Germanate with three-dimensional 12 × 12 × 11-ring channels solved by X-ray powder diffraction with charge-flipping algorithm.

@article{Xu2013GermanateWT,
  title={Germanate with three-dimensional 12 × 12 × 11-ring channels solved by X-ray powder diffraction with charge-flipping algorithm.},
  author={Yan Xu and Leifeng Liu and Daniel M. Chevrier and Junliang Sun and Peng Zhang and Jihong Yu},
  journal={Inorganic chemistry},
  year={2013},
  volume={52 18},
  pages={
          10238-44
        }
}
A new open-framework germanate, denoted as GeO-JU90, was prepared by the hydrothermal synthesis method using 1,5-bis(methylpyrrolidinium)pentane dihydroxide as the organic structure-directing agent (SDA). The structure of GeO-JU90 was determined from synchrotron X-ray powder diffraction (XRPD) data using the charge-flipping algorithm. It revealed a complicated framework structure containing 11 Ge atoms in the asymmetric unit. The framework is built of 7-connected Ge7 clusters and additional… 
7 Citations
SU-77: An Open-Framework Germanate Containing 12 × 10 × 10-Ring Channels Solved by Combining Rotation Electron Diffraction and Powder X-ray Diffraction
A novel open-framework germanate, denoted as SU-77, was prepared by hydrothermal synthesis using ethylenediamine as the structure directing agent. The as-synthesized SU-77 is monoclinic with space
Interrupted silicogermanate with 10-ring channels: synthesis and structure determination by combining rotation electron diffraction and powder X-ray diffraction
Silicogermanate (JU110) with an interrupted open-framework has been synthesized by using a hydrothermal method using 1,1′-(1,4-phenylenebis(methylene))bis(1-methylpyrrolidin-1-ium) hydroxide as an
Location of Organic Structure-Directing Agents in Zeolites Using Diffraction Techniques
In this chapter, we delve into the X-ray diffraction techniques that can be used to address the question as to where the organic structure-directing agents (OSDAs) are located in the pores of a
A Germanate with a Collapsible Open-Framework
A novel open-framework germanate, |NC2H8∥N2C6H18|[Ge7O14.5F2]·4H2O denoted SU-65 (SU = Stockholm University), with 24-ring channels and a very low framework density of 8.9 Ge atoms per 1000 A3 was
Application of X-ray Diffraction and Electron Crystallography for Solving Complex Structure Problems.
TLDR
A summary of the advantages and disadvantages of X-ray diffraction (PXRD and SCXRD) and EC (HRTEM and ED) for structure determination is provided and a review of applications ofX-rays diffraction and EC for solving complex structure problems such as peak overlap, impurities, pseudosymmetry and twinning, disordered frameworks, locating guests, aperiodic structures, etc.
A Crystalline Mesoporous Germanate with 48-Ring Channels for CO₂ Separation.
TLDR
A novel mesoporous germanate PKU-17 with 3D 48×16×16-ring channels by introducing two large building units (Ge10 and Ge7 clusters) into the same framework by selecting 2-propanolamine (MIPA) and setting a new record in pore sizes among germanates.
Editorial for the ACS Select collection on solid-state chemistry.
“New materials are the lifeblood of solid-state materials research and device technology. Simply put, new materials are discovered by chemists. Thus, the synthetic chemist especially if s/he

References

SHOWING 1-10 OF 70 REFERENCES
SU-62: Synthesis and Structure Investigation of a Germanate with a Novel Three-Dimensional Net and Interconnected 10- and 14-Ring Channels
A novel 3D open-framework germanate, |N2C4H14|4 [Ge20O41(OH)6]·3H2O (SU-62), was prepared from hydrothermal synthesis using 1,4-diaminobutane as the organic structure directing agent (SDA). The
Hydrothermal Synthesis and Structural Characterization of a New Organically Templated Germanate, Ge10O21(OH)·N4C6H21
A new open-framework germanium oxide Ge10O21(OH)·N4C6H21 has been hydrothermally synthesized at 180 °C for 6 days by using the tris(2-aminoethyl)amine (tren) molecule as a structure-directing agent.
PKU-10: a new 3D open-framework germanate with 13-ring channels.
TLDR
PKU-10 possesses 3D intersected 13-ring channels and presents a new 6-connectedness linkage mode of the Ge(7) cluster, T(3)P(2)O, forming a pcu topological network, which collapses with decomposition of the TMA(+) ions at temperatures higher than 240 °C.
Synthesis and crystal structure of a novel germanate: (NH4)4[(GeO2)3(GeO1.5F3)2].0.67H2O.
TLDR
The novel microporous germanate (NH4)4[(GeO2)3( GeO1.5F3)2].0.67H2O was prepared from an aqueous solution containing germanium dioxide, pyridine, hydrofluoric acid, and 2,6-diaminopyridine as a template and determined by single-crystal X-ray diffraction.
Preparation and characterization of Si modified Ge9 cluster
Open‐framework germanates show interesting pore structures due to their flexible building units. Germanates with different topology built from the Ge9 cluster can be prepared in several amine
An open-framework silicogermanate with 26-ring channels built from seven-coordinated (Ge,Si)10(O,OH)28 clusters.
TLDR
It is the first time that silicon has been successfully introduced in the Ge10 cluster in significant amounts and shows the versatility of the germanate system to adopt defined topologies playing on the connectivity of the clusters following the principles of net decoration and scale chemistry.
Structure and catalytic properties of the most complex intergrown zeolite ITQ-39 determined by electron crystallography.
TLDR
The unique structure of ITQ-39, with a three-dimensional intersecting pairwise 12-ring and 10-ring pore system, makes it a promising catalyst for converting naphtha into diesel fuel, a process of emerging interest for the petrochemical industry.
SU-12: a silicon-substituted ASU- 16 with circular 24-rings and templated by a monoamine
A new silicogermanate, SU-12, |(CH3CH2CH2NH3)3(H2O)2.5|[(Ge6.44Si0.56)O14.5F2], with 24-ring channel systems was synthesized under hydro/solvothermal conditions, and its structure was determined by
...
1
2
3
4
5
...