Silicon-containing formal 4π-electron four-membered ring systems: Antiaromatic, aromatic, or nonaromatic?

Keyphrases

• Four-membered Rings 100%
• Aromatics 100%
• Silicon-containing 100%
• Non-aromatic 100%
• Antiaromatic 100%
• Ring Systems 100%
• Compound II 66%
• Conjugated System 66%
• Orbital Splitting 66%
• Electron Systems 66%
• Bidentate Ligands 33%
• Dication 33%
• Density Functional Calculations 33%
• Electronic Analysis 33%
• Splitting Effect 33%
• B3LYP 33%
• Antiaromaticity 33%
• Monoanionic 33%
• Aromaticity 33%
• Amidinate Ligands 33%
• Nucleus-independent Chemical Shift 33%
• Conjugated Rings 33%
• Tetrasilacyclobutadiene 33%
• Diphosphacyclobutadienes 33%

Chemistry

• Silicon 100%
• Cyclic Structure 100%
• Chemical Shift 33%
• DFT-B3LYP Calculation 33%
• Antiaromaticity 33%
• Density Functional Theory 33%
• electronics 33%
• aromaticity 33%