Syntheses, Structure and Properties of Barium(II) Complex with 2,3-Pyrazinedicarboxylic Acid

Complex [Ba(pdc)(H2O)] (1), (H(2)pdc: 2,3-pyrazinedicarboxylic acid) has been synthesized and characterized by single crystal X-ray diffraction studies and FT-IR. Structural determination reveals that there is only a crystallographically independent barium(II) center. The coordination geometry of Ba1 is a distorted bicapped tetragonal antiprism. The two carboxylate groups of pdc(2-) adopt mu (3)-eta (2): eta (2) and mu (4)-eta (2): eta (2) coordination modes, respectively. Whole pdc(2-) acts as a mu (6)-bridge to link barium(II) centers to generate 2D network. Thermal stability and luminescent properties of complex 1 are investigated. A alkaline earth complex [Ba(pdc)(H2O)] (1) has been synthesized and characterized by single crystal X-ray diffraction studies, elemental analysis and FT-IR. Thermal stability and luminescent property of 1 are investigated.