Imperial College London


Faculty of Natural SciencesDepartment of Chemistry

Reader in Computational Materials Chemistry



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207AMolecular Sciences Research HubWhite City Campus






BibTex format

author = {Lewis, JEM and Tarzia, A and White, AJP and Jelfs, KE},
doi = {10.1039/c9sc05534g},
journal = {Chemical Science},
pages = {677--683},
title = {Conformational control of Pd2L4 assemblies with unsymmetrical ligands},
url = {},
volume = {11},
year = {2019}

RIS format (EndNote, RefMan)

AB - With increasing interest in the potential utility of metallo-supramolecular architectures for applications as diverse as catalysis and drug delivery, the ability to develop more complex assemblies is keenly sought after. Despite this, symmetrical ligands have been utilised almost exclusively to simplify the self-assembly process as without a significant driving force a mixture of isomeric products will be obtained. Although a small number of unsymmetrical ligands have been shown to serendipitously form well-defined metallo-supramolecular assemblies, a more systematic study could provide generally applicable information to assist in the design of lower symmetry architectures. Pd2L4 cages are a popular class of metallo-supramolecular assembly; research seeking to introduce added complexity into their structure to further their functionality has resulted in a handful of examples of heteroleptic structures, whilst the use of unsymmetrical ligands remains underexplored. Herein we show that it is possible to design unsymmetrical ligands in which either steric or geometric constraints, or both, can be incorporated into ligand frameworks to ensure exclusive formation of single isomers of three-dimensional Pd2L4 metallo-supramolecular assemblies with high fidelity. In this manner it is possible to access Pd2L4 cage architectures of reduced symmetry, a concept that could allow for the controlled spatial segregation of different functionalities within these systems. The introduction of steric directing groups was also seen to have a profound effect on the cage structures, suggesting that simple ligand modifications could be used to engineer structural properties.
AU - Lewis,JEM
AU - Tarzia,A
AU - White,AJP
AU - Jelfs,KE
DO - 10.1039/c9sc05534g
EP - 683
PY - 2019///
SN - 2041-6520
SP - 677
TI - Conformational control of Pd2L4 assemblies with unsymmetrical ligands
T2 - Chemical Science
UR -
UR -!divAbstract
UR -
VL - 11
ER -