The structure around nitrate ions in concentrated aqueous solutions
- 20 April 1982
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 15 (11) , 2347-2352
- https://doi.org/10.1088/0022-3719/15/11/015
Abstract
The first-order-difference method of neutron diffraction has been applied to a 7.8 molal aqueous solution of sodium nitrate in which isotopic substitutions were made on the nitrate ion. The intramolecular distance is found to be 1.23+or-0.02 AA. There are 1.3+or-0.2 water molecules coordinated axially to the nitrate ion with rND and RNO values of 2.05+or-0.02 and 2.65+or-0.10 AA respectively. A model for the longer-range structures is proposed.Keywords
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