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Recent Developments in Materials Science. NKS and the design of new materials. Materials Science for Dummies. Tinkertoy computer . Crystal Engineering. Node & spacer Appropriate symmetry Rigid spacer “Complete” coordination sphere “Self-correction” Thermodynamics Kinetics.

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Recent developments in materials science

Recent Developments in Materials Science

NKS and the design of new materials

Brian Moulton



Tinkertoy computer
Tinkertoy computer

NKS 2007


Crystal engineering
Crystal Engineering

  • Node & spacer

    • Appropriate symmetry

    • Rigid spacer

    • “Complete” coordination sphere

  • “Self-correction”

    • Thermodynamics

    • Kinetics

NKS 2007



Nks 2006
NKS 2006

NKS 2007


Nks 20061
NKS 2006

NKS 2007


Nks 20062
NKS 2006

NKS 2007


Nks 20063
NKS 2006

NKS 2007


Amorphous materials
Amorphous Materials?

  • Node & spacer

    • Specific geometries

    • Rigid spacer

    • “Complete” coordination sphere

  • “Self-correction”

    • Thermodynamics

    • Kinetics

NKS 2007


Amorphous materials1
Amorphous Materials?

Mn12O12(CH3COO)16(H2O)4

NKS 2007


Ligand exchange
Ligand Exchange

NKS 2007


Coordination polymer gels
Coordination Polymer Gels

> 95% solvent, by mass

NKS 2007

Chem. Commun., 2007, 2802.


Coordination polymer gels1
Coordination Polymer Gels

NKS 2007

Chem. Commun., 2007, 2802.


Sol gel structure
Sol-gel Structure

NKS 2007

100X optical image


Silica sol gel
Silica sol-gel

NKS 2007

TEM image


Xerogel films
Xerogel (films)

NKS 2007


Xerogel films1
Xerogel (films)

NKS 2007


Aerogels
Aerogels

NKS 2007

Langmuir surface area = 491 g/m2


Aerogels1
Aerogels

NKS 2007


Aerogels2
Aerogels

Log V = C + (D-3)[Log Log(Po/P)]

NKS 2007


Aerogels3
Aerogels

Plot 1

Order 1

Curve 1:

Coefficients:

b[0] 1.9299056529

b[1] -0.4804483923

r ² 0.9967341317

Fractal Dimension = 3 + b1

= 2.52

NKS 2007


Porous coordination polymers
Porous Coordination Polymers

  • Challenges*

    • Cooperative properties / composite materials

    • Thin layer compounds

    • Mesoscale compounds

NKS 2007

*Kitagawa, et al., Angew. Chem. Int. Ed., 2004, 43, 2334-2375


Coordination polymers gels
Coordination Polymers Gels

  • Composite materials

  • Xerogels: thin layer compounds

  • Aerogels: mesoporosity

  • Modular design

  • Processability

  • Multiple synthetic approaches

NKS 2007


Acknowledgements
Acknowledgements

  • Shuangbing Han

  • Brian Luisi

  • Kevin Rowland

  • Brown CAMR

    • SEM

  • IndrekKuloats

    • adsorption isotherms

  • Kate Manley

    • microscopy

  • Arkwright Incorporated of Coventry, R.I. (USA)

    • rheometry

NKS 2007


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