摘要:
A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
摘要:
A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
摘要:
A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
摘要:
An optical recording medium comprising a substrate having thereon a recording layer containing at least two kinds of dye A and dye B, wherein dye A and dye B satisfy the following conditions (1) and (2): (1) the starting temperature of decomposition is from 150 to 250° C., (2) refractive index n(A) and extinction coefficient k(A) of dye A at the wavelength of recording laser ray, and refractive index n(B) and extinction coefficient k(B) of dye B at the same wavelength satisfy the following expressions: n(B)/n(A)>0.7 k(B)/k(A)>10.
摘要:
A silver halide color photographic photosensitive material comprising a yellow image forming photographic coupler, which is capable of forming images having excellent color reproduction and image fastness, and which has a high reactivity with an oxidized form of a developing agent. The aforementioned object has been realized by means of a silver halide color photographic photosensitive material containing a coupler represented by general formula (I): ##STR1## wherein X represents an organic residual group which is required, together with the nitrogen atom, to form a nitrogen containing heterocyclic ring, Y represents an aromatic group or a heterocyclic group, and Z represents a group which is eliminated when the coupler represented by said general formula reacts with the oxidized form of a developing agent.
摘要:
An optical film comprising at least one compound represented by formula (1) is disclosed. In the formula, Y11, Y12 and Y13 each independently represent methine or a nitrogen atom; R11, R12 and R13 each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R11, R12 and R13 each independently represent formula (A), (B) or (C). In the formulae, L12, L22, and L32 each represent a 5-membered heterocyclic group.
摘要:
Provided is a colored curable composition, comprising at least one tetraazaporphyrin dye represented by the following Formula (C1), a color filter prepared by using the same, and a production method thereof. wherein, R1 represents a substituent group; L represents an aliphatic or aromatic connecting group; Z1 represents a non-metal atom group needed for forming a six-membered ring with carbon atoms; at least one of the multiple groups R1 has —OY, —COOY, —SO3Y, —CON(Y)CO—, —CON(Y)SO2— or —SO2N(Y)CO—; Y represents a hydrogen atom, a metal atom or a conjugate acid; and M represents two hydrogen atoms, a bivalent metal atom, a bivalent metal oxide, a bivalent metal hydroxide or a bivalent metal chloride.
摘要:
A method of producing a compound represented by formula (1), including: allowing 1,4-benzoquinone or 1,2-benzoquinone to react with a dithiocarbamate compound represented by formula (2) in a polar solvent: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, R1 and R2 may be the same or different and may be combined with each other to form a ring, X represents an ion necessary to neutralize the charge of the molecule, m represents an integer of 1 to 2, n represents an integer of 1 to 2, M represents a hydrogen atom, a metal atom or a conjugate acid of a base, p represents an integer of 1 to 4, and q represents an integer of 1 to 4.
摘要:
A silver halide photographic material having on a support, at least one photosensitive silver halide emulsion layer, which contains a coupler which releases at least two groups selected from the group consisting of a photographically useful group and a precursor thereof via a timing group upon undergoing a coupling reaction with an oxidized product of a developing agent, in which a plurality of photographically useful groups or precursors thereof are present on different atoms of the timing group, provided that when the plurality of photographically useful groups have a different function to each other, the timing group is not a group utilizing an intramolecular nucleophilic substitution reaction.