title: Two new heterodinuclear Schiff base complexes: synthesis, crystal structure and thermal studies.
abstract: Two new heterodinuclear Schiff base complexes, [Hg(L)NiCl2(DMF)2] 1, and [Zn(L)NiCl2(DMF)2] 2, where H2L = N,N'-bis(salicylidene)-1,3-diaminopropane and DMF = dimethylformamide have been synthesized and characterized using elemental analysis, IR spectroscopy, thermal analysis and X-ray diffraction. Structural studies on 1 and 2 reveal the presence of a heterodinuclear [Ni(II)Hg(II)] unit and [Zn(II)Ni(II)] in which the central metal ions are connected to each other by two phenolate oxygen bridges. For complex 1 the Ni(II) ion adopts an elongated octahedral geometry (NiN2O4) while the Hg(II) ion assumes a distorted tetrahedral arrangement (HgO2Cl2) whereas for complex 2 the Zn(II) ion adopts an elongated octahedral geometry (ZnN2O4) while the Ni(II) ion assumes a distorted tetrahedral arrangement (NiO2Cl2). There are intermolecular C-H···Cl-M interactions among the dinuclear complexes which are interconnected for 1 and 2. These intermolecular interactions result in the formation of a three dimensional structure for 1 and one dimensional zig-zag chains for 2.
authors.affiliation: Balikesir University, Dursunbey Vocational School, Department of Property Protection and Safety, TR-10800 Balikesir, Turkey. Electronic address: alpyardan@hotmail.com.
authors.forename: Alper
authors.initials: A
authors.lastname: Yardan
authors.affiliation: Balikesir University, Faculty of Art and Science, Department of Chemistry, TR-10145 Balikesir, Turkey.
authors.forename: Cigdem
authors.initials: C
authors.lastname: Hopa
authors.affiliation: Balikesir University, Faculty of Art and Science, Department of Physics, TR-10145 Balikesir, Turkey.
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Yahsi
authors.affiliation: Suleyman Demirel University, Sutculer Prof. Dr. Hasan Gurbuz Vocational School, Department of Property Protection and Safety, TR-32950 Isparta, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Karahan
authors.affiliation: Balikesir University, Faculty of Art and Science, Department of Physics, TR-10145 Balikesir, Turkey.
authors.forename: Hulya
authors.initials: H
authors.lastname: Kara
authors.affiliation: Materials Science and Engineering, Alanya Engineering Faculty, Akdeniz University, TR-07400 Alanya, Antalya, Turkey.
authors.forename: Raif
authors.initials: R
authors.lastname: Kurtaran
mesh_terms: D060326:Chemistry Techniques, Synthetic; D018360:Crystallography, X-Ray; D003959:Diamines / Q000138:chemical synthesis / Q000737:chemistry*; D008628:Mercury; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
chemical_list: D003959:Diamines; C519577:N,N'-bis(salicylidene)-1.2-propanediamine; D009942:Organometallic Compounds; D012545:Schiff Bases; D009532:Nickel; C009475:trimethylenediamine; D008628:Mercury
keywords: Heterodinuclear complexes; Phenoxo bridge; Schiff bases; Single crystal X-ray; Thermal analysis