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 The Best Article of the Month (2004)
The Bulletin of the Chemical Society of Japan, Vol. 77 (No. 1-12)

  2004 Vol. 77 Dec.
2147-2157 “Syn-Effect” in the Conversion of (E)-α,β-Unsaturated Esters into the Corresponding β,γ-Unsaturated Esters and Aldehydes into Silyl Enol Ethers
Best of the Month
Click to enlarge		  S. K. Guha, A. Shibayama, D. Abe, M. Sakaguchi, Y. Ukaji, and K. Inomata
[Full Text PDF(J-STAGE)]

The stereochemistry in the conversion of (E)-α,β-unsaturated esters into β,γ-unsaturated esters and aldehydes into silyl enol ethers was investigated. The Z-selectivity of the products was rationalized by the “syn-effect”, which is attributed primarily to the σ → π* interaction.


  2004 Vol. 77 Nov.
1973-1986 Reaction Rate Spectroscopy for a Catalyzed Reaction of Gases
Best of the Month
Click to enlarge		  Y. Yasuda, A. Matsumoto, and R. Oda
[Full Text PDF(J-STAGE)]

On the basis of the frequency response of every partial pressure of the reactants X and Y and product Z to a sinusoidal variation of the gas space, the flow of Gibbs free energy at elementary steps can be determined by the “reaction rate spectroscopy”.

  2004 Vol. 77 Oct.
1803-1806 A New Application of High-Viscosity Kinetics. An Attempt to Identify a Site of Solvent Reorganizations around a Reactant
Best of the Month
Click to enlarge		  K. Sugita, Y. Goto, M. Ono, K. Yamashita, K. Hayase, T. Takahashi, Y. Ohga, and T. Asano
[Full Text PDF(J-STAGE)]

We proved asynchronism between solvent reorganizations and chemical structural changes in previous kinetic studies at high viscosities. Now we have obtained experimental evidence for spatial selectivity in solvent reorganizations, again by high-viscosity kinetics.


  2004 Vol. 77 Sep.
1627-1634 Characterization of Ag+-Exchanged Zeolite A with H2 and CO Adsorption by FTIR
Best of the Month
Click to enlarge		  P. Wang, S. Yang, J. N. Kondo, K. Domen, and T. Baba
[Full Text PDF(J-STAGE)]

OH groups formed from H2 adsorption on Ag-exchanged (30%) A zeolite were observed at 3619 cm−1, and they were not accessible by CO probe molecules. Thus, the OH groups were considered to locate in the small β-cage.



  2004 Vol. 77 Aug.
1443-1448 Thermodynamics and Kinetics of Formation of Intramolecular Naphthalene Dimer Radical Cation Studied by Near-IR Transient Absorption Spectroscopy
Best of the Month
Click to enlarge		  T. Fushimi, Y. Fujita, H. Ohkita, and S. Ito
[Full Text PDF(J-STAGE)]

Standard enthalpy −Δ H°, rate constant kD, activation energy ED, repulsion energy ER, and charge resonance energy ECR for formation of an intramolecular dimer radical cation in α,ω-dinaphthylalkanes with various alkane chains were quantitatively evaluated from near-IR transient absorption spectroscopy.


  2004 Vol. 77 Jul.
1287-1295 Insertion of Phenylacetylene into [Pt(GeMe3)(SnMe3)(PMe2Ph)2]
Best of the Month
Click to enlarge		  T. Sagawa, R. Tanaka, and F. Ozawa
[Full Text PDF(J-STAGE)]

The insertion of phenylacetylene into the Pt–Sn and Pt–Ge bonds of 1 competes with each other under kinetic conditions, while the resulting 2a is subsequently isomerized to thermodynamically more stable 3a.


  2004 Vol. 77 Jun.
1101-1110 Enhancement of the Antisense Effect of Polysaccharide–Polynucleotide Complexes by Preventing the Antisense Oligonucleotide from Binding to Proteins in the Culture Medium
Best of the Month
Click to enlarge		  M. Mizu, K. Koumoto, T. Anada, R. Karinaga, T. Kimura, T. Nagasaki, S. Shinkai, and K. Sakurai
[Full Text PDF(J-STAGE)]

Phosphorothioate antisense oligonucleotides (AS ODN) can form a complex with schizophyllan in the same manner as phosphodiester oligonucleotides, and the AS ODN bound in the complex reduces the melanoma cell growth more efficiently than that of naked AS ODN.

  2004 Vol. 77 May
921-932 Cause for Unusually Large Thermal Hysteresis of Spin Crossover in [Fe(2-pic)3]Cl2·H2O
Best of the Month
Click to enlarge		  T. Nakamoto, A. Bhattacharjee, and M. Sorai
[Full Text PDF(J-STAGE)]

Calorimetric study disclosed the cause for the unusually large thermal hysteresis (90 K) earlier reported for the spin crossover phase transition in [Fe(2-pic)3]Cl2·H2O. The large thermal hysteresis is only apparent and is caused by the existence of a metastable low-spin phase.

  2004 Vol. 77 Apr.
651-659 Magnetic Resonance Energy and Aromaticity of Polycyclic Aromatic Hydrocarbon Dianions/Dications
Best of the Month
Click to enlarge		  J. Aihara
[Full Text PDF(J-STAGE)]

A new TRE-like energetic quantity was derived from the magnetic response of the π-system and was called a magnetic resonance energy (MRE). MRE was found to be highly correlative with TRE for a variety of PAHs.

  2004 Vol. 77 Mar.
463-475 Synthesis, Crystal Structures, and Electrical Properties of Anion Radical Salts of Novel Electron Acceptors, 2,6-Dicyanomethylene-4-oxo-2,6-dihydrocyclopentadithiophene (CPDT-TCNQ) and Its Diselenophene Analogue (CPDS-TCNQ), Having Three Electron-Withdrawing Groups
Best of the Month
Click to enlarge		  S. Tarutani and K. Takahashi
[Full Text PDF(J-STAGE)]

Anion radical salts of CPDT-TCNQ and CPDS-TCNQ have an extremely one-dimensional electronic structure along the stacking direction, although rigid and tight two-dimensional networks are constructed in the crystal structures.

  2004 Vol. 77 Feb.
259-268 Effects of HMPA on the Structure and Reactivity of the Lithium Enolate of Cyclopentanone in THF: The Dimer is Responsible for Alkylation and Proton Exchange Reactions
Best of the Month
Click to enlarge		  M. Suzuki, H. Koyama, and R. Noyori
[Full Text PDF(J-STAGE)]

NMR study indicates that the enolate exists as bis-HMPA coordinated dimer in THF with excess HMPA. Kinetic experiments showed that alkylation proceeds via the dimer with the assistance of HMPA, while proton abstraction occurs without additional HMPA.

  2004 Vol. 77 Jan.
59-72 Dioxygen Reactivity of Copper(I) Complexes with Tetradentate Tripodal Ligands Having Aliphatic Nitrogen Donors: Synthesis, Structures, and Properties of Peroxo and Superoxo Complexes
Best of the Month
Click to enlarge		  K. Komiyama, H. Furutachi, S. Nagatomo, A. Hashimoto, H. Hayashi, S. Fujinami, M. Suzuki, and T. Kitagawa
[Full Text PDF(J-STAGE)]

Copper(I) complexes with tetradentate tripodal ligands (L) comprised of a tris(aminoethyl)amine (tren) skeleton having sterically bulky substituent(s) reacted with dioxygen at low temperature to produce superoxocopper(II) and/or trans-(μ-1,2-peroxo)-dicopper(II) complexes depending on the steric bulkiness on the terminal nitrogens and the reaction conditions.

List of
BCSJ Award Article
[2009]
[2008] [2007] [2006]
[2005] [2004] [2003]
[2002] [2001] [2000]

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Vol. 82 (2009)
 No. 1 – No.12

Vol. 81 (2008)
 No. 1 – No.12

Vol. 80 (2007)
 No. 1 – No.12

Vol. 79 (2006)
 No. 1 – No.12

Vol. 78 (2005)
 No. 1 – No.12

Vol. 77 (2004)
 No. 1 – No.12

Vol. 76 (2003)
 No. 1 – No.12

Vol. 75 (2002)
 No. 1 – No. 12

Vol. 74 (2001)
 No. 1 – No.12

Vol. 73 (2000)
 No. 7 – No. 12
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