Laser-induced morphology control and epitaxy of dipara-anthracene produced from the photochemical reaction of anthracene

被引：32

作者：

Okutsu, T ^{[1
]}

Isomura, K ^{[1
]}

Kakinuma, N ^{[1
]}

Horiuchi, H ^{[1
]}

Unno, M ^{[1
]}

Matsumoto, H ^{[1
]}

Hiratsuka, H ^{[1
]}

机构：

[1] Gunma Univ, Dept Chem, Kiryu, Gumma 3758515, Japan

来源：

CRYSTAL GROWTH & DESIGN | 2005年 / 5卷 / 02期

关键词：

D O I：

10.1021/cg049816s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Laser-induced crystal growth and morphology control were observed by irradiation of anthracene in saturated acetonitrile solution. The crystal was composed of dipara-anthracene (DPA), which is a product of intermolecular [4+4] photocycloaddition of anthracene. Polyhedral, skeletal, and dendrite morphologies were controlled by laser fluence. In a suspension system with anthracene microcrystals, laser-induced epitaxy of the photoproduct on the mother anthracene substrate was observed. The a and b axes of the (001) surface of DPA are parallel to the b and a axes of the monoclinic anthracene (001) surface. EpiCalc calculations indicated that almost perfect lattice matching exists between the (1 x 2) supercell dimension at an angle 90 degrees, which is in good agreement with the experimental results. Epitaxy was formed by 2-D nucleation of DPA, which was produced in the solution phase and was brought about by diffusion.

引用

页码：461 / 465

页数：5

共 19 条

[1] SURFACE TO BULK PHOTODIMERIZATION DIFFUSION IN THE CRYSTAL OF ANTHRACENE [J].