㔘ᒌࢅࢺ࣭ࣈࡊࡒ )3& ࡡ *87 ࡞ࡻࡾ㞹Ꮔ≟ឺよᯊ 㒌❟ኬ㝌∸⌦ࠈ⏛୯ಆ㍔ࠈ‹ཾࠈᆊᮇᾀୌࠈᑹᓞ㞖ஒࠈఫ㔕ࡈࡷ࠾ Electronic states of metal-doped DNA studied by ESR Dept. of Phys., TMU S. Tanaka, K. Mizoguchi, S. Sakamoto, M. Ojima, and S. Sano ࡢࡋࡴ࡞ ࠈ)3& ࡢ⏍∸ࡡ㐿ఎሒࢅࡗ࠾ࡈࡾ㔔ࡼࡎࢆᵋ㏸ࢅࡵࡖࡒ᭯ᶭ㧏ฦᏄ࡚࠵ࡾࠊ㎾ ᖳ )3& ࡡ㞹Ⲭ㍲㏞≁ᛮ࡞㛭ࡌࡾ◂✪┊ࢆ࡞⾔ࢂࡿ࡙࠷ࡾࠉᮅࡓ⤣ୌⓏぜよࡢᚋࡼ ࡿ࡙࠷࠷ࠊ ࡐࡿ࡞ᑊࡊᮇࢡ࣭ࣜࣈ࡚ࡢࠉ*87 86:.) ࢅ⏕࠷࡙ )3& ᅖ᭯ࡡ㞹Ꮔ≟ ឺ࠽ࡻࡦ㸧౮ࡡ㔘ᒌ࢛ࣤࢅࢺ࣭ࣈࡊࡒ )3& ࡡ㞹Ꮔ≟ឺࢅよ᪺ࡌࡾࡆ࡛ࢅ┘Ⓩ࡛ࡊ࡙ ◂✪ࢅ㐅ࡴ࡙࠷ࡾࠊ ◂✪⤊㐛 㸧౮㔘ᒌ 2Q ࢅࢺ࣭ࣈࡊࡒ )3& ࡞ࡗ࠷࡙ Mn 2+ ࠈᮇࢡ࣭ࣜࣈࡢࠉࢦࢢࡡ )3& ࡞㸧౮ࡡ㔘ᒌ 2Q ࢅࢺ࣭ࣈࡊࡒ )3&㸝2Q)3&㸞ࡡ㞹Ꮔ≟ឺ࡞ࡗ࠷࡙ *87ࠉ86:.)ࠉ࠽ࡻࡦ = ⥲ ⺧ ක ฦ ᯊ ࢅ ⏕ ࠷ ࡙ ㄢ ࡙ ࡀ ࡒ ࠊ ࡐ ࡡ ⤎ ᯕ ࠉ 2Q ࢛ ࣤ ࡢ 2Q8"ࡡ≟ឺ࡞࠵ࡽࠉ)3& ࡡሲᇱᑊ㛣࡞㸦GFVH SFLU ࠵ ࡒࡽ࡞㸦ࡗࡡྙ࡚ ḗඔⓏ࡞㒼నࡊ࡙࠷ࡾࡆ࡛ࢂ࠾ࡖ ࡒ㸝+LJ㸞ࠊ ࡱࡒࠉ2Q)3& ࡞ࡢᗐ౪Ꮛᛮ࠵ࡽࠉஜ⇩≟ ឺIU^࡞ࡾ࡛ኬẴ୯࡚ࡡ≟ឺFPGLHQW࡞Ẓ࡙ *87 ⥲ ᖕᗀࡾࡆ࡛ࢂ࠾ࡖࡒ㸝+LJ㸞ࠊࡐࡊ࡙ࠉࡆࡿࡼࡡࢪ࣋ ࢠࢹࣜࡡよᯊ⤎ᯕ࠾ࡼ FPGLHQW ࡢ ,FXVVLFQ ࡛ 1RUHQW_LFQ ࡡ୯㛣ࡡ OLQH VKFSHࠉIU^ ࡢ 1RUHQW_LFQ ᆵࡡ OLQH VKFSH ࢅ ♟ࡌࡆ࡛ࢂ࠾ࡖࡒ+LJࠊࡆࡡ⤎ᯕࡢ FPGLHQW ࡚ࡢ㸦ḗ ඔⓏࠉIU^ ࡚ࡢ㸨ḗඔⓏஹᥦ┞பష⏕഼࠷࡙࠷ࡾࡆ࡛ࢅ Fig.1: Mn-DNA (B-form) ⾪ࡊ࡙࠽ࡽࠉ)3& ࡡᵋ㏸ࡡ 'IRUP ࠾ࡼ &IRUP ࡡን࡛ࢤࣤࢨࢪࢷࣤࢹ㛭౿࡞࠵ ࡾࡆ࡛♟ြࡈࡿࡒࠊࡱࡒࠉ2Q)3& ࡡ 6GFQI*87 ࡚ࡡῺᗐንࡡᐁ㥺ࢅ⾔ࡖࡒ⤎ᯕࠉ FPGLHQW ࡚ࡢῺ࡚ *87 ⥲ᖕࢂࡍ࠾࡞ንࡌࡾࡡ࡞ᑊࡊࠉIU^ ࡚ࡢῺ࡚᛬⃥࡞ቌኬ ࡌࡾࡆ࡛ࢂ࠾ࡖࡒࠊࡆࡡ⤎ᯕࡢࠉ86:.) ࡞ࡻࡾ☚⋙ࡡῺᗐንࡡよᯊ࡞࠽࠷࡙ࠉ (XULH<HLVV Ὼᗐ FPGLHQW ࡚ࡡ0 ࠾ࡼ IU^ ࡚0 ࡛ቌኬࡊࡒࡆ࡛ࠉ࠽ࡻࡦ IU^ ࡚ࡡẒ⇍ῼᏽࡡ⤎ᯕࠉ0 ㎾㎰࡚ࣅ࣭ࢠ⌟ࡿࡒࡆ࡛࡛ྙࢂࡎ࡙⩻࠻ࡾ࡛ࠉ2Q)3& ࡢ IU^ ࡞࠽࠷࡙ཬᙁ☚ᛮ㌹⛛㉫ࡀࡾࡆ࡛♟ြࡈࡿࡒࠊ IU^ .-.- .QWHQVLW^FX ,FXVVLFQ FPGLHQW FPGLHQW LIHFO) IU^ Δ-FPG", 1RUHQW_LFQ Δ-IU^", -, --Δ- Fig.2: Fig.3: Mn-DNA ࡡ ESR ࢪ࣋ࢠࢹࣜ ᗐ࡞ࡻࡾ line shape ࡡን ')3& ᅖ᭯ࡡ☚ᛮ࡞ࡗ࠷࡙ ࠈ᭩㎾ )3& ࡡ☚ᛮ࡞㛭ࡌࡾ◂✪࠾ࡼࠉ࣏ࢠࣞ㡷ᇡ࡞ࢂࡒࡖ࡙ HRKHUHQW HXUUHQW Ὦ ࡿ࡙࠷ࡾ࡛࠷࠹ 3FNFPFH HW FO ࡡࢬࣤࢬ࣭ࢨࣘࢻࣜሒ࿈ ࡈࡿࡒࡡ࡚ࠉᮇࢡ࣭ࣜ ࣈ࡚ࡢࡆࡡ௲࡞㛭ࡊ࡙ࠉࢦࢢࡡ )3& ࢅ⏕࠷࡙᳠ッ ᐁ㥺ࢅ⾔ࡖࡒࠊࡐࡡ⤎ᯕࠉᙴࡼ᰷ᣈ࡛ࡌࡾ ')3& ☚ᛮࠉῺ࡚♟ࡌᖏ☚ᛮࡢ᚜㔖࡞ྺ╌ࡊࡒ㓗⣪ฦ Ꮔさᅄ࡚࠵ࡽࠉ3FNFPFH HW FO ࡡよ㔐࡞ࡢ㟸ᖏ -4 (10 emu) oxy M -7 -1 0 50 100 150 200 250 300 T (K) Fig.4: ࡞ၡṟࡾࡆ࡛᪺ࡼ࠾࡞ࡖࡒࠊ Ȣ-DNA ࡛㓗⣪ฦᏄࡡẒ㍉ ཤ⩻ᩝ⊡ -<+LQNFQI(8HKHQHQGHUJHU3FWXUH &>0FVXPR[20RHLFN8,XHURQ'7HXOHW;9;RONR[);0OLQR[ FQI-'RXHKFLW8HLHQHH 02L_RJXHKL89FQFNF94JF\F-8KLRGFUFFQI-8FNFPRWR5K^V7H[ ' 83FNFPFH2(F_F^RXV&8FHXR52RQRIFQI-'RXHKFLW5K^V7H[ 1HWW -5 OFUJHGFQIJFS ࡡ༖ᑙమࠉ')3& ᅖ᭯ࡡ☚ᛮࡢཬ □ quartz wool + oxygen ○ λ-DNA (10 emu) +LJࠊᮇࢡ࣭ࣜࣈࡡぜよ࡛ࡊ࡙ࡢࠉ')3& ࡢ λ-DNA ⣪ฦᏄࡡ☚ᛮ්࡚⌟ྊ⬗࡚࠵ࡾࡆ࡛ࢂ࠾ࡖࡒ -6 0 M Ὼ࡚♟ࡌᖏ☚ᛮࡢࠉ)3& ࡞ྺ╌ࡊࡒ᚜㔖ࡡ㓗
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