Výsledky vyhledávání - "J. Tyler Simmons"

Progressive structural modification to a zinc-actuated photoinduced electron transfer (PeT) switch in the context of intracellular zinc imaging

Autor: Kirsten L. Daykin, Zachary S. Hooper, Lei Zhu, Miguel Macias-Contreras, Michael W. Davidson, John R. Allen, J. Tyler Simmons

Publikováno v: Organicbiomolecular chemistry. 15(43)

Photoinduced electron transfer (PeT)-type fluorescent molecular switches are often applied in ion-selective sensors. Zinc-targeting sensors that contain an anilino-based electron donor (aka, the PeT ‘switch’) have multiple advantages over those w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08bb1b70c078fd96d38b5d28350a3c11
https://pubmed.ncbi.nlm.nih.gov/29052680

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Zn(ii)-coordination modulated ligand photophysical processes – the development of fluorescent indicators for imaging biological Zn(ii) ions

Autor: Lei Zhu, J. Tyler Simmons, Zhao Yuan, Kesavapillai Sreenath

Publikováno v: RSC Adv.. 4:20398-20440

Molecular photophysics and metal coordination chemistry are the two fundamental pillars that support the development of fluorescent cation indicators. In this article, we describe how Zn(II)-coordination alters various ligand-centered photophysical p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1edcbd8063b366f880d23a918aa03c3
https://doi.org/10.1039/c4ra00354c

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Structurally Diverse Copper(II) Complexes of Polyaza Ligands Containing 1,2,3-Triazoles: Site Selectivity and Magnetic Properties

Autor: Jared S. Kinyon, Kesavapillai Sreenath, Hoa Phan, J. Tyler Simmons, Zhenxing Wang, Lei Zhu, Pampa M. Guha, Wendy S. Brotherton, Naresh S. Dalal, Ronald J. Clark, Michael Shatruk

Publikováno v: Inorganic Chemistry. 51:3465-3477

Copper(II) acetate mediated coupling reactions between 2,6-bis(azidomethyl)pyridine or 2-picolylazide and two terminal alkynes afford 1,2,3-triazolyl-containing ligands L(1)-L(6). These ligands contain various nitrogen-based Lewis basic sites includi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::710ea93c53ad8d4311fe12f4017a150a
https://doi.org/10.1021/ic2021319

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Experimental Investigation on the Mechanism of Chelation-Assisted, Copper(II) Acetate-Accelerated Azide–Alkyne Cycloaddition

Autor: Pampa M. Guha, Lisa A. Stankee, Lei Zhu, J. Tyler Simmons, Ronald J. Clark, Brian T. Nguyen, Gui-Chao Kuang, Wendy S. Brotherton

Publikováno v: Journal of the American Chemical Society. 133:13984-14001

A mechanistic model is formulated to account for the high reactivity of chelating azides (organic azides capable of chelation-assisted metal coordination at the alkylated azido nitrogen position) and copper(II) acetate (Cu(OAc)(2)) in copper(II)-medi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00f1b12c582b5c5e4b1bca45670bc928
https://doi.org/10.1021/ja203733q

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Absorption and Emission Sensitivity of 2-(2'-Hydroxyphenyl)benzoxazole to Solvents and Impurities

Autor: J. Tyler Simmons, Zhao Yuan, Lei Zhu, Ali H. Younes, De-en Jiang, Qing Tang, Kesavapillai Sreenath

Publikováno v: Photochemistry and photobiology. 91(3)

2-(2′-Hydroxyphenyl)benzoxazole (HBO) is known for undergoing intramolecular proton transfer in the excited state to result in the emission of its tautomer. A minor long-wavelength absorption band in the range 370–420 nm has been reported in high

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b29965ebed007331a2a3b74b4931edf
https://pubmed.ncbi.nlm.nih.gov/25403707

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Fused polycyclic compounds via cycloaddition of 4-(1'-cyclohexenyl)-5-iodo-1,2,3-triazoles with 4-phenyl-1,2,4-triazoline-3,5-dione: the importance of a sacrificial iodide leaving group

Autor: Lei Zhu, Ronald J. Clark, J. Tyler Simmons, Heather A. Michaels

Publikováno v: The Journal of organic chemistry. 78(10)

4-(1'-Cyclohexenyl)-5-iodo-1,2,3-triazole and 4-phenyl-1,2,4-triazoline-3,5-dione undergo a formal Diels-Alder reaction, which following an S(N)2' solvolysis process to displace the iodo group affords a fused polycyclic compound.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662df03a8378ae067443abc852de8728
https://pubmed.ncbi.nlm.nih.gov/23621085

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Integrated and passive 1,2,3-triazolyl groups in fluorescent indicators for zinc(II) ions: thermodynamic and kinetic evaluations

Autor: Cathy W. Levenson, John R. Allen, Deborah R. Morris, Ronald J. Clark, Lei Zhu, Michael W. Davidson, J. Tyler Simmons

Publikováno v: Inorganic chemistry. 52(10)

In addition to being a covalent linker in molecular conjugation chemistry, the function of a 1,2,3-triazolyl moiety resulting from the copper(I)-catalyzed azide-alkyne cycloaddition reaction as a ligand for metal ions is receiving considerable attent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b24af55c08c1568efc34148991393018
https://pubmed.ncbi.nlm.nih.gov/23621758

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