物理化学学报 >> 1994, Vol. 10 >> Issue (08): 686-691.doi: 10.3866/PKU.WHXB19940804

研究论文 上一篇    下一篇

硼酸与多羟基化合物配位反应的热化学研究

屈景年, 汪存信, 刘训亭, 屈松生   

  1. 武汉大学化学系,武汉 430072
  • 收稿日期:1993-04-24 修回日期:1993-06-26 发布日期:1994-08-15
  • 通讯作者: 汪存信

Thermochemistry Studies of the Coordination Reaction of Boric Acid with Polyhydroxy Compounds

Qu Jing-Nian, Wang Cun-Xin, Liu Xun-Ting, Qu Song-Sheng   

  1. Chemistry Department, Wuhan University, Wuhan 430072
  • Received:1993-04-24 Revised:1993-06-26 Published:1994-08-15
  • Contact: Wang Cun-Xin

摘要:

用量热法在298.2 K测定了B(OH)~-_4与多羟基化合物的反应焓。计算了硼酸与多羟基化合物的配位焓和配离子的标准生成焓。根据配位焓确定了B(OH)~-_4与甘露醇、山梨醇、丙三醇、葡萄糖等多羟基化合物配位反应的配位数,B(OH)~-_4与甘露醇、山梨醇的配位数是2;与丙三醇、葡萄糖的配位数是1.

关键词: 配位反应热化学, 硼酸, 多羟基化合物

Abstract:

The values of reaction enthalpy of B(OH)~-_4 with polyhydroxy comPounds were deterthened by using calorimeter at 298.2 K. The coordination enthalpy of boric acid with polydydroxy compounds and the standard enthalpy of formation of the coordination ions were calculated. The coordination numbers of the coordination reactions of B(OH)~-_4 with mannitol, d-sorbitol, glycerol and a-dglucose were determined by the values of coordination enthalpy. For maunitol and d-sorbitol, the number of coordination with B(OH)~-_4 is 2; for the glycerol and α-d-glucose, it is 1.

Key words: Thermochemistry of coordination reaction, Boric acid, Polyhydroxy compound