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本工作合成了MgCl_2(CH_3COOC_2H_5)_2,并对其晶体结构进行了测定,收集到三维独立的衍射点1672个。晶体属正交晶系,空间群为P2_12_12。晶胞参数α=7.353(3),b=25.111(10),c-8.631(2)。Z=8用Patterson法解出结构,用块矩阵最小二乘程序修正。最后的R值为0.0795。结构的特征是,镁原子为八面体配位,氯原子与镁原子以双桥键相连,使镁原子形成多聚链,乙酸乙酯在多聚链双侧与Mg相配位。
In this work, MgCl_2 (CH_3COOC_2H_5) _2 was synthesized and its crystal structure was determined. There were 1672 three-dimensional independent diffraction points collected. Crystals belong to orthorhombic space group P2_12_12. The unit cell parameters α = 7.353 (3), b = 25.111 (10), c-8.631 (2). Z = 8 Patterson method to solve the structure, with the least squares matrix correction procedures. The final R value is 0.0795. The structure is characterized by the octahedral coordination of the magnesium atom, the double bond of the chlorine atom and the magnesium atom to form the poly chain of the magnesium atom, and the ethyl acetate is coordinated with Mg on both sides of the poly chain.