Blue luminescent silver(I) complexes constructed by 2-diphenylphosphinopyridine and dicyanamide or tricyanomethanide.

Two new blue luminescent silver(I) complexes have been successfully synthesized from mixed-ligand of 2-diphenylphosphinopyridine and N(CN) 2 − or C(CN) 3 −. Both complexes exhibit strong blue emission with phosphorescent quantum yields of 13.4% and 39.2% in solid state. • Two stable silver(I) complexes were synthesized through a mixed-ligand strategy. • They display 0D or 1D structures depending on the geometry of bridging ligand. • They exhibit strong blue emission with high phosphorescent quantum yields. Two new silver(I) complexes 2-diphenylphosphinopyridine (dppy), {Ag 2 (dppy) 2 [N(CN) 2 } 2 μ -N(CN) 2 2 (1) and {Ag 2 (dppy) 2 μ -C(CN) 3 2 } n (2) linked by dicyanamide (N(CN) 2 −) or tricyanomethanide (C(CN) 3 −) were synthesized and characterized by X-ray crystallography. Complex 1 forms a tetranuclear structure with two binucleate moieties [Ag 2 (dppy) 2 + linked by two dicyanamide ligands. Interestingly, when bridging ligand is changed to tricyanomethanide, complex 2 displays one-dimensional infinite chain structure. Both complexes exhibit strong blue emission with phosphorescent quantum yields of 13.4% for 1 and 39.2% for 2 in solid state. [ABSTRACT FROM AUTHOR]