THE MAGNETIC SUSCEPTIBILITIES AND STRUCTURES OF THE ANHYDROUS ZIRCONIUM TETRAHALIDES
The magnetic susceptibilities of ZrF/sub 4/, ZrCl/sub 4/, ZrBr/sub 4/ and ZrI/sub 4/ have been determined by the Gouy method. All compounds were iound to be diamagnetic as expected, with susceptibility values of: -0.194 x 10-/sup - 6, -0.302 x 10-/sup -6/, -0.261 x 10-/sup -6/, and -0.191 x 10-/sup -6/, respectively. Experimental molar susceptibilities are compared with theoretical calculations based on an approximation to Van Vleck's original expression for polyatomic molecules. The agreement is good for ZrF/sub 4/ and ZrCl/sub 4/, but some discrepancy arises with ZrBr/sub 4/ and ZrI/sub 4/ unless polarization effects are taken into consideration. Determinations also have been made regarding susceptibility vs. temperature for ZrCl/sub 4/ and ZrBr/sub 4/ ranging from 30 to 350 , The results indicate that there is no presence of comp;ex resonance isomers in the solid state. The total evidence presented, though not absolutely conclusive, indicates a tetrahedral arrangemeat for these molecules. (auth)
- Research Organization:
- Loyola Univ. of the South, New Orleans
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-002777
- OSTI ID:
- 4291902
- Journal Information:
- Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 62; ISSN JPCHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
New reduced zirconium halide phases from high temperature reactions
THERMODYNAMIC PROPERTIES OF Zr AND Hf HALIDES