高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (2): 185.

• 研究快报 • 上一篇    下一篇

磷脂酰胆碱LB单分子膜诱导下KDP晶体取向生长的研究

李斌1,2, 张希1, 白玉白1, 徐如人1   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 东北师范大学化学系, 长春 130024
  • 收稿日期:1999-09-10 出版日期:2000-02-24 发布日期:2000-02-24
  • 通讯作者: 徐如人(1932年出生),男,教授,中国科学院院士,从事无机合成与制备化学研究.
  • 基金资助:

    教育部无机合成与制备化学研究开放实验室基金资助

Studies on Oriented Growth of KH2PO4Crystals Under Phospholipid Monolayer

LI Bin1,2, ZHANG Xi1, BAI Yu-Bai1, XU Ru-Ren1   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Department of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:1999-09-10 Online:2000-02-24 Published:2000-02-24

关键词: 二棕榈酰磷脂酰胆碱, KDP, 取向生长, 非线性光学

Abstract: Using a Langmuir-Blodgett film of dipalmitoylphosphatidylcholine(DPPC), a model of biomembranes, as a template, we succeed in obtaining oriented KH2PO4(KDP) crystals toward crystal face (100) under well-compressed DPPCmonolayer. This is explicable in terms of the geometrical complementarity between KDPand the DPPCmonolayer. It is found that the distances between the closest K-K (0.416 nm) fit the d(100) network spacing of DPPCmonolayer(0.420 nm), which results in that the special activation energy for nucleation exists in the interface covered with DPPCmonolayer. DPPCmonolayer has a very strong selected catalysis on the crystallization of KDPcrystal face (100), and drives KDPrapid and oriented nucleation on the monolayer/solution interface. The oriented KDPcrystals show a good second harmonic generation(SHG) signal.

Key words: Dipalmitoylphosphatidylcholine, KDP, Oriented growth, Second harmonic generation

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