摘要
本文着重叙述溶液降温法生长的大块邻苯二甲酸氢钾(KAP)单晶中关键有机基团的取向和性质对晶体生长习性的影响,并且阐述结构中分子松散堆积和缺陷形成之间的关系。
Potassium acid phthalate(KAP)is an organic compound K(C_6H_4·COOH·COO),it crystallizes in the orthorhombic system with the space groupP2ab and the unit cell parameters α_0=6.4669 b_0=9.609 and c_0=13.857(?).Largeperfect crystals have been grown by using(001)seed plates from aqueous solu-tion.It is shown that the great difference in the growth rates along the plusand minus α axes and the defect formation are closely related to the orientationof the key groups of carboxyl radicals(Ⅰ)and the open structure(mainly thestructural channels A and B),respectively.A proposal for improving thequality of crystals by changing the orientation of the polar axis a is given.
出处
《人工晶体学报》
EI
CAS
CSCD
1990年第1期78-83,共6页
Journal of Synthetic Crystals
关键词
有机晶体
邻苯二甲酸氢钾晶体
生长习性
缺陷
晶体结构
organic crystal
potassium acid phthalate(KAP)crystal
growth habit defect crystal structure
