Silver halide photographic emulsion, silver halide photosensitive material, and novel iridium complex and preparation process thereof
申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20040002025A1
公开(公告)日:2004-01-01
Provided are a silver halide photographic emulsion containing a metal complex represented by the following formula (I):
M
m
[IrCl
n
(L
1
)
k
(L
2
)
6-n-k
] (I)
wherein, M represents a cation or anion, m represents an integer of 0 to 4, n represents an integer of 3 to 5, k represents an integer of 0 to 3, L
1
represents a ligand selected from the group consisting of pyrroles, thiophenes, pyrazoles, isoxazoles, isothiazoles, imidazole, oxazoles, furazanes, heterocycles having at least 3 hetero atoms and ureas, L
2
represents an inorganic ligand other than Cl with the proviso that when k represents 0, L
2
represents none of F, Br, I, NO, H
2
O, CO and C
2
O
4
; and a metal complex represented by the following formula (IV):
N
k′
[IrX
6-n′
Q
n′
] (IV)
wherein, N represents a counter cation; X represents a halogen ion; Q represents a compound which contains at least three atoms selected from nitrogen and sulfur atoms, and 5 or less carbon atoms, may contain another atom, and exhibits a ratio of (the number of carbon atoms)/(the total number of nitrogen atoms+oxygen atoms+sulfur atoms) of less than 0.5; n′ represents an integer of 1 or 2 and k′ represents the number of counter cations necessary for neutralizing the charge of a complex salt.
本发明提供了一种卤化银感光乳剂,其中含有下式 (I) 所代表的金属络合物:
M
m
IrCl
n
(L
1
)
k
(L
2
)
6-n-k
(I)
其中,M 代表阳离子或阴离子,m 代表 0 至 4 的整数,n 代表 3 至 5 的整数,k 代表 0 至 3 的整数,L
1
代表选自吡咯、噻吩、吡唑、异噁唑、异噻唑、咪唑、噁唑、呋喃、具有至少 3 个杂原子的杂环和脲组成的组的配体, L
2
代表 Cl 以外的无机配体,但当 k 代表 0 时,L
2
代表 F、Br、I、NO、H
2
O、CO 和 C
2
O
4
和下式 (IV) 所代表的金属络合物:
N
k′
[IrX
6-n′
Q
n′
(IV)
其中,N 代表反阳离子;X 代表卤素离子;Q 代表一种化合物,该化合物含有至少三个从氮原子和硫原子中选出的原子,以及 5 个或更少碳原子,可能含有另一种原子,且(碳原子数)/(氮原子&加;氧原子&加;硫原子总数)之比小于 0.5;n′ 代表 1 或 2 的整数,k′ 代表中和复盐电荷所需的反阳离子数。