Abstract The attractive properties of layered inorganic materials, which make them suitable for numerous applications in chemical industries and life sciences, originated from their crystalline framework structures. Here, we report a new layered germanate PKU‐21, which was prepared by the hydrothermal synthesis method using 2‐propanolamine (MIPA) as the structure‐directing agent. The structure of PKU‐21 was determined from synchrotron single‐crystal X‐ray diffraction and synchrotron powder X‐ray diffraction data. It reveals a complicated framework structure containing 18 unique Ge atoms in the asymmetric unit. PKU‐21 is the first layered germanate built from both Ge 7 and Ge 10 clusters, following the 3‐dimensional germanate PKU‐17. The preparation and structure of PKU‐21 are discussed in comparison with PKU‐17, which provides new insight into the formation mechanism of germanates. Gas sorption experiments indicate that the layered PKU‐21 sample exhibits a better CO 2 sorption selectivity over N 2 and CH 4 at 298 K than at 273 K, making it a promising candidate for CO 2 separation.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Prosthodontic treatment for patient with hypohidrotic ectodermal dysplasia (HED) is difficult to manage because of the loss of occlusal vertical dimension, abnormal alveolar ridge and anodontia A 20-year-old case with HED was reported. The patient was treated with occlusal reconstruction by a maxillary fixed prosthesis and mandibular telescopic prosthesis. At one-year's follow-up, dentures were well used and occlusal function of the patient returned to normal.
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