Articles with "four membered" as a keyword



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The importance of four‐membered NHCs in stabilizing Breslow intermediates on benzoin condensation pathway

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Published in 2022 at "Journal of Computational Chemistry"

DOI: 10.1002/jcc.26935

Abstract: N‐heterocyclic carbenes (NHCs) have been established to be effective organocatalysts for facilitating the benzoin condensation and many other reactions. These reactions involve the formation of a Breslow intermediate (BI), which exhibits umpolung chemistry. To facilitate… read more here.

Keywords: reaction; membered nhcs; chemistry; four membered ... See more keywords
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Synthesis of Four-Membered BN3 Heterocycles by the Borylation of Triazenes.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.1c03309

Abstract: Borylated triazenes were synthesized by the dehydrocoupling of triazenes with 9-borabicyclo(3.3.1)nonane, by the condensation of triazenes with BEt3, or by the reaction of sodium triazenides with dialkyl- or diarylboron halides. The structures of the products… read more here.

Keywords: four membered; heterocycles borylation; membered bn3; bn3 ... See more keywords
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Planar Four-Membered Diboron Actinide Compound with Double Möbius Aromaticity

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Published in 2023 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.3c00907

Abstract: The Möbius rule predicts that a planar four-membered metallacycle can be aromatic with four mobile electrons, but such a simple ring has escaped recognition because it usually favors Hückel anti-aromaticity. Here, we report that a… read more here.

Keywords: actinide compound; four membered; planar four; bius aromaticity ... See more keywords
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A square planar silylene nickel four-membered ring.

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Published in 2021 at "Dalton transactions"

DOI: 10.1039/d1dt02846d

Abstract: Herein the new nickel silylene [PhC(NtBu)2SiNi(C5Me5)]2, which features a square planar central ring motif consisting of two silicon and two nickel atoms is presented. The title compound was obtained by an insertion of the Ni(0)… read more here.

Keywords: membered ring; planar silylene; square planar; silylene ... See more keywords
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Geometric Isomers of Asymmetric Rigid Four-Membered Chelating Ring Based Deep-Red-Emitting Iridium Complexes Featuring Three Charged (0, -1, -2) Ligands

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Published in 2023 at "Inorganic Chemistry Frontiers"

DOI: 10.1039/d3qi00224a

Abstract: Geometric isomers are very important and interesting in the field of optical materials. In this work, we have designed and synthesized a new series of geometric isomers of iridium complexes... read more here.

Keywords: rigid four; iridium complexes; asymmetric rigid; four membered ... See more keywords
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Calculations of molecular multipole electric moments of a series of exo-insaturated four-membered heterocycles, Y = CCH2CH2X

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Published in 2017 at "Molecular Physics"

DOI: 10.1080/00268976.2017.1333646

Abstract: ABSTRACT The influence of ring puckering angle on the multipole moments of sixteen four-membered heterocycles (1-16) was theoretically estimated using MP2 and different DFTs in combination with the 6-31+G(d,p) basis set. To obtain an accurate… read more here.

Keywords: basis set; multipole moments; basis; membered heterocycles ... See more keywords
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Simple Synthesis of Red Iridium(III) Complexes with Sulfur-Contained Four-Membered Ancillary Ligands for OLEDs

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Published in 2021 at "Molecules"

DOI: 10.3390/molecules26092599

Abstract: Phosphorescent iridium(III) complexes have been widely researched for the fabrication of efficient organic light-emitting diodes (OLEDs). In this work, three red Ir(III) complexes named Ir-1, Ir-2, and Ir-3, with Ir-S-C-S four-membered framework rings, were synthesized… read more here.

Keywords: iii; iridium iii; iii complexes; four membered ... See more keywords