14475-38-8

Basic information

• Product Name: silanol
• Synonyms: silanol
• CAS NO: 14475-38-8
• Molecular Formula: H4OSi
• Molecular Weight: 48.12
• Mol File: 14475-38-8.mol
• Article Data: 6

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• PKA: 12.63±0.53(Predicted)
• CAS DataBase Reference: silanol(CAS DataBase Reference)
• NIST Chemistry Reference: silanol(14475-38-8)
• EPA Substance Registry System: silanol(14475-38-8)

Safety Data

• Hazardous Substances Data: 14475-38-8(Hazardous Substances Data)

Usage

Definition

ChEBI: The simplest silanol, consisting of a single silicon atom covalently bouund to three hydrogens and a hydroxy group.

InChI:InChI=1/HOSi/c1-2/h1H

Upstream product

• 7440-21-3 monosilane 
• 10024-97-2 dinitrogen monoxide 
• 7732-18-5 water 
• 7440-21-3 silacarbene 
• 1590-87-0 disilane 
• 7440-21-3 silyl 
• 80937-33-3 oxygen 
• 12503-59-2 silaformyl anion 
• 7440-21-3 silicon 
• 117800-17-6 OsO₂⁽¹⁺⁾ 

Relevant articles and documents

Matrix Reactions opf Silan and Oxygen Atoms. Infrared Spectroscopic Evidence for the Silanol, Silanone, and Silanoic and Silicic Acid Molecules

Matrices formed by the cocondensation of SiH4 and O3 in argon at 17 K were irradiated by a high-pressure mercury arc.Photoproducts include the silicon-oxygen double bond containing species SiO, H2SiO, H(HO)SiO, and (HO)2SiO.HSiOH was prepared in high yield by the reaction of SiH4 with O atoms from the microwave discharge of O2 in excess argon.In both photolysis and discharge experiments, SiH3OH is proposed as a primary reaction product formed by insertion of O atoms an Si-H bond of SiH4.

Microwave spectrum of HSiO in the X2A' ground electronic state

The rotational spectrum of the HSiO radical has been measured in the millimeter- and submillimeter-wave regions. The radical is produced in a d.c. glow discharge plasma of a gaseous mixture of SiH4 and N2O. Molecular constants includ

Osmium Tetroxide and Its Fragment Ions in the Gas Phase: Reactivity with Hydrocarbons and Small Molecules

Gas-phase ion-molecule reactions of OsOn(1+) (n=0-4) with a number of hydrocarbons and small molecules, including CH4, C2H4, C2H6, C3H8, C4H10, H2, CO, NH3, and SiH4, have been investigated by Fourier transform ion cyclotron resonance spectrometry.Anion chemistry was briefly investigated.Thermochemical quantities derived include D(Os(1+)-O)=100+/-12, D(OsO(1+)-O)=105+/-12, D(OsO2(1+)-O)=105+/-12, D(OsO3(1+)-O)=71+/-12, D(OsO3-O)=78+/-14, D(OsO4(1+)-H)=132+/-3 kcal/mol, D(OsO3(1+)-OH)=101+/-16 kcal/mol, and PA(OsO4)=161+/-2 kcal/mol.Many diverse and novel reactions are observed.Among them are s+2s> cycloaddition with H2, bond metathesis, oxo transfer, and hydrogen atom abstraction.These ions are also extraordinarily active dehydrogenation reagents; the most dramatic example is the sequential, complete dehydrogenation of SiH4 to mono-, di-, and trisilicides.Another intriguing process is the double bond metathesis with NH3, in which one or two oxo ligands are exchanged for imido groups.The number of oxo ligands is found to have a striking effect on the chemistry; mechanisms are discussed for the reactions observed.For example, the relative inertness of OsO3(1+) is attributed to a failure of the Os(+7) center to undergo oxidative addition.OsO2(1+) emerges as a potential model catalyst for the conversion of methane and dioxygen to aldehydes.