Abstract
The infrared and electronic excitation spectra of a series of new nickel(II) chelates containing anα-diimine (or nitrogenous base, enR) and the anion of aΒ-dione (1,3-ketoenol or 1,3-ketoester,ΒH) were obtained in the solid state and in solution. The composition and the overall structure of the new chelates in the solid state depends on ligand concentration, the substituents within theΒ-dionato moiety and the counterion present. The IR and electronic excitation spectra of [Ni(enR)2Β]NO3 and [Ni(enR)Β(O2NO)] indicate, in conjunction with other physicochemical measurements, bidentate coordination of the ligands, while the spectral shifts reveal replacement of the (O,O′)nitrato group by basic solvents. The existence of the nickel(II) in an octahedral environment is confirmed by an X-ray structure analysis of [Ni(dpamH)2acac]NO3 · CH3OH (monoclinic, space groupP2l/n, a=17.296(1),b=7.462(1),c=21.604(3) a,Β=95.65(1)‡,Z=4, R=0.0534,Rw=0.0600), where dpamH denotes the 2,2′-dipyridylamine.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.