Keiichiro Ogawa

The Chemical Society of Japan, CSJ, launched its own electronic journal service in 2002 using the J-STAGE system, after long pilot trials that had started on 1989. The electronic journal service achieved a remarkable increase in the visibility of the journals : Chemistry Letters and Bulletin of Chemical Society of Japan got over a million accesses worldwide per year ; both of the number of published papers and rejected papers are increasing ; the contribution to Chemistry Letters from oversea exceeds 50%. In addition, Chemistry Letters attained the position as the fastest-publishing journal...

The Chemical Society of Japan, CSJ, launched its own electronic journal service in 2002 using the J-STAGE system. The service was provided free of charge for the last three years and the two journals got over million accesses worldwide per year in 2004. Starting in 2005 the service has switched to charged. This paper reports on the recent state of development of our journals; the number of access, effects of electronic reviewing system, and the load of online business. Problems of Japanese scholarly publication are also discussed.

The Chemical Society of Japan, CSJ, started e-journal services on J-STAGE for Chemistry Letters and Bulletin of Chemical Society of Japan from 2002. The effect of the e-journalization is remarkable. Both the journals are going to get a million accesses worldwide in 2003. Contribution of papers from outside of Japan is also increasing after the opening of an electronic submission system. On the basis of our success, a perspective on the Japanese e-journal business is given.

Reversible change in color of substances with variation of the temperature is known as thermochromism and has attracted much interest from chemist for a long time. Salicylideneanilines belong to a class of the most popular compounds that show thermochromism in the solid state. We recently succeeded for the first time in the observation of the crystal structure change associated with the thermochromism and in the determination of the structure of the colored form. Furthermore, we discovered that salicylideneanilines are generally thermochromic in the fluid solution of a saturated hydrocarbon...

Origins of the bond distance anomalies observed for the X-ray structures of a series of organic compounds are discussed in terms of molecular motion and reactions in crystals. The unusual shortening of the central bond in stilbene-type compounds has been ascribed to an artifact originated from molecular motion in crystals. The anomalous elongation of the central C - C bond in bi (anthracene-9, 10-dimethylene) photoisomer has been ascribed to an artifact originated from a cycloreversion reaction in crystals.

How to create and use CIF, which is required for submission of papers having the results of crystallographic structure analysis, is illustrated.

It is shown that the ethylene bond in (E)-stilbenes is often observed unusually short by X-ray diffraction. Detailed analyses of the temperature dependent X-rav structures reveal that the short ethylene bond is an artifact caused by a dynamical disorder originating from the large amplitude torsional vibration of the C-Ph bonds, during which the movement of the benzene rings is restrained to be a minimum. Origin of the unusually short ethane bond in the X-ray structures of polyarylethanes is also discussed by a similar model.

Analyses of the X-ray diffraction data of (E) -stilbenes revealed that the X-ray structures of these compounds commonly show an unusually short bond length for the ethylene bond and a strong temperature dependence for the molecular structure. It is concluded that the short ethylene bond is an artifact caused by dynamic averaging originated from the torsional vibration of the C -Ph bonds during which the movement of the benzene rings are restrained minimum. The observed temperature dependence of the molecular structure is ascribed to the slight energy difference between the conformers which ...

Peroxodisulfate oxidations of various organic compounds are surveyed from a synthetic as well as a mechanistic point of view. Literature has been coverd through the beginning of 1983.

Generations, structures, and reactivities of aminyl and ammoniumyl radicals, especially the differences between these radicals, have been surveyed.