Short Inorganic Trisilylaminopolysilazanes for Thin Film Deposition
A technology of dialkylamino and atomic layer deposition, applied in organic chemistry, compounds of group 4/14 elements of the periodic table, coatings, etc. question
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[0231] The following examples illustrate experiments performed in conjunction with the disclosure herein. This example is not intended to be all-inclusive and is not intended to limit the scope of the disclosures described herein.
[0232] In the glove box, 0.35g (2.7mmol) of (H 3 Si) 2 -N-SiH 2 Cl(TSA-Cl)* was mixed with 0.39 g of pentane. This mixture was added to 0.1 g (2.4 mmol) cyanamide (H 2 N-CN). A white precipitate appeared immediately. The solution was filtered twice. Both times the initially clear filtrate became cloudy.
[0233] The inferred reaction is 2(SiH 3 ) 2 NSiH 2 -Cl+4H 2 N-CN→[(SiH 3 ) 2 NSiH 2 ] 2 -NCN+2H 2 N-CN*HCl
[0234] Gas chromatography (GC) analysis indicated the presence of monochlorosilane, diethyl ether and pentane, unreacted TSA-Cl, (SiH 3 ) 2 NSiH 2- N-C≡N-SiH 3 , or [(SiH 3 ) 2 NSiH 2 ] 2 -N-C≡N(TSA 2 - cyanamide). There are many other smaller, unidentified peaks. The GC spectrum of the mixture is shown in figur...
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