<報文>イオウ配位白金(II)およびパラジウム(II)錯体とピリジンの反応

概要

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Nickel (II) ethyl xanthate, Ni(EX)_2 and nickel (II) ethyl aerofloat, Ni(EAf)_2 have been reported to form a green octahedral 1 : 2 adducts with pyridine. However, the reactions of Pt(EX)_2,Pd(EX)_2,Pd(EAf)_2 and Pt(EAf)_2 with pyridine have not been reported by the reason that they lack in abilities to expand the coordination numbers. In the present paper, we found the slow changes in the absorption spectra of these complexes in pyridine solution at 25℃. The pseudo-first-order plots were obtained and the relation between the pseudo-first-order rate constant and pyridine concentration were also obtained in the case of xanthates. The products could not be isolated because the trials to crystallize them resulted in failure. However, it may be suggested from the rate law that ethyl xanthate ion acts as a mono-dentateligand in the products, M(EX)_2py_2 and pyridine coordinates to the position where one of the S atoms of ethyl xanthate have occupied.
東北大学の論文
1972-03-25