Zobrazeno 1 - 10 of 11 pro vyhledávání: '"James R. Hemmer"'
1
A Perspective on the Force-Induced Heterolytic Bond Cleavage in Triarylmethane Mechanophores
Autor: José Augusto Berrocal, James R. Hemmer
Publikováno v: Synlett. 33:1681-1687
Triarylmethane derivatives and their corresponding trityl carbocations are among the oldest chemical species synthesized and studied by chemists. The carbocationic platforms are particularly interesting due to their stability, high extinction coeffic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4be57a79c8d44b96dfc6d2ed87c65ca1
https://doi.org/10.1055/a-1854-2131
Zobrazit plný text záznamu
2
Heterolytic Bond Cleavage in a Scissile Triarylmethane Mechanophore
Autor: James R. Hemmer, Bodo D. Wilts, Christoph Weder, Chris Rader, José Augusto Berrocal
Publikováno v: Journal of the American Chemical Society. 143(45)
Covalent mechanophores display the cleavage of a weak covalent bond when a sufficiently high mechanical force is applied. Three different covalent bond breaking mechanisms have been documented thus far, including concerted, homolytic, and heterolytic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e630f1ecab23bb6e90a4081870692ec
https://pubmed.ncbi.nlm.nih.gov/34735137
Zobrazit plný text záznamu
4
A Versatile and Highly Selective Colorimetric Sensor for the Detection of Amines
Autor: Craig J. Hawker, Nicolas J. Treat, Zachariah A. Page, Javier Read de Alaniz, Abigail S. Knight, James R. Hemmer, Yvonne J. Diaz
Publikováno v: Diaz, YJ; Page, ZA; Knight, AS; Treat, NJ; Hemmer, JR; Hawker, CJ; et al.(2017). A Versatile and Highly Selective Colorimetric Sensor for the Detection of Amines. CHEMISTRY-A EUROPEAN JOURNAL, 23(15), 3562-3566. doi: 10.1002/chem.201700368. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/2k0121h2
Chemistry (Weinheim an der Bergstrasse, Germany), vol 23, iss 15
The utility of Meldrum's activated furan (MAF) for the colorimetric detection of sub ppm levels of amines in solution, on solid supports, and as vapors is reported. MAF is synthesized in one step from inexpensive and commercially available starting m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2948eb5515bb8e5e582741a1758b17ab
https://doi.org/10.1002/chem.201700368
Zobrazit plný text záznamu
5
Controlling Dark Equilibria and Enhancing Donor-Acceptor Stenhouse Adduct Photoswitching Properties through Carbon Acid Design
Autor: Zachariah A. Page, Friedrich Stricker, Kyle D. Clark, Neil D. Dolinski, Javier Read de Alaniz, Craig J. Hawker, James R. Hemmer
Publikováno v: Journal of the American Chemical Society, vol 140, iss 33
Hemmer, JR; Page, ZA; Clark, KD; Stricker, F; Dolinski, ND; Hawker, CJ; et al.(2018). Controlling Dark Equilibria and Enhancing Donor-Acceptor Stenhouse Adduct Photoswitching Properties through Carbon Acid Design. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 140(33), 10425-10429. doi: 10.1021/jacs.8b06067. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/1vm8m3vt
A novel library of tunable negative photochromic compounds, donor-acceptor Stenhouse adducts (DASAs), is reported. Tailoring the electron deficient "acceptor" moiety yielded DASAs that can be activated with mild visible and far red light. The effect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::787c16fa93755515d01bb762b7bc1533
https://escholarship.org/uc/item/1vm8m3vt
Zobrazit plný text záznamu
6
Wavelength-Selective Light-Responsive DASA-Functionalized Polymersome Nanoreactors
Autor: Sebastian Ulrich, Nikolas F. B. Galensowske, Javier Read de Alaniz, Omar Rifaie-Graham, Daniel Rentsch, Mohamed Chami, Nico Bruns, James R. Hemmer, Luciano F. Boesel, Sandor Balog
Publikováno v: Rifaie-Graham, O; Ulrich, S; Galensowske, NFB; Balog, S; Chami, M; Rentsch, D; et al.(2018). Wavelength-Selective Light-Responsive DASA-Functionalized Polymersome Nanoreactors. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 140(25), 8027-8036. doi: 10.1021/jacs.8b04511. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/51w7h2fc
Journal of the American Chemical Society, vol 140, iss 25
Transient activation of biochemical reactions by visible light and subsequent return to the inactive state in the absence of light is an essential feature of the biochemical processes in photoreceptor cells. To mimic such light-responsiveness with ar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4538ab5d736edcdfd2909dec1bb19be
https://pubmed.ncbi.nlm.nih.gov/29856216
Zobrazit plný text záznamu
7
Visible light-responsive DASA-polymer conjugates
Autor: Sebastian Ulrich, Zachariah A. Page, Craig J. Hawker, Neil D. Dolinski, Omar Rifaie-Graham, Nico Bruns, Luciano F. Boesel, Javier Read de Alaniz, James R. Hemmer
Publikováno v: ACS Macro Letters
Ulrich, S; Hemmer, JR; Page, ZA; Dolinski, ND; Rifaie-Graham, O; Bruns, N; et al.(2017). Visible Light-Responsive DASA-Polymer Conjugates. ACS MACRO LETTERS, 6(7), 738-742. doi: 10.1021/acsmacrolett.7b00350. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/22b8q5wp
ACS MACRO LETTERS, vol 6, iss 7
ACS macro letters, vol 6, iss 7
A modular synthesis of Donor-Acceptor Stenhouse Adduct (DASA) polymer conjugates is described. Pentafluorophenyl-ester chemistry is employed to incorporate aromatic amines into acrylate and methacrylate copolymers, which are subsequently coupled with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::955b403ad52fd33ff296eadf0917483b
https://strathprints.strath.ac.uk/66182/1/Ulrich_etal_ACS_ML_2017_Visible_light_responsive_DASA_polymer.pdf
Zobrazit plný text záznamu
8
Tunable visible and near infrared photoswitches
Autor: Craig J. Hawker, Nicolas J. Treat, Zachariah A. Page, Joseph P. Hooper, Saemi O. Poelma, Javier Read de Alaniz, Warren Tomlinson, Neil D. Dolinski, Yvonne J. Diaz, Kyle D. Clark, James R. Hemmer
Publikováno v: Journal of the American Chemical Society, vol 138, iss 42
Hemmer, JR; Poelma, SO; Treat, N; Page, ZA; Dolinski, ND; Diaz, YJ; et al.(2016). Tunable Visible and Near Infrared Photoswitches. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 138(42), 13960-13966. doi: 10.1021/jacs.6b07434. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/8mn883fc
The article of record as published may be found at http://dx.doi.org/10.1021/jacs.6b07434 A class of tunable visible and near-infrared donor−acceptor Stenhouse adduct (DASA) photoswitches were efficiently synthesized in two to four steps from comme
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f77aa7507dbfa4142466a952a4536daa
https://hdl.handle.net/10945/53766
Zobrazit plný text záznamu
9
Optical characterization and confocal fluorescence imaging of mechanochromic acrylate polymers
Autor: Joseph P. Hooper, James R. Hemmer, Patrick Smith, J. Read de Alaniz, M. van Horn, Sebastian Osswald, Brian P. Mason
Publikováno v: Journal of Applied Physics, vol 117, iss 4
Van Horn, M; Smith, P; Mason, BP; Hemmer, JR; Read De Alaniz, J; Hooper, JP; et al.(2015). Optical characterization and confocal fluorescence imaging of mechanochromic acrylate polymers. Journal of Applied Physics, 117(4). doi: 10.1063/1.4906326. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/9v16q8vc
The article of record as published may be found at http://dx.doi.org/10.1063/1.4906326 The development of mechanochromic molecules has opened new pathways for the study of localized stress and failure in polymers. Their application as stress or tempe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0481b7bf367b5b32cd6721481f06123
https://hdl.handle.net/10945/52010
Zobrazit plný text záznamu
10
A temperature-mapping molecular sensor for polyurethane-based elastomers
Autor: Joseph P. Hooper, Sameh Helmy, M. Whittaker, A. Harper, Brian P. Mason, J. Read de Alaniz, Sufian Alnemrat, A. McEachen, James R. Hemmer, S. Arora
Publikováno v: Applied Physics Letters. 108:041906
The article of record as published may be located at http://dx.doi.org/10.1063/1.4940750 We present a crosslinked polyurethane elastomer featuring a thermochromic molecular sensor for local temperature analysis. The thermochrome is a modified donor-a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f6c640c903d40026d03b308b5ab6d6e
https://doi.org/10.1063/1.4940750
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje