Syntheses, Crystal Structures, and Luminescence Properties of a Series of Novel Lanthanide Oxalatophosphonates with Two Types of 3D Framework Structures

2010 ◽  
Vol 10 (1) ◽  
pp. 406-413 ◽  
Author(s):  
Lei Liu ◽  
Zhen-Gang Sun ◽  
Na Zhang ◽  
Yan-Yu Zhu ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Luminescence Properties ◽  
3D Framework

Two novel cadmium(ii) carboxyphosphonates with 3D framework structure: synthesis, crystal structures, luminescence and molecular recognition properties

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 79041-79049 ◽  
Author(s):  
Chao Ma ◽  
Cheng-Qi Jiao ◽  
Zhen-Gang Sun ◽  
Yan-Yu Zhu ◽  
Xiao-Wen Zhang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Crystal Structures ◽  
Luminescence Properties ◽  
Framework Structure ◽  
Hydrothermal Conditions ◽  
Structure Synthesis ◽  
3D Framework

Two novel cadmium(ii) carboxyphosphonates with 3D framework structure have been synthesized under hydrothermal conditions. The luminescence properties and molecular recognition properties of the compounds have been investigated.

Effect of solution acidity on the crystallization of polychromates in uranyl-bearing systems: synthesis and crystal structures of Rb2[(UO2)(Cr2O7)(NO3)2] and two new polymorphs of Rb2Cr3O10

2021 ◽  
Vol 236 (1-2) ◽  
pp. 11-21
Author(s):  
Evgeny V. Nazarchuk ◽  
Oleg I. Siidra ◽  
Dmitry O. Charkin ◽  
Stepan N. Kalmykov ◽  
Elena L. Kotova
Keyword(s):  
Crystal Structure ◽  
Aqueous Solutions ◽  
Crystal Structures ◽  
Hydrothermal Treatment ◽  
Ambient Conditions ◽  
Screw Axis ◽  
3D Framework ◽  
Solution Acidity

Abstract Three new rubidium polychromates, Rb2[(UO2)(Cr2O7)(NO3)2] (1), γ-Rb2Cr3O10 (2) and δ-Rb2Cr3O10 (3) were prepared by combination of hydrothermal treatment at 220 °C and evaporation of aqueous solutions under ambient conditions. Compound 1 is monoclinic, P 2 1 / c $P{2}_{1}/c$ , a = 13.6542(19), b = 19.698(3), c = 11.6984(17) Å, β = 114.326(2)°, V = 2867.0(7) Å3, R 1 = 0.040; 2 is hexagonal, P 6 3 / m $P{6}_{3}/m$ , a = 11.991(2), c = 12.828(3) Å, γ = 120°, V = 1597.3(5) Å3, R 1 = 0.031; 3 is monoclinic, P 2 1 / n $P{2}_{1}/n$ , a = 7.446(3), b = 18.194(6), c = 7.848(3) Å, β = 99.953(9)°, V = 1047.3(7) Å3, R 1 = 0.037. In the crystal structure of 1, UO8 bipyramids and NO3 groups share edges to form [(UO2)(NO3)2] species which share common corners with dichromate Cr2O7 groups producing novel type of uranyl dichromate chains [(UO2)(Cr2O7)(NO3)2]2−. In the structures of new Rb2Cr3O10 polymorphs, CrO4 tetrahedra share vertices to form Cr3O10 2− species. The trichromate groups are aligned along the 63 screw axis forming channels running in the ab plane in the structure of 2. The Rb cations reside between the channels and in their centers completing the structure. The trichromate anions are linked by the Rb+ cations into a 3D framework in the structure of 3. Effect of solution acidity on the crystallization of polychromates in uranyl-bearing systems is discussed.

Synthesis, crystal structures and luminescence properties of two metal carboxyphosphonates

2017 ◽  
Vol 249 ◽  
pp. 136-140 ◽  
Author(s):  
Chaonan Wang ◽  
Pingjing Feng ◽  
Jintang Li ◽  
Xuetao Luo
Keyword(s):  
Crystal Structures ◽  
Luminescence Properties
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