Results 11 to 20 of about 1,010,497 (305)

Diverse reactivity of the gem-difluorovinyl iodonium salt for direct incorporation of the difluoroethylene group into N- and O-nucleophiles

open access: yesCommunications Chemistry, 2022
The gem-difluoroethylene moiety is considered as a valuable building block in organic synthesis, but methods to introduce it into small molecules are generally limited to specific substrates.
Chenxin Ge   +3 more
doaj   +1 more source

A facile and mild route for the preparation of holey phosphorene by low-temperature electrochemical exfoliation

open access: yesElectrochemistry Communications, 2021
Holey phosphorene, a novel type of nano-black phosphorus, has been theoretically predicted to have potential for a wide range of applications in catalysis, membrane separation and other fields.
Yuncai Jiang   +5 more
doaj   +1 more source

Enabling liquid crystal elastomers with tunable actuation temperature

open access: yesNature Communications, 2023
Liquid crystalline elastomers are regarded as a kind of desirable soft actuator material for soft robotics and other high-tech areas. The isotropization temperature (Ti) plays an important role as it determines the actuation temperature and other ...
Yanjin Yao   +6 more
doaj   +1 more source

Rhodium hydride enabled enantioselective intermolecular C–H silylation to access acyclic stereogenic Si–H

open access: yesNature Communications, 2022
Construction of chiral organosilicon compounds could have implications in photophysical, biological, and chemical fields, as silicon is isoelectronic with carbon, and can mimic carbon atoms while providing slightly different properties.
Kun An   +6 more
doaj   +1 more source

Direct electrophilic and radical isoperfluoropropylation with i-C3F7-Iodine(III) reagent (PFPI reagent)

open access: yesCommunications Chemistry, 2023
The isoperfluoropropyl group (i-C3F7) is an emerging motif in pharmaceuticals, agrichemicals and functional materials. However, isoperfluoropropylated compounds remain largely underexplored, presumably due to the lack of efficient access to these ...
Yaxing Wu   +4 more
doaj   +1 more source

Phosphorus nutrition of ectomycorrhizal and arbuscular mycorrhizal tree seedlings from a lowland tropical rain forest in Korup National Park, Cameroon [PDF]

open access: yes, 1998
The relationship between mycorrhizal colonisation and phosphorus acquired by seedlings of the arbuscular mycorrhizal tree Oubanguia alata Bak f. (Scytopetalaceae) and the ectomycorrhizal tree Tetraberlinia moreliana Aubr.
Alexander, I.J.   +2 more
core   +1 more source

Natural Product-Oriented Photo-Induced Denitrogenative Annulations of 1-Alkenylbenzotriazoles

open access: yesMolecules, 2023
The photo-induced denitrogenative annulations of a variety of 1-alkenylbenzotriazoles were investigated. By judiciously manipulating the structural variations of 1-alkenylbenzotriazoles, two characteristic polycyclic skeletons associated with monoterpene
Zhiguo Wang   +3 more
doaj   +1 more source

Donor behavior in indium-alloyed silicon [PDF]

open access: yes, 1970
The anomalous doping behavior of Si regrown from In solution was studied by (1) Schottky barrier evaluation of conductivity type, (2) electron microprobe analysis for phosphorus, and (3) channeling effect measurements for interstitial In.
Mayer, J. W., McCaldin, J. O.
core   +1 more source

Development of diverse adjustable axially chiral biphenyl ligands and catalysts

open access: yesiScience, 2023
Summary: Development of highly efficient and practical chiral ligands and catalysts is an eternal theme in asymmetric synthesis. Here, we report the design, synthesis, and evaluation of a new kind of adjustable axially chiral biphenyl ligands and ...
Jiyang Jie   +3 more
doaj   +1 more source

Effect of influent nutrient ratios and hydraulic retention time (HRT) on simultaneous phosphorus and nitrogen removal in a two-sludge sequencing batch reactor process [PDF]

open access: yes, 2009
A laboratory-scale anaerobic–anoxic/nitrification sequencing batch reactor (A2N- SBR) fed with domestic wastewater was operated to examine the effect of varying ratios of influent COD/P, COD/TN and TN/P on the nutrient removal.
Peng, Yongzhen   +2 more
core   +1 more source

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