Towards the photodeposition of SixGey-type materials via oligomers of cyclogermapentenes and cyclosilapentenes

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2025-01-09 DOI:10.1039/d4dt03446e

William Medroa del Pino, Andres Alejandro Forero Pico, Abhishek V Muralidharan, Manisha Gupta, Eric Rivard

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引用次数: 0

Abstract

This article provides an alternative pathway towards cyclosilapentenes (e.g., SiH₂-ⁱPr and SpiroSi) involving the use of Rieke magnesium to activate the requisite dienes for synthesis. Subsequent metal-mediated dehydrocoupling of this cyclosilapentene and mixtures with another cyclogermapentene gives oligomers with backbone Si-Si (number average molecular weight, M_n = 1.0 kDa) and Si-Ge (M_n = 1.4 kDa) linkages, respectively. UV-irradiation (248 nm) of the abovementioned oligotetrelenes and the molecular spirosilane SpiroSi were examined in solution; while evidence for Si_xGe_y-type materials was noted through Raman and EDX spectroscopy, the presence of substantial amorphous carbon as a contaminant was also observed. (TD)-DFT computations studies on the spirosilane SpiroSi provide some insight into the lack of efficient Si_xGe_y photodeposition noted in this study.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.