Wen‐Hua Sun
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View article: Alkali metal fluoride synergistically passivates the buried interface to achieve high-efficiency and stable all-inorganic CsPbBr<sub>3</sub> perovskite solar cells
Alkali metal fluoride synergistically passivates the buried interface to achieve high-efficiency and stable all-inorganic CsPbBr<sub>3</sub> perovskite solar cells Open
View article: 2-(5-Phenylpyrazol-3-yl)-8-arylimino-5,6,7-trihydroquinolyliron Chlorides as Precatalysts for Ethylene Oligomerization
2-(5-Phenylpyrazol-3-yl)-8-arylimino-5,6,7-trihydroquinolyliron Chlorides as Precatalysts for Ethylene Oligomerization Open
A series of 2-(5-phenylpyrazol-3-yl)-8-arylimino-5,6,7-trihydroquinolyliron chlorides (Fe1–Fe6) have been prepared and characterized by FT-IR spectra and elemental analysis. In single-crystal X-ray crystallography, Fe4 shows a distorted tr…
View article: CCDC 2443376: Experimental Crystal Structure Determination
CCDC 2443376: 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 …
View article: Effect of chloride substitution on the performance of a benzhydryl-substituted bis(arylimino)pyridyl–cobalt ethylene polymerization catalyst
Effect of chloride substitution on the performance of a benzhydryl-substituted bis(arylimino)pyridyl–cobalt ethylene polymerization catalyst Open
To address the impact of chloride substitution on the performance of a benzhydryl-substituted bis(arylimino)pyridyl–cobalt ethylene polymerization catalyst, this work reports a new family of unsymmetrical N' , N' , N'' -cobalt(II) chloride…
View article: Synthesis of New Phenoxide-Modified Half-Titanocene Catalysts for Ethylene Polymerization
Synthesis of New Phenoxide-Modified Half-Titanocene Catalysts for Ethylene Polymerization Open
A series of half-titanocenes containing different trialkylsilyl para-phenoxy substituents, Cp*TiCl2(O-2,6-iPr2-4-R-C6H2) [Cp* = C5Me5; R = Si(n-Bu)3 (5), SiMe2(n-C8H17) (6), SiMe2(t-Bu) (7)], were prepared and identified. Catalytic activit…
View article: Chromosome-Level Genome Announcement of the Monokaryotic Pleurotus ostreatus Strain PC80
Chromosome-Level Genome Announcement of the Monokaryotic Pleurotus ostreatus Strain PC80 Open
Pleurotus ostreatus is a widely cultivated edible fungus in China, renowned for its rich nutritional composition and diverse medicinal compounds. However, the quality of the currently published P. ostreatus genomes remained suboptimal, whi…
View article: Synthesis of New Phenoxide Modified Half-Titanocenes for Ethylene Polymerization
Synthesis of New Phenoxide Modified Half-Titanocenes for Ethylene Polymerization Open
A series of half-titanocenes containing different trialkylsilyl para-phenoxy substituents, Cp*TiCl2(O-2,6-iPr2-4-R-C6H2) [Cp* = C5Me5; R = Si(n-Bu)3 (5), SiMe2(n-C8H17) (6), SiMe2(t-Bu) (7)], have been prepared and identified. The catalyti…
View article: <i>ortho/para</i>-Chlorinated α-Diimine Nickel Precatalysts Resulting Polyethylenes with Improved Mechanical Properties and Controlled Crystallinity
<i>ortho/para</i>-Chlorinated α-Diimine Nickel Precatalysts Resulting Polyethylenes with Improved Mechanical Properties and Controlled Crystallinity Open
A series of ortho/para-chlorinated N-(6-benzhydryl-2,4-dichlorophenylimino)-N'-aryliminoacenaphthylene derivatives as ligands (L1-L6, aryl = 2,6-dimethylphenyl (L1), 2,6-diethylphenyl (L2), …
View article: Trifluoromethoxy- and Fluorobenzhydryl-Tuned Nickel Catalysts for Polyethylene Elastomers
Trifluoromethoxy- and Fluorobenzhydryl-Tuned Nickel Catalysts for Polyethylene Elastomers Open
A series of para-trifluoromethoxy-substituted and fluorobenzhydryl-functionalized 1,2-bis(imine)acenaphthene ligands: 1-[2,6-{(4-F-C6H4)2CH}2-4-F3COC6H2N]-2-(ArN)C2C10H6 (Ar = 2,6-Me2C6H3 L1, 2,6-Et2C6H3 L2, 2,6-iPr2C6H3 L3, 2,4,6-Me3C6H2 …
View article: Enhanced Activity and Thermal Stability of Hydroxyl‐Modified Bis(imino)pyridylcobalt Catalysts for Ethylene Polymerization
Enhanced Activity and Thermal Stability of Hydroxyl‐Modified Bis(imino)pyridylcobalt Catalysts for Ethylene Polymerization Open
Bulky N‐aryl substituents in bis(imino)pyridylmetal catalysts enhance the ethylene polymerization, though maintaining activity at higher temperature remains a challenging point. Herein, the newly synthesized symmetrical and unsymmetrical 2…
View article: Chromosome-level genome assemblies of Verpa bohemica and Verpa conica
Chromosome-level genome assemblies of Verpa bohemica and Verpa conica Open
View article: Dinuclear Macrocyclic Bis(iminopyridyl) Co- and Fe-Based Catalysts for Ethylene Oligomerization
Dinuclear Macrocyclic Bis(iminopyridyl) Co- and Fe-Based Catalysts for Ethylene Oligomerization Open
Recent advances in designing multinuclear late transition metal catalysts for the oligo-/polymerization of olefins emphasize the great interest and promising approaches in the preparation and application of these catalytic systems. Accordi…
View article: Tuning 2,3-Bis(arylimino)butane-nickel Precatalysts for High-Molecular-Weight Polyethylene Elastomers
Tuning 2,3-Bis(arylimino)butane-nickel Precatalysts for High-Molecular-Weight Polyethylene Elastomers Open
The catalytic performance of α-diiminonickel complexes is highly sensitive to structural modifications in their ligand frameworks. In this study, a series of unsymmetrical 2,3-bis(arylimino)butane-nickel complexes featuring ortho-2,6-diben…
View article: Functional Polylactides Achieved by Iron‐Catalyzed (Co)Polymerization of Different Lactides
Functional Polylactides Achieved by Iron‐Catalyzed (Co)Polymerization of Different Lactides Open
Polylactides are important biodegradable and environment‐friendly materials with monomers being from bio‐sources, being enhanced their applicable properties with higher hydrophilicity as well as more side‐chain groups. Using iron complex c…
View article: Finely-Tuned Bis(imino)pyridylcobalt Complexes Enhance Ethylene Polymerization: The Role of Bulky and Halogen Substituents
Finely-Tuned Bis(imino)pyridylcobalt Complexes Enhance Ethylene Polymerization: The Role of Bulky and Halogen Substituents Open
The bis(imino)pyridylcobalt complexes have been finely tuned through using the aniline derivative bearing a meta-chloro substituent, besides its ortho- and para-di(4-fluorophenyl)methyl and ortho-methyl substituents for the series of 2-[1-…
View article: Avoiding $\mathbf{exp(R_{max})}$ scaling in RLHF through Preference-based Exploration
Avoiding $\mathbf{exp(R_{max})}$ scaling in RLHF through Preference-based Exploration Open
Reinforcement Learning from Human Feedback (RLHF) has emerged as a pivotal technique for large language model (LLM) alignment. This paper studies the setting of online RLHF and focus on improving sample efficiency. All existing algorithms …
View article: Modulation of 2-imino-6,7-dihydroquinlin-8(5<i>H</i>)-imine-iron ethylene polymerization catalysts through (cyclo)alkyl, benzhydryl and halide substitution
Modulation of 2-imino-6,7-dihydroquinlin-8(5<i>H</i>)-imine-iron ethylene polymerization catalysts through (cyclo)alkyl, benzhydryl and halide substitution Open
The depicted benzhydryl-containing Fe catalysts appended with ortho -C n H 2 n −1 ( n = 5, 6, 8) and ortho -halide groups, showed high activity/thermostability for C 2 H 4 polymerization.
View article: 1,2-Diaminocyclohexane-derived chiral tetradentate ligands for Mn(<scp>i</scp>)-catalyzed asymmetric hydrogenation of ketones
1,2-Diaminocyclohexane-derived chiral tetradentate ligands for Mn(<span>i</span>)-catalyzed asymmetric hydrogenation of ketones Open
A tetradentate ligand-constituted manganese-based catalyst was successfully employed for the asymmetric hydrogenation of ketones to chiral alcohols.
View article: High molecular weight polyethylene <i>via</i> the spatial proximity of benzosuberyl in iminopyridine nickel catalysts
High molecular weight polyethylene <i>via</i> the spatial proximity of benzosuberyl in iminopyridine nickel catalysts Open
Iminopyridine nickel catalysts are typically gave low molecular weight PE. Upon activation with MAO, the prepared nickel complexes exhibited significantly high molecular weights PE of 56–182 kg mol −1 with narrower dispersity of 1.5–1.8.
View article: Correlating electronic properties of a nickel polymerisation catalyst with the branching density of a polyethylene
Correlating electronic properties of a nickel polymerisation catalyst with the branching density of a polyethylene Open
Electronic tuning of the para -R group of the Ni precatalyst allows a means to regulate the branching density and the M w of the PE. The E 1/2 value of the precatalyst has been used as a quantitative descriptor of this electronic effect.
View article: A Novel Computational Method for Studying Electrostatic Interactions of Functional Groups within Difunctional Molecules: A Case of Glycine
A Novel Computational Method for Studying Electrostatic Interactions of Functional Groups within Difunctional Molecules: A Case of Glycine Open
View article: Quasi-Photonic Crystals-Boosted Highly Efficient Mxene Photothermal Materials for Untethered Actuators and Therapeutics
Quasi-Photonic Crystals-Boosted Highly Efficient Mxene Photothermal Materials for Untethered Actuators and Therapeutics Open
View article: Fluoro- & trifluoromethoxy-modified bis(imino)pyridyliron chloride enhancing the activity and stability of vinyl polyethylenes
Fluoro- & trifluoromethoxy-modified bis(imino)pyridyliron chloride enhancing the activity and stability of vinyl polyethylenes Open
High-performance multi-fluorine-substituted bis(imino)pyridyl Fe catalysts for ethylene polymerization achieve peak activity of 17.28 × 10 6 g (PE) mol −1 (Fe) h −1 at 70 °C showing excellent thermal stability and producing tailored-MW lin…
View article: 2-[2,6-Bis(4,4′-difluorobenzhydryl)-4-methylphenylimino]-3-aryliminobutylnickel complex precatalysts tuning polyethylene elastomers with different molecular weights
2-[2,6-Bis(4,4′-difluorobenzhydryl)-4-methylphenylimino]-3-aryliminobutylnickel complex precatalysts tuning polyethylene elastomers with different molecular weights Open
Unsymmetrical 2,3-bis(arylimino)butylnickel complexes exhibited high activity and yielded unimodal polyethylenes with diverse branches and controllable crystallinity from semi-crystalline to nearly amorphous structures.
View article: Correction: Axial-phenyl-constrained bis(imino)acenaphthene-nickel precatalysts enhance ethylene polymerization
Correction: Axial-phenyl-constrained bis(imino)acenaphthene-nickel precatalysts enhance ethylene polymerization Open
Correction for ‘Axial-phenyl-constrained bis(imino)acenaphthene-nickel precatalysts enhance ethylene polymerization’ by Quanchao Wang et al. , Polym. Chem. , 2024, https://doi.org/10.1039/d4py01110d.
View article: A Review of the Research Progress and Application of Geopolymer-biochar Composites
A Review of the Research Progress and Application of Geopolymer-biochar Composites Open
Geopolymer-biochar composites combine the durability and mechanical properties of geopolymers with the porous structure and adsorption properties of biochar, becoming a new type of composite material with wide application potential. This p…
View article: Achieving Linear α-Macro-olefins in Ethylene Polymerization through Precisely Tuned Bis(imino)pyridylcobalt Precatalysts with Steric and Electronic Parameters
Achieving Linear α-Macro-olefins in Ethylene Polymerization through Precisely Tuned Bis(imino)pyridylcobalt Precatalysts with Steric and Electronic Parameters Open
Synthesis of functional polyethylene from ethylene alone is tricky and heavily dependent on both the type and structure of the precatalyst and the choice of cocatalyst used in the polymerization. In the present study, a series of cobalt pr…
View article: Two near-chromosomal-level genomes of globally-distributed Macroascomycete based on single-molecule fluorescence and Hi-C methods
Two near-chromosomal-level genomes of globally-distributed Macroascomycete based on single-molecule fluorescence and Hi-C methods Open
View article: Intensive Cycloalkyl-Fused Pyridines for Aminopyridyl–Zinc–Heteroimidazoles Achieving High Efficiency toward the Ring-Opening Polymerization of Lactides
Intensive Cycloalkyl-Fused Pyridines for Aminopyridyl–Zinc–Heteroimidazoles Achieving High Efficiency toward the Ring-Opening Polymerization of Lactides Open
The model precatalyst sp3- and sp2-N dinitrogen-coordinated zinc–heteroimidazole has been used as an efficient catalyst for the ring-opening polymerization of cyclic esters. Subsequent to our exceptional active 5,6,7-trihydroquinolin-8-ami…
View article: Research on a Trellis Grape Stem Recognition Method Based on YOLOv8n-GP
Research on a Trellis Grape Stem Recognition Method Based on YOLOv8n-GP Open
Grapes are an important cash crop that contributes to the rapid development of the agricultural economy. The harvesting of ripe fruits is one of the crucial steps in the grape production process. However, at present, the picking methods ar…