1-Thia-4-thionia-1H-indene·perchlorate(22482-95-7) ¹H NMR

    Parameter     ppm  Hz

      D(A)         9.98
      D(B)         8.70
      D(C)         9.62
      D(D)         9.03
      D(E)         8.42
       J(A,B)          8.9
       J(A,C)          0.9
       J(A,D)          0.0
       J(A,E)          0.0
       J(B,C)          8.7
       J(B,D)          0.0
       J(B,E)          0.0
       J(C,D)          0.0
       J(C,E)          0.85
       J(D,E)          5.7
     
     BOCCUZZI,F.C. & FOCHI,R. GAZZ.CHIM.ITL. 104, 671 (1974)