Acta Chimica Sinica ›› 1999, Vol. 57 ›› Issue (3): 236-243. Previous Articles     Next Articles

Original Articles

2-羰基丙酸(4-吡啶甲酰基)腙与碱土金属配合物的晶体结构及热 稳定性

杨正银;杨汝栋;郁开北   

  1. 兰州大学化学系.兰州(730000)
  • 出版日期:1999-03-15 发布日期:1999-03-15

The crystal structures and thermal stability of the complexes of 2- oxo-propionic acid (4-pyridinecarbonyl) hydrazone with alkaline earth metals

Yang Zhengyin;Yang Rudong;Yu Kaibei   

  1. Lanzhou Univ, Dept Chem.Lanzhou(730000)
  • Online:1999-03-15 Published:1999-03-15

The Syntheses, structures and properties of the complexes of 2-oxo- propionic acid (4-pyridinecarbonyl)-hydrazone with alkaline earth metals are reported in this paper. The crystal structures of Mg and Ba complex were determined by x-ray single crystal diffraction analysis, the results show that two complexes are monoclinic of space group P2~1/c; the cell parameters are as follows: MgL.4H~2O, a=1.053, b=1.1308, c=1.1948nm, β =103.24ⅲ, Z=4, Vc=1.3859nm^3, Dc=1.45g/cm^3, R=0.00379. Ba(HL)~2.9h~2O, a=1.4082, b=0.7263, c=2.7798nm, β=93.14ⅲ, Z=4, Vc=2.8389nm^3, Dc=1.67g/cm^3, R=0.0404. Besides, typical IR bands of the bonding in various forms and thermal stability are discussed in comparison with each other.

Key words: METHYLACETIC ACID P, CARBONYL COMPOUNDS, PYRIDINE P, HYDRAZONE P, CRYSTAL STRUCTURE, THERMAL STABILITY, CALCIUM COMPLEX, MAGNESIUM COMPLEX, STRONTIUM COMPLEX, BARIUM COMPLEX

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