Delocalized hypervalent silyl radical supported by amidinate and imino substituents [PDF]
, 2016 The reaction of the amidinato silylsilylene with a functionalized diaminochlorosilyl substituent [LSiSi(Cl){(NtBu)2C(H)Ph}] (1, L = PhC(NtBu)2) with ArN=C=NAr (Ar = 2,6-iPr2C6H3) in toluene afforded the delo-calized hypervalent silyl radical [LSi(-CNAr ...
Carter, Emma +5 more
core +4 more sources
Taxonomy of Chemical Bondings: Opportunities and Challenges
Angewandte Chemie, EarlyView.The recent focus on supramolecular and nanosized systems produced a major increase in the types of observed noncovalent interactions and in the diversity of terms used to designate them. A hierarchical categorization (taxonomy) of terms used to designate electrophile···nucleophile interactions is proposed here.
Andrea Pizzi +5 more
wiley +2 more sources
Structural Conformers of (1,3-Dithiol-2-ylidene)ethanethioamides: The Balance Between Thioamide Rotation and Preservation of Classical Sulfur-Sulfur Hypervalent Bonds [PDF]
, 2015 The reaction of N-(2-phthalimidoethyl)-N-alkylisopropylamines and S2Cl2 gave 4-N-(2-phthalimidoethyl)-N-alkylamino-5-chloro-1,2-dithiol-3-thiones that quantitatively cycloadded to dimethyl or diethyl acetylenedicarboxylate to give stable thioacid ...
Calvo Gredilla, Patricia +9 more
core +1 more source
Hypervalent aryliodine compounds as precursors for radiofluorination.
Journal of labelled compounds & radiopharmaceuticals, 2018 Over the last 2 decades or so, hypervalent iodine compounds, such as diaryliodonium salts and aryliodonium ylides, have emerged as useful precursors for labeling homoarenes and heteroarenes with no-carrier-added cyclotron-produced [18 F]fluoride ion (t1 ...
V. Pike
semanticscholar +1 more source
O,N,N-Pincer ligand effects on oxidatively induced carbon–chlorine coupling reactions at palladium [PDF]
, 2015 The syntheses of two families of sterically tuneable O,N,N pro-ligands are reported, namely the 2-(phenyl-2′-ol)-6-imine-pyridines, 2-(C6H4-2′-OH),6-(CMe[double bond, length as m-dash]NAr)C5H3N [Ar = 4-i-PrC6H4 (HL1a), 2,6-i-Pr2C6H3 (HL1b)] and the 2 ...
Cross, WB +4 more
core +1 more source
Chalcogen bonding of two ligands to hypervalent YF4 (Y = S, Se, Te, Po).
Physical Chemistry, Chemical Physics - PCCP, 2019 The ability of two NH3 ligands to engage in simultaneous chalcogen bonds to a hypervalent YF4 molecule, with Y = S, Se, Te, Po, is assessed via quantum calculations. The complex can take on one of two different geometries.
W. Zierkiewicz +3 more
semanticscholar +1 more source
Neutral and Cationic Bis-Chelate Monoorganosilicon(IV) Complexes of 1-Hydroxy-2-pyridinone [PDF]
, 2017 A series of spirocyclic monoorganosilicon compounds of the form RSi(OPO)2Cl [R = phenyl (1); p-tolyl (2); benzyl (3); Me (4); tBu (5); thexyl (6)] (OPO = 1-oxo-2-pyridinone) was synthesized and characterized by 1H , 13C, and 29Si NMR spectroscopy, X-ray ...
Brennessel, William W +2 more
core +4 more sources
The heat of atomization of sulfur trioxide, SO$_3$ - a benchmark for computational thermochemistry [PDF]
, 1999 Calibration ab initio (direct coupled cluster) calculations including basis set extrapolation, relativistic effects, inner-shell correlation, and an anharmonic zero-point energy, predict the total atomization energy at 0 K of SO$_3$ to be 335.96 ...
Bauschlicher +9 more
core +2 more sources
Sterically restricted tin phosphines, stabilized by weak intramolecular donor-acceptor interactions [PDF]
, 2014 Funding: Engineering and Physical Sciences Research Council (EPSRC)Four related sterically restricted pen-substituted acenaphthenes have been prepared containing mixed tin phosphorus moieties in the proximal 5,6-positions (Acenap[SnR3][(PPr2)-Pr-i ...
Arachchige, Kasun S. Athukorala +9 more
core +4 more sources
Packaging Metal Atomic Clusters for Universal and Robust Protection through Cluster Beam Process
Advanced Science, EarlyView.Gas‐phase‐aggregated metal clusters are packaged and well‐protected in poly(methyl methacrylate) (PMMA) through controlled beam implantation. The packaged precise clusters show robust protection against oxidation and agglomeration. This protection also demonstrates universality, as it successfully protects metal clusters composed of various elements ...
Siqi Lu +13 more
wiley +1 more source