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US 12,030,781 B2Granted
Method of preparing cyclosilane
AssigneeThe Coretec Group Inc.
InventorsRamez Ahmed Elgammal, Michael Anthony Kraft
Life of this patent
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Abstract
A method includes producing a substituted cyclosilane by combining in a solvent the following: (i) halogenated cyclosilane, (ii) at least one of tri-alkyl or tri-aryl silane, and (iii) a complexing agent that includes at least one of ammonium halide or phosphonium halide. The halogenated cyclosilane reacts to produce the substituted cyclosilane.
Claims20
A method comprising:
- producing a substituted cyclosilane by combining in a solvent the following:
- (i) halogenated cyclosilane, (ii) at least one of tri-alkyl or tri-aryl silane, and (iii) a complexing agent including at least one of ammonium halide or phosphonium halide, the halogenated cyclosilane reacting to produce the substituted cyclosilane.
A method comprising:
- producing a mixture by combining in a solvent the following:
- (i) halogenated cyclohexasilane, (ii) at least one of tri-alkyl or tri-aryl silane, and (iii) a complexing agent including at least one of ammonium halide or phosphonium halide;
- agitating the mixture, the halogenated cyclohexasilane reacting in the mixture to produce substituted cyclohexasilane;
- and
- separating the substituted cyclohexasilane from the mixture to produce pure substituted cyclohexasilane.
2 more elements
A method comprising:
- producing a substituted cyclosilane of formulation Si6R12, where Si is silicon and R is hydrogen, by combining in a solvent the following:
- (i) halogenated cyclosilane of formulation [Xa][Si6X114], where Xa is a counter-ion including at least one of NRh4 or PRh4, wherein N is nitrogen, P is phosphorous, and Rh is a halide, and X1 is a halogen (ii) a compound of formula R13SiH, where R1 is alkyl or aryl and H is hydrogen, and (iii) a complexing agent of formula QR24X2 where Q is nitrogen or phosphorous, R2 is butyl or ethyl, and X2 is a halogen, the halogenated cyclosilane of formulation [Xa][Si6X114] reacting to produce the substituted cyclosilane of formulation Si6R12.
Dependencies are inferred from the claim text.