The Co(II) complex of [Co(bpy) 2 (NO 3 )]Cl¢3H 2 O, bpy = 2,2'-bipyridine, has been synthesised by the solution crystallisation method. The boron nitride nanosheets/silver nanoparticles/[Co(bpy) 2 (NO 3 )] Cl¢3H 2 O nanoaggregate was prepared in order to better analyse the adsorption orientation of the cobalt complex on the surface of silver nanoparticles. The result of the surface-enhanced Raman scattering measurement indicates that the molecular plane of the cobalt complex presents a tilted orientation with respect to the surface of silver nanoparticles. The luminescence property of [Co(bpy) 2 (NO 3 )] + two-dimensional arrangements within the layers of zirconium phosphate (ZrP) was also investigated. Steady-state luminescence spectra of the [Co(bpy) 2 (NO 3 )] + -exchanged ZrP materials show an increase in the luminescence intensity.
Co(2,2'-bipyridine) 2 (dicyanamide) 2 , Co(bpy) 2 (N(CN) 2 ) 2 , was synthesised by solution crystallisation method. The 'external' lattice modes of Co(bpy) 2 (N(CN) 2 ) 2 crystal have been determined by use of the method of nuclear site group analysis. Based on the surface enhanced Raman scattering (SERS) activity of silver nanoparticles (Ag-NPs), a SiO 2 /Ag-NPs/Co(bpy) 2 (N(CN) 2 ) 2 aggregate was prepared in order to better analyse the adsorption orientation of the cobalt complex on the surface of Ag-NPs. The result of the SERS measurement indicates that the molecular plane presents a tilted orientation with respect to the Ag-NPs surface. The system described here could serve as the basis for a study of accurate and available SERS sensor. The pyrolysis products at 553 and 593 K, respectively, in air have been investigated. The results showed that nitrogen-doped carbon dots were obtained from the pyrolysis products of Co(bpy) 2 (N(CN) 2 ) 2 calcined at 553 K. This process can be exploited as a simple and effective path for the synthesis of nitrogen-doped carbon dots by using nitrogen-containing metal organic complex as precursors.
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