Methyltris(5-methyl-2-furyl)phosphonium iodide

    Parameter     ppm  Hz

      D(A)         7.695
      D(B)         6.504
      D(C)         2.494
       J(A,B)          3.618
       J(A,C)          0.498
       J(A,X)          2.230
       J(B,C)         -0.908
       J(B,X)          2.182
       J(C,X)         -0.375
     
     JAKOBSEN,H.J. & BEGTRUP,M. J.MOL.SPECTROSC. 35, 158 (1970)
     THERE IS NO DATA ABOUT THE CHEMICAL SHIFT OF CH3I.