# Presentation: 107992

## Encapsulation of Planar Chiral Ruthenium Complexes

**Encapsulation of Planar Chiral Ruthenium Complexes**

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## [Cp*Ru(2-ethylbutadiene)(H2O)Ga4L6]11- 

**[Cp*Ru(2-ethylbutadiene)(H****2****O)********Ga****4****L****6****]****11-**

**2-Ethylbutadiene Gives the Highest Encapsulation Diastereoselectivity**

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**diastereomeric**
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***D. Fiedler, K. N. Raymond, R. G. Bergman, 2003-4***

## Suggestions of Topics for Discussion at Architectures Session

**Suggestions of Topics for Discussion at Architectures Session**

**Redox-coupled or -switchable catalysts**
**New architectures that resist degradation from oxidizing or reducing agents**
**Development of homogeneous catalysts that are stable at high temperature**
**Ways to develop new supramolecular and “nanovessel” catalysts--how to move from binding studies to the development of useful materials; understanding the principles that control catalysis in “active sites” of enzymes and large synthetic molecular systems**
**Use of molecular switches and other nanoscale devices to control catalysts and turn them on and off; how to combine developing sensor technology with catalyst technology**
**Multicomponent and multifunctional catalysis; how to design clusters that approach the catalytic reactivity of metal surfaces; role of interstitial atoms in cluster chemistry**
**Developing new catalysts by attaching homogeneous catalysts to supports; developing better characterization methods for these systems**
**Design of multidentate ligands to allow well-defined surface coordination and catalysis**
**Novel catalyst supports (e.g., nanotubes, specially fabricated silicon)**
**Developing novel methods for synthesizing nanostructured materials to produce catalysts and the reverse: use of catalysts in the production of nanostructured materials**
**Biomimetic catalysis - what can we learn from nature about designing synthetic catalysts that will do what nature can do, but we cannot (e.g., C-H activation that mimics MMO or Cyt P450, methanogenesis...)?**
**Understanding and improving enantioselective surface-catalyzed reactions: surfaces modified with chiral molecules,  inherently chiral surface structures, molecular imprinting of surfaces with chiral reagents**
**Understanding the similarities and differences between the mechanisms of operation of homogeneous and heterogeneous catalysts, and elucidating the source of the differences; developing a common set of themes, concepts and language that will bridge the gap between workers in homogeneous and heterogeneous catalysis**
**Facilities needed to enhance the development of targeted future research activities; new spectroscopic techniques available or envisioned**
**The role of nanoscience in improving our ability to control catalytic reactions and make molecular and atomic scale measurements on operating catalytic systems**

**Robert G. Bergman**