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Yusuf Hamied Department of Chemistry

 
Portrait of jrn34
Professor of Chemistry

What we do...

We are designing hollow supramolecular capsules or ‘cages’, which can be used to transport cargoes of molecules where we need them. These cages could be used to safely deliver drug therapies, reduce the costs and environmental effects of petroleum refining, and in many other areas. 

Figuring out the rules

We are interested in discovering and developing new ways in which simple building blocks may be induced to self-assemble into complex, functional structures. Our investigations currently focus upon the self-assembly of imine bonds around metal-ion templates, bringing both covalent C=N and coordinative N→Metal bonds into being during the same overall self-assembly process. The structures thus created can rearrange in well-defined ways at both covalent and coordinative linkages. Ongoing projects include:

 

Container Molecules. The diamine and aldehyde shown above self-assemble with iron(II) in water to form a tetrahedral cage. This cage traps guest molecules within its cavity with high selectivity. The cage may be opened and the guest released using different triggers, one of which is a drop in pH. Applications in drug delivery are of interest, as are investigations of changes in the reactivity and behaviour of guest molecules upon encapsulation.

 

Functional Materials. We have recently developed means to create metal-containing conjugated polymers through self-assembly. DFT calculations carried out by Laura Gagliardi and Christopher Cramer suggest that these might conduct electricity. Studies are thus being undertaken to investigate their properties.

Watch Professor Nitschke discuss his research

Take a tour of the Nitschke Lab

Selected Publications

Feature Article: “Metal-organic container molecules through subcomponent self-assembly”, T.K. Ronson, S. Zarra, S.P. Black, J.R. Nitschke, Chem. Commun. 2013, 49, 2476-2490.

“Enantiopure Water-Soluble Fe4L6 Cages: Host-Guest Chemistry and Catalytic Activity”, Jeanne L. Bolliger, Ana M. Belenguer, and Jonathan R. Nitschke, Angew. Chem. Int. Ed. 2013, 52, 7958-7962.

“Aqueous Self-assembly of an Electroluminescent Double-helical Metallo-polymer”, X. de Hatten,  D. Asil, R.H. Friend, J.R. Nitschke,  J. Am. Chem. Soc. 2012, 135, 19170-19178.

“Anion-induced Reconstitution of a Self-assembling System to Express a Chloride-binding Co10L15 Pentagonal Prism”, I.A. Riddell, M.M.J. Smulders, J.K. Clegg, Y.R. Hristova, B. Breiner, J.D. Thoburn, J.R. Nitschke, Nature Chem. 2012, 51, 751-756.

 “White phosphorus is air-stable within a self-assembled tetrahedral capsule” P. Mal, B. Breiner, K. Rissanen and J.R. Nitschke, Science 2009, 324, 1697-1699.

“Systems chemistry: Molecular networks come of age” J.R. Nitschke, Nature 2009, 462, 736-738.

Publications

A ravel alliance
AW Heard, NMA Speakman, JR Nitschke
– Nature Chemistry
(2021)
13,
824
Coordination Cages Selectively Transport Molecular Cargoes Across Liq- uid Membranes
B-NT Nguyen, JD Thoburn, AB Grommet, DJ Howe, TK Ronson, HP Ryan, JL Bolliger, JR Nitschke
– Journal of the American Chemical Society
(2021)
143,
12175
Sterics and Hydrogen Bonding Control Stereochemistry and Self-Sorting in BINOL-Based Assemblies.
Y-Q Zou, D Zhang, TK Ronson, A Tarzia, Z Lu, KE Jelfs, JR Nitschke
– J Am Chem Soc
(2021)
143,
9009
Controlling the shape and chirality of an eight-crossing molecular knot
JP Carpenter, CT McTernan, JL Greenfield, R Lavendomme, TK Ronson, JR Nitschke
– Chem
(2021)
7,
1534
A curved host and second guest cooperatively inhibit the dynamic motion of corannulene
Y Yang, TK Ronson, Z Lu, J Zheng, N Vanthuyne, A Martinez, JR Nitschke
– Nature
(2021)
12,
4079
A Cavity-Tailored Metal-Organic Cage Entraps Gases Selectively in Solution and the Amorphous Solid State
J-L Zhu, D Zhang, TK Ronson, W Wang, L Xu, H-B Yang, JR Nitschke
– Angew Chem Int Ed Engl
(2021)
60,
11789
A Cavity‐Tailored Metal‐Organic Cage Entraps Gases Selectively in Solution and the Amorphous Solid State
J Zhu, D Zhang, TK Ronson, W Wang, L Xu, H Yang, JR Nitschke
– Angewandte Chemie
(2021)
133,
11895
Cages meet gels: Smart materials with dual porosity
I Jahović, Y-Q Zou, S Adorinni, J Nitschke, S Marchesan
– Matter
(2021)
4,
2123
Electrically Induced Mixed Valence Increases the Conductivity of Copper Helical Metallopolymers.
JL Greenfield, D Di Nuzzo, EW Evans, SP Senanayak, S Schott, JT Deacon, A Peugeot, WK Myers, H Sirringhaus, RH Friend, JR Nitschke
– Adv Mater
(2021)
33,
e2100403
Controlling the Shape and Chirality of an Eight-crossing Molecular Knot
JP Carpenter, C McTernan, JL Greenfield, R Lavendomme, TK Ronson, J Nitschke
– Chem
(2021)
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Research Group

Research Interest Groups

Telephone number

01223 336324

Email address

jrn34@cam.ac.uk