23-01-2020 дата публикации
Номер: US20200024291A1
Принадлежит:
Thio(di)silanes comprising a thiosilane of formula (A): (RRRCS)(Si)XH(A) wherein subscript s is from 2 to 4 or a thiodisilane of formula (I): (RRRCS)(RN)(Si—Si)XH(I) wherein subscript s is from 1 to 6, and wherein R, R, R, R, X and subscripts n, x and h are defined herein. Also compositions comprising same, methods of making and using same, intermediates useful in synthesis of same, films and materials prepared therefrom. 1. A thiodisilane of formula (I):{'br': None, 'sup': 1a', '1b', '1c', '2, 'sub': s', '2', 'n', 'x', 'h, '(RRRCS)(RN)(Si—Si)XH\u2003\u2003(I),'}wherein:subscript s is an integer from 1 to 6;subscript n is an integer from 0 to 5;subscript x is an integer from 0 to 5;subscript h is an integer from 0 to 5;with the proviso that sum s+n+x+h=6;each H, when present in formula (I) (i.e., when subscript h is 1 to 5), is independently bonded to the same or different one of the silicon atoms in formula (I);each X is a monovalent halogen atom F, Cl, I, or Br and, when present in formula (I) is independently bonded to the same or different one of the silicon atoms in formula (I);{'sup': 1a', '1b', '1c, 'wherein R, R, and Rare defined by limitation (a), (b), or (c){'sup': 1a', '1a', '1b', '1c, 'sub': 2', '20', '1', '20, '(a) at least one Rindependently is (C-C)alkyl or phenyl and each of any remaining R, R, and Rindependently is H or (C-C)hydrocarbyl; or'}{'sup': 1a', '1b', '1c', '1a', '1b', '1c, 'sub': 6', '20', '1', '20, '(b) there is at least one group RRRC that independently is a substituted or unsubstituted (C-C)aryl and each of any remaining R, R, and Rindependently is H or (C-C)hydrocarbyl; or'}{'sup': 1a', '1b', '1c', '1', '1a', '1b', '1c', '11', '11', '1a', '1b', '1c, 'sub': 2', '3', '20', '1', '20, '(c) any two of R, R, and R(collectively Rgroups), in the same or different RRRC group, are bonded together to form a divalent group, —R—, wherein —R— is a CHor a (C-C)hydrocarbylene and each of any remaining R, R, and Rindependently is H or (C-C)hydrocarbyl ...
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