scholarly journals Two-Dimensional Combinatorial Screening of a Bacterial rRNA A-Site-like Motif Library: Defining Privileged Asymmetric Internal Loops That Bind Aminoglycosides

Biochemistry ◽  
2010 ◽  
Vol 49 (9) ◽  
pp. 1833-1842 ◽  
Author(s):  
Tuan Tran ◽  
Matthew D. Disney
Keyword(s):  
Two Dimensional ◽  
Combinatorial Screening ◽  
Internal Loops ◽  
A Site

scholarly journals Probing a 2-Aminobenzimidazole Library for Binding to RNA Internal Loops via Two-Dimensional Combinatorial Screening

2012 ◽  
Vol 7 (11) ◽  
pp. 1902-1909 ◽  
Author(s):  
Sai Pradeep Velagapudi ◽  
Alexei Pushechnikov ◽  
Lucas P. Labuda ◽  
Jonathan M. French ◽  
Matthew D. Disney
Keyword(s):  
Two Dimensional ◽  
Combinatorial Screening ◽  
Internal Loops

scholarly journals Defining the RNA Internal Loops Preferred by Benzimidazole Derivatives via 2D Combinatorial Screening and Computational Analysis

2011 ◽  
Vol 133 (26) ◽  
pp. 10111-10118 ◽  
Author(s):  
Sai Pradeep Velagapudi ◽  
Steven J. Seedhouse ◽  
Jonathan French ◽  
Matthew D. Disney
Keyword(s):  
Computational Analysis ◽  
Benzimidazole Derivatives ◽  
Combinatorial Screening ◽  
Internal Loops

scholarly journals Crystal structure of bis(acetylacetonato-κ2O,O′)(tetrahydrofuran-κO)(trifluoromethanesulfonato-κO)iron(III)

2015 ◽  
Vol 71 (10) ◽  
pp. 1165-1168
Author(s):  
Casseday P. Richers ◽  
Jeffery A. Bertke ◽  
Thomas B. Rauchfuss
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Site Occupancy ◽  
Title Complex ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Length Range ◽  
A Site

The mononuclear title complex, [Fe(CF3O3S)(C5H7O2)2(C4H8O)] or [Fe(acac)2(OTf)(THF)] (acac = acetylacetonate; OTf = trifluoromethanesulfonate; THF = tetrahydrofuran), (I), consists of one six-coordinate Fe3+atom in a slightly distorted octahedral environment [Fe—O bond-length range = 1.9517 (11)–2.0781 (11) Å]. The triflate ligand was found to be disordered over two sets of sites, with a site-occupancy ratio of 0.622 (16):0.378 (16). Weak intermolecular C—H...O and C—H...F hydrogen-bonding interactions generate a two-dimensional supramolecular structure lying parallel to (100). This is only the second crystal structure reported of a mononuclear bis(acetylacetonato)iron(III) complex.

scholarly journals Two-Dimensional Combinatorial Screening Identifies Specific 6′-Acylated Kanamycin A− and 6′-Acylated Neamine−RNA Hairpin Interactions†

Biochemistry ◽  
2008 ◽  
Vol 47 (48) ◽  
pp. 12670-12679 ◽  
Author(s):  
Olga Aminova ◽  
Dustin J. Paul ◽  
Jessica L. Childs-Disney ◽  
Matthew D. Disney
Keyword(s):  
Two Dimensional ◽  
Combinatorial Screening ◽  
Rna Hairpin

scholarly journals Design of two-dimensional perovskite solar cells with superior efficiency and stability

2021 ◽  
Author(s):  
Daniel Ramírez ◽  
Franklin Jaramillo
Keyword(s):  
Solar Cells ◽  
Rapid Development ◽  
Perovskite Solar Cells ◽  
Organic Cations ◽  
Two Dimensional ◽  
Layered Systems ◽  
Initial Value ◽  
Fabrication And Characterization ◽  
A Site

Pervskite solar cells have attracted extensive attention from researchers worldwide due to their rapid development and efficiency. Nevertheless, stability is still an issue that limits the advance of this technology. In this work, we present the fabrication and characterization of two-dimensional perovskites of the Ruddlesden-Popper’s family (A)2(MA)n−1PbnI3n+1 (three different A-site large cations were investigated: A=n-propylammonium, t-Butylammonium or Benzylammonium). The modulation of the large organic cations increased the band gap of the materials and improved moisture and thermal stability, making it possible to fabricate PSCs. Even though the organic interlayers intrinsically reduce the transport properties of the devices and therefore lower currents are obtained in the layered systems, a remarkable efficiency of 10.35% was obtained for (BUA)2(MA)2Pb3I10, with superior stability, and therefore, it was possible to retain 68% of its initial value after 1700 h for devices without encapsulation.

scholarly journals Synthetic Variation and Structural Trends in Layered Two-Dimensional Alkylammonium Lead Halide Perovskites

2019 ◽  
Author(s):  
Watcharaphol Paritmongkol ◽  
Nabeel Dahod ◽  
Nannan Mao ◽  
Shao-Liang Zheng ◽  
William Tisdale
Keyword(s):  
Crystal Structures ◽  
Periodic Variation ◽  
Two Dimensional ◽  
Halide Anion ◽  
Structural Distortions ◽  
Spacer Layer ◽  
Halide Perovskites ◽  
Spacer Chain Length ◽  
A Site ◽  
Lead Halide

We report the cooling-induced crystallization of layered two-dimensional lead halide perovskites with controllable inorganic quantum-well thickness (<i>n</i> = 1, 2, 3, 4)<i>,</i> organic spacer chain length (butyl-, pentyl-, hexylammonium), A-site cation (methylammonium, formamidinium), and halide anion (iodide, bromide). We report crystal structures for the iodide family as a function of these compositional parameters, and across their temperature dependent phase transitions. In general, lower symmetry crystal structures, increasing extents of organic-spacer interdigitation, and increasing organic-spacer corrugation tilts are observed at low temperature. In addition, greater structural distortions are seen in lead halide octahedra closest to the organic spacer layer, and larger-<i>n­ </i>structures exhibit periodic variation in Pb-I bond lengths. We also provide detailed guidance regarding the combination of synthetic parameters needed to achieve phase-pure crystals of each composition, and discuss difficulties encountered when trying to synthesize particular members of the 2D perovskite family containing formamidinium or cesium as the A-site cation. These results provide a foundation for understanding structural trends in 2D lead halide perovskites and the effect these trends have on their thermal, electrical, and optical properties.

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