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Silicon tetrafluoride or tetrafluorosilane is a chemical compound with the formula Si F 4. This colorless gas is notable for having a narrow liquid range: its boiling point is only 4 °C above its melting point.
Formula: F 4 Si. Molecular weight: 104.0791. IUPAC Standard InChI:InChI=1S/F4Si/c1-5 (2,3)4 Copy. IUPAC Standard InChIKey:ABTOQLMXBSRXSM-UHFFFAOYSA-N Copy. CAS Registry Number: 7783-61-1. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript.
Silicon tetrafluoride | SiF4 or F4Si | CID 24556 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Chemical Properties of Silicon tetrafluoride (CAS 7783-61-1) PAff : Proton affinity (kJ/mol). BasG : Gas basicity (kJ/mol). SProt : Protonation entropy at 298K (J/mol×K). ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
Silicon tetrafluoride or tetrafluorosilane is a chemical compound with the formula Si F 4. This colorless gas is notable for having a narrow liquid range: its boiling point is only 4 °C above its melting point.
Boiling point: -86°C. Density: 4.6 kg dm -3 (gas) The following are some synonyms of silicon tetrafluoride: silicon tetrafluoride. silicon (IV) fluoride. silicon fluoride. tetrafluorosilane. The oxidation number of silicon in silicon tetrafluoride is 4. Synthesis. Not available. Element analysis.
I can justify that $\ce{SF4}$ has the higher boiling point because it is more polar since its Lewis structure has a lone pair on the sulfur atom, and so it experiences greater dipole-dipole forces. However, why does $\ce{SF4}$ have a lower melting point?
