Electric-Deflection Studies of the Geometry of Some Molecules Containing Cesium

Abstract
The deflection of molecular beams in an inhomogeneous electric field shows that the species Cs2O is polar and therefore nonlinear. The species Cs2SO4, Cs2O2, and Cs2(OH)2 are found to be nonpolar. H2SO4 is polar in agreement with the C 2v heavy‐atom structure deduced previously by Stafford and Chackalackal from infrared spectroscopy.