New Ceramics Precursors Containing Si and Ge Atoms—Cubic Germasilsesquioxanes—Synthesis, Thermal Decomposition and Spectroscopic Analysis

Skoczeń, Aleksandra; Frąckowiak, Dawid; Przekop, Robert E.; Frydrych, Miłosz; Kasperkowiak, Małgorzata; Jeleń, Piotr; Sitarz, Maciej; Marciniec, Bogdan

doi:10.3390/molecules27041441

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…In this work, we synthesized mono- and diethynylphenylborasilsesquioxane by the condensation reaction. Furthermore, this is a continuation of our team’s previous work on thermally inducted chemical and structural transformations of silsesquioxanes and heterosilsesquioxanes [ 7 , 39 , 40 , 41 , 42 ].…”

Section: Introductionmentioning

confidence: 64%

New Ethynylphenylborasilsesquioxanes—Their Reactivity and Behavior during Thermal Decomposition

Frydrych,

Sztorch,

Przekop

et al. 2023

IJMS

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In this paper, a new type of borasilsesquioxanes was synthesized through a condensation process, and its reactivity in catalytic hydrosilylation reactions with silanes, siloxanes, and silsesquioxanes was investigated. The obtained compounds were mostly obtained in >90% yield. They were fully characterized using spectroscopic (1H, 13C, 29Si NMR) and spectrometric (MALDI-TOF-MS) methods. The next stage of the research involved studying the thermogravimetric properties of the borasilsesquioxanes. By analyzing the different stages of decomposition using spectroscopic techniques (NMR, ATR-FTIR, Raman) and microscopic imaging, it was found that the structure of the borasilsesquioxanes changed during the pyrolysis process and polymer compounds were formed.

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Section: Introductionmentioning

confidence: 64%

New Ethynylphenylborasilsesquioxanes—Their Reactivity and Behavior during Thermal Decomposition

Frydrych,

Sztorch,

Przekop

et al. 2023

IJMS

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“…There are several structural types of these compounds, such as linear polymers, ladders, cages, and sheet-like structures. The Ge analogs of organosilsesquioxanes [7] and germanates [8][9][10] have attracted less attention. It is evident, however, that the introduction of germanium, instead of silicon, atoms (with a larger atom size and more acute bond angles) would significantly modify the structural features of compounds and their properties.…”

Section: Introductionmentioning

confidence: 99%

Structural Motifs in Aryl Organogermanium Ge-O Derivatives for Material Design

Zaitsev,

Makarov,

Oprunenko

et al. 2023

IJMS

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The aim of this work was to understand the main structural features and ways of formation of Ge-O bonds in organogermanium compounds under the conditions of ArnGeHal4-n (Hal = halide) hydrolysis. The structural types of these compounds were considered, providing 11 blocks (A–K). The molecular structures of the novel compounds [(p-FC6H4)3Ge]2O (1), [(p-F3CC6H4)3Ge]2O (2), and cyclo-[(p-F3CC6H4)2GeO]4 (3) were studied through XRD (X-ray diffraction) analysis. The molecular structure of [(p-F3CC6H4)3GeO]4Ge (4), representing a novel structural type, was also investigated. The data presented in this study will be important in the design of materials with useful properties based on group 14 element derivatives with element–oxygen bonding.

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“…Moreover, due to their high stability and low toxicity, they can be considered very useful reagents in the synthesis of complex organic molecules 4,12 . The germanium analogues of siloxanes with Ge-O-Si fragments attract considerable attention owing to their high refractive index, low dielectric constant, and biocompatible properties [13][14][15] . This may lead to completely new materials with different properties than their silicon analogs 16 .…”

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confidence: 99%