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HdI% e,AEJfgK6/kSlmS7>) no 1990 c$ ESI 6T/!" &&UVWXY hip,Z[qr JEOL-D300 4\ ESI 6/kSlmS7s]< ESI-MS (electrospray ionization/massspectrometry) Ft]<= D^<t]<=u G_`v8w2xS&yzF{aE b|$pF?cAE<= EAde Ru(bpy)3Cl2  ESI U77}P02' Chait &~2SR,AFa 1990 2(II) VV /B(<=t]῍t]`?f\#ug?S`?#8w2xS.h<Aijk'AE
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<Avj TiO2 wo=`G`xE`?E t F$ IyzB(<={h%B(<= ]@<j]=u I%?67G#{aE b|AEF<= |zFh'}~%F

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°¸A'¯±I²F$ !³´%p¢µAE%), r 2 ¹y?,-t]s]
ESI-MS¶·F)#¸¥º»¶F)#EA Ru(II)E¹ºAEhT/56/6·/<=uy?­yp »¸s§ 2 ¹y?¸¥os]'¶ῌ 389 ῌ     !"#$%&' ()*+,-./012 34 56786 ESI-MS - 0129:;   <=>?

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 E  F G  ' H IJKLC*3M'HNOOPQRST& U H== 3V W/XS Y0XS Z[0XS\]'56786 ESI-MS ^
' 34=H0_`' a0129:bcd Gef'a )Ag\]hi=jkl mno]'HZ)]pJ  ESI-MS =Hqrsmno]tuvT' ESI  wxyzR856 Z)]#$%&
{| G}'~- @A ESI-MS s^=  0 W/0J A&056786 #$%& '=ef' KL- 012
/ = ,-.a &]vT cd^ <>4H= 44A KL!  x "V4 1) #$  ¡¢$ £¤¥¦ §¨ © ª%&« '¬ ­®¯KL°±²QR³O´²µ856¶·l J. Mass Spectrom. Soc. Jpn., 40, 277῍281 (1992).
2) '¬ £¤¥¦ ª%&«  ¡¢$ ±²QR³O´²µ- ¸¹º»&L J. MassSpectrom. Soc. Jpn., 40, 301῍305 (1992).
3) R. Arakawa,
Arakawa T. Matsuo, H. Ito, I. Katakuse, K. Nozaki, T. Ohno, and M. Haga, Multiply charged ionsof ruthenium(II), rhodium(III) and cobalt(III) complexes in electrospray ionization mass spectrometry, Org. Mass Spectrom., 29, 289῍294 (1994).
4) R. Arakawa,Arakawa T. Matsuo, K. Nozaki, T. Ohno, and M. Haga, Analysis of multiply charged ions ofruthenium(II) tetranuclear complexes by electrospray ionization mass spectrometry, Inorg. Chem.,
34, 2464῍2467 (1995).
5) R. Arakawa,Arakawa L. Jian, A. Yoshimura, K. Nozaki, T. Ohno, H. Doe, and T. Matsuo, On-line mass
analysis of reaction products by electrospray ionization. Photosubstitution of ruthenium(II) diimine complexes, Inorg. Chem., 34, 3874῍3878 (1995).
6) R. Arakawa,
Arakawa S. Tachiyashiki, and T. Matsuo, Detection of reaction intermediates: photosubstitution of (polypyridine)ruthenium(II) complexes using on-line electrospray mass spectrometry, Anal.
Chem., 67, 4133῍4138 (1995).
7) M. Haga, M. M. Ali, and R. Arakawa,Arakawa Proton-induced switching of electron transfer pathways indendrimer-type tetranuclear RuOs3 complexes, Angew. Chem. Int. Ed., Engl., 35, 76῍78 (1996).
8) R. Arakawa,Arakawa G. Matsubayashi, N. Ohashi, S. Furuuchi, T. Matsuo, M. M. Ali, and M. Haga,
Electrospray and collision-induced dissociation mass analysis of star-burst type tetranuclear
complexes, J. Mass Spectrom., 31, 861῍866 (1996).
9) R. Arakawa,Arakawa S. Mimura, G. Matsubayashi, and T. Matsuo, Photolysis of (diamine)bis(2,2῎bipyridine)ruthenium(II) complexes using on-line electrospray mass spectrometry, Inorg. Chem., 35, 5725῍
5729 (1996).
10) S. Itoh, S. Takayama, R. Arakawa,Arakawa A. Furuta, M. Komatsu, A. Ishida, S. Takamuku, and S.
Fukuzumi, Active site models for galactose oxidase. Electronic e#ect of the thioether group in thenovel organic cofactor, Inorg. Chem., 36, 1407῍1416 (1997).
11) R. Arakawa,
Arakawa F. Matsuda, G. Matsubayashi, and T. Matsuo, Structural analysis of photo-oxidized(ethylenediamine)bis(2,2῎-bipyridine)ruthenium(II) complexes by using on-line electrospray mass
spectrometry of labeled compounds, J. Am. Soc. Mass Spectrom., 8, 713῍717 (1997).
12) K. Yamanari, I. Fukuda, T. Kawamoto, Y. Kushi, A. Fuyuhiro, N. Kubota, T. Fukuo, and R.
Arakawa, Self-assembling synthesis of cyclic tri- and tetranuclear cobalt(III) complexes bridged by
Arakawapurine-6-thione and their characterization by electrospray mass spectrometry and X-ray crystalanalysis, Inorg. Chem., 37, 5611῍5618 (1998).
13) S. Ito, M. Taki, S. Takayama, S. Nagatomo, T. Kitagawa, N. Sakurada, R. Arakawa,
Arakawa and S.
Fukuzumi, Oxidation of benzyl alcohol with Cu(II) and Zn(II) complexes of the phenoxyl radical asa model of the reaction of galactose oxidase, Angew. Chem. Int. Ed., 38, 2774῍2776 (1999).
14) N. Kubota, T. Fukuo, and R. Arakawa,Arakawa Electrospray ionization mass spectrometric analysis ofῌ 390 ῌ15)16)

17)

18)

19)

20)

21)

22)

23)
24)

25)

self-assembled 1,1῎-ferrocenedicarboxylic acid, J. Am. Soc. Mass Spectrom., 10, 557῍560 (1999).
T. Abura, T. Fukuo, S. Shinoda, H. Tsukube, and R. Arakawa,
Arakawa ESI-MS analysis of tetrapyridinium
macrocycle complexation with carboxylic anions, J. Mass Spectrom. Soc. Jpn., 47, 270῍273 (1999).
T. Fukuo, H. Monjushiro, H. Hong, M. Haga, and R. Arakawa,
Arakawa Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry of self-assembled monolayers of ruthenium complexes
on gold, Rapid Comm. Mass Spectrom., 14, 1301῍1306 (2000).
R. Arakawa,Arakawa M. Kobayashi, and T. Ama, Chiral recognition in association between antimony
potassium tartrate and bine cobalt(III) complexes using electrospray ionization mass spectrometry, J. Am. Soc. Mass Spectrom., 11, 804῍808 (2000).
R. Arakawa,Arakawa M. Kobayashi, T. Fukuo, and T. Shiraiwa, Studies on the association of 2thiazolidinecarboxylic acid and antimony potassium tartrate: Chiral recognition and prediction ofabsolute conﬁguration by electrospray ionization mass spectrometry, Rapid Comm. Mass Spectrom., 15, 685῍689 (2001).
R. Arakawa,Arakawa K. Abe, M. Iwai, T. Fukuo, and Y. Nakabayashi, Analysis of photochemical reactionsof bis(1,10-phenanthroline)diamineruthenium(II) complexes by electrospray ionization mass spectrometry, J. Mass Spectrom. Soc. Jpn., 49, 183῍187 (2001).
R. Arakawa,Arakawa A. Sasao, T. Abura, T. Suzuki, and N. Fujitake, Studies of complex formation between
anthraquinones and metal ions by electrospray ionization mass spectrometry, Eur. J. MassSpectrom., 7, 467῍471 (2001).
R. Arakawa,Arakawa K. Abe, T. Abura, and Y. Nakabayashi, Detection of ligand-substitution intermediates
in the photoreactions of bis(2,2-bipyridine)butanediamineruthenium(II) complex using electrospray ionization mass spectrometry, Bull. Chem. Soc. Jpn., 75, 1983῍1989 (2002).
R. Arakawa,Arakawa N. Kubota, T. Fukuo, O. Ishitani, and E. Ando, Study of the ligand substitution
reactions of cis,cis-[(bpy)2(L)RuORu(L῎)(bpy)2]nῌ (L, L῎H2O, OH῍, NH3) using electrospray ionization mass spectrometry and 1H-NMR, Inorg. Chem., 41, 3749῍3754 (2002).
    !"#$%&'"
() J. Mass Spectrom. Soc. Jpn., 51, 477῍480 (2003).
M. AlajarIn, A. Pastor, R. Orenes, J. W. Steed, and R. Arakawa,Arakawa Self-assembly of tris(2-ureidobenzyl)
amines: A new type of capped, capsule-like dimeric aggregates derived from a highly ﬂexible
skeleton, Chem. Eur. J., 10, 1383῍1397 (2004).
R. Arakawa,Arakawa A. Sasao, and N. Sonoda, Electrospray ionization mass spectrometric analysis ofchemical reactions of dissolution of selenium in strongly basic amines, J. Mass Spectrom., 40, 66῍
69 (2005).

῍ῌ1)  *+,-.(II) /012345 ESI-MS, J. Mass Spectrom. Soc. Jpn., 46, 219῍227 (1998).
2)  6789 :;<= >?$"@A(BCDEF (LDI-MS) 5GH5IJ J.
Mass Spectrom. Soc. Jpn., 52, 33῍38 (2004).

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