Sequential self-organization of silver(I) layered materials with strong SHG by J aggregation and intercalation of organic nonlinear optical chromophores through mechanochemical synthesis

被引：58

作者：

Cariati, Elena

Macchi, Roberto

Roberto, Dominique

Ugo, Renato

Galli, Simona

Masciocchi, Norberto

Sironi, Angelo

机构：

[1] Univ Milan, Ctr Excellence CIMAINA, Dipartimento Chim Inorgan, Dipartimento Chim Struttura Streochim Inorgan, I-20133 Milan, Italy

[2] Univ Insubria, Dipartimento Sci Chim Ambientali, I-22100 Como, Italy

来源：

CHEMISTRY OF MATERIALS | 2007年 / 19卷 / 15期

关键词：

D O I：

10.1021/cm071003e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The inorganic-organic hybrid layered material of stoichiometry [DAMS(+)][ Ag5I6 (-)], characterized by a strong SHG activity, has been prepared mechanochemically by room-temperature ball- milling a mixture of AgI and [ DAMS+][I-], eventually followed by a moderate heating. By means of electronic absorption spectra, XRPD, and second harmonic generation ( SHG) experiments we proved that the intralayer ordering of the [ DAMS+] nonlinear optical chromophores into J-aggregates precedes the interlayer one, on the whole producing, by a sequential process, the "macropolarity" responsible for the strong SHG. The mechanochemical approach was shown to be of general use, as it was successfully applied to the synthesis of the analogous [ DAMS+][Cu5I6-], [DAZOP(+)][Ag5I6-], and [DAES(+)][Ag5I6-] materials.

引用

页码：3704 / 3711

页数：8