摘要:
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye being a complex of six azo dyes and seven transition metal ions. A further aspect of the present invention relates to a method of recording information onto the optical information recording medium and a novel azo metal complex dye.
摘要:
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye being a complex of six azo dyes and seven transition metal ions. A further aspect of the present invention relates to a method of recording information onto the optical information recording medium and a novel azo metal complex dye.
摘要:
The optical information recording medium comprises a recording layer on a surface of a support. The surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye, the azo metal complex dye is a complex of one or more azo dye and transition metal ions of which number is equal to or greater than the number of the azo dye. The azo metal complex dye comprises two or more transition metal ions per molecule, and in a molecule of the azo metal complex dye.
摘要:
The optical information recording medium comprises a recording layer on a surface of a support. The surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye, the azo metal complex dye is a complex of one or more azo dye and transition metal ions of which number is equal to or greater than the number of the azo dye. The azo metal complex dye comprises two or more transition metal ions per molecule, and in a molecule of the azo metal complex dye.
摘要:
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the recording layer comprises at least one azo metal complex dye that is a complex of at least one azo dye and at least one metal ion, and the azo metal complex dye comprises equal to or more than four bonds, each of the bonds being formed between one azo dye molecule and one metal ion.
摘要:
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye in the form of a complex of at least one azo dye denoted by general formula (1) and at least one metal ion: wherein, in general formula (1), Q1 denotes an atom group forming a ring with two adjacent carbon atoms and a carbon atom bonded to —N═N-group, G1 denotes a heterocyclic group or carbocyclic group, and R1 denotes an alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.
摘要:
The invention provides an optical information recording medium having a recording layer capable of recording information by irradiating the recording layer with a laser beam of 440 nm or less.In the optical information recording medium, the recording layer contains an oxonol dye represented by formula (1), and a counter cation (Yt+) of this dye is a cationic dye having an absorption maximum in a range of longer wavelengths than an absorption maximum of an anionic part of the oxonol dye. In the formula, A, B, C and D each represents an electron-withdrawing group. A and B or C and D may be combined with each other to form a ring. If these are not combined with each other, these are electron-withdrawing groups in which the sum of Hammett's σp values of A and B and the sum of Hammett's σp values of C and D are each greater than 0.6. R represents a substituent group on methine carbon, and m represents an integer of 0 to 1. n represents an integer of 0 to 2m+1. If n is 2 or greater, a plurality of R's may be different from each other, and R and R may be combined together to form a ring. Yt+ represents a t-valent cation, and t represents an integer of 1 to 4.
摘要:
A blue laser-ready information recording medium improved in light stability and durability without impairment of record/playback characteristics is provided.The information recording medium is an optical information recording medium having on a substrate a recording layer that permits recording of information by irradiation with laser light of 440 nm or below, and is a heat-mode information recording medium that has a recording layer containing a methine dye and an organic oxidant on a transparent disk-form substrate on which a pregroove having a track pitch of 0.2 to 0.5 μm is formed, and that on the pregroove-formed side of the substrate.
摘要:
To provide an optical information recording medium allowing for high-density recording and reproduction of information by the irradiation with laser light of 440 nm or less and having excellent recording and reproducing characteristics (in particular, sensitivity and degree of modulation). An optical recording medium comprising a substrate having thereon a recording layer capable of recording information by the irradiation with laser light of 440 nm or less, wherein the recording layer comprises at least one platinum porphyrin represented by the following formula (I): Formula (I): wherein R11 to R18 each independently represents a hydrogen atom or a substituent.
摘要:
An optical information-recording medium comprises a recording layer comprising an oxonol dye represented by formula (1), and its counter cation is a cyanine cation: wherein A, B, C and D each represents an electron attractive group, wherein sum total of Hammett's σp values of A and B, and sum total of Hammett's σp values of C and D are respectively 0.6 or more, and A and B, or C and D may be linked with each other to make a ring; R represents a substituent on carbon of methine; m represents an integer of 0 or 1; n represents an integer of 0 to 2m+1, and when n represents an integer of 2 or more, plural R's may be the same or different, and they may be linked with each other to form a ring; Yt+ represents a t-valent cyanine cation; and t represents an integer of 1 to 10.
摘要翻译:光学信息记录介质包括由式(1)表示的氧杂菁染料的记录层,其抗衡阳离子是花青阳离子:其中A,B,C和D各自表示吸电子基团,其中Hammett's A和B的sigmap值,C和D的Hammett sigmap值的总和分别为0.6以上,A和B或C和D可以相互连接,形成环; R表示次甲基碳上的取代基; m表示0或1的整数; n表示0〜2m + 1的整数,当n表示2以上的整数时,多个R可以相同也可以不同,可以相互连接形成环。 Y + t +表示t价花青阳离子; t表示1〜10的整数。