@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008414, author = {宮下, 芳太郎 and Miyashita, Yoshitaro}, month = {}, note = {Compounds of group 6 metals (chromium, molybdenum, and tungsten) are highly interested as substances suited for the appearance of multifunction combined photochemistry, electromagnetic property, and so on. For example a large number of mononuclear and polynuclear chromium ..., 1998}, school = {筑波大学, University of Tsukuba}, title = {Formation and reactivity of S-bridged polynuclear structures involving group 6 metal ions}, year = {1999} }