Research output: Contribution to journal › Article › peer-review
Nanoscale hemispheres in novel mixed-valent uranyl chromate(V,VI), (C 3NH 10) 10[(UO 2) 13(Cr 12 5+O 42)(Cr 6+O 4) 6(H 2O) 6](H 2O) 6. / Siidra, Oleg I.; Nazarchuk, Evgeny V.; Petrunin, Anatoly A.; Kayukov, Roman A.; Krivovichev, Sergey V.
In: Inorganic Chemistry, Vol. 51, No. 17, 03.09.2012, p. 9162-9164.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Nanoscale hemispheres in novel mixed-valent uranyl chromate(V,VI), (C 3NH 10) 10[(UO 2) 13(Cr 12 5+O 42)(Cr 6+O 4) 6(H 2O) 6](H 2O) 6
AU - Siidra, Oleg I.
AU - Nazarchuk, Evgeny V.
AU - Petrunin, Anatoly A.
AU - Kayukov, Roman A.
AU - Krivovichev, Sergey V.
PY - 2012/9/3
Y1 - 2012/9/3
N2 - The structure of a novel mixed-valent chromium uranyl compound, (C 3NH 10) 10[(UO 2) 13(Cr 12 5+O 42)(Cr 6+O 4) 6(H 2O) 6](H 2O) 6 (1), obtained by the combination of a hydrothermal method and evaporation from aqueous solutions with isopropylammonium, contains uranyl chromate hemispheres with lateral dimensions of 18.9 × 18.5 Å 2 and a height of about 8 Å. The hemispheres are centered by a UO 8 hexagonal bipyramid surrounded by six dimers of Cr 5+O 5 square pyramids, UO 7 pentagonal bipyramids, and Cr 6+O 4 tetrahedra. The hemispheres are linked into two-dimensional layers so that two adjacent hemispheres are oriented in opposite directions relative to the plane of the layer. From a topological point of view, the hemispheres have the formula U 21Cr 23 and can be considered as derivatives of nanospherical cluster U 26Cr 36 composed of three-, four-, and five-membered rings.
AB - The structure of a novel mixed-valent chromium uranyl compound, (C 3NH 10) 10[(UO 2) 13(Cr 12 5+O 42)(Cr 6+O 4) 6(H 2O) 6](H 2O) 6 (1), obtained by the combination of a hydrothermal method and evaporation from aqueous solutions with isopropylammonium, contains uranyl chromate hemispheres with lateral dimensions of 18.9 × 18.5 Å 2 and a height of about 8 Å. The hemispheres are centered by a UO 8 hexagonal bipyramid surrounded by six dimers of Cr 5+O 5 square pyramids, UO 7 pentagonal bipyramids, and Cr 6+O 4 tetrahedra. The hemispheres are linked into two-dimensional layers so that two adjacent hemispheres are oriented in opposite directions relative to the plane of the layer. From a topological point of view, the hemispheres have the formula U 21Cr 23 and can be considered as derivatives of nanospherical cluster U 26Cr 36 composed of three-, four-, and five-membered rings.
UR - http://www.scopus.com/inward/record.url?scp=84865727923&partnerID=8YFLogxK
U2 - 10.1021/ic301288r
DO - 10.1021/ic301288r
M3 - Article
AN - SCOPUS:84865727923
VL - 51
SP - 9162
EP - 9164
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 17
ER -
ID: 9145009