The Non-Wandering Sets of Anti-Triangular Maps &lt;I&gt;F&lt;/I&gt;(&lt;I&gt;x&lt;/I&gt;, &lt;I&gt;y&lt;/I&gt;) = (&lt;I&gt;y&lt;/I&gt;, &lt;I&gt;F&lt;/I&gt;(&lt;I&gt;x&lt;/I&gt;))

Zhang, Geng Rong; Li, Rui Hong; Zeng, Fan Ping

doi:10.1166/asl.2013.4439

Cited by 10 publications

(13 citation statements)

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“…As shown in Figure 3 e, the diffraction peaks around 9°, 33°, and 57°could be attributed to the (002), (100), and (110) planes of 1T MoS 2 . [27,48,51] After annealed at 650°C for 2 hours under argon atmosphere, the sample showed characteristic peaks consistent with the standard card (JCPDS No.37-1492) of 2H MoS 2 . In particular, the layer spacing of 2H MoS 2 is reduced.…”

Section: Resultssupporting

confidence: 58%

Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

2019

ChemistrySelect

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In this work, a low cost and high yield method is proposed to synthesize 1T phase MoS2 nanoflowers (NFs) by means of anion exchange using MoO3 nanosheets as the exchange template. The synthesized MoS2 NFs are composed of ultrathin MoS2 nanoflakes with plenty of active edge sites, large specific surface area, and rich defects, as well as reduced intrinsic resistance. Therefore, they show enhanced hydrogen evolution reaction (HER) activity with an overpotential of 166 mV at 10 mA cm−2 and Tafel slope of 47 mV dec−1, better than those of previously reported MoS2‐based HER catalysts. A systematic study is carried out on the effects of mass loading and reaction temperature on its catalytic performance. It is shown that, with reaction temperature of 200 °C and mass loading of 0.43 mg cm−2, the obtained MoS2 NFs show the optimal HER activity. The present work provides a facile and cost‐effective way to synthesize 1T MoS2 NFs with advanced HER performances, indicating significant potential for larger‐scale production in practical industrial applications.

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Section: Resultssupporting

confidence: 58%

Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

2019

ChemistrySelect

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“…Materials R-and S21,1 0 -Bis[4-isopropyloxazolin-2-yl]-ferrocenes were prepared according to literature procedure. 21 Chiral ferrocene derivatives 6b-RR and 8b-SS were synthesized following the literature methods. 22 Characterizations 1 H and 13 C NMR spectra were recorded using a Varian 400 Unity plus (400 MHz) at ambient temperature.…”

Section: Methodsmentioning

confidence: 99%

“…Enantiomers of diols 10a were prepared from the corresponding chiral bisoxazoles 4 and 5, respectively. 21,22 Treatment of 4 with sec-BuLi in the presence of TMEDA followed by Cl 3 CCCl 3 gave the corresponding 6a-RR in 49% yield. 23 Similarly, 8a-SS was obtained in 52% yield from 5.…”

Section: Synthesismentioning

confidence: 99%

“…When MeI was used as the electrophile, the corresponding methylated derivative 6b-RR (68%) or 8b-SS (70%) was obtained from 4 or 5, respectively. 21 After lithiation of 4, transmetallation with anhydrous ZnCl 2 afforded the corresponding zinc reagent which was allowed to react with iodobenzene in the presence of 10 mol% of Pd(PPh 3 ) 4 to give 6c-RR in 60% yield. In a similar manner, 8c-SS was synthesized from 5 in 62% yield.…”

Section: Synthesismentioning

confidence: 99%

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Double‐stranded ladderphanes with C₂‐symmetric planar chiral ferrocene linkers

Zhang

Liu

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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Eight ladderphanes with C 2 -symmetric planar chiral ferrocene linkers are synthesized by ring opening metathesis polymerization of bisnorbornene monomers using Grubbs-I catalyst. The aminobenzoate in both monomers and polymers shows absorption maximum around 320 nm. Both monomers and polymers are Circular dichroism (CD) active. Little enhancements of CD profiles around 320 nm are observed for ladderphanes having chiral chloro-or phenyl-substituted ferrocene linkers. However, ladderphanes with a phenyl substituent on the cyclopendienyl ring exhibits enhancement of CD curves aound 240-300 nm. The congested phenyl moieties in adjacent linkers in this polymer might be well oriented such that interactions between these aromatic substituents on different monomeric units might provoke the enhancement of the CD curves in this region. When the methyl-substituted cyclopendienyl ligand is used for chiral ferrocene linkers, the ladderphanes exhibit two-fold enhancement of CD spectrum around 320 nm. This enhancement is further increased when the cyclopentadienyl ligand contains an additional phenyl substituent, owing to exciton coupling between aminobenzoate moieties in adjacent monomeric units. Moreover, the intensity of the CD curves in the region of 240-300 nm is significantly increased. These results suggest that the later polymer may adopt a posible helical structure.

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“…In addition, the performances of the long-range corrected DHDFs are generally good for noncovalent interactions. [10,19,35] Although the XYG3 [12] and XYGJ-OS [13] functionals were fitted against the heats of formation data from experiments, they performed very well on noncovalent interactions. [73][74][75] We have tried to treat noncovalent interactions only within the framework of the DHDF, and further dispersion corrections or correlations are not needed anymore.…”

Section: Introductionmentioning

confidence: 99%

Comparison of one‐parameter and linearly scaled one‐parameter double‐hybrid density functionals for noncovalent interactions

2016

Int J of Quantum Chemistry

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We have compared the performances of the one‐parameter and linearly scaled one‐parameter double‐hybrid density functionals (1DH‐DFs and LS1DH‐DFs) for noncovalent interactions. The only one parameter related to the Hartree–Fock (HF) exchange for each of the tested 1DH‐DFs and LS1DH‐DFs has been fitted with the well‐designed S66 database. The obtained DHDFs are dubbed as 1DH‐PBE‐NC, LS1DH‐PBE‐NC, 1DH‐TPSS‐NC, LS1DH‐TPSS‐NC, 1DH‐PWB95‐NC, and LS1DH‐PWB95‐NC, where “NC” denotes noncovalent interactions. With a specific combination of exchange and correlation functionals, the dependent parameters related to the nonlocal second‐order perturbative energies are nearly identical for the 1DH and LS1DH models. According to our benchmark computations against the S66, S22B, NCCE31, ADIM6, and L7 databases, we suggest that the 1DH‐PWB95‐NC and LS1DH‐PWB95‐NC functionals are much more suitable for evaluating noncovalent interaction energies. Unlike the versatile DHDFs with dispersion corrections for general purpose, our optimized 1DH‐DFs and LS1DH‐DFs only aim at noncovalent interactions. © 2016 Wiley Periodicals, Inc.

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The Non-Wandering Sets of Anti-Triangular Maps <I>F</I>(<I>x</I>, <I>y</I>) = (<I>y</I>, <I>F</I>(<I>x</I>))

Cited by 10 publications

References 0 publications

Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Double‐stranded ladderphanes with C₂‐symmetric planar chiral ferrocene linkers

Comparison of one‐parameter and linearly scaled one‐parameter double‐hybrid density functionals for noncovalent interactions

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The Non-Wandering Sets of Anti-Triangular Maps <I>F</I>(<I>x</I>, <I>y</I>) = (<I>y</I>, <I>F</I>(<I>x</I>))

Cited by 10 publications

References 0 publications

Facial Synthesis of 1T Phase MoS2 Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Facial Synthesis of 1T Phase MoS2 Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Double‐stranded ladderphanes with C2‐symmetric planar chiral ferrocene linkers

Comparison of one‐parameter and linearly scaled one‐parameter double‐hybrid density functionals for noncovalent interactions

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Product

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Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Facial Synthesis of 1T Phase MoS₂ Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution

Double‐stranded ladderphanes with C₂‐symmetric planar chiral ferrocene linkers