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Conducting neutral gold bisdithiolene complex [Au(dspdt)2]˙.
Mariana F G Velho1, Rafaela A L Silva2, Graça Brotas2
1Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, P-2695-066 Bobadela LRS, Portugal. dbelo@ctn.tecnico.ulisboa.pt malmeida@ctn.tecnico.ulisboa.pt and Instituto de Telecomunicações, Instituto Superior Técnico, Av. Rovisco Pais 1, P-1049-001, Lisboa, Portugal.
Researchers synthesized a neutral gold bisdithiolene complex, [Au(dspdt)2], featuring interacting dimer and trimer chains. This unique structure results in relatively high electrical conductivity at room temperature.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Solid-State Chemistry
Background:
- Gold complexes with dithiolene ligands are known for their interesting electronic properties.
- Previous research has focused on charged dithiolene complexes, with neutral variants being less explored.
Purpose of the Study:
- To synthesize and characterize a novel neutral gold bisdithiolene complex.
- To investigate the structural and electrical properties of the new complex, [Au(dspdt)2].
- To explore the potential of neutral gold dithiolenes in conductive materials.
Main Methods:
- Synthesis of the neutral gold bisdithiolene complex, [Au(dspdt)2].
- Single-crystal X-ray diffraction for structural analysis.
- Electrical conductivity measurements using a four-probe method.
Main Results:
- The complex [Au(dspdt)2] was successfully synthesized and characterized.
- A unique crystal structure featuring interacting dimer and trimer chains was observed.
- Relatively high electrical conductivity of 0.1 S cm-1 was measured at room temperature.
Conclusions:
- [Au(dspdt)2] represents a new class of neutral gold bisdithiolene complexes.
- The observed chain structures are crucial for the material's electrical conductivity.
- This discovery opens avenues for developing new conductive materials based on neutral gold dithiolenes.
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