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Synthesis and characterization of novel gold(III) complexes of asymmetrically aryl-substituted 1,2-dithiolene ligands featuring potential-controlled spectroscopic properties

Synthesis and characterization of novel gold(III) complexes of asymmetrically aryl-substituted 1,2-dithiolene ligands featuring potential-controlled spectroscopic properties
Synthesis and characterization of novel gold(III) complexes of asymmetrically aryl-substituted 1,2-dithiolene ligands featuring potential-controlled spectroscopic properties
The tetrabutylammonium (TBA(+)) salts of square-planar monoanionic gold complexes of the unsymmetrically substituted Ar,H-edt(2-) 1,2-dithiolene ligands (Ar,H-edt(2-) = artethylene-1,2-dithiolato; Ar = phenyl (1), 2-naphthyl (2), and 1-pyrenyl (3(-))) were synthesized and characterized by spectroscopic and electrochemical methods and the corresponding neutral species (1, 2, and 3, respectively) were obtained in CH(2)Cl(2) solution at room temperature by diiodine oxidation. The single-crystal X-ray diffraction structural data collected for (TBA(+))(2), supported by DFT theoretical calculations, are consistent with the ene-1,2-dithiolate form of the ligand and the Au(III) oxidation state. All complexes feature intense near-IR absorptions (at about 1.5 mu m) in their neutral states and Vis-emitting properties in the 400-550 nm range. the energy of which is controlled by the charge of the complex in the case of the 3(-)/3 couple. The spectroscopic and electrochemical features of 1(x-) and 2(x-) (x = 0, 1), both in their cis and trans conformations, were investigated by means of DFT and time-dependent (TD) DFT calculations
1861-471X
n/a-n/a
Ambrosio, Lucia
b1f6dd16-bb07-431b-b140-2e5fcc246b8f
Aragoni, M. Carla
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Arca, Massimiliano
f90b59f6-4dfb-471d-912e-3515e6507165
Devillanova, Francesco A.
a1015716-6d8a-4517-aac8-593b78e91561
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Huth, Susanne L.
b1cb7019-3459-4842-9d38-6db10f67384d
Isaia, Francesco
11f997fe-81a3-4298-bbdc-15e5f2bf18cc
Lippolis, Vito
d9833a14-4aab-4827-a2ba-be818871dcf5
Mancini, Annalisa
da134433-ee68-449c-9d2f-cad90b37a553
Pintus, Anna
d2ae260a-d159-48a7-b000-539e8c19c68e
Ambrosio, Lucia
b1f6dd16-bb07-431b-b140-2e5fcc246b8f
Aragoni, M. Carla
3e73ed7a-2cf7-4f5e-9359-61d6e34a6cd5
Arca, Massimiliano
f90b59f6-4dfb-471d-912e-3515e6507165
Devillanova, Francesco A.
a1015716-6d8a-4517-aac8-593b78e91561
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Huth, Susanne L.
b1cb7019-3459-4842-9d38-6db10f67384d
Isaia, Francesco
11f997fe-81a3-4298-bbdc-15e5f2bf18cc
Lippolis, Vito
d9833a14-4aab-4827-a2ba-be818871dcf5
Mancini, Annalisa
da134433-ee68-449c-9d2f-cad90b37a553
Pintus, Anna
d2ae260a-d159-48a7-b000-539e8c19c68e

Ambrosio, Lucia, Aragoni, M. Carla, Arca, Massimiliano, Devillanova, Francesco A., Hursthouse, Michael B., Huth, Susanne L., Isaia, Francesco, Lippolis, Vito, Mancini, Annalisa and Pintus, Anna (2010) Synthesis and characterization of novel gold(III) complexes of asymmetrically aryl-substituted 1,2-dithiolene ligands featuring potential-controlled spectroscopic properties. Chemistry - An Asian Journal, 5 (6), n/a-n/a. (doi:10.1002/asia.200900690).

Record type: Article

Abstract

The tetrabutylammonium (TBA(+)) salts of square-planar monoanionic gold complexes of the unsymmetrically substituted Ar,H-edt(2-) 1,2-dithiolene ligands (Ar,H-edt(2-) = artethylene-1,2-dithiolato; Ar = phenyl (1), 2-naphthyl (2), and 1-pyrenyl (3(-))) were synthesized and characterized by spectroscopic and electrochemical methods and the corresponding neutral species (1, 2, and 3, respectively) were obtained in CH(2)Cl(2) solution at room temperature by diiodine oxidation. The single-crystal X-ray diffraction structural data collected for (TBA(+))(2), supported by DFT theoretical calculations, are consistent with the ene-1,2-dithiolate form of the ligand and the Au(III) oxidation state. All complexes feature intense near-IR absorptions (at about 1.5 mu m) in their neutral states and Vis-emitting properties in the 400-550 nm range. the energy of which is controlled by the charge of the complex in the case of the 3(-)/3 couple. The spectroscopic and electrochemical features of 1(x-) and 2(x-) (x = 0, 1), both in their cis and trans conformations, were investigated by means of DFT and time-dependent (TD) DFT calculations

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e-pub ahead of print date: 23 April 2010
Published date: 2 June 2010
Organisations: Organic Chemistry: Synthesis, Catalysis and Flow

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Local EPrints ID: 347472
URI: https://eprints.soton.ac.uk/id/eprint/347472
ISSN: 1861-471X
PURE UUID: bfd8a9ed-96ea-46bc-9847-813c8cacd8b6

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Date deposited: 24 Jan 2013 12:02
Last modified: 16 Jul 2019 21:45

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Contributors

Author: Lucia Ambrosio
Author: M. Carla Aragoni
Author: Massimiliano Arca
Author: Francesco A. Devillanova
Author: Susanne L. Huth
Author: Francesco Isaia
Author: Vito Lippolis
Author: Annalisa Mancini
Author: Anna Pintus

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