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The silver-dppm complex, [Ag2(dppm)2(NMP)2](SbF6)2?4H2O?3CH2Cl2 1 (NMP = 2- (4-dimethylaminophenyl)imidazo(4,5-f)(1,10)phenanthroline, dppm = diphenylphosphinomethane), was synthesized and its structure was determined by X-ray diffraction. The crystal belongs to mono- clinic, space group C2/c, Mr = 2461.61, a = 21.57(10), b = 22.48(6), c = 22.53(6) ?, β = 101.29(2)o, V = 10713(64) ?3, Z = 4, Dc = 1.526 g/cm3, μ = 1.141 mm?1, F(000) = 4920, R = 0.0664 and wR = 0.1774 for 8524 observed reflections (I > 2σ(I)). Complex 1 exists as a centrosymmetric dimmer. The two dppm molecules bridge two AgNMP moieties to form an eight-membered Ag2P4C2 metal- lacyclic ring with ligand NMP chelating to each Ag. It appears photoluminescence (λmax = 625 nm) at room temperature and makes red shift compared with free ligand NMP (λmax = 522 nm). DFT calculation indicates that the emission of 1 originates from singlet metal-perturbed ILCT excited state.
The silver-dppm complex, [Ag2 (dppm) 2 (NMP) 2] (SbF6) 2 · 4H2O · 3CH2Cl2 1 (NMP = 2- (4-dimethylaminophenyl) , dppm = diphenylphosphinomethane), was synthesized and its structure was determined by X-ray diffraction. The crystal belongs to mono-clinic, space group C2 / c, Mr = 2461.61, a = 21.57 (10), b = 22.48 (6) , C = 22.53 (6) ?,? = 101.29 (2) o, V = 10713 (64)? 3, Z = 4, Dc = 1.526 g / cm3, , R = 0.0664 and wR = 0.1774 for 8524 observed reflections (I> 2σ (I)). Complex 1 exists as a centrosymmetric dimmer. The two dppm molecules bridge two AgNMP moieties to form an eight- membered Ag2P4C2 metal-lacyclic ring with ligand It appears that photoluminescence (λmax = 625 nm) at room temperature and makes red shift compared with free ligand NMP (λmax = 522 nm). DFT calculation indicates that the emission of 1 originates from singlet metal-perturbed ILCT excited state.