Detecting Crystalline Nonequilibrium Phases on the Nanometer Scale
The use of Automated electron Diffraction Tomography (ADT) is presented as a novel approach for crystallization studies at the nanometer scale for nonequilibrium phases. Here, ADT was applied to elucidate the structural identity of the recently reported hexagonal morphology of caffeine crystals, which grow only on specific surfaces. Caffeine was crystallized from solution on a specially treated TEM carbon grid. The analysis of ADT data revealed that the lattice parameters of these hexagons match those of the high temperature α- form of caffeine. Furthermore, it was observed that in this hexagonal morphology, the α-form remained stable for a prolonged period of time. The stabilization of hex…
The crystallisation of copper(ii) phenylphosphonates
The crystal structures and syntheses of four different copper(II) phenylphosphonates, the monophenylphosphonates α-, β-, and γ-Cu(O3PC6H5)·H2O (α-CuPhPmH (1) β-CuPhPmH (2) and γ-CuPhPmH (3)), and the diphosphonate Cu(HO3PC6H5)2·H2O (CuPhP2mH (4)), are presented. The compounds were synthesized from solution at room temperature, at elevated temperature, under hydrothermal conditions, and mechanochemical conditions. The structures of α-CuPhPmH (1) and CuPhP2mH (4) were solved from powder X-ray diffraction data. The structure of β-CuPhPmH (2) was solved by single crystal X-ray analysis. The structures were validated by extended X-ray absorption fine structure (EXAFS) and DTA analyses. Disorder …
CCDC 1490687: Experimental Crystal Structure Determination
Related Article: Manuel Wilke, Anke Kabelitz, Tatiana E. Gorelik, Ana Guilherme Buzanich, Uwe Reinholz, Ute Kolb, Klaus Rademann, Franziska Emmerling|2016|Dalton Trans.|45|17453|doi:10.1039/C6DT02904C
CCDC 1490689: Experimental Crystal Structure Determination
Related Article: Manuel Wilke, Anke Kabelitz, Tatiana E. Gorelik, Ana Guilherme Buzanich, Uwe Reinholz, Ute Kolb, Klaus Rademann, Franziska Emmerling|2016|Dalton Trans.|45|17453|doi:10.1039/C6DT02904C
CCDC 1490688: Experimental Crystal Structure Determination
Related Article: Manuel Wilke, Anke Kabelitz, Tatiana E. Gorelik, Ana Guilherme Buzanich, Uwe Reinholz, Ute Kolb, Klaus Rademann, Franziska Emmerling|2016|Dalton Trans.|45|17453|doi:10.1039/C6DT02904C