JP5139989B2 - 光情報記録媒体及びアゾ金属錯体色素 - Google Patents
光情報記録媒体及びアゾ金属錯体色素 Download PDFInfo
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- JP5139989B2 JP5139989B2 JP2008536442A JP2008536442A JP5139989B2 JP 5139989 B2 JP5139989 B2 JP 5139989B2 JP 2008536442 A JP2008536442 A JP 2008536442A JP 2008536442 A JP2008536442 A JP 2008536442A JP 5139989 B2 JP5139989 B2 JP 5139989B2
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- 230000035699 permeability Effects 0.000 description 1
- 125000006678 phenoxycarbonyl group Chemical group 0.000 description 1
- RPGWZZNNEUHDAQ-UHFFFAOYSA-N phenylphosphine Chemical compound PC1=CC=CC=C1 RPGWZZNNEUHDAQ-UHFFFAOYSA-N 0.000 description 1
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
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- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000001844 prenyl group Chemical group [H]C([*])([H])C([H])=C(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 235000019260 propionic acid Nutrition 0.000 description 1
- 150000003217 pyrazoles Chemical group 0.000 description 1
- ANIDRZQDJXBHHM-UHFFFAOYSA-N pyridin-2-ylphosphane Chemical compound PC1=CC=CC=N1 ANIDRZQDJXBHHM-UHFFFAOYSA-N 0.000 description 1
- 125000000246 pyrimidin-2-yl group Chemical group [H]C1=NC(*)=NC([H])=C1[H] 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000001552 radio frequency sputter deposition Methods 0.000 description 1
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- 229910052706 scandium Inorganic materials 0.000 description 1
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
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- 125000006850 spacer group Chemical group 0.000 description 1
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- 125000003696 stearoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- FAGLEPBREOXSAC-UHFFFAOYSA-N tert-butyl isocyanide Chemical compound CC(C)(C)[N+]#[C-] FAGLEPBREOXSAC-UHFFFAOYSA-N 0.000 description 1
- ILMRJRBKQSSXGY-UHFFFAOYSA-N tert-butyl(dimethyl)silicon Chemical group C[Si](C)C(C)(C)C ILMRJRBKQSSXGY-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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- G11B7/2467—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes azo-dyes
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
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- C09B45/18—Monoazo compounds containing copper
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
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- C09B45/20—Monoazo compounds containing cobalt
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
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- C09B45/22—Monoazo compounds containing other metals
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B69/00—Dyes not provided for by a single group of this subclass
- C09B69/02—Dyestuff salts, e.g. salts of acid dyes with basic dyes
- C09B69/04—Dyestuff salts, e.g. salts of acid dyes with basic dyes of anionic dyes with nitrogen containing compounds
- C09B69/045—Dyestuff salts, e.g. salts of acid dyes with basic dyes of anionic dyes with nitrogen containing compounds of anionic azo dyes
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- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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Description
(L2-)n(L’)m(M)r・(Xp+)k'
一般式(A)中、L2-は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L’は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、nは1〜4の範囲の整数を表し、mは0〜3の範囲の整数を表し、rは1又は2を表し、Xp+はp価のカチオンであり、pは1〜10の範囲の整数を表し、k’は0<k’≦4の範囲であり一般式(A)中の負電荷をpで割った値を表す。
(L2-)s(L2)t(M)u・(Yv-)w
一般式(B)中、L2-は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L2は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、sは1〜4の範囲の整数を表し、tは0〜14の範囲の整数を表し、uは2から5の整数を表し、Yv-はv価のアニオンであり、vは1〜10の範囲の整数を表し、wは0<w≦4の範囲であり一般式(B)中の正電荷をvで割った値を表す。
[(Cu2+)5(L2-)4]2+(Yv-)w
一般式(C)中、L2-は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、(Yv-)wは(Cl-)2、(Br-)2、(I-)2、(ClO4 -)2、(PF6 -)2、(BF4−)2、SO4 2-、(CH3COO-)2のいずれかを表す。
態様(1)の光情報記録媒体は、少なくとも、基板と、追記型記録層と、カバー層とを有する態様である。態様(1)の光情報記録媒体の具体例を、図1に示す。図1に示す光情報記録媒体10Aは、基板12上に、光反射層18と、追記型記録層14と、バリア層20と、接着層又は粘着層22と、カバー層16とをこの順に有する。
態様(1)の基板12には、トラックピッチ、溝幅(半値幅)、溝深さ、及びウォブル振幅のいずれもが下記の範囲である形状を有するプリグルーブ34(案内溝)が形成されている。このプリグルーブ34は、CD−RやDVD−Rに比べてより高い記録密度を達成するために設けられたものであり、例えば、本発明の光情報記録媒体を、青紫色レーザに対応する媒体として使用する場合に好適である。
態様(1)の追記型記録層14は、色素を、結合剤等と共に又は結合剤を用いないで適当な溶剤に溶解して塗布液を調製し、次いで、この塗布液を基板上又は後述する光反射層上に塗布して塗膜を形成した後、乾燥することにより形成することができる。ここで、追記型記録層は、単層でも重層でもよく、重層構造の場合、塗布液を塗布する工程が複数回行なわれることになる。
態様(1)のカバー層16は、通常、上述した追記型記録層14上に、又は図1に示すようにバリア層20上に、接着層又は粘着層22を介して貼り合わされる。
態様(1)の光情報記録媒体10Aは、本発明の効果を損なわない範囲においては、上記の必須の層に加え、他の任意の層を有していてもよい。他の任意の層としては、例えば、基板12の裏面(追記型記録層14が形成された側と逆側の非形成面側)に形成される、所望の画像を有するレーベル層や、基板12と追記型記録層14との間に設けられる光反射層18(詳細は後述する)、追記型記録層14とカバー層16との間に設けられるバリア層20(詳細は後述する)、該光反射層18と追記型記録層14との間に設けられる界面層等が挙げられる。ここで、前記レーベル層は、紫外線硬化樹脂、熱硬化性樹脂、及び熱乾燥樹脂等を用いて形成することができる。
態様(1)の光情報記録媒体10Aにおいては、図1に示すように、追記型記録層14とカバー層16との間にバリア層20を形成することが好ましい。
態様(2)の光情報記録媒体は、少なくとも、基板と、追記型記録層と、保護基板とを有し、好ましくは貼り合わせ型の光情報記録媒体である。その代表的な層構成は下記の通りである。
態様(2)における基板24には、トラックピッチ、溝幅(半値幅)、溝深さ、及びウォブル振幅のいずれもが下記の範囲である形状を有するプリグルーブ36(案内溝)が形成されている。このプリグルーブ36は、CD−RやDVD−Rに比べてより高い記録密度を達成するために設けられたものであり、例えば、光情報記録媒体10Bを、青紫色レーザに対応する媒体として使用する場合に好適である。
態様(2)における追記型記録層26に関する詳細については、態様(1)の追記型記録層14と同様である。
態様(2)において、レーザ光46に対する反射率を高めたり、記録再生特性を改良する機能を付与するために、追記型記録層26上に光反射層30を形成することができる。態様(2)の光反射層30に関する詳細は、態様(1)の光反射層18と同様である。
態様(2)では、光反射層30と後述の保護基板28との密着性を向上させるために、光反射層30と保護基板28の間に接着層32を設けることもできる。
態様(2)における保護基板28(ダミー基板)は、上述した基板12と同じ材質で、同じ形状のものを使用することができる。保護基板28の厚さは、一般に厚さ0.1〜1.0mmの範囲であり、0.2〜0.8mmの範囲であることが好ましく、0.3〜0.7mmの範囲であることがより好ましい。
態様(2)の光情報記録媒体10Bは、その層構成によっては、光反射層30や追記型記録層26等を物理的及び化学的に保護する目的で保護層が設けられることがある。
態様(2)の光情報記録媒体10Bは、本発明の効果を損なわない範囲においては、上記の層に加え、他の任意の層を有していてもよい。他の任意の層の詳細については、前記態様(1)のその他の層と同様である。
例示化合物(M−1)の合成法に倣い、Co(OAc)2・4H2OをNi(OAc)2・4H2Oに置き換え、同様に反応させることで化合物(M−2)を合成した。化合物の同定はMALDI−MSにて確認した。m/z=762(nega)、102(posi)。
比較化合物(C):特開2006−142789号公報範疇の化合物
50mlナスフラスコに化合物(A−3)100mg、メタノール3mlを入れ、攪拌しながらNiCl2・6H2O 34mgを加え、30分攪拌した。蒸留水20mlを加えた後、生成した沈殿物をろ過した。蒸留水にて洗浄し、乾燥を施して比較化合物(C)110mgを得た。化合物の同定はMALDI−MSにて確認した。m/z=763.5(posi)。
(基板12の作製)
厚さ1.1mm、外径120mm、内径15mmでスパイラル状のプリグルーブ34(トラックピッチ:320nm、溝幅:グルーブ40(凹部)幅190nm、溝深さ:47nm、溝傾斜角度:65°、ウォブル振幅:20nm)を有する、ポリカーボネート樹脂からなる射出成形基板を作製した。射出成型時に用いられたスタンパのマスタリングは、レーザーカッティング(351nm)を用いて行われた。
基板12上に、Unaxis社製Cubeを使用し、Ar雰囲気中で、DCスパッタリングにより、膜厚60nmの真空成膜層としてのANC光反射層(Ag:98.1at%、Nd:0.7at%、Cu:0.9at%)を形成した。光反射層18の膜厚の調整は、スパッタ時間により行った。
実施例1〜10として、化合物(M−1)、(M−13)、(M−16)、(M−17)、(M−22)、(M−23)、(M−26)、(M−32)、(M−2)、(M−38)をそれぞれ1gを、2,2,3,3−テトラフルオロプロパノール100ml中に添加して溶解し、色素含有塗布液を調製した。そして、光反射層18上に、調製した色素含有塗布液を、スピンコート法により回転数500〜2200rpmまで変化させながら23℃、50%RHの条件で塗布して、追記型記録層14を形成した。
その後、追記型記録層14上に、Unaxis社製Cubeを使用し、Ar雰囲気中で、DCスパッタリングによりNb2O5からなる、厚さ10nmのバリア層20を形成した。
カバー層16としては、内径15mm、外径120mmで、片面に粘着層(ガラス転移温度−26℃)を有するポリカーボネート製フイルム(帝人ピュアエース、厚さ:80μm)を用い、該粘着層とポリカーボネート製フイルムとの厚さの合計が100μmとなるように設定した。
追記型記録層14に使用する色素として例示化合物(M−1)に代えて比較化合物(A)〜(H)を使用した以外は同様の方法で比較例1〜8の光情報記録媒体を作製した。
(1) C/N(搬送波対雑音比)評価
作製した光情報記録媒体を、403nmレーザ、NA0.85ピックアップを有する記録再生評価機(パルステック社製:DDU1000)を用い、クロック周波数66MHz、線速4.92m/sにて、0.16μmの信号(2T)を記録、再生しスペクトルアナライザ(ローデ&シュウバルツ社製FSP−3型)にて記録ピットを再生した。記録後の16MHzの出力をCarrier出力、記録前の16MHzの出力をNoise出力として、記録後の出力−記録前の出力をC/N値とした。なお、本評価は、本実施の形態の光情報記録方法を用いたものであり、記録はグルーブ上に行った。また、記録パワー5〜6mW、再生パワー0.3mWであった。結果を表4に示す。記録特性の指標となる2T記録C/N比は、記録パワーを強くすれば値が高くなっていく傾向があるが、2T記録C/N比と記録感度の双方の観点から、5〜6mWで(記録後の)C/Nが35dB以上であると、記録感度及び再生信号強度が共に十分であり、記録特性が好ましいことを指す。
実施例1〜10、比較例1〜8と同様の色素含有塗布液を調製し、厚さ1.1mmのガラス板上に、調製した色素含有塗布液を、スピンコート法により回転数500〜1000rpmまで変化させながら23℃、50%RHの条件で塗布した。その後、23℃、50%RHで24時間保存した後、メリーゴーランド型耐光試験機(イーグルエンジニアリング社製、セルテスト機III型、Schott製WG320フィルタ付)を用いて耐光性試験を行った。耐光性試験直前の色素膜及び耐光性試験48時間後の色素膜について、UV−1600PC(SHIMADZU社製)を用いて色素膜の吸収スペクトルを測定し、最大吸収波長における吸光度の変化を読み取った。光情報記録媒体用色素としては、記録情報の長期保存を観点として、極めて高い耐光性が求められる。本試験において85%以上であると、実用的に十分であり、耐光性が好ましいことを指す。
実施例1〜10のアゾ金属錯体色素について、2,2,3,3−テトラフルオロプロパノールに対して吸光度0.95〜1.05(セル幅1cm)となるように溶解させ、色素膜の耐光性評価と同じ条件にて、耐光性評価を行った。その結果、溶液中の耐光性はいずれも極めて高く、48時間後の色素残存率は90%以上であった。種々の用途において色素に求める重要な性能として耐光性が挙げられることから、膜、溶液中いずれの状態においても耐光性に優れる本発明の化合物はインク、カラーフィルタ、色変換フィルタ、写真用材料、熱転写記録材料等の種々の用途において好ましい性能を示すことがわかった。
Claims (15)
- トラックピッチ50〜500nmのプリグルーブを有する基板と、440nm以下のレーザ光を照射することによって情報の記録が可能な記録層とを有し、
前記記録層は、下記一般式(1−1)又は一般式(1−2)と銅イオンからなるアゾ金属錯体色素を少なくとも一種含有し、
一般式(1−1)又は一般式(1−2)は、Qに解離し得る水素原子を有し、
前記アゾ金属錯体色素は、前記Qに解離し得る前記水素原子と、下記一般式(1−1)又は一般式(1−2)中に*で記されている−NH−基の水素原子とが共に解離して前記銅イオンと結合してなる光情報記録媒体であって、
前記アゾ金属錯体色素は、下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンと金属イオンの数比が4対5であることを特徴とする光情報記録媒体。
- 請求項1記載の光情報記録媒体であって、
前記アゾ金属錯体色素が、下記一般式で表されることを特徴とする光情報記録媒体。
一般式
(L2−)s(L2)t(M)u・(Xp+)w
[式中、L2−は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L2は配位子を表し、Mは銅イオンを表し、sは1〜4の範囲の整数を表し、tは0〜14の範囲の整数を表し、uは2から5の整数を表し、Xp+はp価のカチオンであり、pは1〜10の範囲の整数を表し、wは0<w≦4の範囲であり一般式中の負電荷をpで割った値を表す。]
- 請求項3記載の光情報記録媒体において、
前記Qは、前記式(q−1)で表されることを特徴とする光情報記録媒体。 - トラックピッチ50〜500nmのプリグルーブを有する基板と、440nm以下のレーザ光を照射することによって情報の記録が可能な記録層とを有し、
前記記録層は、下記一般式(1−1)又は一般式(1−2)と金属イオンからなるアゾ金属錯体色素を少なくとも一種含有し、
一般式(1−1)又は一般式(1−2)は、Qに解離し得る水素原子を有し、
前記アゾ金属錯体色素は、前記Qに解離し得る前記水素原子と、下記一般式(1−1)又は一般式(1−2)中に*で記されている−NH−基の水素原子とが共に解離して金属イオンと結合してなる光情報記録媒体であって、
前記記録層は、下記一般式(A)で表されるアゾ金属錯体色素を少なくとも一種含有し、
一般式(A)
(L 2− ) n (L’) m (M) r ・(X p+ ) k’´
[式中、L 2− は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L’は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、nは1〜4の範囲の整数を表し、mは0〜3の範囲の整数を表し、rは1又は2を表し、X p+ はp価のカチオンであり、pは1〜10の範囲の整数を表し、k’は0<k’≦4の範囲であり一般式(A)中の負電荷をpで割った値を表す。]
さらに、前記アゾ金属錯体色素が、下記一般式(2−1)で表されるアゾ金属錯体色素であることを特徴とする光情報記録媒体。
一般式(2−1)
- トラックピッチ50〜500nmのプリグルーブを有する基板と、440nm以下のレーザ光を照射することによって情報の記録が可能な記録層とを有し、
前記記録層は、下記一般式(1−1)又は一般式(1−2)と金属イオンからなるアゾ金属錯体色素を少なくとも一種含有し、
一般式(1−1)又は一般式(1−2)は、Qに解離し得る水素原子を有し、
前記アゾ金属錯体色素は、前記Qに解離し得る前記水素原子と、下記一般式(1−1)又は一般式(1−2)中に*で記されている−NH−基の水素原子とが共に解離して金属イオンと結合してなる光情報記録媒体であって、
前記記録層は、下記一般式(A)で表されるアゾ金属錯体色素を少なくとも一種含有し、
一般式(A)
(L 2− ) n (L’) m (M) r ・(X p+ ) k’´
[式中、L 2− は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L’は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、nは1〜4の範囲の整数を表し、mは0〜3の範囲の整数を表し、rは1又は2を表し、X p+ はp価のカチオンであり、pは1〜10の範囲の整数を表し、k’は0<k’≦4の範囲であり一般式(A)中の負電荷をpで割った値を表す。]
さらに、前記アゾ金属錯体色素が、下記一般式(3−1)で表されるアゾ金属錯体色素であることを特徴とする光情報記録媒体。
一般式(3−1)
- 請求項5又は6記載の光情報記録媒体において、
前記Xp+は、アンモニウムカチオンであることを特徴とする光情報記録媒体。 - 請求項5〜7のいずれか1項に記載の光情報記録媒体において、
トラックピッチ50〜500nmのプリグルーブを有する基板のプリグルーブを有する面上に、反射層、記録層が順に積層されていることを特徴とする光情報記録媒体。 - 請求項9記載のアゾ金属錯体色素であって、
下記一般式で表されることを特徴とするアゾ金属錯体色素。
一般式
(L2−)s(L2)t(M)u・(Xp+)w
[式中、L2−は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L2は配位子を表し、Mは銅イオンを表し、sは1〜4の範囲の整数を表し、tは0〜14の範囲の整数を表し、uは2から5の整数を表し、Xp+はp価のカチオンであり、pは1〜10の範囲の整数を表し、wは0<w≦4の範囲であり一般式中の負電荷をpで割った値を表す。]
- 請求項11記載のアゾ金属錯体色素において、
前記Qは、ヘテロ環基であって、前記式(q−1)で表されることを特徴とするアゾ金属錯体色素。 - 下記一般式(1−1)又は一般式(1−2)と金属イオンとを含み、
一般式(1−1)又は一般式(1−2)は、Qに解離し得る水素原子を有し、該水素原子と、下記一般式(1−1)又は一般式(1−2)中に*で記されている−NH−基の水素原子とが共に解離して金属イオンと結合してなり、
さらに、下記一般式(A)で表されるアゾ金属錯体色素であって、
一般式(A)
(L 2− ) n (L’) m (M) r ・(X p+ ) k’´
[式中、L 2− は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L’は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、nは1〜4の範囲の整数を表し、mは0〜3の範囲の整数を表し、rは1又は2を表し、X p+ はp価のカチオンであり、pは1〜10の範囲の整数を表し、k’は0<k’≦4の範囲であり一般式(A)中の負電荷をpで割った値を表す。]
下記一般式(2−1)で表されることを特徴とするアゾ金属錯体色素。
一般式(2−1)
- 下記一般式(1−1)又は一般式(1−2)と金属イオンとを含み、
一般式(1−1)又は一般式(1−2)は、Qに解離し得る水素原子を有し、該水素原子と、下記一般式(1−1)又は一般式(1−2)中に*で記されている−NH−基の水素原子とが共に解離して金属イオンと結合してなり、
さらに、下記一般式(A)で表されるアゾ金属錯体色素であって、
一般式(A)
(L 2− ) n (L’) m (M) r ・(X p+ ) k’´
[式中、L 2− は下記一般式(1−1)又は一般式(1−2)中に含まれる水素原子2つを解離させることにより得られる2価のアゾ色素アニオンを表し、L’は配位子を表し、Mは金属イオン(金属酸化物イオンを含む)を表し、nは1〜4の範囲の整数を表し、mは0〜3の範囲の整数を表し、rは1又は2を表し、X p+ はp価のカチオンであり、pは1〜10の範囲の整数を表し、k’は0<k’≦4の範囲であり一般式(A)中の負電荷をpで割った値を表す。]
下記一般式(3−1)で表されることを特徴とするアゾ金属錯体色素。
一般式(3−1)
- 請求項13又は14記載のアゾ金属錯体色素において、
前記X p+ は、アンモニウムカチオンであることを特徴とするアゾ金属錯体色素。
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JP2001234154A (ja) * | 1999-12-14 | 2001-08-28 | Hayashibara Biochem Lab Inc | 光吸収材とその用途 |
JP2005074852A (ja) * | 2003-09-01 | 2005-03-24 | Mitsui Chemicals Inc | モノメチン錯化合物を用いる光記録媒体 |
JP2006142789A (ja) * | 2004-10-20 | 2006-06-08 | Konica Minolta Photo Imaging Inc | 光情報記録媒体及び情報記録方法 |
JP2009262338A (ja) * | 2008-04-22 | 2009-11-12 | Fujifilm Corp | 光情報記録媒体、情報記録再生方法および新規フタロシアニン誘導体 |
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US8394481B2 (en) | 2013-03-12 |
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JPWO2008038765A1 (ja) | 2010-01-28 |
US20100074082A1 (en) | 2010-03-25 |
WO2008038765A1 (fr) | 2008-04-03 |
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