Optical properties of a novel neodymium pentafluoropropionate binuclear complex

Abstract

A novel neodymium pentafluoropropionate binuclear complex, Nd(C 2F 5COO) 3Dipy (Dipy: 2,2′-dipyridyl), was synthesized and characterized by single-crystal X-ray diffraction. At a concentration of 0.2 M in DMSO- d 6, the Judd–Ofelt parameters ( Ω 2, Ω 4, Ω 6) were calculated from the UV–Vis spectrum. According to the small value of Ω 2 and the zero splitting energy of 4F/ 3/2 level, a symmetric ligand field of the complex was confirmed in DMSO- d 6. Strong emission of the complex in DMSO- d 6 at 1057 nm with a decay time about 1.3 μs were detected when excited at 800 nm pumped by a laser diode. The stimulated emission cross-section of 4F 3/2 → 4I 11/2 fluorescence transition was 2.36 × 10 −20 cm 2 and comparable with some laser glasses, which indicated good radiative properties of this neodymium pentafluoropropionate binuclear complex in liquid matrix.