Silver halide photographic emulsion comprising methine compound and silver halide photographic material
申请人:——
公开号:US20010036607A1
公开(公告)日:2001-11-01
A silver halide photographic emulsion which comprises at least one methine compound represented by the following formula (I):
1
wherein X
1
and X
2
each represents an oxygen atom, a sulfur atom, a selenium atom, or N—R
3
, wherein R
3
represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a heterocyclic group; V
1
and V
2
each represents a monovalent substituent; n
1
and n
2
each represents 0, 1, 2, 3 or 4; L
1
, L
2
and L
3
each represents a methine group; l represents an integer of 0 to 3; M represents a counter ion for balancing electric charge; m represents a necessary number for balancing electric charge; and R
1
and R
2
each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, but at least either R
1
or R
2
represents the alkyl group represented by any of the following formulae:
R
a
=(Qa)
r
COoverscore (N)}SO
2
Raa
R
b
=(Qb)
s
SO
2
overscore (N)}CORbb
R
c
=(Qc)
t
COoverscore (N)}CORcc
R
d
=(Qd)
u
SO
2
overscore (N)}SO
2
Rdd
R
e
=(Qc)
v
X
wherein Raa, Rbb, Rcc and Rdd each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group, or an amino group; Qa, Qb, Qc, Qd and Qe each represents a divalent linking group; X represents SO
3
−
, CO
2
−
, or PO
3
2−
; and r, s, t, u and v each represents an integer of 1 or more, but when X represents SO
3
−
, v represents 1 or 2.
一种卤化银感光乳剂,它包含至少一种由下式(I)表示的甲烷化合物:
1
其中 X
1
和 X
2
分别代表氧原子、硫原子、硒原子或 N-R
3
其中 R
3
代表氢原子、取代或未取代的烷基、取代或未取代的芳基或杂环基团; V
1
和 V
2
分别代表一个一价取代基; n
1
和 n
2
各自代表 0、1、2、3 或 4; L
1
, L
2
和 L
3
各代表一个亚甲基; l 代表 0 至 3 的整数; M 代表平衡电荷的反离子; m 代表平衡电荷的必需数;以及 R
1
和 R
2
各自代表取代或未取代的烷基、取代或未取代的芳基或取代或未取代的杂环基,但至少 R
1
或 R
2
代表下式中任一式所代表的烷基:
R
a
等于;(Qa)
r
CO大于 (N)}SO
2
Raa
R
b
等于;(Qb)
s
SO
2
过分数(N)}CORbb
R
c
等于;(Qc)
t
CO过分数(N)}CORcc
R
d
等于;(Qd)
u
SO
2
过分数(N)}SO
2
Rdd
R
e
等于;(Qc)
v
X
其中 Raa、Rbb、Rcc 和 Rdd 分别代表烷基、芳基、杂环基、烷氧基、芳氧基、杂环氧基或氨基; Qa、Qb、Qc、Qd 和 Qe 分别代表二价连接基团;X 代表 SO
3
-
、CO
2
-
或 PO
3
2-
和 r、s、t、u 和 v 各代表 1 或 1 以上的整数,但当 X 代表 SO
3
-
时,v 代表 1 或 2。