Chemical Communications
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#1Moumita Das (Institute of Chemical Technology in Prague)
#2Debraj Gangopadhyay (CAS: Academy of Sciences of the Czech Republic)
Last. Petr Bouř (Institute of Chemical Technology in Prague)H-Index: 1
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Combination of optical activity with surface-enhanced Raman scattering has been a dream of physical chemists for a long time. We report a measurement protocol based on silver colloids and aromatic linkers where chiral acids could be detected in concentrations of about 10-5 M. We explain the mechanism by binding and self-assembly of the linkers into chiral aggregates on the silver surface. Following the "sergeants-and-soldiers" principle, the chirality is determined by the relatively minor acidic...
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#1John Zhou (UMKC: University of Missouri–Kansas City)
#2Ashley M. Cole (UMKC: University of Missouri–Kansas City)
Last. Shin A. Moteki (UMKC: University of Missouri–Kansas City)
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A strategy to build Janus dendrimers via the chirality-directed self-assembly of heteroleptic Zn(ii) BOX complexes is reported. The method allows quantitative synthesis of Janus dendrimers in situ without the need for purifications. Each dendritic domain of the Janus dendrimers can be recycled upon disassembly at the focal point.
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#1Dmitry B. Eremin (SC: University of Southern California)H-Index: 12
The 2021 Faraday Discussion on reaction mechanisms in catalysis attracted over a hundred delegates from around the world. Notwithstanding the challenges we faced in 2020, the online platform brought together leading scientists passionate about understanding the mechanisms of catalysed reactions. The meeting showed the great shape of the field and proved the ability of the community to face global challenges, and to be adaptive, flexible, and responsive.
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#1Mian He (University of Sussex)H-Index: 2
#2Fu-Sheng Guo (University of Sussex)H-Index: 27
Last. Richard A. Layfield (University of Sussex)H-Index: 28
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The dimetallic fulvalene-bridged dysprosium complex [{Dy(Cp*)(μ-BH4)}2(Fvtttt)] (1, Cp* = C5Me5) is converted into the trimetallic borohydride-bridged species [{Dy(Cp*)(Fvtttt)}2Dy(μ-BH4)3] (2). In turn, 2 is reacted with a silylium electrophile to give [{Dy(Cp*)(μ-BH4)(Fvtttt)}2Dy][B(C6F5)4] ([3][B(C6F5)3]), the first trimetallic dysprosocenium cation. Compound [3][B(C6F5)3] can also be formed directly from 1 by adding two equivalents of the electrophile. A three-fold enhancement in the effecti...
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#1Tingxiang Yang (Leibniz Institute of Photonic Technology)
#2Avinash Chettri (Leibniz Institute of Photonic Technology)
Last. Benjamin Dietzek (Leibniz Institute of Photonic Technology)H-Index: 54
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Small molecules are frequently used as dyes, labels and markers to visualize and probe biophysical processes within cells. However, very little is generally known about the light-driven excited-state reactivity of such systems when placed in cells. Here an experimental approach to study ps time-resolved excited state dynamics of a benchmark molecular marker, astaxanthin, in live human cells is introduced.
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#1Peng-Hao Wang (CAS: Chinese Academy of Sciences)H-Index: 2
#2Cao-Ming Yu (CAS: Chinese Academy of Sciences)H-Index: 2
Last. Guo-Cong Guo (CAS: Chinese Academy of Sciences)H-Index: 68
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A new design strategy through the synergy of Mo(vi)-Mo(v) intervalence charge transfer and π(radical)-π(radical/cation) interactions is proposed to obtain semiconductors with photoresponsive ranges covering the whole UV-SWIR (ultraviolet-shortwave near-infrared; ca. 250-3000 nm) region. With this strategy, a viologen-based molybdate semiconductor with a UV-SWIR photoresponsive range was obtained through UV/X-ray irradiation or thermal annealing. The thermally annealed semiconductor has the highe...
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#1Louise Ruyet (CNRS: Centre national de la recherche scientifique)H-Index: 2
#2Maria I. Lapuh (CNRS: Centre national de la recherche scientifique)H-Index: 1
Last. Tatiana Besset (CNRS: Centre national de la recherche scientifique)H-Index: 26
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A straightforward 2,2,2-trifluoroethylation of acrylamides by Pd-catalyzed C-H bond activation was reported by using a fluorinated hypervalent iodine reagent as a coupling partner. At room temperature, this additive-free approach allowed the synthesis of Z-2,2,2-trifluoroethylated acrylamides (19 examples, up to 73% yield) in a stereoselective manner. Under these mild reaction conditions, the methodology turned out to be functional group tolerant and mechanistic studies gave us a better understa...
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#1Yueying Li (SDNU: Shandong Normal University)H-Index: 4
#2Qian Liu (SDNU: Shandong Normal University)
Last. Chun-yang Zhang (SDNU: Shandong Normal University)H-Index: 48
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We demonstrate the zirconium ion-mediated assembly of a single quantum dot (QD)-based nanosensor for accurate detection of protein kinases (PKA) and polynucleotide kinases (PNK). This nanosensor is very sensitive with a detection limit of 8.82 × 10-4 U mL-1 for PKA and 1.40 × 10-5 U mL-1 for PNK. Moreover, it can be used to analyze the enzyme kinetic parameters and screen the inhibitors of PKA and PNK, with potential applications in drug discovery and clinical diagnosis.
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#1Keisuke Awaya (Kumamoto University)H-Index: 3
Last. Shintaro Ida (Kumamoto University)H-Index: 32
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The present study demonstrated delamination of the layered silicate RUB-18 with no organo-modification of the silanol group. The obtained nanosheets showed a homogeneous thickness. A sponge-like material and a free-standing transparent, dense membrane were reconstructed using the nanosheets.
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#1Huang Zengqi (Jiangxi Normal University)
#2Juan Long (NCU: Nanchang University)H-Index: 4
Last. Yiwang Chen (Jiangxi Normal University)H-Index: 60
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A washable perovskite solar cell with high efficiency (over 11%) and outstanding crumpling durability (maintaining 81.2% after 100 cycles crumpling) is demonstrated herein by combining the flexible self-encapsulation method with a waterproof glue coated substrate.
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