RESUMO
In the title compound, C16H17NO2, the cyclo-hexene ring adopts a boat conformation, and the five-membered rings have envelope conformations with the bridging atom as the flap. Their mean planes are oriented at a dihedral angle of 86.51â (7)°. The mol-ecular structure is stabilized by a short intra-molecular C-Hâ¯O contact. In the crystal, mol-ecules are linked by O-Hâ¯O hydrogen bonds forming chains propagating along [100]. The chains are linked by C-Hâ¯π inter-actions, forming slabs parallel to (001).
RESUMO
In this study, the Schiff base ligand trans-N,N'-bis[(2,4-dichlorophenyl) methylidene] cyclohexane-1,2-diamine (L) and its copper(II), nickel(II) and palladium(II) transition metal complexes were prepared and characterized by the analytical and spectroscopic methods. The (1)H((13)C) NMR spectra of the ligand and its diamagnetic complexes were recorded in DMSO-d(6) solvent and obtained data confirm that the nitrogen atoms of the imine groups coordinated to the metal ions. Electrochemical properties of the ligand and its metal complexes were investigated in the DMF solvent at the 100 and 250 mVs(-1) scan rates. The ligand and metal complexes showed both reversible and irreversible processes at these scan rates. The single crystal of the ligand (L) was obtained from MeOH solution, and its crystal structure was determined by X-ray diffraction. The C-Hcdots, three dots, centeredCl hydrogen bonding interactions in the molecule were seen which increase the stability of the crystal structure. The antimicrobial activity studies of the ligand and its metal complexes were carried out by using the various bacteria and fungi.
Assuntos
Anti-Infecciosos/química , Anti-Infecciosos/farmacologia , Cicloexilaminas/química , Cicloexilaminas/farmacologia , Bases de Schiff/química , Bases de Schiff/farmacologia , Anti-Infecciosos/síntese química , Bactérias/efeitos dos fármacos , Cobre/química , Cicloexilaminas/síntese química , Eletroquímica , Fungos/efeitos dos fármacos , Ligantes , Níquel/química , Compostos Organometálicos/síntese química , Compostos Organometálicos/química , Compostos Organometálicos/farmacologia , Paládio/química , Bases de Schiff/síntese química , Análise Espectral , Difração de Raios XRESUMO
The dimeric complex, [C20H20CuN2O2]2, has been prepared and characterized by thermal analysis, IR spectroscopy and single-crystal X-ray diffraction techniques. The Cu atom in the binuclear complex exists in a distorted square-pyramidal configuration, defined by three O atoms and two N atoms. The crystal structure is stabilized by intermolecular C-H...O hydrogen bonding interaction. The electrochemical property of the complex was investigated in CH2Cl2 by cyclic voltammetry at 100 mV s(-1) scan rate.
Assuntos
Cobre/química , Cicloexilaminas/química , Diaminas/química , Espectrofotometria/métodos , Cristalização , Cristalografia por Raios X/métodos , Cicloexanos/química , Dimerização , Eletroquímica/métodos , Ligantes , Metais/química , Modelos Químicos , Conformação Molecular , Solventes/química , Temperatura , Difração de Raios XRESUMO
Crystals of the 3,3'-5,5'-tetra-tert-butyl-4,4'-diphenoquinone (TTBDQ) in the reaction mixture DCM/MeOH (1:1, v/v) were obtained as a result of CC coupling reaction of the sterically hindered phenol (2,6-di-tert-butylphenol, DTBP) using the binuclear Co(II) complexes. The oxidation product (TTBDQ), C(28)H(40)O(2), crystallizes in the space group P1 with one-half molecule in the asymmetric unit and the other half generated by an inversion centre. The diphenoquinone moiety is planar within +/-0.016(3)A. The crystal structure is stabilized by intramolecular C-H...O hydrogen bonds. The spectroscopic and electrochemical properties of the TTBDQ also have been studied.
