Original Papers

  1. Solvatochromism Observed in the X-ray Absorption Spectrum of Indole Dissolved in Water,
    S. Tsuru* and M. Nagasaka,
    J. Phys. Chem. A 129, 3020-3031 (2025).
  2. Oxygen K-edge inner-shell calculations of polymers in solutions realized by the extraction of local structures from molecular dynamics simulations,
    M. Nagasaka,* Y. Yao, and K. Mochizuki,
    J. Chem. Phys. 162, 054901 (8 pages) (2025).
  3. Emission enhancement in a luminescent polychlorinated diphenylpyridylmethyl radical through coordination to silver(I),
    T. Mibu,* R. Matsuoka, M. Nagasaka, and T. Kusamoto,*
    Dalton Trans. 54, 2265-2270 (2025).
    Selected as Front cover.
  4. Metal-ligand delocalization of iron and cobalt protoporphyrin complexes in aqueous solutions probed by soft X-ray absorption spectroscopy,
    M. Nagasaka,* S. Tsuru, and Y. Yamada,
    Phys. Chem. Chem. Phys. 26, 23636-23645 (2024).
  5. Salt-specific effect on the solubility and aggregation of 1-butanol in water,
    Y. Yao, M. Nagasaka, and K. Mochizuki,*
    Physica A 647, 129917 (10 pages) (2024).
    Published as special issue “Effective Interactions between Molecules, Proteins, and Colloidal Particles in Liquids: Manifestation of Thermodynamic Stability in Chemical and Biological Systems”.
  6. Probing Isolated Water Molecules in Aqueous Acetonitrile Solutions Using Oxygen K-Edge X-ray Absorption Spectroscopy,
    M. Nagasaka,*
    J. Phys. Chem. Lett. 15, 5165-5170 (2024).
  7. Mechanism of poly(N-isopropylacrylamide) cononsolvency in aqueous methanol solutions explored via oxygen K-edge X-ray absorption spectroscopy,
    M. Nagasaka,* F. Kumaki, Y. Yao, J. Adachi, and K. Mochizuki,
    Phys. Chem. Chem. Phys. 26, 13634-13638 (2024).
    Published as Communication.
  8. Experimental and Theoretical Study for Core Excitation of Firefly Luciferin in Carbon K-edge Spectra,
    Y. Kudo, F. Kumaki, M. Nagasaka, J. Adachi, Y. Noguchi, N. Koga, H. Itabashi, and M. Hiyama,*
    J. Phys. Chem. A 128, 611-617 (2024).
  9. Stacking of Cofacially Stacked Iron Phthalocyanine Dimer on Graphite Achieved High Catalytic CH4 Oxidation Activity Comparable to that of pMMO,
    Y. Yamada,* K. Morita, T. Sugiura, Y. Toyoda, N. Mihara, M. Nagasaka, H. Takaya, K. Tanaka, T. Koitaya, N. Nakatani, H. Ariga-Miwa, S. Takakusagi, Y. Hitomi, T. Kudo, Y. Tsuji, K. Yoshizawa, and K. Tanaka,*
    JACS Au 3, 823-833 (2023).
  10. Operando time-resolved soft X-ray absorption spectroscopy for photoexcitation processes of metal complexes in solutions,
    F. Kumaki, M. Nagasaka,* R. Fukaya, Y. Okano, S. Yamashita, S. Nozawa, S. Adachi, and J. Adachi,*
    J. Chem. Phys. 158, 104201 (7 pages) (2023).
    Published as the JCP Special Topic on In situ and Operando Characterization.
  11. Carbon K-edge X-ray absorption spectra of liquid alcohols from quantum chemical calculations of liquid structures obtained by molecular dynamics simulations,
    M. Nagasaka,*
    J. Chem. Phys. 158, 024501 (7 pages) (2023).
  12. Site selective analysis of water in hydrogen bond network of aqueous dimethyl sulfoxide solutions by oxygen K-edge X-ray absorption spectroscopy,
    M. Nagasaka,*
    J. Mol. Liq. 366, 120310 (7 pages) (2022).
  13. Hydrophobic Cluster Formation in Aqueous Ethanol Solutions Probed by Soft X-ray Absorption Spectroscopy,
    M. Nagasaka,* M. Bouvier, H. Yuzawa, and N. Kosugi,*
    J. Phys. Chem. B 126, 4948-4955 (2022).
    Published as virtual special issue “Hiro-o Hamaguchi Festschrift”.
  14. X-ray Absorption Spectra of Aqueous Cellobiose: Experiment and Theory,
    D. Akazawa, T. Sasaki, M. Nagasaka, and M. Shiga,*
    J. Chem. Phys. 156, 044202 (7 pages) (2022).
  15. Solvent Effects in the Ultraviolet and X-ray Absorption Spectra of Pyridazine in Aqueous Solution,
    S. Tsuru, B. Sharma, M. Nagasaka, and C. Hättig,*
    J. Phys. Chem. A 125, 7198-7206 (2021).
  16. Electrochemical Oxidation Enables Regioselective and Scalable α-C(sp3)-H Acyloxylation of Sulfides,
    H. Wang, M. He, Y. Li, H. Zhang, D. Yang, M. Nagasaka, Z. Lv, Z. Guan, Y. Cao, F. Gong, Z. Zhou, J. Zhu, S. Samanta, A. D. Chowdhury, and A. Lei,*
    J. Am. Chem. Soc. 143, 3628-3637 (2021).
  17. Aqueous-phase behavior of glyoxal and methylglyoxal observed with carbon and oxygen K-edge X-ray absorption spectroscopy,
    G. Michailoudi, J. J. Lin, H. Yuzawa, M. Nagasaka, M. Huttula, N. Kosugi, T. Kurtén, M. Patanen, and N. L. Prisle,*
    Atmos. Chem. Phys. 21, 2881-2894 (2021).
  18. Demonstration of Transmission Mode Soft X-ray NEXAFS Using Third- and Fifth-Order Harmonics of FEL Radiation at SACLA BL1 ,
    H. Iwayama,* M. Nagasaka, I. Inoue, S. Owada, M. Yabashi, and J. R. Harries,
    Appl. Sci. 10, 7852 (7 pages) (2020).
    Published as Special Issue “Ultrafast X-ray Spectroscopies”.
  19. Operando Observations of a Manganese Oxide Electrocatalyst for Water Oxidation using Hard/Tender/Soft X-ray Absorption Spectroscopy ,
    S. Tsunekawa, F. Yamamoto, K.-H. Wang, M. Nagasaka, H. Yuzawa, S. Takakusagi, H. Kondoh, K. Asakura, T. Kawai, and M. Yoshida,*
    J. Phys. Chem. C 124, 23611-23618 (2020).
  20. Quantum Materials Exploration by Sequential Screening Technique of Heteroatomicity,
    T. Tsukamoto, A. Kuzume, M. Nagasaka, T. Kambe, and K. Yamamoto,*
    J. Am. Chem. Soc. 142, 19078-19084 (2020).
  21. Photoelectron based soft x-ray detector for removing high order x rays,
    M. Nagasaka* and H. Iwayama,
    Rev. Sci. Instrum. 91, 083103 (7 pages) (2020).
  22. Soft X-ray absorption spectroscopy in the low-energy region explored using an argon gas window,
    M. Nagasaka,*
    J. Synchrotron Rad. 27, 959-962 (2020).
  23. Microheterogeneity in Aqueous Acetonitrile Solution Probed by Soft X-ray Absorption Spectroscopy,
    M. Nagasaka,* H. Yuzawa, and N. Kosugi,
    J. Phys. Chem. B 124, 1259-1265 (2020).
  24. Laminar flow in microfluidics investigated by spatially-resolved soft X-ray absorption and infrared spectroscopy,
    M. Nagasaka,* H. Yuzawa, N. Takada, M. Aoyama, E. Rühl, and N. Kosugi,
    J. Chem. Phys. 151, 114201 (7 pages) (2019).
  25. Uncovering the Charge Transfer between Carbon Dots and Water by In Situ Soft X-ray Absorption Spectroscopy,
    J. Ren, D. S. Achilleos, R. Golnak, H. Yuzawa, J. Xiao, M. Nagasaka, E. Reisner, and T. Petit,*
    J. Phys. Chem. Lett. 10, 3843-3848 (2019).
  26. Temperature-Dependent Structural Changes in Liquid Benzene,
    M. Nagasaka,* H. Yuzawa, K. Mochizuki, E. Rühl, and N. Kosugi,
    J. Phys. Chem. Lett. 9, 5827-5832 (2018).
  27. Intermolecular Interactions of Pyridine in Liquid Phase and Aqueous Solution Studied by Soft X-ray Absorption Spectroscopy,
    M. Nagasaka,* H. Yuzawa, and N. Kosugi,*
    Z. Phys. Chem. 232, 705-722 (2018).
    Published as Special Issue: Dedicated to Eckart Rühl on the occasion of his 60th birthday.
  28. Reliable absorbance measurement of liquid samples in soft X-ray absorption spectroscopy in transmission mode,
    M. Nagasaka,* H. Yuzawa, T. Horigome, and N. Kosugi,*
    J. Electron Spectrosc. Relat. Phenom. 224, 93-99 (2018).
    Published as The Future of X-ray and Electron Spectroscopies.
  29. Interaction between Water and Alkali Metal Ions and Its Temperature Dependence Revealed by Oxygen K-Edge X-ray Absorption Spectroscopy,
    M. Nagasaka,* H. Yuzawa, and N. Kosugi,
    J. Phys. Chem. B 121, 10957-10964 (2017).
  30. Unusual Water Hydrogen Bond Network around Hydrogenated Nanodiamonds,
    T. Petit,* L. Puskar, T. Dolenko, S. Choudhury, E. Ritter, S. Burikov, K. Laptinskiy, Q. Brzustowski, U. Schade, H. Yuzawa, M. Nagasaka, N. Kosugi, M. Kurzyp, A. Venerosy, H. Girard, J.-C. Arnault, E. Osawa, N. Nunn, O. Shenderova, and E. F. Aziz,
    J. Phys. Chem. C 121, 5185-5194 (2017).
  31. Integration of Active Nickel Oxide Clusters by Amino Acids for Water Oxidation,
    M. Yoshida,* S. Onishi, Y. Mitsutomi, F. Yamamoto, M. Nagasaka, H. Yuzawa, N. Kosugi, and H. Kondoh,
    J. Phys. Chem. C 121, 255-260 (2017).
  32. Impacts of Conformational Geometries in Fluorinated Alkanes,
    T. Brandenburg,* R. Golnak, M. Nagasaka, K. Atak, S. S. N. Lalithambika, N. Kosugi, and E. F. Aziz,*
    Sci. Rep. 6, 31382 (7 pages) (2016).
  33. Development of In-situ Sample Cells for Scanning Transmission X-ray Microscopy,
    T. Ohigashi,* M. Nagasaka, T. Horigome, N. Kosugi, S. M. Rosendahl, and A. P. Hitchcock,
    AIP Conf. Proc. 1741, 050002 (4 pages) (2016).
    Published as Proceedings of the 12th International Conference on Synchrotron Radiation Instrumentation – SRI2015.
  34. Direct Observation of Active Nickel Oxide Cluster in Nickel−Borate Electrocatalyst for Water Oxidation by In Situ O K-edge X-ray Absorption Spectroscopy,
    M. Yoshida,* Y. Mitsutomi, T. Mineo, M. Nagasaka, H. Yuzawa, N. Kosugi, and H. Kondoh,
    J. Phys. Chem. C 119, 19279-19286 (2015).
  35. Probing Interfacial Water on Nanodiamonds in Colloidal Dispersion,
    T. Petit,* H. Yuzawa, M. Nagasaka, R. Yamanoi, E. Osawa, N. Kosugi, and E. F. Aziz,
    J. Phys. Chem. Lett. 6, 2909-2912 (2015).
  36. Fluorination-dependent molecular orbital occupancy in ring-shaped perfluorocarbons,
    T. Brandenburg, T. Petit, A. Neubauer, K. Atak, M. Nagasaka, R. Golnak, N. Kosugi,* and E. F. Aziz,*
    Phys. Chem. Chem. Phys. 17, 18337-18343 (2015).
  37. In Situ Soft X-ray Absorption Spectroscopy Applied to Solid-Liquid Heterogeneous Cyanopyrazine Hydration Reaction on Titanium Oxide Catalyst,
    H. Yuzawa, M. Nagasaka, and N. Kosugi,*
    J. Phys. Chem. C 119, 7738-7745 (2015).
  38. In operando observation system for electrochemical reaction by soft X-ray absorption spectroscopy with potential modulation method,
    M. Nagasaka,* H. Yuzawa, T. Horigome, and N. Kosugi,
    Rev. Sci. Instrum. 85, 104105 (7 pages) (2014).
  39. Structure and Photo-Induced Charge Transfer of Pyridine Molecules Adsorbed on TiO2(110): A NEXAFS and Core-Hole-Clock Study,
    H. Kondoh,* Y. Higashi, M. Yoshida, Y. Monya, R. Toyoshima, K. Mase, K. Amemiya, F. Tsukioka, M. Nagasaka, Y. Iwasawa, H. Orita, K. Mukai, and J. Yoshinobu,
    Electrochemistry 82, 341-345 (2014).
    Selected for Excellent Paper Award and Cutting-edge Analysis of Surfaces and Interfaces and Its Impact in Electrochemistry.
  40. Local Structures of Methanol-Water Binary Solutions Studied by Soft X-ray Absorption Spectroscopy,
    M. Nagasaka, K. Mochizuki, V. Leloup, and N. Kosugi,*
    J. Phys. Chem. B 118, 4388-4396 (2014).
  41. Electrochemical Reaction of Aqueous Iron Sulfate Solutions Studied by Fe L-Edge Soft X-ray Absorption Spectroscopy,
    M. Nagasaka,* H. Yuzawa, T. Horigome, A. P. Hitchcock, and N. Kosugi,
    J. Phys. Chem. C 117, 16343-16348 (2013).
  42. Structures of mixed argon-nitrogen clusters,
    M. Nagasaka,* E. Serdaroglu, R. Flesch, E. Rühl, and N. Kosugi,
    J. Chem. Phys. 137, 214305 (7 pages) (2012).
  43. Structures of small mixed krypton-xenon clusters,
    M. Nagasaka, N. Kosugi,* and E. Rühl,
    J. Chem. Phys. 136, 234312 (7 pages) (2012).
  44. Inner-shell spectroscopy and exchange interaction of Rydberg electrons bound by singly and doubly charged Kr and Xe atoms in small clusters,
    M. Nagasaka, T. Hatsui, H. Setoyama, E. Rühl, and N. Kosugi,*
    J. Electron Spectrosc. Relat. Phenom. 183, 29-35 (2011).
    Published as Electron Spectroscopy Kai Siegbahn Memorial Volume.
  45. Development of a liquid flow cell to measure soft X-ray absorption in transmission mode: A test for liquid water,
    M. Nagasaka, T. Hatsui, T. Horigome, Y. Hamamura, and N. Kosugi,*
    J. Electron Spectrosc. Relat. Phenom. 177, 130-134 (2010).
    Published as Water and Hydrogen Bonds.
  46. Mechanism of Ammonia Formation on Rh(111) Studied by Dispersive Near-Edge X-ray Absorption Fine Structure Spectroscopy,
    M. Nagasaka, H. Kondoh,* K. Amemiya, I. Nakai, T. Shimada, R. Yokota, and T. Ohta,
    J. Phys. Chem. C 114, 2164-2170 (2010).
  47. Mechanism of N + NO Reaction on Rh(111) Surfaces: A precursor-Mediated Reaction,
    I. Nakai, H. Kondoh,* T. Shimada, M. Nagasaka, R. Yokota, T. Katayama, K. Amemiya, H. Orita,* and T. Ohta,
    J. Phys. Chem. C 113, 13257-13265 (2009).
  48. Proton transfer in water-hydroxyl mixed overlayers on Pt(111): Combined approach of laser desorption and spatially-resolved X-ray photoelectron spectroscopy,
    M. Nagasaka, H. Kondoh, K. Amemiya, T. Ohta, and Y. Iwasawa,*
    Surf. Sci. 603, 1690-1695 (2009).
    Published as Special issue of Surface Science dedicated to Prof. Dr. Gerhard Ertl, Nobel-Laureate in Chemistry 2007.
  49. Exchange interaction in Kr 3d excitations of small krypton clusters,
    M. Nagasaka, T. Hatsui, and N. Kosugi,*
    J. Electron Spectrosc. Relat. Phenom. 166-167, 16-20 (2008).
    Published as Clusters and Nanoparticles Studied by Short-Wavelength Radiation.
  50. Proton Transfer in a Two-Dimensional Hydrogen-Bonding Network: Water and Hydroxyl on a Pt(111) Surface,
    M. Nagasaka, H. Kondoh,* K. Amemiya, T. Ohta, and Y. Iwasawa,
    Phys. Rev. Lett. 100, 106101 (4 pages) (2008).
    Selected for Editors’ Suggestions.
  51. CO oxidation reaction on Pt(111) studied by the dynamic Monte Carlo method including lateral interactions of adsorbates,
    M. Nagasaka, H. Kondoh,* I. Nakai, and T. Ohta,
    J. Chem. Phys. 126, 044704 (7 pages) (2007).
    Selected for Virtual Journal of Nanoscale Science & Technology 15(5) (2007).
  52. N+NO Reaction on Rh(111) Surfaces Studied with Fast Near-Edge X-ray Absorption Fine Structure Spectroscopy: Role of NO Dimer as an Extrinsic Precursor,
    I. Nakai, H. Kondoh,* T. Shimada, M. Nagasaka, R. Yokota, K. Amemiya, H. Orita, and T. Ohta,
    J. Phys. Chem. B 110, 25578-25581 (2006).
  53. Structural Study of NO Adsorbed on the Reconstructed Pt(110)-(1×2) Surface with X-ray Photoelectron Diffraction and Near-Edge X-ray Absorption Fine Structure Spectroscopy,
    T. Shimada, H. Kondoh,* M. Iwasaki, I. Nakai, M. Nagasaka, K. Amemiya, H. Orita, and T. Ohta,
    J. Phys. Chem. B 110, 20507-20512 (2006).
  54. Element-selective vertical height determination for an organic monolayer by a scanned-energy photoelectron-yield soft x-ray standing wave technique,
    H. Kondoh,* R. Yokota, K. Amemiya, T. Shimada, I. Nakai, M. Nagasaka, T. Ohta, T. Nakamura, and H. Takenaka,
    Appl. Phys. Lett. 87, 031911 (3 pages) (2005).
  55. Energy-Dispersed Near-Edge X-ray Absorption Fine Structure: a New Technique to Study Dynamic Surface Processes,
    H. Kondoh,* K. Amemiya, I. Nakai, M. Nagasaka, A. Nambu, T. Shimada, T. Yokoyama, and T. Ohta,
    Phys. Scr. T115, 88-92 (2005).
    Published as PROCEEDINGS OF THE 12th X-RAY ABSORPTION FINE STRUCTURE INTERNATIONAL CONFERENCE (XAFS12) 23–27 June 2003, Malmö, Sweden.
  56. Water formation reaction on Pt(111): Role of the proton transfer,
    M. Nagasaka, H. Kondoh, and T. Ohta,*
    J. Chem. Phys. 122, 204704 (6 pages) (2005).
  57. Structural study of hexanethiolate on Au(111) in the ‘striped’ phase,
    T. Shimada, H. Kondoh, I. Nakai, M. Nagasaka, R. Yokota, K. Amemiya, and T. Ohta,*
    Chem. Phys. Lett. 406, 232-236 (2005).
  58. Mechanism of the CO oxidation reaction on O-precovered Pt(111) surfaces studied with near-edge x-ray absorption fine structure spectroscopy,
    I. Nakai, H. Kondoh, K. Amemiya, M. Nagasaka, T. Shimada, R. Yokota, A. Nambu, and T. Ohta,*
    J. Chem. Phys. 122, 134709 (10 pages) (2005).
  59. Oxygen island formation on Pt(111) studied by dynamic Monte Carlo simulation,
    M. Nagasaka, H. Kondoh, I. Nakai, and T. Ohta,*
    J. Chem. Phys. 122, 044715 (6 pages) (2005).
  60. Adsorption structures of NO on Pt(111) studied by the near edge X-ray absorption fine structure spectroscopy,
    P. Zhu, T. Shimada, H. Kondoh, I. Nakai, M. Nagasaka, and T. Ohta,*
    Surf. Sci. 565, 232-242 (2004).
  61. Reaction-path switching induced by spatial-distribution change of reactants: CO oxidation on Pt(111),
    I. Nakai, H. Kondoh, K. Amemiya, M. Nagasaka, A. Nambu, T. Shimada, and T. Ohta,*
    J. Chem. Phys. 121, 5035-5038 (2004).
  62. Water formation reaction on Pt(111): Near edge x-ray absorption fine structure experiments and kinetic Monte Carlo simulations,
    M. Nagasaka, H. Kondoh, K. Amemiya, A. Nambu, I. Nakai, T. Shimada, and T. Ohta,*
    J. Chem. Phys. 119, 9233-9241 (2003).
  63. Oxygen K-edge near edge X-ray absorption fine structures of O and OH overlayers on Pt(111),
    M. Nagasaka, I. Nakai, H. Kondoh, T. Ohta,* and V. Carravetta,
    Chem. Phys. Lett. 375, 419-424 (2003).

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