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2 article(s) from Herranz, M. Ángeles

Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F₄TCNQ

Raúl García,
M. Ángeles Herranz,
Edmund Leary,
M. Teresa González,
Gabino Rubio Bollinger,
Marius Bürkle,
Linda A. Zotti,
Yoshihiro Asai,
Fabian Pauly,
Juan Carlos Cuevas,
Nicolás Agraït and
Nazario Martín

Beilstein J. Org. Chem. 2015, 11, 1068–1078, doi:10.3762/bjoc.11.120

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Figure 1: Depictions of 9,10-bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene (exTTF) in the (a) neutral for...

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Scheme 1: Synthetic route to the target exTTF-based molecular wire 5.

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Figure 2: Cyclic voltammograms of compound 5 and pristine exTTF (at concentrations of approximately 0.2 mM) u...

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Figure 3: 2D histograms resulting from break junction experiments on an unmodified gold sample (a), OPE3-dith...

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Figure 4: 2D histograms corresponding to compound 5 after exposing a gold substrate to the solution of the co...

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Figure 5: 2D histograms corresponding to compound 5 after exposing a gold substrate to a solution of the comp...

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Figure 6: a) Examples of individual G(z) traces showing clear conductance plateaus. b–e) 2D histograms corres...

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Figure 7: Frontier orbitals of compound 5 in the gas phase.

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Figure 8: Top a) and hollow b) binding geometries of 5 to a gold cluster in metal–molecule–metal junctions.

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Figure 9: Transmission as a function of energy for the top and hollow binding geometries.

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Published 24 Jun 2015

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Thermodynamically stable [4 + 2] cycloadducts of lanthanum-encapsulated endohedral metallofullerenes

Yuta Takano,
Yuki Nagashima,
M. Ángeles Herranz,
Nazario Martín and
Takeshi Akasaka

Beilstein J. Org. Chem. 2014, 10, 714–721, doi:10.3762/bjoc.10.65

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Scheme 1: Synthesis of [4 + 2] adducts of La₂@C₈₀.

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Figure 1: HPLC profiles of the reaction solutions (black) before and (red) after the reaction of La₂@C₈₀ and ...

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Figure 2: MALDI–TOF mass (negative mode) spectra of (a) 3b and (b) 4b, using 1,1,4,4-tetraphenyl-1,3-butadien...

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Figure 3: UV–vis/near-IR absorption spectra of 3b and 4b recorded by the diode array detector of the HPLC app...

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Figure 4: MALDI–TOF mass spectrum (negative mode) of the reaction mixture from La₂@C₈₀ and 1a, using 1,1,4,4-...

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Figure 5: ¹H NMR spectra of (a) the mixture of 3a and 4a in C₂D₂Cl₄ at 248 K, and (b) isolated 4a at 230 K, r...

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Figure 6: HPLC profiles of the mixture of 3a and 4a, (a) after heating in refluxing 1,2-dichlorobenzene and (...

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Figure 7: HPLC profiles of the reaction mixture of 3b and 4b, (black) before and (red) after heating in reflu...

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Figure 8: UV–vis/near-IR absorption spectra of 3b and 4a in toluene.

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Figure 9: Temperature-dependent ¹H NMR spectra of 4a in C₂D₂Cl₄ (left) at 300 MHz, and (right) at 500 MHz for...

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Scheme 2: Synthesis of [4 + 2] adducts of La@C₈₂.

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Figure 10: HPLC profiles of the reaction mixture for 5b. Conditions: column, Buckyprep (Ø 4.6 mm × 250 mm); el...

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Figure 11: MALDI–TOF mass spectra (negative mode) of 5b, using 1,1,4,4-tetraphenyl-1,3-butadiene as matrix.

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Figure 12: Vis–near-IR spectra of 5b, 6 and La@C₈₂ in CS₂.

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Figure 13: ¹H NMR spectrum of [5b]⁻ in acetone-d₆/CS₂ (3/1 = v/v) at 223 K.

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Figure 14: ¹³C NMR spectrum of [5b]⁻ in acetone-d₆/CS₂ (3/1 = v/v).

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Figure 15: HPLC profiles for comparison of the thermal stabilities of (a) 5b and (b) 6 at 30 °C. Conditions: c...

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Published 25 Mar 2014

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Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ

Thermodynamically stable [4 + 2] cycloadducts of lanthanum-encapsulated endohedral metallofullerenes

Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F₄TCNQ