Halometallates Bind as Z-Type Ligands on Wurtzite CdSe Nanoplatelets

被引：1

作者：

Buhro, William E. ^{[1
]}

Ji, Chenguang ^{[1
]}

机构：

[1] Washington Univ, Inst Mat Sci & Engn, Dept Chem, St Louis, MO 63130 USA

来源：

CHEMISTRY OF MATERIALS | 2022年 / 34卷 / 19期

基金：

美国国家科学基金会;

关键词：

X-TYPE LIGATION; COLLOIDAL NANOCRYSTALS; CADMIUM; EXCHANGE; HALIDE; STOICHIOMETRY; CRYSTAL;

D O I：

10.1021/acs.chemmater.2c02293

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：

Two-phase ligand exchange of amine-ligated, wurtzite, [CdSe(n-octylamine)0.43(oleylamine)0.07] nanoplatelets with ammonium salts (NH4Cl or [NH4]2[ZnCl4]) or the Lewis acids (ZnCl2 or CdCl2) in N-methylformamide/hexane afford NMF-ligated [CdSe(NMF)0.18(n-octylamine)0.09] nanoplatelets. Subsequent ligand exchanges with the intermediate NMF-ligated nanoplatelets give halometallate-ligated CdSe nanoplatelets having CdX3- or ZnX42- ligands (X = Cl, Br, and I). Two-phase ligand exchange of [CdSe(n-octylamine)0.43(oleylamine)0.07] nanoplatelets with ammonium salts [NH4][CdX3] in N,N-dimethylformamide afford halometallate ligation directly. Analysis of the absorption spectra and X-ray diffraction data of the halometallate-ligated nanoplatelets establish that the halometallates bind as intact, Z -type ligands.

引用

页码：8935 / 8945

页数：11