1. Synthesis of MeBICAAC Supported Si(III) Radicals and a Silylone via Reduction Route From MeBICAAC‐Si(IV) Precursors.
- Author
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Kumar Thakur, Sandeep, De, Sriman, Adhikari, Manu, Manar, Krishna K., Koley, Debasis, and Singh, Sanjay
- Subjects
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ENERGY levels (Quantum mechanics) , *SILICON compounds , *SINGLE crystals , *ENERGY policy , *CRYSTALLOGRAPHY - Abstract
Past one decade has witnessed a tremendous growth in the field of carbene stabilized low‐valent silicon compounds unravelling very exciting properties of these molecules. Herein, we have employed a bicyclic (alkyl)(amino)carbene, (MeBICAAC) to explore the low‐valent chemistry of silicon. The reduction of bicyclic (alkyl)(amino)carbene‐SiCl4 complex, [(MeBICAAC)SiCl4] (1) with KC8 afforded low‐valent Si complexes, including Si(III) radical [(MeBICAAC)SiCl3] (2) and a complex with silicon center in a formal zero‐valent state, [(MeBICAAC)2Si] (3). Similarly, the reduction of in‐situ generated MeBICAAC adduct of Me2SiCl2 with one equivalent of KC8 led to the formation of [(MeBICAAC)SiMe2Cl] (4) complex having an unpaired electron. These complexes have been characterized by IR, UV‐Vis. NMR, HRMS, EPR and their solid‐state structures were also elucidated by single crystal X‐ray crystallography. Further, DFT calculations revealed the lower energy singlet state for complexes 1, 3 and doublet state for complexes 2, 4. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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