Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Iweta Pryjomska-Ray"'
2
Binding of a TlCl Entity by a Tetragold Tetramercaptothiacalixarene Metalloligand via Metallophilic Interactions
Autor: Lutz Grubert, Iweta Pryjomska-Ray, Nicolas Frank, Stefan Hecht, Denis Usvyat, Christian Limberg
Publikováno v: Chemistry (Weinheim an Der Bergstrasse, Germany)
The successive auration of p‐tert‐butyltetramercaptotetrathiacalix[4]arene, H4(MTC[4]), with gold(I) phosphine units was investigated. Through deprotonation with NaOMe, followed by salt metathesis reactions with (PR3)AuCl (R=Me, Ph) complexes wit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ac9a385697d6310ef6ae0acdd08bbed
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3
Iron(III)-tCDTA derivatives as MRI contrast agents: Increased T
Autor: Jing, Xie, Akvile, Haeckel, Ralf, Hauptmann, Iweta Pryjomska, Ray, Christian, Limberg, Nora, Kulak, Bernd, Hamm, Eyk, Schellenberger
Publikováno v: Magnetic resonance in medicineREFERENCES. 85(6)
Low molecular weight iron(III) complex-based contrast agents (IBCA) including iron(III) trans-cyclohexane diamine tetraacetic acid [Fe(tCDTA)]Trans-cyclohexane diamine tetraacetic acid (tCDTA) was chemically modified in 2 steps: first the monoanhydri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::c1d2d3bcbda8bb98cb21b70962d247a6
https://pubmed.ncbi.nlm.nih.gov/33538352
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4
Comparing Isomeric Tridentate Carbazole-Based Click Ligands: Metal Complexes and Redox Chemistry
Autor: Iweta Pryjomska-Ray, Lutz Grubert, Christian Limberg, Stefan Hecht, Michael Pätzel, Denise Zornik, Konstantin B. Krause, Beatrice Braun-Cula
Publikováno v: Chemistry - A European Journal. 24:5341-5349
Two novel bis(triazolyl)carbazole ligands Hbtc1 (3,6-di(tert-butyl)-1,8-bis[(1-(3,5-di(tert-butyl)phenyl)-1,2,3-triazol-4-yl)]-9H-carbazole) and Hbtc2 (3,6-di(tert-butyl)-1,8-bis[(4-(3,5-di(tert-butyl)phenyl)-1,2,3-triazol-1-yl)]-9H-carbazole), diffe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed8a88c6fa82b2eefe811b95b6709c69
https://doi.org/10.1002/chem.201704858
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5
The Heck arylation of mono- and disubstituted olefins catalyzed by palladium supported on alumina-based oxides
Autor: Andrzej Gniewek, Ewa Mieczyńska, Mirosław Zawadzki, Anna M. Trzeciak, Hanna Grabowska, Iweta Pryjomska-Ray
Publikováno v: Applied Catalysis A: General. 393:195-205
Palladium catalysts containing Pd(0) or Pd(II) supported on alumina-based mixed oxides prepared by alkoxide sol–gel method (Al 2 O 3 , Al 2 O 3 –ZrO 2 , Al 2 O 3 –ZrO 2 –Eu 2 O 3 , Al 2 O 3 –MgO, Al 2 O 3 –CeO 2 , Al 2 O 3 –Fe 2 O 3 ) a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b0c83d4f675d866af71eb1ffcdb20bc
https://doi.org/10.1016/j.apcata.2010.11.041
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7
Homogeneous/heterogeneous palladium based catalytic system for Heck reaction. The reversible transfer of palladium between solution and support
Autor: Anna M. Trzeciak, Józef J. Ziółkowski, Andrzej Gniewek, Włodzimierz Tylus, Iweta Pryjomska-Ray
Publikováno v: Topics in Catalysis. 40:173-184
Pd(II)/Al2O3 and Pd(0)/Al2O3, containing 0.6% of palladium were characterized by EDX, SEM and XRD methods and used as catalysts of the Heck coupling of bromobenzene with butyl acrylate at 140 °C in molten [Bu4N]Br salt. Monoarylated (trans-PhCH = CH
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a3730596165a98d042aff0f9fef5f54
https://doi.org/10.1007/s11244-006-0119-1
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8
A chloro-bridged dinuclear phosphinitopalladium complex, di-μ-chloro-bis[(diphenoxyphosphinite-κP)(diphenoxyphosphinito-κP)palladium(II)]
Autor: Tadeusz Lis, Anna M. Trzeciak, Andrzej Gniewek, Józef J. Ziółkowski, Iweta Pryjomska-Ray
Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 62:m491-m494
The title compound, [Pd2(C12H10O3P)2Cl2(C12H11O3P)2], consists of a dinuclear mu-chloro-bridged palladium unit with two diphenoxyphosphinite groups per Pd atom, linked together by a hydrogen bond. The asymmetric unit contains one half of the molecule
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca32495a97bae6169b3cd67aa86688c6
https://doi.org/10.1107/s0108270106034500
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9
Base-free efficient palladium catalyst of Heck reaction in molten tetrabutylammonium bromide
Autor: Józef J. Ziółkowski, Anna M. Trzeciak, Iweta Pryjomska-Ray
Publikováno v: Journal of Molecular Catalysis A: Chemical. 257:3-8
Phosphine-free palladium precursors (PdCl 2 , PdCl 2 (PhCN) 2 and Pd(OAc) 2 ) in molten [ n Bu 4 N]Br as the reaction medium and without addition of base were used as components for efficient catalytic systems for Heck coupling of bromobenzene with b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5cb763298035b93365c97c180838347
https://doi.org/10.1016/j.molcata.2006.03.064
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10
Olefin cis-dihydroxylation with bio-inspired iron catalysts. evidence for an Fe(II)/Fe(IV) catalytic cycle
Autor: Yan Feng, Lawrence Que, Iweta Pryjomska-Ray, Paul D. Oldenburg, Daniel Ness
Publikováno v: Journal of the American Chemical Society. 132(50)
Iron(II) complexes of a series of N-acylated dipyridin-2-ylmethylamine ligands (R-DPAH) have been investigated as catalysts for the cis-dihydroxylation of olefins to model the action of Rieske dioxygenases that catalyze arene cis-dihydroxylation. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b2f7c3dcf1999bf193d723a263357b8
https://pubmed.ncbi.nlm.nih.gov/21105649
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