A sulfonated dye salt is disclosed. The sulfonated dye salt has a phosphazene cation of formula (C):
wherein:
R
15
, R
16
and R
17
are each independently selected from the group consisting of: C
6-12
aryl, C
5-12
heteroaryl; N(R
20
)(R
21
) and —N═P[N(R
22
)
2
]
3
;
R
18
and R
19
are each independently selected from the group consisting of: H and C
1-8
alkyl; or R
18
and R
19
are together: ═P(Ph)
3
;
R
20
and R
21
are each independently selected from the group consisting of: H and C
1-8
alkyl; or R
20
and R
21
are together joined to form a nitrogen-containing C
5-10
heterocycloalkyl group; and
R
22
is C
1-6
alkyl.
揭示了一种磺化
染料盐。该磺化
染料盐具有公式(C)的
磷氮杂环阳离子,其中:R15、R16和R17分别独立地选自以下组:C6-12芳基、C5-12杂芳基;N(R20)(R21)和—N═P[N(
R22)2]3;R18和R19分别独立地选自以下组:H和C1-8烷基;或R18和R19一起:═P(Ph)3;R20和R21分别独立地选自以下组:H和C1-8烷基;或R20和R21一起连接形成含氮的C5-10杂环烷基;且
R22为C1-6烷基。