Zobrazeno 1 - 10
of 38
pro vyhledávání: '"A Timothy, Royappa"'
Autor:
Lea Nyiranshuti, Emily R. Andrews, Leonid I. Povolotskiy, Frances M. Gomez, Nathan R. Bartlett, Arun Timothy Royappa, Arnold L. Rheingold, William Rudolf Seitz, Roy P. Planalp
Publikováno v:
Molecules, Vol 28, Iss 20, p 7097 (2023)
An aqueous Cu2+ and Zn2+ indicator is reported based on copolymerizing aminopyridine ligands and the environment-sensitive dansyl fluorophore into the responsive polymer poly(N-isopropylacrylamide) (PNIPAm). The metal ion binding creates charge and s
Externí odkaz:
https://doaj.org/article/f65f047baddc40beae8c7a03a54124a5
Autor:
A. Timothy Royappa, Robert J. Papoular, Milan Gembicky, William Shepard, Aubrey D. Ross, Audrey G. Stemen, James J. Bobbitt, Duong T. Doan, Saul H. Lapidus, Dean H. Johnston, Alexander Filatov
Publikováno v:
Polyhedron. 222:115873
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 10, Pp e3-e3 (2014)
An erroneous claim in the paper by Royappa et al. [Acta Cryst. (2013), E69, m126] is corrected and a reference added for a previously published report of a closely related structure.
Externí odkaz:
https://doaj.org/article/c90282cd887d4050bbfcd1f75da70bb5
Autor:
A. Timothy Royappa, Jacob R. Stepherson, Oliver D. Vu, Andrew D. Royappa, Charlotte L. Stern, Peter Müller
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 10, Pp m544-m544 (2013)
In the title compound, [Cu(CH3CN)4](C2HO4)·0.5C2H2O4·0.5CH3CN, the CuI ion is coordinated by the N atoms of four acetonitrile ligands in a slightly distorted tetrahedral environment. The oxalic acid molecule lies across an inversion center. The ace
Externí odkaz:
https://doaj.org/article/659a52a2cca94cc3a5e4ab8fda459ffb
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 2, Pp m126-m126 (2013)
The dinuclear molecule of the title compound, [Cu2(C2O4)(C18H15P)4]·2CH2Cl2, lies across an inversion center with a strictly planar bridging oxalate ligand coordinating two CuI ions via two pairs of O atoms. Two triphenylphosphine ligands also coord
Externí odkaz:
https://doaj.org/article/f0a15f0fa67142859a60916773d818bf
Autor:
Jill E. Millstone, Banghao Chen, Chau M. Tran, William Shepard, Mohsan Khan, Erik Elkaim, Robert J. Papoular, Lauren E. Marbella, Milan Gembicky, A. Timothy Royappa
Publikováno v:
Polyhedron. 155:359-365
Copper(I) and gold(I) thiolates were synthesized in quantitative or near-quantitative yield by the direct reaction of aqueous Cu(NO3)2 or HAuCl4 with aqueous thiols HSCH2CH2OH and HSCH2CH2OCH2CH2OH. The resulting highly insoluble thiolates had spectr
Autor:
A. Timothy Royappa, Arnold L. Rheingold, Petr Král, Marco S. Messina, Yanxiao Han, Dahee Jung, Jing Yang Wang, Azin Saebi, Jonathan C. Axtell, Pavel Rehak, Elamar Hakim Moully, Elaine A. Qian, Alex I. Wixtrom, Heather D. Maynard, Alexander M. Spokoyny, Daniel Mosallaei, Sylvia Chow
Publikováno v:
Nature Chemistry. 9:333-340
The majority of biomolecules are intrinsically atomically precise, an important characteristic that enables rational engineering of their recognition and binding properties. However, imparting a similar precision to hybrid nanoparticles has been chal
Autor:
Arnold L. Rheingold, Peter I. Djurovich, A. Timothy Royappa, Alexander M. Spokoyny, Dahee Jung, Kent O. Kirlikovali, Brian Munekiyo, Vinh T. Nguyen, Jonathan C. Axtell
Publikováno v:
Journal of the American Chemical Society. 138:15758-15765
We report the development of a new class of phosphorescent zwitterionic bis(heteroleptic) Ir(III) compounds containing pyridyl ligands with weakly coordinating nido-carboranyl substituents. Treatment of phenylpyridine-based Ir(III) precursors with C-
Autor:
Gilles André, Dylan C. Kelly, Robert J. Papoular, A. Timothy Royappa, Banghao Chen, Nikolaos Kourkoumelis, Allegra M. Pekarek, Deke M. Blum, Andrew D. Mercer, Matthew R. Suchomel, Andrew D. Royappa, Oliver D. Vu, Jacob R. Stepherson, Arnold L. Rheingold, Raphael F. Moral, James A. Golen, Tien Q. Duong
Publikováno v:
Polyhedron. 119:563-574
A series of dinuclear copper(I) oxalate complexes was synthesized by the direct acid-base reaction of Cu2O with oxalic acid in ethanol with a ligand, or in neat ligand. The complexes incorporated a variety of ligands L (L = triphenylphosphine, 1,2-bi
Autor:
Arnold L. Rheingold, A. Timothy Royappa, Liban M. A. Saleh, Joshua L. Martin, Jonathan C. Axtell, Alexander M. Spokoyny, Rafal M. Dziedzic, Simone L. Stevens
Publikováno v:
Journal of the American Chemical Society. 138:9081-9084
Carboranes are boron-rich molecules that can be functionalized through metal-catalyzed cross-coupling. Here, for the first time, we report the use of bromo-carboranes in palladium-catalyzed cross-coupling for efficient B-N, B-O, and unprecedented B-C