Synthesis of NiS and MnS nanocrystals from the molecular precursors (TMEDA)M(SC{O}C6H5)2 (M = Ni, Mn)

Lu Tian; Lee Yong Yep; Tien Teng Ong; Jiabao Yi; Jun Ding; Jagadese J. Vittal

doi:10.1021/cg800536w

Synthesis of NiS and MnS nanocrystals from the molecular precursors (TMEDA)M(SC{O}C₆H₅)₂ (M = Ni, Mn)

Lu Tian
, Lee Yong Yep
, Tien Teng Ong
, Jiabao Yi
, Jun Ding
, Jagadese J. Vittal^*

^*Corresponding author for this work

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

57 Scopus citations

Abstract

The compounds (TMEDA)M(SC{O}C₆H₅)₂ (M = Ni, 1; Mn, 2) have been synthesized and characterized by X-ray crystallography. Both of the monomeric molecular precursors have been used to make the corresponding monodispersed NiS (two different phases) and cubic phase MnS nanocrystals (NCs) under specific experimental conditions. Changing the surfactants yielded low-temperature rhombohedral β-NiS NCs with millerite structure in dodecanethiol and high-temperature hexagonal α-NiS NCs with NiAs-type structure in oleic acid, while monodispersed hexagonal shaped α-MnS NCs with rock-salt structure were obtained in the presence of a combination of oleylamine and dodecanethiol surfactants. The NCs have been characterized by X-ray powder diffraction patterns, transmission electron microscopy, selected area electron diffraction patterns, and energy-dispersive X-ray analysis. Preliminary magnetic measurements show that the two phases of NiS NCs exhibit weak magnetism and hysteresis.

Original language	English
Pages (from-to)	352-357
Number of pages	6
Journal	Crystal Growth and Design
Volume	9
Issue number	1
DOIs	https://doi.org/10.1021/cg800536w
State	Published - Jan 2009
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1021/cg800536w

Cite this

@article{63f5ffe5b2be40a99ba48eb71f8d4f57,

title = "Synthesis of NiS and MnS nanocrystals from the molecular precursors (TMEDA)M(SC\{O\}C6H5)2 (M = Ni, Mn)",

abstract = "The compounds (TMEDA)M(SC\{O\}C6H5)2 (M = Ni, 1; Mn, 2) have been synthesized and characterized by X-ray crystallography. Both of the monomeric molecular precursors have been used to make the corresponding monodispersed NiS (two different phases) and cubic phase MnS nanocrystals (NCs) under specific experimental conditions. Changing the surfactants yielded low-temperature rhombohedral β-NiS NCs with millerite structure in dodecanethiol and high-temperature hexagonal α-NiS NCs with NiAs-type structure in oleic acid, while monodispersed hexagonal shaped α-MnS NCs with rock-salt structure were obtained in the presence of a combination of oleylamine and dodecanethiol surfactants. The NCs have been characterized by X-ray powder diffraction patterns, transmission electron microscopy, selected area electron diffraction patterns, and energy-dispersive X-ray analysis. Preliminary magnetic measurements show that the two phases of NiS NCs exhibit weak magnetism and hysteresis.",

author = "Lu Tian and Yep, \{Lee Yong\} and Ong, \{Tien Teng\} and Jiabao Yi and Jun Ding and Vittal, \{Jagadese J.\}",

year = "2009",

month = jan,

doi = "10.1021/cg800536w",

language = "English",

volume = "9",

pages = "352--357",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

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T1 - Synthesis of NiS and MnS nanocrystals from the molecular precursors (TMEDA)M(SC{O}C6H5)2 (M = Ni, Mn)

AU - Tian, Lu

AU - Yep, Lee Yong

AU - Ong, Tien Teng

AU - Yi, Jiabao

AU - Ding, Jun

AU - Vittal, Jagadese J.

PY - 2009/1

Y1 - 2009/1

N2 - The compounds (TMEDA)M(SC{O}C6H5)2 (M = Ni, 1; Mn, 2) have been synthesized and characterized by X-ray crystallography. Both of the monomeric molecular precursors have been used to make the corresponding monodispersed NiS (two different phases) and cubic phase MnS nanocrystals (NCs) under specific experimental conditions. Changing the surfactants yielded low-temperature rhombohedral β-NiS NCs with millerite structure in dodecanethiol and high-temperature hexagonal α-NiS NCs with NiAs-type structure in oleic acid, while monodispersed hexagonal shaped α-MnS NCs with rock-salt structure were obtained in the presence of a combination of oleylamine and dodecanethiol surfactants. The NCs have been characterized by X-ray powder diffraction patterns, transmission electron microscopy, selected area electron diffraction patterns, and energy-dispersive X-ray analysis. Preliminary magnetic measurements show that the two phases of NiS NCs exhibit weak magnetism and hysteresis.

AB - The compounds (TMEDA)M(SC{O}C6H5)2 (M = Ni, 1; Mn, 2) have been synthesized and characterized by X-ray crystallography. Both of the monomeric molecular precursors have been used to make the corresponding monodispersed NiS (two different phases) and cubic phase MnS nanocrystals (NCs) under specific experimental conditions. Changing the surfactants yielded low-temperature rhombohedral β-NiS NCs with millerite structure in dodecanethiol and high-temperature hexagonal α-NiS NCs with NiAs-type structure in oleic acid, while monodispersed hexagonal shaped α-MnS NCs with rock-salt structure were obtained in the presence of a combination of oleylamine and dodecanethiol surfactants. The NCs have been characterized by X-ray powder diffraction patterns, transmission electron microscopy, selected area electron diffraction patterns, and energy-dispersive X-ray analysis. Preliminary magnetic measurements show that the two phases of NiS NCs exhibit weak magnetism and hysteresis.

UR - https://www.scopus.com/pages/publications/61649102270

U2 - 10.1021/cg800536w

DO - 10.1021/cg800536w

M3 - Article

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SN - 1528-7483

VL - 9

SP - 352

EP - 357

JO - Crystal Growth and Design

JF - Crystal Growth and Design

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