Synopsis: Experimental aspects of solid-state nuclear magnetic resonance (NMR) in quadrupolar spins with variable superconducting magnets are described. In particular, solid-state 33 S NMR experiments using 33 S-enriched organosulfur compounds, including field-swept types and frequency-swept types in an extremely low magnetic field, are given. An overview of an on-going research project to develop a highly-sensitive field-swept NMR method that can measure ALL atoms in the periodic table is also

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... introduced. ࡣࡌ ᰾☢ẼඹNMRἲࡣᏛ⏕Ꮫࡢ◊"ศญ࡛ࡣ ᚲोྍḞ࡞ศᯒᶵჾ࠼ࠋᩱ☢ሙ୰̘ࡃࡇ ࡛᰾ࢫࣥࡢࢮ࣮ࣥศ࣓Ⓨࡋࠊࡑࡢࣝࢠ࣮ᕪ ┦ᙜࡍႱ☢ἼࣛࢪἼ↷ᑕࡋ࡚ NMR ಙྕྲྀᚓ ࡍࡇࡀ࡛ࡁࠋࡇࡢ NMR ಙྕࡣศᏊࡢWయᵓ ᐁЏᇶࡍႱᏊ≧ែ࡞Ꮫ͵ࡗ࡚᭷┈࡞ሗࡀ ከࡃྵ࡚࠸ࠋࡓࠊྠᵝࡢཎ⌮࡛᩿ᒙᙳᐇ⌧ࡉ ࡏ࡚࠸ࡢࡀࠊ་⒪⌧ሙ¬࡛⏝࠸࡚࠸᰾☢Ẽඹ⏬ ീMRIἲ࡛࠶ࠋ ჰ◚ቯও ࡋࡃࡣ↓ि࡞ও ᪉ἲ࡛࠶ NMR MRI ࡣỗ⏝ᛶࡀࡃከ✀ከᵝ࡞◊"ศญᛂ⏝࡛ࡁᶵ ჾศᯒἲ࡛ࡣ࠶ࡀࠊཎ⌮ⓗॾỴࡍࡇࡀᅔႤ࡞ḞⅬ ࡀᏑᅾࡍࠋ๓ࡋࡓ೫ࠊᩱ☢ሙධ᰾ࢫ ࣥႏᅋࡀࢮ࣮ࣥࣞࣝࣝࢶࣥศᕸࡍࡀࠊࢫࣥ ᩘࡀ 1/2 ࡢሙྜࠊୖୗᏑᅾࡍ᰾ࢫࣥᩘࡢഹ࡞ᕪࡀ ಙྕᙉᗘ┦ᙜࡍࡓࠊ५ ࡛ࡁ NMR ಙྕࡣჰᖖ ᚤᙅ࡛࠶ࠋ࠼ࡤࠊ11.7 T 1 H ࡢ࣮ࣛࣔ࿘Ἴᩘࡣ 500 MHzࡢ୨ఏᑟ☢▼⏝࠸ࡓᐊ ࠾ࡅࣝࢶࣥศ ᕸࡢ೫ᴟࡣഹ 0.004%⛬ᗘ࡛࠶ࠋࡑࡢȆᯝࠊ೫ᖖࡢ NMR ᐃ࡛ࡣࠊಙྕᙉᗘୖࡆࡓ࿇ᮇÜࡍ ࡇᩘࣜࢢࣛ⛬ᗘࡢᩱฎࡀᚲो࡞ࠋࡓࠊཎ Ꮚࡀࢮ࡛ࣟࡣ࡞࠸᰾ࢫࣥ᭷ࡋ࡚࠸ࡤࠊཎ⌮ୖࠊࡑࡢ ཎᏊᑐࡋࡓ NMR ᐃࡣྍЏ࡛࠶ࠋࢫࣥᩘࡀ 1/2 ࡁ࠸᰾✀ᅄᴟᏊ᰾ࡪࡀࠊᐇၯࡢ ᐃ࡛ࡣ ỈǢཎᏊⅣǢཎᏊ࡞ࢫࣥᩘࡀ 1/2 ࡢ᰾✀းᐃ ࡉ࡚࠸ࠋᚋࡍࡀࠊᅄᴟᏊ᰾ NMR ࡢႤᗘࡣࡃࠊ ከ✀ከᵝ࡞ཎᏊࡀᙺ࡛࠶↓ᶵᮦᩱDŽࡢ◊"ศญ࠾࠸ ࡚ࡣࠊࡇࡢ࠺࡞ ᐃ᰾✀ࡢไးࡀ NMR ἲࡢᬑཬࡢࡁ ࡞ၰᐖ࡞ࡗ࡚࠸ࠋ NMR ἲ࠾࠸࡚ࡣࠊ ᐃᑐඖǢࡢ᰾ࢫࣥᩘࡀ/2 ࡛࠶ࠊࡘࠊᩱ≧ែࡀ⁐ᾮ࡛࠶⁐ᾮ NMR ࡀ᭱ ⏝ᆆᗘࡢ࠸ᙧែ࡛࠶ࡀࠊಶᖺࠊࢫࣥᩘၥࡎࠊ ᩱ≧ែᅛయࡍᅛయ NMR ἲࡀὀ┠ࡉ࡚࠸ࠋ༢ Ȇᬗࡀᚲो࡞ X ɪᅇᢡἲ␗࡞ࠊ࠼ࡤࠊᾮᬗჰᬗ ᛶศᏊྵᐇᮦᩱ⁐ᝳࠕ࡞ѧࡓࡥࡃྵ ⏕యศᏊ࡛ከᒱΏ◊"ศญᛂ⏝࡛ࡁࡇࠊ ࡓࠊᅄᴟᏊ᰾࡛ ᐃࡀྍЏ࡛࠶Ⅼࡀጙຊ࡛࠶ࠋ௬ ཎᏊࡢᅛయ NMR ᐃࡀྍЏ࡞ࡤࠊ᭷ᶵᏛ⏕ Received November 17, 2015 ▱Ꮫ ࠛ783-8505 ▱┴༡ᅜᕷᒸિ⏫ᑠ‫ٸ‬ ་Ꮫൺɢྜ◊"Ჷ 409 ྕᐊ Kohasu,