Patent ID: 7531679

Claim:
A silicon compound of the formula [SiX n (NR 1 R 2 ) 3-n ] 2 (1) wherein: R 1 and R 2 may be the same as or different from one another and each is independently selected from the group consisting of H, C 1 -C 5 , alkyl, and C 3 -C 6 cycloalkyl; X is selected from the group consisting of halogen, hydrogen and deuterium; and 0<n≦2, with the proviso that when R 1 =R 2 =ethyl or methyl, X≠Cl, when R 1 =R 2 =ethyl and n=1 or 2, X≠H, when R 1 =R 2 =isopropyl and n=2, X≠Cl or H, and when R 1 =R 2 =isopropyl and n=1, X≠H.