Abstract: Silanes containing halogen which is bound to silicon are prepared using microwave energy. Silicon is reacted with mixtures of elements or compounds selected from the group consisting of halogen or halogen and organohalogen compounds or halogen and hydrogen or halogen and halogen hydrogen or organohalogen compounds or organohalogen compounds and hydrogen or organohalogen compounds and halogen hydrogen or halogen hydrogen or fluorosilanes and hydrogen, or fluorosilanes and halogen hydrogen or hydrogen containing chlorosilanes and hydrogen or hydrogen containing chlorosilanes and halogen hydrogen or organohalogensilanes and hydrogen or organohalogensilanes and halogen hydrogen or hydro-carbons and halogen hydro-carbons.

Abstract: The invention relates to a method for producing hydrogen by reacting amorphous silicon with water, an alcohol or a carboxylic acid. Said method can be carried out independently of carbon sources and water sources and performed in situ without any hydrogen transport or storage problems.

Abstract: Silanes containing halogen which is bound to silicon are prepared using microwave energy. Silicon is reacted with mixtures of elements or compounds selected from the group consisting of halogen or halogen and organohalogen compounds or halogen and hydrogen or halogen and halogen hydrogen or organohalogen compounds or organohalogen compounds and hydrogen or organohalogen compounds and halogen hydrogen or halogen hydrogen or fluorosilanes and hydrogen, or fluorosilanes and halogen hydrogen or hydrogen containing chlorosilanes and hydrogen or hydrogen containing chlorosilanes and halogen hydrogen or organohalogensilanes and hydrogen or organohalogensilanes and halogen hydrogen or hydro-carbons and halogen hydrocarbons.

Abstract: Highly pure and reactive amorphous silicon metal particles are prepared in an organic solvent by reducing a halosilane, organohalosilane, or salt thereof with a metal reducing agent. When the halogen is other than fluorine, and apolar organic solvent is employed. Numerous silicon-containing reactant sources may be used, and the process may be used thusly to purify silicon, or to prepare an amorphous silicon intermediate which can react with organohalogen compounds at low temperatures to produce organosilicon compounds such as methylhalosilanes.

Abstract: A method for the generation of energy is described according to which Si is obtained from SiO2 and/or silicates and the obtained Si is reacted with water to obtain SiO2 with release of energy and hydrogen.

Abstract: A process for the generation of energy by the combustion of silicon compounds having the bonds Si—C, Si—O, Si—Si and/or Si—H is described. Such compounds are appropriate energy carriers as alternative with respect to hydrocarbons.

Abstract: A process for the production of silicon nitride (Si3N4) is described. According to this process nitrogen and/or nitrogen compounds are reacted with silicon and/or silicon compounds in a reaction chamber by means of a subgroup element or a subgroup element oxide. The process can be carried out in a simple and rapid manner and has a high yield.

Abstract: A method of operating a drive mechanism, especially missile propulsion system or shaft drive system, is described. According to this method nitrogen and/or nitrogen compounds are reacted with silicon and/or silicon compounds by means of a subgroup element or subgroup element oxide in a reaction chamber wherein silicon nitride is formed and the energy set free during this reaction is used for the operation of the drive mechanism.

Abstract: A silacyclobutene compound having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently chloro, triorganosiloxy, organooxy, triorganosilyl, or a monovalent hydrocarbon group; R.sup.3 is a monovalent hydrocarbon group free of conjugated aliphatic unsaturation or triorganosilyl; R.sup.5 is hydrogen or a monovalent hydrocarbon group free of conjugated aliphatic unsaturation; and R.sup.4 and R.sup.6 are independently hydrogen or a monovalent hydrocarbon group free of conjugated aliphatic unsaturation or together are an alkanediyl group, wherein the alkanediyl group and the carbon atoms to which it is attached form a carbocyclic ring having 4 to 7 carbon atoms; provided that R.sup.3 is not aryl. Methods of preparing the silacyclobutene compounds, silane polymers containing at least one silacyclobutene unit, and siloxane polymers containing at least one silacyclobutene unit.

Abstract: A silacyclobutane compound having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently chloro, triorganosiloxy, organooxy, triorganosilyl, or a monovalent hydrocarbon group; R.sup.3 is a monovalent hydrocarbon group free of conjugated aliphatic unsaturation, triorganosilyl, or hydrogen; and R.sup.4 is a monovalent saturated hydrocarbon group; provided that when R.sup.3 is hydrogen, neither R.sup.1 nor R.sup.2 is chloro or organooxy. Methods of preparing the silacyclobutane compounds, silane polymers containing at least one silacyclobutane unit, and siloxane polymers containing at least one silacyclobutane unit.

Abstract: Photoluminescent polydisilacyclobutanes are made by reacting a dialkenyldihalocarbosilane with an organolithium reagent in the presence of a solvent at 0-25 .degree. C.

Abstract: Photoluminescent polydisilacyclobutanes are made by reacting a dialkenyldihalosilane with an organolithium reagent in the presence of a solvent at 0-25.degree. C. Optional reactants such as aromatic acetylenic hydrocarbons or bicyclic dienes may also be included.

Abstract: Silyl cation of the formula Si.sup.+ R.sub.2 R' wherein R denotes a hydrogen, a hydrocarbon or fluorine and R' denotes a norbornyl or cyclopentenyl containing substituent is free of co-ordination with a solvent and is stable at a temperature of upto at least 40.degree.C. Also disclosed is a compound consisting of the cation and a borate or carborane anion, a composition comprising the cation and a solvent and a process for making the cation.

Abstract: Photoluminescent bicyclic polydisilacyclobutanes are made by reacting a dialkenyldihalocarbosilane with an organolithium reagent in the presence of a solvent at 0.degree.-25.degree. C.

Abstract: Silacyclobutene monomers, and polymers based on silacyclobutene building blocks, exhibit photoluminescence in the blue region of the visible spectrum when excited by ultraviolet light.