
Gülçin Şefiye Aşkın
Türkiye |
Prof. Dr. Hacali NECEFOĞLU
Kafkas Üniversitesi, Türkiye |
|
Safiye Özkaya
Türkiye |
|
Raziye Çatak Çelik
Türkiye |
|
Tuncer Hökelek
Hacettepe Üniversitesi, Türkiye |
| Özet |
| The asymmetric unit of the mononuclear cobalt complex, [Co(C11H13O2)2- (C6H6N2O)2(H2O)2].2H2O, contains one half of the complex molecule, one coordinating and one non-coordinating water molecule, one 4-tert-butylbenzoate (TBB) ligand and one nicotinamide (NA) ligand; the Co atom lies on an inversion centre. All ligands coordinating to the Co atom are monodentate. The four nearest O atoms around the Co atom form a slightly distorted square-planar arrangement, with the distorted octahedral coordination completed by the two pyridine N atoms of the NA ligands at distances of 2.1638 (11) Å . The coordinating water molecules are hydrogen bonded to the carboxyl O atoms [O ⋯ O = 2.6230 (17) Å ], enclosing an S(6) hydrogenbonding motif, while intermolecular O-H⋯O hydrogen bonds link two of the non-coordinating water molecules to the coordinating water molecules and NA anions. The dihedral angle between the planar carboxylate group and the adjacent benzene ring is 29.09 (10)°, while the benzene and pyridine rings are oriented at a dihedral angle of 88.53 (4)°. In the crystal, O-H⋯O and N- H⋯O hydrogen bonds link the molecules, enclosing R22(8), R22(10) and R44(12) ring motifs, forming layers parallel to (001). The C and H atoms of the tert-butyl group of the TBB ligand are disordered over two sets of sites with an occupancy ratio of 0.631 (5):0.369 (5). |
| Anahtar Kelimeler |
| crystal structure | cobalt(II) | transition metal complexes | benzoic acid | nicotinamide |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | ESCI dergilerinde yayımlanan tam makale |
| Dergi Adı | ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS |
| Dergi ISSN | 2056-9890 |
| Dergi Tarandığı Indeksler | ESCI: Emerging Sources Citation Index |
| Makale Dili | İngilizce |
| Basım Tarihi | 07-2016 |
| Cilt No | 72 |
| Sayı | 7 |
| Sayfalar | 888 / 891 |
| Doi Numarası | 10.1107/S2056989016008689 |
| Makale Linki | http://scripts.iucr.org/cgi-bin/paper?S2056989016008689 |
