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Computer-Aided Design of Metal Ion Hosts Benjamin P. Hay, 30 April 2003 Battelle U.S. Department of Energy Pacific Northwest National Laborato

Computer-Aided Design of Metal Ion Hosts Benjamin P. Hay, 30 April 2003 Battelle U.S. Department of Energy Pacific Northwest National Laboratory

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  • Computer-Aided Design of Metal Ion Hosts

    Benjamin P. Hay, 30 April 2003

    Battelle

    U.S. Department of Energy

    Pacific Northwest National Laboratory

  • The DOE Legacy - Radioactive Waste

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Separations

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

    Ion exchange processes also have largescale application at DOE sites. At Hanford, tank waste pretreatment will use ion exchange to remove pertechnetate and cesium prior to vitrification.

  • Sensors

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Medical Applications

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Hosts for metal ions

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Host Design

    Computer-Aided ?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Architecture - scaffolds used to connect sets of binding sites

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Structural effects are often difficult to predict

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • How do we approach this problem?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Electronic structure calculations

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Force field calculations are much, much quicker

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Downside - MM models often require parameterization

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Extending MM3 models for f-element complexes

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • What can we learn by examining host structures?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Binding site geometry in crowns favors large metals

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Sizematch is not sufficient for a good fit

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • 12-crown-4 versus 14-crown-4

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Ligand strain energy

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Binding affinity vs. host strain

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Another example

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Actinide sequestering agents

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • A closer look at the malonamide architecture

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Improved architecture?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Proof in the pudding . . .

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Structural design criteria

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Structural design is a trialanderror process

    Problem: you have to build structures before you can test them.

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • ComputerAided Host Design

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Structure-Based Drug Design

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Structure-based host design?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • HostDesigner Software

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • LINKER algorithm

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Scoring by geometry

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Linking fragment database

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • CnHm for n = 0 - 6 (excluding alkynes, 3-membered rings, and 4-membered rings)

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Dimethylated 5 and 6membered rings

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Selected fusedrings

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Example of a LINKER run

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Validation

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • How did we do?

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Second generation

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • OVERLAY algorithm

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Tetradentate ether macrocycles

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Applications in progress

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

  • Further information

    Benjamin P. Hay, Pacific Northwest National Laboratory, 30 April 2003

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