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Showing 1 to 12 of 377 entries
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Template-dependent photochemical reactivity of molecular metal oxides.

Chemistry (Weinheim an der Bergstrasse, Germany)

Tucher J, Peuntinger K, Margraf JT, Clark T, Guldi DM, Streb C.
PMID: 25907798
Chemistry. 2015 Jun 08;21(24):8716-9. doi: 10.1002/chem.201501129. Epub 2015 Apr 23.

A combined experimental and theoretical study shows that the photooxidative activity of two isostructural metal oxide clusters depends on their internal templates. To this end, two halide-templated bismuth vanadium oxide clusters [X(Bi(dmso)3 )2 V12 O33 ](-) (X=Cl(-) , Br(-)...

Dithiafulvenyl-Extended N-Heterotriangulenes and Their Interaction with C.

Chemistry (Weinheim an der Bergstrasse, Germany)

Gliemann BD, Strauss V, Hitzenberger JF, Dral PO, Hampel F, Gisselbrecht JP, Drewello T, Thiel W, Guldi DM, Kivala M.
PMID: 28574611
Chemistry. 2017 Sep 07;23(50):12353-12362. doi: 10.1002/chem.201701625. Epub 2017 Aug 01.

We describe the synthesis as well as the electronic and photophysical characterization of novel N-heterotriangulene derivatives decorated with methoxycarbonyl- and methyl-sulfanyl-substituted dithiafulvenyl moieties. The association of these electron-rich compounds with fullerene C

Probing Supramolecular Interactions between a Crown Ether Appended Zinc Phthalocyanine and an Ammonium Group Appended to a C.

Chemistry (Weinheim an der Bergstrasse, Germany)

Lederer M, Hahn U, Strub JM, Cianférani S, Van Dorsselaer A, Nierengarten JF, Torres T, Guldi DM.
PMID: 26744015
Chemistry. 2016 Feb;22(6):2051-2059. doi: 10.1002/chem.201503315. Epub 2016 Jan 07.

Self-assembly driven by crown ether complexation of zinc phthalocyanines equipped with one 18-crown-6 moiety and fullerenes bearing an ammonium head group afforded a novel donor-acceptor hybrid. In reference experiments, fullerenes containing a Boc-protected amine functionality have been probed. The...

Electroactive carbon nanoforms: a comparative study via sequential arylation and click chemistry reactions.

Nanoscale

Mateos-Gil J, Rodríguez-Pérez L, Moreno Oliva M, Katsukis G, Romero-Nieto C, Herranz MÁ, Guldi DM, Martín N.
PMID: 25488718
Nanoscale. 2015 Jan 21;7(3):1193-200. doi: 10.1039/c4nr04365k.

The reactivity of several carbon nanoforms (CNFs), single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs) and graphene, has been investigated through a combination of arylation and click chemistry Cu(I)-mediated azide-alkyne cycloaddition (CuAAC) reactions. The approach is based on the...

Nanocarbon Hybrids: The Paradigm of Nanoscale Self-Ordering/Self-Assembling by Means of Charge Transfer/Doping Interactions.

The journal of physical chemistry letters

Guldi DM, Costa RD.
PMID: 26282304
J Phys Chem Lett. 2013 May 02;4(9):1489-501. doi: 10.1021/jz4001714. Epub 2013 Apr 17.

The scope of this Perspective is to highlight the potential of nanoscale self-ordering/self-assembling nanocarbons-fullerenes, single-wall carbon nanotubes, and graphene-en route toward novel charge transfer hybrids that unify several functions such as light harvesting, charge separation, and, eventually, catalysis. All...

Hydrogen bonding mediated orthogonal and reversible self-assembly of porphyrin sensitizers onto TiO2 nanoparticles.

Chemical communications (Cambridge, England)

Zeininger L, Lodermeyer F, Costa RD, Guldi DM, Hirsch A.
PMID: 27346702
Chem Commun (Camb). 2016 Jul 07;52(57):8842-5. doi: 10.1039/c6cc03452g.

We report on the orthogonal, highly directional and reversible self-assembly of porphyrins onto TiO2 nanoparticles by means of hydrogen bonding interactions. Unifying the stable covalent surface attachment of tailored, synthesized Hamilton receptors with the advantages of a non-covalent supramolecular...

Subphthalocyanines Axially Substituted with a Tetracyanobuta-1,3-diene-Aniline Moiety: Synthesis, Structure, and Physicochemical Properties.

Journal of the American Chemical Society

Winterfeld KA, Lavarda G, Guilleme J, Sekita M, Guldi DM, Torres T, Bottari G.
PMID: 28322560
J Am Chem Soc. 2017 Apr 19;139(15):5520-5529. doi: 10.1021/jacs.7b01460. Epub 2017 Apr 06.

A 1,1,4,4-tetracyanobuta-1,3-diene (TCBD)-aniline moiety has been introduced, for the first time, at the axial position of two subphthalocyanines (SubPcs) peripherally substituted with hydrogen (H

Driving force dependence of intermolecular electron-transfer reactions of fullerenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Fukuzumi S, Ohkubo K, Imahori H, Guldi DM.
PMID: 12658657
Chemistry. 2003 Apr 04;9(7):1585-93. doi: 10.1002/chem.200390182.

Pulse-radiolytic studies were performed to determine the rate constants of intermolecular electron transfer (k(et)) from fullerenes (C(60), C(76), and C(78)) to a series of arene radical cations in dichloromethane. The one-electron oxidation potentials of the employed arenes-corresponding to the...

Comparison of reorganization energies for intra- and intermolecular electron transfer.

Angewandte Chemie (International ed. in English)

Imahori H, Yamada H, Guldi DM, Endo Y, Shimomura A, Kundu S, Yamada K, Okada T, Sakata Y, Fukuzumi S.
PMID: 12203587
Angew Chem Int Ed Engl. 2002 Jul 02;41(13):2344-7. doi: 10.1002/1521-3773(20020703)41:13<2344::AID-ANIE2344>3.0.CO;2-7.

No abstract available.

Multicomponent redox gradients on photoactive electrode surfaces.

Chemical communications (Cambridge, England)

Guldi DM, Zilbermann I, Anderson G, Li A, Balbinot D, Jux N, Hatzimarinaki M, Hirsch A, Prato M.
PMID: 15010801
Chem Commun (Camb). 2004 Mar 21;(6):726-7. doi: 10.1039/b400027g. Epub 2004 Feb 18.

Redox gradients have been used to tailor the arrangement of photoactive ITO-electrodes at the molecular level.

A new photoactive and highly soluble C(60)-TTF-C(60) dimer: charge separation and recombination.

Organic letters

Segura JL, Priego EM, Martin N, Luo C, Guldi DM.
PMID: 11112633
Org Lett. 2000 Dec 14;2(25):4021-4. doi: 10.1021/ol006645l.

The covalent linkage of two [60]fullerene cores to a tetrathiafulvalene (TTF) donor affords a soluble and photoactive C(60)-TTF-C(60) triad. Spectroscopic and photophysical characterization of the C(60)-TTF-C(60) triad are given. Although the cyclic voltammetry measurements reveal no notable interaction between...

Highly conjugated p-quinonoid pi-extended tetrathiafulvalene derivatives: a class of highly distorted electron donors.

Chemistry (Weinheim an der Bergstrasse, Germany)

Díaz MC, Illescas BM, Martín N, Viruela R, Viruela PM, Ortí E, Brede O, Zilbermann I, Guldi DM.
PMID: 15079847
Chemistry. 2004 Apr 19;10(8):2067-77. doi: 10.1002/chem.200305555.

A new class of pi-extended TTF-type electron donors (11 a-c) has been synthesized by Wittig-Horner olefination of bianthrone (9) with 1,3-dithiole phosphonate esters (10 a-c). In cyclic voltammetry experiments, donors 11 a-c reveal a single, electrochemically irreversible oxidation-yielding the...

Showing 1 to 12 of 377 entries