Research output: Contribution to journal › Article › peer-review
Isopropylammonium layered uranyl chromates : Syntheses and crystal structures of [(CH 3) 2CHNH 3] 3[(UO 2) 3(CrO 4) 2O(OH) 3] and[(CH 3) 2CHNH 3] 2[(UO 2) 2(CrO 4) 3(H 2O)]. / Siidra, Oleg I.; Nazarchuk, Evgeny V.; Krivovichev, Sergey V.
In: Zeitschrift fur Anorganische und Allgemeine Chemie, Vol. 638, No. 6, 05.2012, p. 976-981.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Isopropylammonium layered uranyl chromates
T2 - Syntheses and crystal structures of [(CH 3) 2CHNH 3] 3[(UO 2) 3(CrO 4) 2O(OH) 3] and[(CH 3) 2CHNH 3] 2[(UO 2) 2(CrO 4) 3(H 2O)]
AU - Siidra, Oleg I.
AU - Nazarchuk, Evgeny V.
AU - Krivovichev, Sergey V.
PY - 2012/5
Y1 - 2012/5
N2 - Two novel isopropylamine-templated uranyl chromates, [(CH 3) 2CHNH 3] 3[(UO 2) 3(CrO 4) 2O(OH) 3] (1) and [(CH 3) 2CHNH 3] 2[(UO 2) 2(CrO 4) 3(H 2O)] (2) were prepared by hydrothermal method at 100 °C. The compounds were characterized by electron microprobe analysis and X-ray diffraction crystal structure analysis [1: trigonal, P31m, a = 9.646(4), c = 8.469(4) Å, V = 682.4(5) Å 3; 2: monoclinic, P2 1/c, a = 11.309(3), b = 11.465(3), c = 17.055(5) Å, β = 99.150(6)°, V = 2183.2(11) Å 3]. The structure of 1 is based upon trimers of uranyl bipyramids interlinked by CrO 4 tetrahedra to form [(UO 2) 3(CrO 4) 2O(OH) 3] 3- layers, whereas, in the structure of 2, UO 7 and UO 6(H 2O) pentagonal bipyramids are linked through CrO 4 tetrahedra into the [(UO 2) 2(CrO 4) 3(H 2O)] 2- layers. The structures show many similarities to related uranyl selenate compounds, thus providing additional data on similarities and differences between uranyl sulfates, chromates, selenates, and molybdates.
AB - Two novel isopropylamine-templated uranyl chromates, [(CH 3) 2CHNH 3] 3[(UO 2) 3(CrO 4) 2O(OH) 3] (1) and [(CH 3) 2CHNH 3] 2[(UO 2) 2(CrO 4) 3(H 2O)] (2) were prepared by hydrothermal method at 100 °C. The compounds were characterized by electron microprobe analysis and X-ray diffraction crystal structure analysis [1: trigonal, P31m, a = 9.646(4), c = 8.469(4) Å, V = 682.4(5) Å 3; 2: monoclinic, P2 1/c, a = 11.309(3), b = 11.465(3), c = 17.055(5) Å, β = 99.150(6)°, V = 2183.2(11) Å 3]. The structure of 1 is based upon trimers of uranyl bipyramids interlinked by CrO 4 tetrahedra to form [(UO 2) 3(CrO 4) 2O(OH) 3] 3- layers, whereas, in the structure of 2, UO 7 and UO 6(H 2O) pentagonal bipyramids are linked through CrO 4 tetrahedra into the [(UO 2) 2(CrO 4) 3(H 2O)] 2- layers. The structures show many similarities to related uranyl selenate compounds, thus providing additional data on similarities and differences between uranyl sulfates, chromates, selenates, and molybdates.
KW - Amine templated structures
KW - Crystal engineering
KW - Crystal structures
KW - Isomerism
KW - Trinuclear complexes
KW - Uranyl chromates
UR - http://www.scopus.com/inward/record.url?scp=84861838025&partnerID=8YFLogxK
U2 - 10.1002/zaac.201100558
DO - 10.1002/zaac.201100558
M3 - Article
AN - SCOPUS:84861838025
VL - 638
SP - 976
EP - 981
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
SN - 0044-2313
IS - 6
ER -
ID: 9144963