STRUCTURE OF CHEMICAL COMPOUNDS. SPECTROSCOPY Hydrogen Bond and Exchange Interaction in the (CuSO 4 )(en) ⋅ 2H 2 O and (CuSO 4 )(en) ⋅ 2D 2 O Organometallic Compounds

angular anisotropy of the effective gfactor of Cu 2+ ions in both compounds show that distortions of the initial structure caused by deuteration are minimum. A comparative analysis of the width of the exchange coupled EPR lines of the two compounds is indicative of a decrease in the exchange parameter in the deuterated sam� ple, which substantiates the participation of Hbonds in exchange interactions in the systems studied.