Journal
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
Volume 19, Issue 1, Pages 108-129Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14686996.2017.1414552
Keywords
Silicon; pi-electron systems; disilenes; conjugation; bulky protecting groups
Categories
Funding
- Precursory Research for Embryonic Science and Technology (PRESTO) from Japan Science and Technology Agency (JST)
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [24109003, 2408]
- MEXT
- Japan Society for the Promotion of Science (JSPS) [JP16J01036]
- Kindai University
- [24350031]
- [15H03788]
- Grants-in-Aid for Scientific Research [15H03788, 16J01036, 24109003] Funding Source: KAKEN
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Sterically large substituents can provide kinetic stabilization to various types of low-coordinate compounds. For example, regarding the chemistry of the group 14 elements, since West et al. introduced the concept of kinetic protection of the otherwise highly reactive Si=Si double bond by bulky mesityl (2,4,6-trimethylphenyl) groups in 1981, a number of unsaturated compounds of silicon and its group homologs have been successfully isolated by steric effects using the appropriate large substituents. However, the functions and applications of the Si-Si pi-bonds consisting of the 3p pi electrons on the formally sp(2)-hybridized silicon atoms have rarely been explored until 10 years ago, when Scheschkewitz and Tamao independently reported the model systems of the oligo(p-phenylenedisilenylene)s (Si-OPVs) in 2007. This review focuses on the recent advances in the chemistry of pi-electron systems containing Si=Si double bonds, mainly published in the last decade. The synthesis, characterization, and potential application of a variety of donor-free pi-conjugated disilene compounds are described. [GRAPHICS]
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