2D nanocrystalline ternary selenides Cu<inf>2</inf>MSe<inf>4</inf> (M = Mo/W)

Minyuan M. Li; Sergei A. Ivanov

doi:10.1039/c9dt03282g

2D nanocrystalline ternary selenides Cu<inf>2</inf>MSe<inf>4</inf> (M = Mo/W)

Minyuan M. Li
, Sergei A. Ivanov

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A high-temperature metathesis reaction between CuBr and [Ph4P]2MSe4 (M = Mo or W) gave rise to nanocrystalline Cu2MSe4 with a phase-pure M = Mo compound that was obtained for the first time. After exploring the formation mechanism, we found that the sub-stoichiometric ratios of CuBr to MSe42- resulted in the formation of a linear byproduct impurity, [Ph4P]CuMSe4 (M = Mo or W). However, excess CuBr selectively steered the reaction to the desired Cu2MSe4. As a consequence of the newfound similarity in the reaction conditions for both metals, we have demonstrated the applicability of this method towards a mixed Mo/W quaternary composition.

Original language	English
Pages (from-to)	15795-15801
Number of pages	7
Journal	Dalton Transactions
Volume	48
Issue number	42
DOIs	https://doi.org/10.1039/c9dt03282g
State	Published - Jan 1 2019

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title = "2D nanocrystalline ternary selenides Cu2MSe4 (M = Mo/W)",

abstract = "A high-temperature metathesis reaction between CuBr and [Ph4P]2MSe4 (M = Mo or W) gave rise to nanocrystalline Cu2MSe4 with a phase-pure M = Mo compound that was obtained for the first time. After exploring the formation mechanism, we found that the sub-stoichiometric ratios of CuBr to MSe42- resulted in the formation of a linear byproduct impurity, [Ph4P]CuMSe4 (M = Mo or W). However, excess CuBr selectively steered the reaction to the desired Cu2MSe4. As a consequence of the newfound similarity in the reaction conditions for both metals, we have demonstrated the applicability of this method towards a mixed Mo/W quaternary composition.",

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AU - Li, Minyuan M.

AU - Ivanov, Sergei A.

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Y1 - 2019/1/1

N2 - A high-temperature metathesis reaction between CuBr and [Ph4P]2MSe4 (M = Mo or W) gave rise to nanocrystalline Cu2MSe4 with a phase-pure M = Mo compound that was obtained for the first time. After exploring the formation mechanism, we found that the sub-stoichiometric ratios of CuBr to MSe42- resulted in the formation of a linear byproduct impurity, [Ph4P]CuMSe4 (M = Mo or W). However, excess CuBr selectively steered the reaction to the desired Cu2MSe4. As a consequence of the newfound similarity in the reaction conditions for both metals, we have demonstrated the applicability of this method towards a mixed Mo/W quaternary composition.

AB - A high-temperature metathesis reaction between CuBr and [Ph4P]2MSe4 (M = Mo or W) gave rise to nanocrystalline Cu2MSe4 with a phase-pure M = Mo compound that was obtained for the first time. After exploring the formation mechanism, we found that the sub-stoichiometric ratios of CuBr to MSe42- resulted in the formation of a linear byproduct impurity, [Ph4P]CuMSe4 (M = Mo or W). However, excess CuBr selectively steered the reaction to the desired Cu2MSe4. As a consequence of the newfound similarity in the reaction conditions for both metals, we have demonstrated the applicability of this method towards a mixed Mo/W quaternary composition.

UR - https://www.scopus.com/pages/publications/85074243121

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DO - 10.1039/c9dt03282g

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VL - 48

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JO - Dalton Transactions

JF - Dalton Transactions

IS - 42

ER -

2D nanocrystalline ternary selenides Cu<inf>2</inf>MSe<inf>4</inf> (M = Mo/W)

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