0000000001306798
AUTHOR
Ana Guilherme Buzanich
showing 8 related works from this author
Al driven peculiarities of local coordination and magnetic properties in single phase Alx CrFeCoNi high entropy alloys
2021
The authors thank the Helmholtz-Zentrum Berlin for the provision of access to synchrotron radiation facilities and allocation of synchrotron radiation at the PM2-VEKMAG, BAMline, and UE46_PGM-1 beamlines of BESSY II at HZB as well as measurement time for magnetometry at HZB CoreLab for Quantum Materials. A. S. acknowledges personal funding from CALIPSOplus project (the Grant Agreement no. 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020). The financial support for the VEKMAG project and the PM2-VEKMAG beamline by the German Federal Ministry for Education and Research (Nos. BMBF 05K10PC2, 05K10WR1, 05K10KE1) and by HZB is cordially acknowledged by all co-author…
The crystallisation of copper(ii) phenylphosphonates
2016
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 …
ChemInform Abstract: Hydrate Networks under Mechanical Stress - A Case Study for Co3(PO4)2·8H2O.
2016
The mechanochemically (ball milling) induced loss of bound H2O in Co3(PO4)2·8H2O is investigated together with an associated phase transition and its kinetics by powder synchrotron XRD and quantitative IR spectroscopy.
Hydrate Networks under Mechanical Stress – A Case Study for Co 3 (PO 4 ) 2 ·8H 2 O
2016
The nature of the bound water in solids with hydrogen-bonded networks depends not only on temperature and pressure but also on the nature of the constituents. The collapse and reorientation of these network structures determines the stability of hydrated solids and transitions to other crystalline or amorphous phases. Here, we study the mechanochemically induced loss of bound water in Co₃(PO₄)₂·8H₂O and compare this process to the behavior under hydrostatic pressure. The associated phase transition and its kinetics were monitored by X-ray powder diffraction with Synchrotron radiation and quantitative IR spectroscopy. High shearing forces are responsible for the degradation of the hydrogen-b…
Role of Water During Crystallization of Amorphous Cobalt Phosphate Nanoparticles
2016
The transformation of amorphous precursors into crystalline solids and the associated mechanisms are still poorly understood. We illuminate the formation and reactivity of an amorphous cobalt phosphate hydrate precursor and the role of water for its crystallization process. Amorphous cobalt phosphate hydrate nanoparticles (ACP) with diameters of ∼20 nm were prepared in the absence of additives from aqueous solutions at low concentrations and with short reaction times. To avoid the kinetically controlled transformation of metastable ACP into crystalline Co3(PO4)2 × 8 H2O (CPO) its separation must be fast. The crystallinity of ACP could be controlled through the temperature during precipitati…
CCDC 1490687: Experimental Crystal Structure Determination
2016
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
2016
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
2016
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