Preparations and reactions of tris(dialkylamino)bismuthine

Ando, Fumiaki; Hayashi, Taeko; Ohashi, Kumao; Koketsu, Jugo

doi:10.1016/0022-1902(75)80943-2

Cited by 44 publications

(23 citation statements)

References 9 publications

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“…(Et 2 Bi) 2 Te, [35] Te(SiEt 3 ) 2 , [36] Et 4 Bi 2 , [37] Et 2 Te 2 , [38] Bi(NMe 2 ) 3 , [39] Bi(NEt 2 ) 3 and Bi(NEtMe) 3 [40] were synthesized according to literature methods. All synthetic steps were performed under argon atmosphere using standard Schlenk techniques.…”

Section: Experimental Synthetic Procedures Materials and Methodsmentioning

confidence: 99%

Wet-chemical synthesis of different bismuth telluride nanoparticles using metal organic precursors – single source vs. dual source approach

et al. 2015

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Thermolysis of the single source precursor (Et2Bi)2Te in DIPB at 80 °C yielded phase-pure Bi4Te3 nanoparticles, while mixtures of Bi4Te3 and elemental Bi were formed at higher temperatures. In contrast, cubic Bi2Te particles were obtained by thermal decomposition of Et2BiTeEt in DIPB. Moreover, a dual source approach (hot injection method) using the reaction of Te(SiEt3)2 and Bi(NMe2)3 was applied for the synthesis of different pure Bi-Te phases including Bi2Te, Bi4Te3 and Bi2Te3, which were characterized by PXRD, REM, TEM and EDX. The influence of reaction temperature, precursor molar ratio and thermolysis conditions on the resulting material phase was verified. Moreover, reactions of alternate bismuth precursors such as Bi(NEt2)3, Bi(NMeEt)3 and BiCl3 with Te(SiEt3)2 were investigated.

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Section: Experimental Synthetic Procedures Materials and Methodsmentioning

confidence: 99%

Wet-chemical synthesis of different bismuth telluride nanoparticles using metal organic precursors – single source vs. dual source approach

et al. 2015

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“…They are valuable and easily accessible precursors for atomic layer deposition, for nanoparticle synthesis, and for the preparation of clusters or bismuth compounds featuring more complex ligand scaffolds . Furthermore, their reactivity towards substrates such as CH acidic compounds, silanes, heterocumulenes, alkenes, alkynes, aldehydes, and ketones has been studied.…”

Section: Introductionmentioning

confidence: 99%

Cationic Bismuth Amides: Accessibility, Structure, and Reactivity

Dengel

Lichtenberg

2016

Chemistry A European J

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The synthetic access to cationic bismuth compounds based on simple, monodentate, synthetically useful amido ligands, [Bi(NR ) (L) ] , has been investigated (R=Me, iPr, Ph; L=neutral ligand). With [BPh ] as a counteranion, the formation of contact ion pairs and subsequent phenyl transfer from B to Bi is observed. An intermediate of this reaction, [Bi(NMe ) (HNMe )(BPh )] (1), could be isolated and fully characterized. The use of a fluorinated tetraarylborate as a counteranion leads to more stable cationic bismuth amides. The solvent-separated ion pairs [Bi (μ -NMe ) (NMe ) (thf) ] (4) and [Bi(NiPr ) (thf) ] (5) were fully characterized, with [B(3,5-C H (CF ) ) ] anions balancing the positive charge. The coordination chemistry, aggregation in solution, and spectroscopic features of these compounds were investigated. Compounds 4 and 5 show an increased reactivity towards diisopropylcarbodiimide compared to their neutral parent compounds. These reactions result in formation of the first cationic bismuth guanidinates. Characterization techniques include H, B, C, N, F, and P (VT)NMR and IR spectroscopy, single crystal X-ray diffraction analysis, and DFT calculations.

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“…NMR yields given.The homoleptic bismuth amide 1a can in principle undergo single, double, or triple insertion of CO2 and we envisioned the formation of complex mixtures. Instead, exposure of a yellow solution of 1a to CO2 instantly yielded the colourless tricarbamate 1b (identified by comparison to known spectroscopic data)38 , irrespective of the amount of CO2 supplied (Scheme 1a). For example, even when a 3:1 stoichiometry of 1a:CO2 was used, only unreacted 1a and tricarbamate 1b were observed by 1 H NMR spectroscopy, suggesting that the rate of the reaction increases as each NMe2 group is replaced by O2CNMe2, resulting in the accumulation of the homoleptic derivative 1b.…”

mentioning

confidence: 99%