The structures of 1phenylsulphonylpyrrole, 1phenylsulphonylindole, 4,5,6,7tetra hydro-1pheny Isulphonylindole, and 1,2,3,4-tetrahydro-9-phenylsulphonylcarbazole have been determined by X-ray crystallography. The heterocyclic nitrogen is planar in some and pyramidal in others. A preferred geometry for the PhS0,N unit emerged from the structures; it is compared with available data for sulphonamides.

No abstract

No abstract

Dicyclopentadienyldi-iron tetracarbonyl, Fe2(CO)4(C5:Hs)2, is monoclinic with a = 7-07-4-0.03, b = 12.46~=0.05, c = 7.99+0.04 A, fl = 108 ° 25'±25', Z = 2 and space group t)21/c. The structure has been determined from two-dimensional data estimated visually from Weissenberg photographs taken with Co Ka radiation.

No abstract