Mechanistic Study of the Synthesis of CdSe Nanocrystals: Release of Selenium

被引：52

作者：

Garcia-Rodriguez, Raul ^{[1
]}

Liu, Haitao ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 03期

基金：

美国国家科学基金会;

关键词：

LIGHT-EMITTING-DIODES; BASIS-SETS; CARBOXYLIC-ACIDS; GROWTH-KINETICS; REAGENTS; MONODISPERSE; NUCLEATION; THERMOCHEMISTRY; ESTERIFICATION; INSIGHTS;

D O I：

10.1021/ja209246z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We outline a reaction pathway for the cleavage of the P=Se bond in trialkylphosphine selenide during the synthesis of CdSe nanocrystals. The reaction between cadmium carboxylate and trimethylphosphine selenide in the presence of an alcohol produces alkoxytrimethylphosphonium (2). Control experiments and density functional theory calculations suggested that the cleavage of the P=Se bond is initiated by nucleophilic attack of carboxylate on a Cd2+-activated phosphine selenide to produce an acyloxytrialkylphosphonium intermediate (1), which is converted to 2 in the presence of an alcohol.

引用

页码：1400 / 1403

页数：4

共 50 条

[1] Study on Growth Kinetics of CdSe Nanocrystals with a New Model [J].

Su, Huaipeng ;

Dixon, John David ;

Wang, Andrew Y. ;

Low, Jeremy ;

Xu, Jian ;

Wang, Jingkang .

NANOSCALE RESEARCH LETTERS, 2010, 5 (05) :823-828

[2] One-pot synthesis of CdSe magic-sized nanocrystals using selenium dioxide as the selenium source compound [J].

Liu, Xinmei ;

Jiang, Yang ;

Guo, Weimin ;

Lan, Xinzheng ;

Fu, Fengming ;

Huang, Wenyi ;

Li, Lijun .

CHEMICAL ENGINEERING JOURNAL, 2013, 230 :466-474

[3] Synthesis and characterisation of CdSe nanocrystals using NaHSeO3 as selenium source [J].

Xu, Xianmei ;

Wang, Yilin ;

Zhou, Liya ;

Wu, Liangliang ;

Guo, Jinzhi ;

Niu, Qun ;

Zhang, Lifang ;

Liu, Qingfeng .

MICRO & NANO LETTERS, 2012, 7 (06) :589-591

[4] A novel synthesis of CdSe nanocrystals [J].

Epifani, M ;

Giannini, C ;

Manna, L .

MATERIALS LETTERS, 2004, 58 (19) :2429-2432

[5] Microreactor with integrated temperature control for the synthesis of CdSe nanocrystals [J].

Gomez-de Pedro, Sara ;

Martinez-Cisneros, Cynthia S. ;

Puyol, Mar ;

Alonso-Chamarro, Julian .

LAB ON A CHIP, 2012, 12 (11) :1979-1986

[6] Synthesis of bright CdSe nanocrystals by optimization of low-temperature reaction parameters [J].

Siy, Jacqueline T. ;

Brauser, Eric H. ;

Thompson, Taylor K. ;

Bartl, Michael H. .

JOURNAL OF MATERIALS CHEMISTRY C, 2014, 2 (04) :675-682

[7] Selenium reduction pathways in the colloidal synthesis of CdSe nanoplatelets [J].

Di Giacomo, Alessio ;

Myslovska, Alina ;

De Roo, Vic ;

Goeman, Jan ;

Martins, Jose C. ;

Moreels, Iwan .

NANOSCALE, 2024, 16 (12) :6268-6277

[8] Influence of Chloride Ions on the Synthesis of Colloidal Branched CdSe/CdS Nanocrystals by Seeded Growth [J].

Kim, Mee Rahn ;

Miszta, Karol ;

Povia, Mauro ;

Brescia, Rosaria ;

Christodoulou, Sotirios ;

Prato, Mirko ;

Marras, Sergio ;

Manna, Liberato .

ACS NANO, 2012, 6 (12) :11088-11096

[9] Effects of different fatty acid ligands on the synthesis of CdSe nanocrystals [J].

Wang, Lan ;

Liu, Wenjing ;

Lu, Yan ;

Yu, Xin ;

Song, Xiaodan .

JOURNAL OF MATERIALS SCIENCE, 2016, 51 (12) :6035-6040

[10] Study on Growth Kinetics of CdSe Nanocrystals with a New Model [J].

Huaipeng Su ;

John David Dixon ;

Andrew Y Wang ;

Jeremy Low ;

Jian Xu ;

Jingkang Wang .

Nanoscale Research Letters, 5

← 1 2 3 4 5 →