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仲山 英之

仲山 英之(なかやま ひでゆき) 教授・理学博士

主な研究と活動

 大気中のCO2濃度の増加が問題になっていますが,CO2は大気中だけでなく海水中にも存在し,大気との間で出入りがあります。濃度としては炭酸飲料水やビールに比べたならば低いですが,海水全体に溶けている量としては大気中の約50倍に達すると考えられています。水に溶けたCO2は,主にHCO3-やCO32-というイオンになって存在しています。これらのイオンは周囲の水分子や他のイオンにどのように取り囲まれて存在しているのでしょうか。このことを調べることは,水に溶けたCO2の振舞いを理解するうえで重要であると考え研究課題にしています。

  • 仲山 英之
キーワード
二酸化炭素、溶存状態、ラマン散乱、光散乱
専門分野
環境物理化学
主な研究課題
CO2 の水溶液中での溶存状態
卒業年月
1980 年3月 東邦大学理学部化学科卒業
1982 年3月 学習院大学大学院自然科学研究科化学専攻博士前期課程修了
学歴・経歴
1982 年 4 月 学習院大学理学部助手
2007 年 4 月 学習院大学理学部助教
2015 年 4 月 帝京科学大学生命環境学部教授
主な著書
  1. 「実験化学講座 基礎編Ⅱ 物理化学上」(共著),日本化学会編,丸善,(2003).
主な論文
  1. K. Omori, H. Nakayama, and K. Ishii, “Diversity of the dimer structure of toluene: exploration by GRRM method”, Chem. Lett. 43 (2014) 1803-1805.
  2. K. Ishii and H. Nakayama, K. Ishii, “Structural relaxation of vapor-deposited molecular glasses and supercooled liquids”. Phys. Chem. Chem. Phys. 16 (2014) 12073-1209.
  3. H.Nakayama, K. Omori, K, Ino-u-e, and K. Ishii, “Molar Volumes of Ethylcyclohexane and Butyronitrile Glasses Resulting from Vapor Deposition: Dependence on Deposition Temperature and Comparison to Alkybenzenes”, J. Phys. Chem. B, 117 (2013) 10311-10319.
  4. A. Nakao, K. Omori, H. Nakayama, K. Ishii, “In Situ Thermal Studies of Vapor-Deposited Molecular Glasses: Anomalous Endothermic Changes Accompanying Structural Relaxation”, AIP Conf. Proc. 1518 (2013) 292-295.
  5. K. Fukasawa, T. Takahashi, T. Matsunami, H. Nakayama, and K. Ishii, “In situ wide angle X-​ray diffraction of vapor-​deposited glasses of small organic molecules”, AIP Conf. Proc. 1518 (2013) 296-299.
  6. K. Ishii, H. Nakayama, and R. Moriyama, “Nonequilibrium and Relaxation in Deeply Supercooled Liquid of Isopropylbenzene Obtained through Glass transition from Vapor-Deposited Glass”, J. Phys. Chem. B, 116 (2012) 935-942.
  7. K. Ishii and H. Nakayama, “Behavior of vapor-deposited molecular glass and supercooled liquid obtained through glass transition from the glass”, Nihon Reoroji Gakkaishi, 40 (2012) 129-136.
  8. S. L. L. M. Ramos, M. Oguni, K. Ishii, and H. Nakayama, “Character of Devitrification, Viewed from Enthalpic Paths, of the Vapor-Deposited Ethylbenzene Glasses”, J. Phys. Chem. B, 115 (2011) 14327-14332.
  9. K. Ishii, Y. Yokoyama, R. Moriyama, and H. Nakayama, “Liquid-Liquid Relaxation in the Supercooled Liquid State of Ethylbenzene: Thermal Studies Using a Prototype DTA Sensor for the Study of Vapor-Deposited Samples”, Chem. Lett. 39 (2010) 958-960.
  10. K. Ishii, R. Shindo, I. Saito, and H. Nakayama, "Solvation of benzene and phenyl halides in supercritical CO2 studied by the interaction-induced CO2 bending Raman band", J. Mol. Liq., 153 (2010) 31-36.
  11. K. Ishii, H. Nakayama, R. Moriyama, Y. Yokoyama, “Behavior of Glass and Supercooled Liquid Alkylbenzenes Vapor-Deposited on Cold Substrates: Toward the Understanding of the Curious Light Scattering Observed in Some Supercooled Liquid States”, Bull. Chem. Soc. Jpn., 82 (2009) 1240-1247.
  12. K. Ishii, H. Nakayama, S. Hirabayashi, R. Moriyama, "Anomalously high-density glass of ethylbenzene prepared by vapor deposition at temperatures close to the glass-transition temperature", Chem. Phys. Lett., 459 (2008) 109-112.
  13. K. Ishii and H. Nakayama, Formation and stability of amorphous molecular systems: As the prototype of functional amorphous organic materials. J. Non-Cryst. Sol., 353 (2007) 1279-1282.
  14. M. Tono-oka, H. Nakayama, and K. Ishii, Conformation equilibrium of 1,2-dichloroethane as a probe for properties of liquid and supercooled CO2. Chem. Lett., 36 (2007) 1126-1127.
  15. H. Nakayama, M. Murai, M. Tono-oka, K. Masuda, and K. Ishii, Enhancement of structural fluctuation in the region connecting two kinds of critical points in temperature-pressure-composition three-dimensional phase diagram: Raman studies of benzene/CO2 binary systems up to supercritical region. J. Phys. Chem. A, 111 (2007) 1410-1318.
  16. K. Ishii, Y. Kobayashi, K. Sakai, and H. Nakayama, "Structural relaxation in amorphous 1,2-dichloroethane studied by trans- formation between confor- mation isomers", J. Phys. Chem. B, 110 (2006) 24827-24833.
  17. K. Ishii, S. Yamamoto, M. Yamamoto, and H. Nakayama, “Relative change of viscosity of water under a transverse magnetic field of 10 T is smaller than 10-4 ”, Chem. Lett. 34 (2005) 874.
  18. K. Ishii, M. Takei, M. Yamamoto, H. Nakayama, “Structural relaxation as a forked road to crystallization and glass transition of vapor-deposited amorphous molecular systems”, Chem. Phys. Lett. 398 (2004) 377.
  19. H. Nakayama, S. Ohta, I. Onozuka, Y. Nakahara, and K. Ishii, “Direct crystallization of amorphous molecular systems prepared by vacuum deposition: X-ray studies of phenyl halides”, Bull. Chem. Soc. Jpn. 77 (2004) 1117-1124.
  20. K. Saitow, H. Nakayama, K. Ishii, and K. Nishikawa, “Attractive and Repulsive Intermolecular Interactions of a Polar Molecule: Short-Range Structure of Neat Supercritical CHF3 Investigated by Raman Spectroscopy”, J. Phys. Chem. A, 108 (2004) 5770-5784.
  21. H. Nakayama, K. Ishikawa, H. Umeyama, and K. Ishii, “Surface undulation appearing by continuous temperature elevation of supercooled liquids on metal substrates”, AIP Conference Proceedings, 708 (2004) 112-113.
  22. K. Ishii, M. Murai, M. Yamamoto, M. Takei, H. Nakayama, “Competition between crystallization and glass-transition processes in binary amorphousmolecular systems”, AIP Conference Proceedings, 708 (2004) 623-626.
  23. K. Ishii, H. Nakayama, T. Okamura, M. Yamamoto, and T. Hosokawa, “Excess volume of vapor-deposited molecular glass and its change due to structural relaxation: studies of light interference in film samples” J. Phys. Chem. B, 107 (2003) 876-881.
  24. K. Saitow, K. Otake, H. Nakayama, K. Ishii, and K. Nishikawa, “Local density enhancement in neat supercritical fluid due to attractive intermolecular interactions”, Chem. Phys. Lett. 368 (2002) 209-214.
  25. M. Murai, H. Nakayama and K. Ishii, “Crystallization and glass transition of chlorobenzene/toluene binary amorphous systems”, J. Thermal Analysis and Calorimetry, 69 (2002) 953-959.
  26. K. Ishii, M. Yoshida, K. Suzuki, H. Sakurai, T. Shimayama, and H. Nakayama, “Density inhomogeneity in amorphous chlorobenzene vapor-deposited on cold substrates”, Bull. Chem. Soc. Jpn. 74 (2001) 435-440.
  27. K. Ishii, T. Okamura, N. Ishikawa, and H. Nakayama, “A novel change of light transmission in supercooled liquid state of ethylbenzene”, Chem. Lett. (2001) 52-53.
  28. H. Nakayama, K. Saitow, M. Sakashita, K. Ishii, “Raman spectral change of neat CO2 across the ridge of density fluctuation in supercritical region”, Chem. Phys. Lett. 320 (2000) 323-327.
  29. H. Nakayama, Y. Minagawa, C. Abematsu, S. Yajima, K. Ishii, ”Pseudo-lattice vibration in smectic liquid crystals: studies on small wave number Raman spectra of 4-alkyl-4’-cyanobiphenyl” Chem. Phys. 252 (2000) 331-337.
  30. H. Nakayama, Y. Minagawa, S. Yajima, T. Hyuga, K. Ishii, “Pseudo-lattice vibration in smectic liquid crystals”, Physica B, 263-264 (1999) 835-838.
  31. H. Nakayama, T. Hosokawa and K. Ishii, “Fluorescence spectra and energy transfer in amorphous naphthalene”, Chem. Phys. Lett. 289 (1998) 275-280.
  32. H. Nakayama, H. Usui and K. Ishii, “Crystallization in amorphous states of small organic molecules: In relation to hypothetical glass-transition temperature”, Progress of Theoretical Physics Supplement, 126 (1997) 115-118.
  33. K. Ishii, H. Nakayama, K. Koyama, Y. Yokoyama, and Y. Ohashi, “Molecular conformation of butanenitrile in gas, liquid, glass, and crystalline states: In relation to the stability of the glass state”, Bull. Chem. Soc. Jpn. 70 (1997) 2085-2091.
  34. H. Nakayama, S. Yajima, T. Yoshida, and K. Ishii, “Relaxational molecular motions in simple organic liquid: studies with low-frequency depolarized Raman spectroscopy”, J. Raman Spectrosc. 28 (1997) 15-22.
  35. K. Ishii, H. Nakayama, T. Yoshida, H. Usui, and K. koyama, “Amorphous state of vacuum-deposited benzene and its crystallization”, Bull. Chem. Soc. Jpn. 69 (1996) 2831-2838.
  36. H. Nakayama and K. Ishii, “Low frequency Raman spectra of disordered molecular systems”, Physica B, 219 & 220 (1996) 517-519.
  37. H. Nakayama, M. Kawahara and K. Ishii, “Structural relaxation in amorphous biphenyl and a new crystalline phase”, Chem. Phys. 178 (1993) 371-375.
  38. K. Ishii, H. Nakayama, K. Tanabe and M. Kawahara, “Structural relaxation in amorphous biphenyl: Raman spectroscopic studies”, Chem. Phys. Lett. 198 (1992) 236-240.
  39. H. Nakayama, M. Kawahara, K. Tanabe and K. Ishii, “Raman studies of anealling processes in glassy films of p-terphenyl”, Mol. Cryst. Liq. Cryst. 218 (1992) 183-188.
  40. H. Nakayama, M. Mukai, R. Hagiwara and K. Ishii, “Anomalous temperature dependence of N-H vibrational state in phenothiazine crystal: existence of weak hydrogen bonds”, J. Phys. Chem. 94 (1990) 4343-4346.
  41. H. Nakayama, K. Ishii and A. Sawada, “Softening of acoustic phonon in the phase transition of the phenothiazine crystal”, Solid State Commun. 67 (1988) 179-182.
  42. H. Nakayama and K. Ishii, “Raman spectra and phase transition of the phenothiazine crystal”, Chem. Phys. 114 (1987) 431-442.
  43. H. Nakayama, K. Ishii, E. Chijiwa, H. Wada and A. Sawada, “Phase transition and ferroelasticity of the phenothiazine crystal”, Solid State Commun. 55 (1985) 59-61.
  44. H. Nakayama and K. Ishii, “Optical and magnetic properties of alkali-(18-crown-6)-TCNQ salts”, Bull. Chem. Soc. Jpn. 58 (1985) 403-404.
所属学会等
日本化学会
日本物理学会
溶液化学研究会
分子科学会


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