Synthesis of a Self-Assembled Hg(II)-Dithiocarbamate Metallomacrocycle

This report illustrates a successful mercury-directed self-assembly strategy via the design and synthesis of a new bifunctional bis-dithiocarbamate ligand K2L. This ligand efficiently self-assembles with Hg(II) to afford a novel bimetallic 28-membered macrocycle, Hg2L2. This supramolecular complex p...

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Bibliographic Details
Published in:Crystal growth & design 2014-05, Vol.14 (5), p.2087-2091
Main Authors: Guzmán-Percástegui, Edmundo, Zakharov, Lev N, Alvarado-Rodríguez, José G, Carnes, Matthew E, Johnson, Darren W
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Methods of nanofabrication
Organic compounds
Other materials
Physics
Self-assembly
Specific materials
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:This report illustrates a successful mercury-directed self-assembly strategy via the design and synthesis of a new bifunctional bis-dithiocarbamate ligand K2L. This ligand efficiently self-assembles with Hg(II) to afford a novel bimetallic 28-membered macrocycle, Hg2L2. This supramolecular complex persists as a discrete macrocyclic structure in solution as evidenced by two-dimensional DOSY NMR. The X-ray diffraction analysis confirms the formation of the bimetallic metallomacrocycle where both bis-dithiocarbamate units are asymmetrically bound to the mercury centers. Analysis of noncovalent interactions in the crystalline state reveals very close Hg···Hg intramolecular mercurophilic contacts (≈ 3.3 Å) and the action of C–H···π (chelate) interactions.
ISSN:1528-7483
1528-7505
DOI:10.1021/cg401894h