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- ...roducts through the action of [[samarium(II) iodide]], a mild one-electron reducing agent.<ref name=OrgReact>{{cite book |last1=Molander |first1=Gary A.|title= ...rium(II) iodide and ytterbium iodide and their use as reducing or coupling agents|journal=Journal of the American Chemical Society |volume=102|pages=2693|yea ...17 KB (2,375 words) - 21:27, 29 August 2024
- ...also be generated in situ by reaction of one equivalent of zinc dust with one equivalent of [[copper(I) chloride]] (or copper powder) in refluxing [[diet ...r of reductive coupling of [[carbonyl compounds]], and to [[redox|reduce]] electron-deficient [[alkenes]] and [[alkynes]]. [[Sonication]] has been employed to ...5 KB (727 words) - 22:49, 31 March 2024
- ...shown to be effective in degrading certain chemical and biological warfare agents. ...halves. When these motors are placed in a fuel, such as hydrogen peroxide, one [[redox]] half-reaction occurs on each pole according to catalytic activity ...20 KB (2,721 words) - 16:41, 16 November 2024
- ...]] group from [[organic compound]]s. As the sulfonyl functional group is [[electron]]-withdrawing,<ref>{{Cite book|last1=Kharasch|first1=Norman|url=https://boo ...t)<sub>2</sub>). Alkyl, alkenyl, and allylic sulfones may be reduced using one or more of these methods. ...20 KB (2,705 words) - 05:09, 29 November 2024
- ...{chem2|[B3O6](3−)}}, consisting of alternating boron and oxygen atoms with one negatively charged extra oxygen atom attached to each boron atom.<ref name= ...th formula {{chem2|NaBO2}}, and some dimers thereof.<ref name=buch1963/> [[Electron diffraction]] studies by Akishin and Spiridonov showed a structure {{chem2| ...14 KB (1,910 words) - 22:03, 26 February 2025
- ...mant [[Chemical equilibrium|equilibria]] of which there might be more than one.<ref name="JenkinsJones2009">{{cite journal|vauthors=Jenkins AD, Jones RG, RDRP – sometimes misleadingly called 'free' radical polymerization – is one of the most widely used polymerization processes since it can be applied ...26 KB (3,465 words) - 09:48, 30 December 2023
- ...metal clusters typically contain fewer than 10 atoms and measure less than one nanometer in size.<ref>{{cite journal |last1=Lu |first1=Yan |last2=Chen |fi ...number of [[atom]]s in the nanocluster, [[valence (chemistry)|valence]] [[electron]] counts and encapsulating scaffolds.<ref>{{Cite journal|last1=Ott|first1=L ...35 KB (4,911 words) - 03:45, 11 January 2025
- ...143629 | doi-access = free }}</ref> Some authors classify formatotrophs as one of the five trophic groups of [[methanogen]]s, which also include [[hydroge ...h and is thermodynamically disfavored (△''G'' = +1.3 kJ /mol). So at least one methanogenic partner microorganism must be present to remove hydrogen. Some ...18 KB (2,281 words) - 04:29, 20 December 2024
- ...luorescent proteins to mark molecular mechanisms and structures. It allows one to experimentally observe the dynamics of [[gene expression]], protein expr ...substrate to produce light. Fluorescence is the physical excitation of an electron, and subsequent return to emit light. ...15 KB (2,171 words) - 17:52, 25 September 2024
- {{short description|Atom, molecule, or ion that has an unpaired valence electron; typically highly reactive}} ...The [[hydroxyl radical]], [[Lewis structure]] shown, contains one unpaired electron.]] ...41 KB (5,661 words) - 05:28, 1 March 2025
- ...ansport]] and attenuation mechanisms with the chemical nature of polluting agents.<ref name="Frega-Macchione">{{cite book |last1=Frega |first1=Giuseppe |last One major goal in the field of [[environmental protection]] and risk mitigation ...35 KB (4,732 words) - 16:57, 30 January 2024
- ...instrumentation. Titanium is used from head to toe in biomedical implants. One can find titanium in neurosurgery, bone conduction hearing aids, false eye ...between the metal and the surrounding environment.{{Citation needed|reason=One of the reason it is suitable for osseointegration is that bone tissues can ...17 KB (2,461 words) - 22:44, 19 February 2025
- ...f the hardness ions, (3) lower the operating pressure of the RO process by reducing the feed-water total dissolved solids (TDS) concentration. ...ugh the membrane will decrease and at a given flux, the TMP will increase, reducing the permeability (k). This phenomenon is known as '''[[membrane fouling|fou ...39 KB (5,513 words) - 07:12, 3 February 2025
- In the absence of K-edge contrast agents and any other information about the object (e.g. thickness), the limited nu ...ive atomic number (compounds and mixtures)|effective-atomic-number]] and [[electron density]] distributions.<ref name="Alvarez1976" /> As the basis-material re ...45 KB (6,113 words) - 06:42, 9 August 2024
- [[File:Configurations of 2 orbital 2 electron system.jpg|thumb|400px|Figure 1. The occupation of 2 orbitals with 2 electr </math> can be described as a single [[Electron configuration|electronic configuration]] with a single [[Slater determinant ...50 KB (6,656 words) - 03:38, 10 February 2025
- ...ional to wavelength (''ν=c/λ''), which can enable an electron to pass from one level to another if this energy is sufficient and therefore if the waveleng ...n window varies: in the presence of alkali metals, electrons can move from one band to the other more easily, as they are less bound to the non-bridging o ...70 KB (10,450 words) - 07:19, 26 February 2025
- ...all the external facets is proportional to the surface free energy of each one. This can be viewed as a relationship between the different surface energie ...d interface for the Winterbottom case, two interfaces for summertop and or one, two or three twin boundaries for the modified Wulff construction. Comparab ...58 KB (8,170 words) - 01:48, 30 January 2025
- ...|first2=Deyi |title=Manage the environmental risks of perovskites |journal=One Earth |date=November 2021 |volume=4 |issue=11 |pages=1534–1537 |doi=10.1016 ...[[exciton]] binding energy is small. This allows [[electron holes]] and [[electron]]s to be easily separated upon the absorption of a [[photon]]. Moreover, th ...222 KB (30,598 words) - 03:29, 28 February 2025
- ...n with TTF ([[Tetrathiafulvalene]])) is a chain molecule of almost perfect one-dimensional structure that has a 10-fold better conductivity along the chai ...that required the lowest possible ESR or highest possible ripple current. One OS-CON e-cap could replace three more bulky "wet" e-caps or two Ta-caps.<re ...105 KB (15,049 words) - 20:42, 7 December 2024
- ...ensitive to voltage spikes or current surges. Solid electrolytes have an ''electron conductivity'', which makes solid electrolytic capacitors sensitive to volt The capacitance is proportional to the product of the area of one plate multiplied with the permittivity, divided by the thickness of the die ...113 KB (16,198 words) - 09:18, 16 February 2025