Tuning the sensitivity of fluorophore–nitroxide radicals

Borozdina, Yulia; Kamm, Valentin; Laquai, Frédéric; Baumgarten, Martin

doi:10.1039/c2jm31390a

Cited by 21 publications

(35 citation statements)

References 30 publications

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“…Pyrene ligand containing pyrazole motif was obtained in the straightforward condensation reaction of 1,3,6,8‐tetrabromopyrene with commercially available pyrazole in the presence of cesium carbonate and copper(I) iodide (Scheme ) …”

Section: Resultsmentioning

confidence: 99%

Comprehensive Study of Mononuclear Osmium Complexes with Various Pyrene Ligands

et al. 2018

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New mononuclear osmium complexes M1-M4 with various NCN-cyclometalating pyrene ligands were synthesized and thoroughly characterized with particular emphasis on the nature of NCN-cyclometalating pyrene ligands on the properties of target compounds. Structural properties were achieved by using the theoretical studies (DFT). Moreover, spectroscopic and theoretical studies (TD-DFT) show the character of transi-[a] 5117 Scheme 1. Synthesis of NCN-cyclometalating pyrene ligand containing 2-butyl-2H-1,2,3,4-tetrazol-5-yl substituents. Reagents and conditions: a) CuCN, NMP, 180°C, 48 h; b) NaN 3 NH 4 Cl, DMF, 120°C, 10 h; c) butyl bromide, K 2 CO 3 , DMF, 70°C, 24 h. Scheme 3. Synthesis of the designed complexes M1-M4. Reagents and conditions: a) Os-TPY, NCN-pyrene ligand, ethylene glycol, 199°C, 24 h.

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Section: Resultsmentioning

confidence: 99%

Comprehensive Study of Mononuclear Osmium Complexes with Various Pyrene Ligands

et al. 2018

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“…19 DNA, 20 electrochromic dyes, 21 and nitroxides. [22][23][24][25][26][27][28][29][30][31][32][33][34] These studies greatly advanced the research on the fluorescence detection of AA; however, many of…”

Section: Resultsmentioning

confidence: 99%

“…It was reported that treatment of the nitronyl-nitroxides with acids led to protonation of the NO group. 32,37,38,45 AA is also acidic (pKa 1 = 4.1 and pKa 2 = 11.97) and would protonate the NO group of NN-CN-TFFP. With addition of AA from 20 μM to 2 mM, it is observed that the absorbance and the fluorescence of probe gradually changed (Figure.…”

Section: Resultsmentioning

confidence: 99%

Exploring Novel Spintronic Responses from Advanced Functional Organic Materials

Park¹,

Kim²

2015

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT SAR 18. NUMBER OF PAGES 30 19a. NAME OF RESPONSIBLE PERSON

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“…[5][6] Lately the stable aminoxyl radicals attached to several polyaromatic hydrocarbons (PAH) have been synthesized and proved their application in rechargeable batteries, sensors, organic field effect transistors and quantum magnets. [7][8][9][10][11][12] The PAH bearing aminoxyl radical moieties are also found to exhibit photoexcited high spin states. [13][14] The enhanced photo-stability of pentacene was achieved by attaching the nitronylnitroxide moiety.…”

Section: Introductionmentioning

confidence: 98%

Positional Isomers of Tetramethoxypyrene-based Mono- and Biradicals

Ravat

Baumgarten

2015

J. Phys. Chem. B

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The positional isomers of tert-butylnitroxide (NO) substituted 4,5,9,10-tetramethoxypyrene-based mono- and biradical are synthesized. While the biradical 2,7-TMPNO in which two NO radical moieties are attached at the nodal plane of pyrene adopts a semiquinoid structure, the 1,6- and 1,8-isomers of the same exist in biradical form. The tuning of the antiferromagnetic exchange interactions is achieved by synthesizing the positional isomers of the biradical while maintaining the same radical moiety as well as the π spacer.

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Tuning the sensitivity of fluorophore–nitroxide radicals

Cited by 21 publications

References 30 publications

Comprehensive Study of Mononuclear Osmium Complexes with Various Pyrene Ligands

Comprehensive Study of Mononuclear Osmium Complexes with Various Pyrene Ligands

Exploring Novel Spintronic Responses from Advanced Functional Organic Materials

Positional Isomers of Tetramethoxypyrene-based Mono- and Biradicals

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