Monohelical Metal Complexes of a Bis-Bidentate Schiff Base with a Short Rigid Spacer. The Spontaneous Resolution of P-[Ni(FTs)]·CH3CNDedicated to Professor Joachim Strähle in the Occasion of his 65th Birthday
                                
                                    
                                        作者:Miguel Vázquez、Manuel R. Bermejo、Matilde Fondo、Ana M. García-Deibe、Ana M. González、Rosa Pedrido、Jesús Sanmartín                                    
                                    
                                        DOI:10.1002/1521-3749(200206)628:5<1068::aid-zaac1068>3.0.co;2-6
                                    
                                    
                                        日期:2002.6
                                    
                                    The electrochemical reaction of the bis-bidentate Schiff base H2FTs [N,N'-bis(2-tosylaminobenzylidene)-1,2-diaminobenzene] with cobalt, nickel, copper, zinc and cadmium, lead to the isolation of neutral [M(FTs)] complexes. All of them were characterized by elemental analyses, mass spectrometry, IR and H-1 NMR spectroscopy and magnetic measurements, where appropriate. Recrystallization of the nickel complex yields single crystals of [Ni(FTs)].wCH(3)CN (1). The x-ray characterization shows a distorted square-planar environment for the nickel atom, with the Schiff base acting as a tetradentate N-4 donor. Complex 1 can be described as a mononuclear single-stranded helical compound, with spontaneous resolution of the P enantiomer upon crystallisation.