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Chiral open-framework uranyl molybdates. 1. Topological diversity : Synthesis and crystal structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O). / Krivovichev, Sergey V.; Cahill, Christopher L.; Nazarchuk, Evgeniy V.; Burns, Peter C.; Armbruster, Th; Depmeier, Wulf.

In: Microporous and Mesoporous Materials, Vol. 78, No. 2-3, 01.03.2005, p. 209-215.

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Krivovichev, Sergey V. ; Cahill, Christopher L. ; Nazarchuk, Evgeniy V. ; Burns, Peter C. ; Armbruster, Th ; Depmeier, Wulf. / Chiral open-framework uranyl molybdates. 1. Topological diversity : Synthesis and crystal structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O). In: Microporous and Mesoporous Materials. 2005 ; Vol. 78, No. 2-3. pp. 209-215.

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@article{a32a3e6ab7c746a2944663f90cae0fe5,
title = "Chiral open-framework uranyl molybdates. 1. Topological diversity: Synthesis and crystal structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O)",
abstract = "Crystals of a new framework uranyl molybdate, [(C2H 5)2NH2]2[(UO2) 4(MoO4)5(H2O)](H2O), were synthesized from a solution of UO2(CH3COO)2 · 2H2O, MoO3, diethylamine and HCl in H 2O at 220°C. The structure was studied at -127°C. The compound is hexagonal, space group P6522, a = 11.3612(13), c = 52.698(8){\AA}, V= 5890.7(13){\AA}3, Z =3. The structure has been refined to R1 = 0.050 (wR2 = 0.100; S = 0.985) on the basis of 3103 unique observed reflections. The structure consists of a three-dimensional framework of composition [(UO2) 4(MoO4)5(H2O)]2- that consists of UO7 pentagonal bipyramids that share equatorial corners with MoO4 tetrahedra. The framework contains a three-dimensional system of channels. The first system of channels is parallel to [001] and has the dimensions 7.0 × 7.0 {\AA}, which result in a crystallographic free diameter (effective pore width) of 4.3 × 4.3 {\AA} (based on an oxygen radius of 1.35 {\AA}). Other channels run parallel to [100], [110] and [010] and have dimensions 5.2 × 7.1 {\AA} (giving an effective pore width of 2.5 × 4.4{\AA}). One symmetrically unique [(C2H 5)2NH2]+ cation and H2O molecule reside in the framework cavities. The channels parallel to [001] are chiral and are centered about a 65 screw axis. The uranyl framework with U:Mo = 4:5 in the structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O) represents the third known type of chiral uranyl molybdate framework. Its relationships to the frameworks with U:Mo = 5:7 and 6:7 can be understood in terms of fundamental chains that have related but yet different topological structure.",
keywords = "Chiral, Crystal structure, Nodal representation, Open framework, Uranyl molybdates",
author = "Krivovichev, {Sergey V.} and Cahill, {Christopher L.} and Nazarchuk, {Evgeniy V.} and Burns, {Peter C.} and Th Armbruster and Wulf Depmeier",
year = "2005",
month = mar,
day = "1",
doi = "10.1016/j.micromeso.2004.10.018",
language = "English",
volume = "78",
pages = "209--215",
journal = "Zeolites",
issn = "1387-1811",
publisher = "Elsevier",
number = "2-3",

}

RIS

TY - JOUR

T1 - Chiral open-framework uranyl molybdates. 1. Topological diversity

T2 - Synthesis and crystal structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O)

AU - Krivovichev, Sergey V.

AU - Cahill, Christopher L.

AU - Nazarchuk, Evgeniy V.

AU - Burns, Peter C.

AU - Armbruster, Th

AU - Depmeier, Wulf

PY - 2005/3/1

Y1 - 2005/3/1

N2 - Crystals of a new framework uranyl molybdate, [(C2H 5)2NH2]2[(UO2) 4(MoO4)5(H2O)](H2O), were synthesized from a solution of UO2(CH3COO)2 · 2H2O, MoO3, diethylamine and HCl in H 2O at 220°C. The structure was studied at -127°C. The compound is hexagonal, space group P6522, a = 11.3612(13), c = 52.698(8)Å, V= 5890.7(13)Å3, Z =3. The structure has been refined to R1 = 0.050 (wR2 = 0.100; S = 0.985) on the basis of 3103 unique observed reflections. The structure consists of a three-dimensional framework of composition [(UO2) 4(MoO4)5(H2O)]2- that consists of UO7 pentagonal bipyramids that share equatorial corners with MoO4 tetrahedra. The framework contains a three-dimensional system of channels. The first system of channels is parallel to [001] and has the dimensions 7.0 × 7.0 Å, which result in a crystallographic free diameter (effective pore width) of 4.3 × 4.3 Å (based on an oxygen radius of 1.35 Å). Other channels run parallel to [100], [110] and [010] and have dimensions 5.2 × 7.1 Å (giving an effective pore width of 2.5 × 4.4Å). One symmetrically unique [(C2H 5)2NH2]+ cation and H2O molecule reside in the framework cavities. The channels parallel to [001] are chiral and are centered about a 65 screw axis. The uranyl framework with U:Mo = 4:5 in the structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O) represents the third known type of chiral uranyl molybdate framework. Its relationships to the frameworks with U:Mo = 5:7 and 6:7 can be understood in terms of fundamental chains that have related but yet different topological structure.

AB - Crystals of a new framework uranyl molybdate, [(C2H 5)2NH2]2[(UO2) 4(MoO4)5(H2O)](H2O), were synthesized from a solution of UO2(CH3COO)2 · 2H2O, MoO3, diethylamine and HCl in H 2O at 220°C. The structure was studied at -127°C. The compound is hexagonal, space group P6522, a = 11.3612(13), c = 52.698(8)Å, V= 5890.7(13)Å3, Z =3. The structure has been refined to R1 = 0.050 (wR2 = 0.100; S = 0.985) on the basis of 3103 unique observed reflections. The structure consists of a three-dimensional framework of composition [(UO2) 4(MoO4)5(H2O)]2- that consists of UO7 pentagonal bipyramids that share equatorial corners with MoO4 tetrahedra. The framework contains a three-dimensional system of channels. The first system of channels is parallel to [001] and has the dimensions 7.0 × 7.0 Å, which result in a crystallographic free diameter (effective pore width) of 4.3 × 4.3 Å (based on an oxygen radius of 1.35 Å). Other channels run parallel to [100], [110] and [010] and have dimensions 5.2 × 7.1 Å (giving an effective pore width of 2.5 × 4.4Å). One symmetrically unique [(C2H 5)2NH2]+ cation and H2O molecule reside in the framework cavities. The channels parallel to [001] are chiral and are centered about a 65 screw axis. The uranyl framework with U:Mo = 4:5 in the structure of [(C2H5) 2NH2]2[(UO2)4(MoO 4)5(H2O)](H2O) represents the third known type of chiral uranyl molybdate framework. Its relationships to the frameworks with U:Mo = 5:7 and 6:7 can be understood in terms of fundamental chains that have related but yet different topological structure.

KW - Chiral

KW - Crystal structure

KW - Nodal representation

KW - Open framework

KW - Uranyl molybdates

UR - http://www.scopus.com/inward/record.url?scp=13444270327&partnerID=8YFLogxK

U2 - 10.1016/j.micromeso.2004.10.018

DO - 10.1016/j.micromeso.2004.10.018

M3 - Article

AN - SCOPUS:13444270327

VL - 78

SP - 209

EP - 215

JO - Zeolites

JF - Zeolites

SN - 1387-1811

IS - 2-3

ER -

ID: 36549855