Aleš Růžička
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Generating Molecular Diversity via Addition of Nucleophiles to Electron-Deficient [3]Dendralenes: An Exploratory Study Open
Electron-deficient dendralenes, bearing enone substructures and possessing an unfavorable disposition of like charges at the neighboring carbons, undergo nucleophilic 1,4-addition (Michael) or 1,6-addition (anti-Michael). Diverse products …
How to (not) Evaluate a Photoswitch Performance; Benchmarking of Methods Used for Processing Kinetic Data on an Example of Arylazopyrazole Z‐Isomer Half‐Life Open
Photoswitchable molecular systems are nowadays very popular and promising for development of molecular electronics in the future. Their physico‐chemical properties, such as activation wavelength, quantum yields, or stability of metastable …
First Enantioselective Chalcogen Bonding Catalysis Controlled Solely by σ-Hole Interactions Open
We report the first enantioselective organocatalysis driven exclusively by chalcogen bonding. A new class of chiral chalcogen-bond donors promotes the asymmetric aza-Henry reaction, governed solely by σ-hole interactions, to deliver drug-r…
Enhanced Reactivity of N‐heterocyclic Halophosphines and Phosphenium Cations: The Activation of Carbon─Heteroatom and Boron─Heteroatom Bonds Open
N ‐heterocyclic phosphines (NHPs), and especially their ionic derivatives, phosphenium cations, have gained significant attention not only as isoelectronic species to N ‐heterocyclic carbenes (NHCs) but mainly, as highly Lewis acidic, acti…
Flexible Biguanide Mono- and Bimetallic Zinc Complexes for the Ring-Opening (Co)polymerization of Lactides Open
One of the most urgent social demands on polymer chemistry is the design of an inexpensive, efficient, robust, and nontoxic catalyst for the preparation of biodegradable polymers with good control of its properties. The nonsymmetric ditopi…
Phenyl-Substituted Thiaboranes─Linked 2D and 3D Aromatics as Noncovalent Organic Framework Materials Open
A series of 12-phenyl-closo-thiaboranes (12-(4-X-C6H4)-closo-1-SB11H10, where X = OMe (2), X = SMe (3), X = Ph (4), and X = NMe2 (5)) has been prepared. Except for 2, all compounds exhibit a chalcogen bond of thiaborane to the phenyl ring …
Addition of Lithium Silylamides to 1,2-Dicyanobenzene: Isoindoline-1,3-diimine Derivatives Investigated by NMR/XRD/DFT Approach Open
Phthalocyanines and their building blocks, isoindoline-1,3-diimines (diiminoisoindoles, DIIs), represent a structurally diverse class of compounds with the ability to make metal complexes and perform in various fields from medicine to phot…
<sup>31</sup>P NMR Study of P‐Chirogenic Phosphaphenanthrenes with Molecular Flexibility tuned by Amino Acid Substituents Open
Model phosphonamidates derived from 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) with molecular flexibility tuned by amino acid substituents were prepared as pairs of diastereoisomers (DSIs) differing in configuration on phosp…
Cationic Polyhedral Chalcogenaboranes: Activation without breaking Wade's Rules Open
Wade's rules are a well‐established tool for the description of the geometry of inorganic clusters. Among others, they state that a decrease or increase in charge is always accompanied by a change in the number of skeletal electron pairs (…
Solid-State Photoswitching of Hydrazones Based on Excited-State Intramolecular Proton Transfer Open
The development of new photochromic systems is motivated by the possibility of controlling the properties and functions of materials with high spatial and temporal resolution in a reversible manner. While there are several classes of photo…
The investigation of the steric hindrance of anilines by means of reactions with PCl <sub>3</sub> and BCl <sub>3</sub> Open
The synthesis of a sterically crowded dissymmetrical aniline is described. Its shielding properties are demonstrated through the syntheses of monomeric chloro(imino)phosphine and dichloroborane, and the first evidence of a terminal NHBH 2 …
Conformational and electronic variability of <i>N</i>,<i>N’</i>,<i>O</i>-ligand documented on its coordination to main group halides Open
The presented study describes the coordination variability of non-symmetric ligand L ( L = 2-(C(Me)=N(C 6 H 3 -2,6-iPr 2 ))-6-((iPrO) 2 P=O)C 5 H 3 N) towards of different main-group halides.
Remarkable coordination variability of the P,C,P-pincer ligand in organotin( <span>iv</span> ) compounds – a promising outlook for other p-block elements Open
The present study demonstrates the high versatility of the P,C,P-pincer ligand in the coordination chemistry of tin( iv ) compounds, offering a promising outlook in respect to its future application with other p-block elements.
Single Step Synthesis of Non-symmetric Azoarenes Using Buchwald–Hartwig Amination Open
Aromatic azo compounds stand as a highly sought-after class of substances owing to their extensive array of applications across various fields. Despite their significance, their synthesis often presents challenges, requiring either multist…
Redox Cycling with Tellurium. Si−H Bond Activation by a Lewis Superacidic Tellurenyl Cation Open
The C,N ‐chelated aryltellurenyl triflate [2‐( t BuNCH)C 6 H 4 Te][OTf] ( 1 ) activates the Si−H bonds in the tertiary silanes R 3 SiH via umpolung of H − to H + to give rise to the iminium salts ( t BuN(H)CH)C 6 H 4 TeSiR 3 ][OTf] ( 2 R ,…
CCDC 2206624: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
Solid-state and aggregation-induced emission of novel bicyclic and tricyclic difluoroboron heterocycles Open
Here, six novel bicyclic and tricyclic difluoroboron NBN and OBN heterocycles were designed for their strong potential as active layers in optoelectronics and responsive units in sensing applications.
Synthesis, photophysics and two-photon absorption of imidazole-centred tripodal chromophores Open
Tripodal imidazole-centred chromophores bearing peripheral acceptors were prepared and investigated. The observed centrifugal ICT results in tuneable (nonlinear) optical properties and two-photon absorption cross-sections of up to 521 GM.
Antimony centre in three different roles: does donor strength or acceptor ability determine the bonding pattern? Open
The guanidine substituted organostibines allowed remarkable coordination variability including three distinct modes of M⋯Sb bonding (M = Pd or Pt), i.e. Sb → M L-type and Z-type interactions involving M ← Sb donation and M → Sb backdonatio…
Deep-blue emissive and colourless polyimides: optical property tuning by triphenylamino and carbazole chromophores Open
Two novel emissive chromophores based on triphenylamine and carbazole have been designed, prepared and further utilized as comonomers towards end-capped emissive colourless polyimides.
CCDC 2277412: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
CCDC 2277413: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
CCDC 2277414: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
CCDC 2277415: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
Exploring the impact of alignment media on RDC analysis of phosphorus-containing compounds: a molecular docking approach Open
Two different docked poses of two diastereoisomers accommodated in the PBLG helix. Conformational change caused by PBLG was used for generation of new ensembles of conformers for RDC analysis.
View article: CCDC 2283033: Experimental Crystal Structure Determination
CCDC 2283033: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
Palladium(II) and Platinum(II) Bis(Stibinidene) Complexes with Intramolecular Hydrogen‐Bond Enforced Geometries Open
The coordination capability of two N,C,N pincer coordinated stibinidenes, i. e . bis(imino)‐ [2,6‐(DippN=CH) 2 C 6 H 3 ]Sb ( 1 ) or imino‐amino‐ [2‐(DippN=CH)‐6‐(DippNHCH 2 )C 6 H 3 ]Sb ( 2 ) toward palladium(II) and platinum(II) centers w…
CCDC 2267951: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …