The reversible transformation of substrates by several electron equivalents is a key goal of chemical energy storage. Toward this aim, extensive effort has been devoted to study catalysts that mediate the multi-electron reduction of substrates including protons, CO2 and N2. 2 In order to achieve such transformations with minimal energy input, catalysts that operate at low overpotentials are des...

In order to verify if the triptycyl (the analog of triphenylmethyl in which the three phenyl groups were united to a CH) free radical 1a (Fig. 2.1) should be more instable than the triphenylmethyl radical itself, Bartlett et al. [1] first synthesized triptycene 1 in a low total yield by a multistep route starting from the Diels–Alder addition reaction of anthracene and benzoquinone (Scheme 2.1)...

Studies to evaluate more than 100 compounds as inhibitors of urease activity in soils showed that dihydric phenols and quinones were the most effective organic compounds tested and that silver and mercury salts were the most effective inorganic compounds. When the most potent inhibitors were compared using 50 1'8 of inhibitor per g of soil, their effectiveness decreased in the order: catechol >...

Chronic exposure of humans to benzene (BZ) causes acute myeloid leukemia (AML). Both BZ and therapy-related secondary AML are characterized by chromosomal translocations that may occur by inappropriate recombinational events. DNA topoisomerase II (topo II) is an essential sulfhydryl (SH)-dependent endonuclease required for replication, recombination, chromosome segregation, and chromosome struc...

Selective syntheses are now available for compounds of many classes, based on C-centered radicals, exploiting a diverse range of mechanisms. The prospect for chemistry based around N- and O-centered radicals is probably more favorable because of the importance of heterocycles as biologically active materials. Heteroradical chemistry is still comparatively underdeveloped due to the need for safe...

Reactive methylene group at C2 position in dimedone plays an important role in the synthesis of a variety of organic ligands. Condensed compounds 3, 5, 7 were synthesized by reaction with dimedone and different aromatic aldehydes. Synthesized condensed compounds 3, 5 and 7 were on reaction with hydroxyl amine hydrochloride to yield oximes ligands 8, 9 and 10 respectively. The synthesized oxime ...

Open AccessCCS ChemistryCOMMUNICATION1 Aug 2021Ring-Shaped Polyoxometalate Built by {Mn4PW9} and PO4 Units for Efficient Visible-Light-Driven Hydrogen Evolution Hai-Lou Li, Mo Zhang, Chen Lian, Zhong-Ling Lang, Hongjin Lv Guo-Yu Yang Li MOE Key Laboratory of Cluster Science, School Chemistry Chemical Engineering, Beijing Institute Technology, 102488 Google Scholar More articles this author , Zh...