Indolyl styrene salt compound, high density recording medium including said compound and its preparing method

A technology of indole styrene and recording media, applied in the field of high-density recording media, can solve the problems of short storage life of products, difficult to manufacture, and inability to share dyes.

Inactive Publication Date: 2008-08-13
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the laser wavelength used by high-density recording media such as DVD-R discs is 650nm and the laser wavelength 780nm used by CD-R discs is different, dyes cannot be shared
And with regard to present technology, known as the organic dye of the recording layer of high-density recording medium, although have the optical characteristic that can meet the requirement of high-density recording medium, because the stability to light and heat is relatively poor and difficult to make, Therefore, it is easy to lead to a shorter storage life of the product and an increase in cost

Method used

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  • Indolyl styrene salt compound, high density recording medium including said compound and its preparing method
  • Indolyl styrene salt compound, high density recording medium including said compound and its preparing method
  • Indolyl styrene salt compound, high density recording medium including said compound and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Take starting material (I) (R 1 =CH2-Ph-CO2-1-Naph) 3 grams of solids and 2.8 grams of sodium hexafluoroantimonate (NaSbF6) were heated to reflux in 45 milliliters of methanol, and after reacting for 48 hours, added After 1.06 grams, it was heated to reflux for 18 hours. Afterwards, the above-mentioned reaction product was filtered and dried to obtain 1.7 grams of blue-purple solid compound (3) (Y - for SbF 6 - ), after physical property analysis, it is measured that the absorption wavelength of compound (3) is 568nm (UV max =568nm), absorption coefficient (ε)=1.12×10 5 . Its UV analysis chart is shown in figure 1 .

Embodiment 2

[0059] Take starting material (I) (R 1 = ) of solid 1.3 g with 0.46 g was heated under reflux in 30 ml of ethanol for 16 hours, and then drained to obtain 2.3 g of green solid (II), and the green solid and sodium hexafluoroantimonate (NaSbF 6 ) 1.08 grams in 30 milliliters of ethanol, heated to reflux for 18 hours, filtered and dried to obtain 1.36 grams of blue-green solid compound (5) (Y - for SbF 6 - ), after physical property analysis, it is measured that the absorption wavelength of compound (5) is 567nm (UV max =567nm), absorption coefficient (ε)=1.11×10 5 . Its UV analysis chart is shown in figure 2 .

Embodiment 3

[0061] Take starting material (I) (R 1 = 4-fluorbenzyl) solid 10 g with 4.88 grams were heated under reflux in 100 milliliters of ethanol for 16 hours, after that, filtered to obtain 9.2 grams of green solid (2), and then 3.0 grams of this green solid (2) was mixed with sodium hexafluoroantimonate (NaSbF 6 ) 1.82 g in 50 ml of ethanol, heated to reflux for 18 hours, filtered and dried to obtain 3.45 g of blue solid compound (12) (Y - for SbF 6 - ), after physical property analysis, it was measured that the absorption wavelength of compound (12) was 564.5nm (UV max =564.5nm), absorption coefficient (ε)=1.18×10 5 , see its UV analysis diagram image 3 .

[0062] The indole styrene salt compound shown in Table 1 comprises an indole styrene cation and an anion (SbF 6 - or I - ), and the indole styrene salt compound can also be added to other ionic compounds in the presence of an organic solvent and heated to reflux to further replace its anion part with other anions (suc...

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Abstract

The present invention provides a kind of indolyl styrene salt compound suitable for high density record medium and the high density record medium including the compound. The indolyl styrene salt compound of the present invention has special chemical configuration and thus high absorption to wavelength of visible light region, high light, heat and chemical stability, high light sensitivity and excellent dissolubility. Therefore, the indolyl styrene salt compound may be used as optical record material for high density record medium, and it may be used to record shorter wavelength laser light. It has also high reflectivity and high carrier-to-noise ratio, and this further raises the record sensitivity and read characteristic of the high density record medium.

Description

technical field [0001] The present invention relates to an indole styrene salt compound, in particular to an indole styrene salt compound suitable for a recording layer of a high-density optical recording medium and a high-density recording medium containing the compound. Background technique [0002] In view of the progress of the times, the storage density and capacity of recording media in products including computers, communications, and consumer electronics are also increasing, resulting in a large amount of information circulation. Therefore, in order to achieve the purpose of mass circulation of information, a storage density is required. Higher, smaller, and lower production cost recording media. However, traditional magnetic recording media are no longer sufficient, and optical memory storage materials are the goal of research and development. [0003] As far as the optical recording medium is concerned, some principles and methods for increasing its recording dens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D209/14C07D209/18C07D209/60G11B7/24G11B7/245G11B7/2534G11B7/2538
Inventor 王心心蔡蕙冰赖启昌马骥骅杨忠烈郑尊仁廖文毅黄建喨李明家颜春福
Owner IND TECH RES INST
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