Abstract
Two new Np(V) malonates, i.e. LiNpO{sub 2}L{center_dot}2H{sub 2} and KNpO{sub 2}L, where L=CH{sub 2}(COO){sub 2}, were synthesized and studied by the methods of absorption spectroscopy, chemical and X-ray phase analyses. It was ascertained, that similar to their chemical analogs with Na{sup +}, NH{sub 4}{sup +} and Cs{sup +} ions in the outer sphere, the compounds mentioned transform into well-crystallized neptunyl(V) compounds of the MNpO{sub 2}CO{sub 3}{center_dot}nH{sub 2}O type on heating in sealed ampoules beneath the layer of the relevant alkali metal or ammonium malonate solution at a temperature higher than 140 Deg C. Under hydrothermal conditions (NpO{sub 2}){sub 2}L{center_dot}4H{sub 2}O does not transform to lower hydrates, and above 135 Deg c it decomposes to form a dark grey amorphous product.
Krot, N N;
Grigor'ev, M S;
Charushnikova, I A
[1]
- RAN, Inst. Fizicheskoj Khimii, Moscow (Russian Federation)
Citation Formats
Krot, N N, Grigor'ev, M S, and Charushnikova, I A.
On the behaviour of Np(V) malonates under hydrothermal conditions; O povedenii malonatov Np(V) v gidrotermal'nykh usloviyakh.
Russian Federation: N. p.,
2004.
Web.
Krot, N N, Grigor'ev, M S, & Charushnikova, I A.
On the behaviour of Np(V) malonates under hydrothermal conditions; O povedenii malonatov Np(V) v gidrotermal'nykh usloviyakh.
Russian Federation.
Krot, N N, Grigor'ev, M S, and Charushnikova, I A.
2004.
"On the behaviour of Np(V) malonates under hydrothermal conditions; O povedenii malonatov Np(V) v gidrotermal'nykh usloviyakh."
Russian Federation.
@misc{etde_20617226,
title = {On the behaviour of Np(V) malonates under hydrothermal conditions; O povedenii malonatov Np(V) v gidrotermal'nykh usloviyakh}
author = {Krot, N N, Grigor'ev, M S, and Charushnikova, I A}
abstractNote = {Two new Np(V) malonates, i.e. LiNpO{sub 2}L{center_dot}2H{sub 2} and KNpO{sub 2}L, where L=CH{sub 2}(COO){sub 2}, were synthesized and studied by the methods of absorption spectroscopy, chemical and X-ray phase analyses. It was ascertained, that similar to their chemical analogs with Na{sup +}, NH{sub 4}{sup +} and Cs{sup +} ions in the outer sphere, the compounds mentioned transform into well-crystallized neptunyl(V) compounds of the MNpO{sub 2}CO{sub 3}{center_dot}nH{sub 2}O type on heating in sealed ampoules beneath the layer of the relevant alkali metal or ammonium malonate solution at a temperature higher than 140 Deg C. Under hydrothermal conditions (NpO{sub 2}){sub 2}L{center_dot}4H{sub 2}O does not transform to lower hydrates, and above 135 Deg c it decomposes to form a dark grey amorphous product.}
journal = []
issue = {2}
volume = {46}
journal type = {AC}
place = {Russian Federation}
year = {2004}
month = {Jul}
}
title = {On the behaviour of Np(V) malonates under hydrothermal conditions; O povedenii malonatov Np(V) v gidrotermal'nykh usloviyakh}
author = {Krot, N N, Grigor'ev, M S, and Charushnikova, I A}
abstractNote = {Two new Np(V) malonates, i.e. LiNpO{sub 2}L{center_dot}2H{sub 2} and KNpO{sub 2}L, where L=CH{sub 2}(COO){sub 2}, were synthesized and studied by the methods of absorption spectroscopy, chemical and X-ray phase analyses. It was ascertained, that similar to their chemical analogs with Na{sup +}, NH{sub 4}{sup +} and Cs{sup +} ions in the outer sphere, the compounds mentioned transform into well-crystallized neptunyl(V) compounds of the MNpO{sub 2}CO{sub 3}{center_dot}nH{sub 2}O type on heating in sealed ampoules beneath the layer of the relevant alkali metal or ammonium malonate solution at a temperature higher than 140 Deg C. Under hydrothermal conditions (NpO{sub 2}){sub 2}L{center_dot}4H{sub 2}O does not transform to lower hydrates, and above 135 Deg c it decomposes to form a dark grey amorphous product.}
journal = []
issue = {2}
volume = {46}
journal type = {AC}
place = {Russian Federation}
year = {2004}
month = {Jul}
}