| 摘 要： | The ESR spectra of VO(NCS)_n~((2-n) ) complexes have been studied in this paper. It is shown that four complexes ions of various compositions, VO(NCS)~ , VO(NCS)_2, VO(NCS)_3~- and VO(NCS)_4~(2-), are formed in glyeol-water-mixed media. The parameters of the ESR spectra have been determined. We established a linear correlation between the hyperfine coupling constant and the coordination number n. n=117.66-3.41n (gauss). All the stability constants for various complexes formulated as VO(NCS)_n~((2-n) )(n=1,2,3,4) have been calculated from the ESR spectra, log K_1=2.15; log K_2=1.55; log K_3=0.87; log K_4=0.22. K_3and K_4 have not been reported in literature up to now.
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