Tantalum complexes with all nitrogen coordination sphere: Mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour

Arne Baunemann; Daniel Rische; Andrian Milanov; Younsoo Kim; Manuela Winter; Christian Gemel; Roland A. Fischer

doi:10.1039/b503988f

Tantalum complexes with all nitrogen coordination sphere: Mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour

Arne Baunemann, Daniel Rische, Andrian Milanov, Younsoo Kim, Manuela Winter, Christian Gemel, Roland A. Fischer

Max-Planck-lnstitut für Kohlenforschung

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

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Abstract

Novel mixed amido-/imido-/guanidinato-complexes of tantalum are reported. The complexes were synthesised by insertion reactions of carbodiimides of the type C(NR)2 (R = iso-propyl (i-Pr)) into the M-N bonds of tantalum mixed amido/imido complexes. Three representative complexes were synthesised and fully characterised by ¹H-NMR, ¹³C-NMR, CHN-analysis and mass spectroscopy. The crystal structure of the complex [Ta(NMe ₂){(i-Pr-N)₂C(NMe₂)}₂(N-NBu)] (1) (Me = methyl, t-Bu = terf-butyl) is presented and discussed. The complexes are solids that can be quantitatively sublimed at moderate temperatures (120-130°C) without any sign of decomposition. The thermal properties of the new compounds were studied (TGA) and preliminary MOCVD-experiments were performed. TaN films were deposited and characterised by XRD and XPS.

Original language	English
Pages (from-to)	3051-3055
Number of pages	5
Journal	Dalton Transactions
Issue number	18
DOIs	https://doi.org/10.1039/b503988f
State	Published - 21 Sep 2005
Externally published	Yes

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title = "Tantalum complexes with all nitrogen coordination sphere: Mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour",

abstract = "Novel mixed amido-/imido-/guanidinato-complexes of tantalum are reported. The complexes were synthesised by insertion reactions of carbodiimides of the type C(NR)2 (R = iso-propyl (i-Pr)) into the M-N bonds of tantalum mixed amido/imido complexes. Three representative complexes were synthesised and fully characterised by 1H-NMR, 13C-NMR, CHN-analysis and mass spectroscopy. The crystal structure of the complex [Ta(NMe 2){(i-Pr-N)2C(NMe2)}2(N-NBu)] (1) (Me = methyl, t-Bu = terf-butyl) is presented and discussed. The complexes are solids that can be quantitatively sublimed at moderate temperatures (120-130°C) without any sign of decomposition. The thermal properties of the new compounds were studied (TGA) and preliminary MOCVD-experiments were performed. TaN films were deposited and characterised by XRD and XPS.",

author = "Arne Baunemann and Daniel Rische and Andrian Milanov and Younsoo Kim and Manuela Winter and Christian Gemel and Fischer, {Roland A.}",

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T1 - Tantalum complexes with all nitrogen coordination sphere

T2 - Mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour

AU - Baunemann, Arne

AU - Rische, Daniel

AU - Milanov, Andrian

AU - Kim, Younsoo

AU - Winter, Manuela

AU - Gemel, Christian

AU - Fischer, Roland A.

PY - 2005/9/21

Y1 - 2005/9/21

N2 - Novel mixed amido-/imido-/guanidinato-complexes of tantalum are reported. The complexes were synthesised by insertion reactions of carbodiimides of the type C(NR)2 (R = iso-propyl (i-Pr)) into the M-N bonds of tantalum mixed amido/imido complexes. Three representative complexes were synthesised and fully characterised by 1H-NMR, 13C-NMR, CHN-analysis and mass spectroscopy. The crystal structure of the complex [Ta(NMe 2){(i-Pr-N)2C(NMe2)}2(N-NBu)] (1) (Me = methyl, t-Bu = terf-butyl) is presented and discussed. The complexes are solids that can be quantitatively sublimed at moderate temperatures (120-130°C) without any sign of decomposition. The thermal properties of the new compounds were studied (TGA) and preliminary MOCVD-experiments were performed. TaN films were deposited and characterised by XRD and XPS.

AB - Novel mixed amido-/imido-/guanidinato-complexes of tantalum are reported. The complexes were synthesised by insertion reactions of carbodiimides of the type C(NR)2 (R = iso-propyl (i-Pr)) into the M-N bonds of tantalum mixed amido/imido complexes. Three representative complexes were synthesised and fully characterised by 1H-NMR, 13C-NMR, CHN-analysis and mass spectroscopy. The crystal structure of the complex [Ta(NMe 2){(i-Pr-N)2C(NMe2)}2(N-NBu)] (1) (Me = methyl, t-Bu = terf-butyl) is presented and discussed. The complexes are solids that can be quantitatively sublimed at moderate temperatures (120-130°C) without any sign of decomposition. The thermal properties of the new compounds were studied (TGA) and preliminary MOCVD-experiments were performed. TaN films were deposited and characterised by XRD and XPS.

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DO - 10.1039/b503988f

M3 - Article

C2 - 16127499

AN - SCOPUS:25144483043

SN - 1477-9226

SP - 3051

EP - 3055

JO - Dalton Transactions

JF - Dalton Transactions

IS - 18

ER -

Tantalum complexes with all nitrogen coordination sphere: Mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour

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