【摘要】 <正> 有机硼化合物是元素有机化合物的一个重要类别,早在1940年 Kruger 就提出在蛋白质中引入一定浓度的硼来作为医学上的一种疗法。六十年代以来化学家们合成了许多含硼的更多还原

【Abstract】 The crystal and molecular structures of bis（P-methoxyphenyl）-2-methyl-8-’hydroxyquinoline borolactone（1）and bis （p-methoxyphenyl）-8-hydroxyquinoline borolactone（2）have been determined by X-ray diffraction method.X-ray diffraction data were collected ona CAD4 single crystal diffractometer.The crystallographic data are as follows:（1）C₂₄H₂₂-BNO₃,orthorhombic,space group Pbca,a=1.1741（5）,b=1.6104（3）,c=2.1066（5）nm,Z=8,V=3.9829nm³ R=0.043.（2）C₂₃H₂₀BNO₃,monoclinic,space group P2₁/a,a=1.0008（1）,b=1.3956（2）,c=1.3617（3）nm,β=100.15（1）°,Z=4,V=1.8721nm³,R=0.089.The structures of the two compounds were solved by direct method.The atoms of B,C（39）,C（37）,¹N and 0（3）form a chelate ring with coordinated bond between B and N atoms.Di-hedral angle between two benzenes is 57.8° for 1 and 95.7° for 2.The bond order and charge density from quantum chemistry calculation indicate the co-valence nature of the bonds involving B atom.更多还原