Fakultät für Chemie - GED@Bi
 
 
Hintergrundbild
Hintergrundbild
Uni von A-Z
  
Universität Bielefeld > Fakultät für Chemie > Arbeitsgruppen > ac3-mitzel > GED@Bi

User Regulations 

Core Facility
Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI)

Faculty of Chemistry – Inorganic and Structural Chemistry  University of Bielefeld   

 

§1 General

The Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI) is a research infra-structure centre located at the University of Bielefeld within the Faculty of Chemistry. It is managed by Prof. Norbert W. Mitzel, Chair of Inorganic and Structural Chemistry.  

§2 Mission 

The Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI) has been established to provide access and service to the scientific community, for the determination of molecular structures of small molecules. This includes gaseous or vaporizable samples for gas electron diffraction work and a range of crystallization techniques for samples which are liquid at ambient temperature preventing standard crystallography methods to be applied.  GED@BI offers electron diffraction measurements of samples provided by collaborators on a state of-the-art instrument and complete data analysis for structure determination including documentation.  GED@BI also offers in-situ crystallization of low melting liquids or gases for structure determination in the solid phase by X-ray crystallography. There is also the possibility of determination of electron density distribution of such samples.  GED@BI maintains and develops the method of gas electron diffraction further in terms of improving instrumentation and continuously improving the methods of data analysis and automation of these procedures.  GED@BI provides access to gas electron diffraction equipment and in-situ crystallization devices for scientists with specialized problems, which need to be solved in close on-site collaboration and construction of dedicated pieces of apparatus.  GED@BI provides training on the techniques to young academics and for interested collaborators.  GED@BI also offers accompanying spectroscopic measurements and quantum-chemical calculations in the context with structure determination of small molecules.

§3 Information 

The Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI) runs a web-page providing information such as

§4 Instrumentation 

The Core Facility Gas Electron Diffraction (GED@BI) operates the following instrumentation:

The Core Facility Gas Electron Diffraction (GED@BI) has access to instrumentation of the Chair of Inorganic and Structural Chemistry and the Faculty of Chemistry in Bielefeld and can offer accompanying measurements, namely various NMR and IR spectro¬me¬ters. 

§5 Quality of Results

The Core Facility Gas Electron Diffraction (GED@BI) has internal standards of quality assurance in terms of measurement precision and data analysis. Experiments are generally directly and individually calibrated in order to guarantee the reliability of the data. The collaborator must contribute to data quality in the sense that sample purity and stability have to be guaranteed. If this is difficult under circumstances given by the nature of the sample, the resulting limitation of reliability of results has to be jointly considered.  

§6 Staff

The Core Facility Gas Electron Diffraction (GED@BI) has staff to provide the offered services:

§7 Service 

The Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI) offers the complete service for the determination of molecular structures of free molecules of gaseous or vaporizable samples. This service includes

These parts of work can be fully provided by the Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI), but it is also possible to arrange alternative forms of collaboration. This is in particular

§8 Costs 

The Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI) is a research infra-structure for fundamental research, primarily intended to provide structural determination service to academic institutions, but is accessible to all potential users including industry. GED@BI is operated as a non-profit financed research infra-structure unit on the basis of full costing.  

It is expected that collaborators contribute to the costs involved in this service in a way that the centre can maintain its operation ability and development. To achieve this the following rules apply.

§9 Priority 

By the nature of the gas-diffraction experiment and analysis dictates that it can be a time-consuming task and collaborators have to allow for that. As a rule of thumb, analysis of the data for simple structure can be done within weeks, while complicated cases will sometimes take considerably longer. The success of in-situ crystallization experiments cannot be predicted exactly, and they are also time-consuming. For this reason they have also to be prioritized.

§10 Safety

Safety during experiments is of highest priority. Therefore collaborators have to provide any known information on safe handling of the compounds.  This applies in particular to 

§11 Good scientific practice 

Both, collaborators and staff of GED@BI, commit themselves to obey the rules of good scientific practice as are outlined in the DFG document “Safeguarding good scientific practice”  (accessible under: http://www.dfg.de/download/pdf/dfg_im_profil/reden_stellungnahmen/download/empfehlung_wiss_praxis_0198.pdf.

This applies in particular to the following points:

The high scientific input in data analysis of gas electron diffraction will in general justify co-authorship of those persons involved in this process. The management of GED@BI will take care that the number of persons involved in experiment and data analysis will be restricted to the scientifically justified number. The will be no co-authorship rights for those, involved in purely technical standard procedures, but instead the right to be mentioned in acknowledgements of publications (e.g. "We would like to acknowledge the assistance of the Core Facility Gas Electron Diffraction and Small Molecule Structures Centre, Bielefeld (GED@BI), Germany". Any deviations from these rules have to find the agreement of all persons involved, those who provide the sample and those who do structural analyses. 

 

     Bielefeld, July 10th 2012            Prof. Norbert W. Mitzel

 

 

Download User Regulations as PDF

 

 

 

 

 

Gerätezentrum gefördert durch die DFG