New organometallic single-source precursors for CuGaS2 – polytypism in gallite nanocrystals obtained by thermolysis

Oliver Kluge; Dirk Friedrich; Gerald Wagner; Harald Krautscheid

doi:10.1039/c2dt30904a

New organometallic single-source precursors for CuGaS₂ – polytypism in gallite nanocrystals obtained by thermolysis

Oliver Kluge, Dirk Friedrich, Gerald Wagner, Harald Krautscheid

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

28 Scopus citations

Abstract

The complex [(ⁱPr₃PCu)₂(Me₂Ga)₂(SCH₂CH₂S)₂](4)was synthesized from trimethylgallium, [(ⁱPr₃PCu)₄(SCH₂CH₂S)₂](1)and ethanedithiol by elimination of methane. The related monomethyl compound [(ⁱPr₃PCu)₂(MeGaSPh)₂(SCH₂CH₂S)₂](5)has been prepared from [(ⁱPr₃PCuSPh)₃](2)and [(MeGaSCH₂CH₂S)₂](3)by a ligand exchange reaction in tetrahydrofuran solution. The molecular structures of 1 and 3–5 were determined by single crystal X-ray diffraction. Thermolysis of 4 and 5 results in the formation of the ternary semiconductor CuGaS₂, gallite. The residue of 5 was characterized using X-ray powder diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The CuGaS₂ crystals obtained are mainly hexagonal plates of around 200 to 300 nm diameter and 10 to 30 nm thickness, exhibiting an unusual metastable hexagonal crystal structure, related to wurtzite. Partially, the usual tetragonal chalcopyrite structure or its disordered cubic zinc-blende analogue is realized by stacking faults, resulting in an overall similarity to the zinc-blende–wurtzite polytypism in ZnS and related compounds.

Original language	English
Pages (from-to)	8635-8642
Number of pages	8
Journal	Journal of the Chemical Society. Dalton Transactions
Volume	41
Issue number	28
DOIs	https://doi.org/10.1039/c2dt30904a
State	Published - 26 Jun 2012
Externally published	Yes

ASJC Scopus subject areas

General Chemistry

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title = "New organometallic single-source precursors for CuGaS2 – polytypism in gallite nanocrystals obtained by thermolysis",

abstract = "The complex [(iPr3PCu)2(Me2Ga)2(SCH2CH2S)2](4)was synthesized from trimethylgallium, [(iPr3PCu)4(SCH2CH2S)2](1)and ethanedithiol by elimination of methane. The related monomethyl compound [(iPr3PCu)2(MeGaSPh)2(SCH2CH2S)2](5)has been prepared from [(iPr3PCuSPh)3](2)and [(MeGaSCH2CH2S)2](3)by a ligand exchange reaction in tetrahydrofuran solution. The molecular structures of 1 and 3–5 were determined by single crystal X-ray diffraction. Thermolysis of 4 and 5 results in the formation of the ternary semiconductor CuGaS2, gallite. The residue of 5 was characterized using X-ray powder diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The CuGaS2 crystals obtained are mainly hexagonal plates of around 200 to 300 nm diameter and 10 to 30 nm thickness, exhibiting an unusual metastable hexagonal crystal structure, related to wurtzite. Partially, the usual tetragonal chalcopyrite structure or its disordered cubic zinc-blende analogue is realized by stacking faults, resulting in an overall similarity to the zinc-blende–wurtzite polytypism in ZnS and related compounds.",

author = "Oliver Kluge and Dirk Friedrich and Gerald Wagner and Harald Krautscheid",

year = "2012",

month = jun,

day = "26",

doi = "10.1039/c2dt30904a",

language = "English",

volume = "41",

pages = "8635--8642",

journal = "Journal of the Chemical Society. Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

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T1 - New organometallic single-source precursors for CuGaS2 – polytypism in gallite nanocrystals obtained by thermolysis

AU - Kluge, Oliver

AU - Friedrich, Dirk

AU - Wagner, Gerald

AU - Krautscheid, Harald

PY - 2012/6/26

Y1 - 2012/6/26

N2 - The complex [(iPr3PCu)2(Me2Ga)2(SCH2CH2S)2](4)was synthesized from trimethylgallium, [(iPr3PCu)4(SCH2CH2S)2](1)and ethanedithiol by elimination of methane. The related monomethyl compound [(iPr3PCu)2(MeGaSPh)2(SCH2CH2S)2](5)has been prepared from [(iPr3PCuSPh)3](2)and [(MeGaSCH2CH2S)2](3)by a ligand exchange reaction in tetrahydrofuran solution. The molecular structures of 1 and 3–5 were determined by single crystal X-ray diffraction. Thermolysis of 4 and 5 results in the formation of the ternary semiconductor CuGaS2, gallite. The residue of 5 was characterized using X-ray powder diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The CuGaS2 crystals obtained are mainly hexagonal plates of around 200 to 300 nm diameter and 10 to 30 nm thickness, exhibiting an unusual metastable hexagonal crystal structure, related to wurtzite. Partially, the usual tetragonal chalcopyrite structure or its disordered cubic zinc-blende analogue is realized by stacking faults, resulting in an overall similarity to the zinc-blende–wurtzite polytypism in ZnS and related compounds.

AB - The complex [(iPr3PCu)2(Me2Ga)2(SCH2CH2S)2](4)was synthesized from trimethylgallium, [(iPr3PCu)4(SCH2CH2S)2](1)and ethanedithiol by elimination of methane. The related monomethyl compound [(iPr3PCu)2(MeGaSPh)2(SCH2CH2S)2](5)has been prepared from [(iPr3PCuSPh)3](2)and [(MeGaSCH2CH2S)2](3)by a ligand exchange reaction in tetrahydrofuran solution. The molecular structures of 1 and 3–5 were determined by single crystal X-ray diffraction. Thermolysis of 4 and 5 results in the formation of the ternary semiconductor CuGaS2, gallite. The residue of 5 was characterized using X-ray powder diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The CuGaS2 crystals obtained are mainly hexagonal plates of around 200 to 300 nm diameter and 10 to 30 nm thickness, exhibiting an unusual metastable hexagonal crystal structure, related to wurtzite. Partially, the usual tetragonal chalcopyrite structure or its disordered cubic zinc-blende analogue is realized by stacking faults, resulting in an overall similarity to the zinc-blende–wurtzite polytypism in ZnS and related compounds.

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ER -

New organometallic single-source precursors for CuGaS₂ – polytypism in gallite nanocrystals obtained by thermolysis

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