Titre du document / Document title

2-(N,N-Dimethylamino)ethylselenolates of cadmium(II) : Syntheses, structure of [Cd₃(OAc)₂(SeCH₂CH₂NMe₂)₄] and their use as single source precursors for the preparation of CdSe nanoparticles

Auteur(s) / Author(s)

KEDARNATH G. ; DEY Sandip ; JAIN Vimal K. ; DEY Gautam K. ; VARGHESE Babu ;

Résumé / Abstract

The reaction of Cd(OAC)₂·2H₂O with NaSeCH₂CH₂NMe₂ gave a homoleptic cadmium selenolate, [Cd(SeCH₂CH₂NMe₂)₂]. The latter complex, on treatment with Cd(OAc)₂·2H₂O, afforded [Cd3(OAc)2(SeCH2CH2NMe2)4], which was structurally characterized by single-crystal X-ray diffraction analysis. Pyrolysis of [Cd(SeCH₂CH₂NMe₂)₂] either in a mixture of hot hexadecylamine (HDA) and tri-n-octylphosphine oxide (TOPO) or in a furnace (180 and 200 °C) gave CdSe nanoparticles with average sizes varying between 3 and 21 nm. Both cubic and hexagonal phases of CdSe nanoparticles have been isolated under different experimental conditions. The CdSe nanoparticles were characterized by UV-Vis, photoluminescence, X-ray diffraction and electron microscopy. Time resolved luminescence measurements showed three different decay times for both band edge and trap state emissions.

Revue / Journal Title

Polyhedron    ISSN  0277-5387   CODEN PLYHDE 

Source / Source

2006, vol. 25, n^o12, pp. 2383-2391 [9 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1982) (Revue)

Mots-clés d'auteur / Author Keywords

Cadmium selenolate

;

CdSe

;

Nanoparticles

;

Crystal structure

;

TEM

;

Localisation / Location

INIST-CNRS, Cote INIST : 19315, 35400015701106.0040