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2861por Liu, Zhonghuan, Peng, Wei, Lin, Yuhan, Lin, Xinyu, Yin, Shikang, Jia, Shuhan, Ma, Dongge, Yan, Yan, Zhou, Peng, Ma, Wanhong, Zhao, Jincai“…At low water content (<1.7 wt%), the photo-induced single-proton/single-electron transfer on TiO(2) nanoparticles follows a stepwise PT/ET pathway with the formation of high-energy H(+)/D(+)–O[double bond, length as m-dash]C or H(+)/D(+)–O–C intermediates, resulting in an inverse KSIE (H/D) ∼0.5 with (t)Bu(3)ArO· and KSIE (H/D) ∼1 with TEMPO in methanol-d(0)/d(4) systems. …”
Publicado 2023
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2862“…Using density functional theory (DFT) B3PW91/TZVP, M06/TZVP, and OPBE/TZVP chemistry models and the Gaussian09 program, a quantum-chemical calculation of geometric and thermodynamic parameters of Ni(II), Cu(II), and Zn(II) macrotetracyclic chelates, with (NNNN)-coordination of ligand donor centers arising during template synthesis between the indicated ions of 3d elements, thiocarbohydrazide H(2)N–HN–C(=S)–NH–NH(2) and diacetyl Me–C(=O)–C(=O)–Me, in gelatin-immobilized matrix implants was performed. …”
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2863“…During polymerisation, Ti-O-C linkages were formed, which favoured the adsorption and photocatalytic degradation of the target methylene blue dye. …”
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2864Synthesis of Renewable High-Density Fuel with Vanillin and Cyclopentanone Derived from Hemicellulosepor Wang, Wei, An, Ling, Qian, Chi, Li, Yanqing, Li, Meiping, Shao, Xianzhao, Ji, Xiaohui, Li, Zhizhou“…Over the optimized condensation, a high carbon yield (82.6%) of 2,5-bis(4-hydroxy-3-methoxybenzylidene) cyclopentanone was achieved at 80 ºC. In the second step, 2,5-bis(4-hydroxy-3-methoxybenzylidene) cyclopentanone was hydrodeoxygenated over the Pd/HY catalyst in cyclohexane as solvent. …”
Publicado 2023
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2865“…Additionally, E212 remained stable at all pH levels (3.0–12.0) and temperatures between -20 and 60 ºC. The genome of the phage E212 consists of 38,252 bp dsDNA molecule with a G + C content of 46.98%. …”
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2866por Zhou, Yong-Jun, Fang, Yong-Gan, Yang, Kai, Lin, Jian-Yun, Li, Huan-Qing, Chen, Zu-Jia, Wang, Zhao-Yang“…This new approach has demonstrated the functionalization of non-aromatic C(sp2)-X-type halides with unique structures containing C-X, C-O, C=O and C=C bonds. Compared with traditional synthesis methods using transition metal catalysts with ligands, this reaction has many advantages, such as the lower temperature, the shorter reaction time, the wide substrate range and good functional group tolerance. …”
Publicado 2023
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2867por Pearcy, Aston C., Lisboa, Lynn S., Preston, Dan, Page, Nick B., Lawrence, Tristan, Wright, L. James, Hartinger, Christian G., Crowley, James D.“…NMR studies suggested that these guests interacted with the cavity of the cage in a specific orientation and this was confirmed for the mesylate ion (MsO(−)) : C host–guest adduct using X-ray crystallography. …”
Publicado 2023
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2868“…This increased the proportion of hydrophilic functional groups on the surface of carbon fibers, increased the O/C ratio on the CF surface by 6 times, and improved the bond strength between the modified CF and the adhesive by making full use of the interaction force between polydopamine and PVA fibers. …”
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2869por Wei, Shuyin, Zeng, Feng, Zhou, Yingyue, Zhao, Jiawei, Wang, Hao, Gao, Rui, Liang, Weiqian“…The results showed that the adsorption of EPS on PSMPs was in the order of TB-EPS > LB-EPS > S-EPS, which was positively correlated with the SUVA(254), but negatively correlated with O/C of EPS. This indicates that the main adsorption mechanisms of PSMPs on EPS were π–π and hydrophobicity. …”
Publicado 2023
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2870“…At low oxygen coverage, Si–O–C bond formation was observed as well as atomistic wear initiated from C–C bond breaking at extreme pressure. …”
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2871por Zhang, Chen, Ji, Ying, Li, Chunchun, Zhang, Yingrui, Sun, Shuzhuang, Xu, Yikai, Jiang, Long, Wu, Chunfei“…A high surface area and pore volume of biochar resulted in an enhanced CO(2) capture capacity. Furthermore, the O*/C ratio and pore width show a negative correlation with the CO(2) capture capacity of biochars.…”
Publicado 2023
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2872“…The host and guest interact via C—H⋯O, C—H⋯Br and C—H⋯π interactions and adjacent host molecules interact via C—H⋯O and C—H⋯π bonds. …”
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2873“…Here, we demonstrate protection of P. chlororaphis from freeze-drying, high temperatures (50 (o)C), and high humidity using self-assembling metal-phenolic network (MPN) coatings. …”
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2874“…The incidence of hormonally-induced gynandromorphism was low (0.14% at the maximum stimulatory hormone concentrations) but was significantly increased (46-fold) when the animals were hormone-treated at 30(o)C. Some environmental chemicals also can stimulate the gynandromorphic phenotype as we demonstrated with the insecticide pyriproxyfen. …”
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2875por Berjano, Enrique J, Navarro, Enrique, Ribera, Vicente, Gorris, Javier, Alió, Jorge L“…Firstly, we point out that TKP techniques are a complex challenge from the engineering point of view, due to the fact that it is necessary to create very localized heating in a precise location (central stroma), within a narrow temperature range (from 58 to 76ºC). Secondly, we describe the different applicator designs (i.e. …”
Publicado 2007
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2876“…The crystal structure of the title compound, [Co(C(7)H(5)O(3))(C(12)H(8)N(2))(2)(H(2)O)](C(7)H(5)O(3))·5H(2)O, consists of Co(II) complex cations, uncoordinated hydroxybenzoate anions and uncoordinated water molecules. …”
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2877“…This conformation is also shown by the O—C—C—O torsion angle of −110.65 (12)°. An unusual feature of the structure is the length, 1.536 (2) Å, of the central C—C bond connecting the carbonyl units, which is significantly longer than a normal Csp (2)—Csp (2) single bond. …”
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2878“…The crystal structure is further stabilized by weak intermolecular C—H⋯O, C—H⋯π and π–π [centroid–centroid distances 3.6416 (13)–3.8705 (14) Å] interactions.…”
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2879por Gul, Waseem, Carvalho, Paulo, Galal, Ahmed, Avery, Mitchell A., El Sohly, Mahmoud A.“…The six-membered C(3)O(3) ring containing the ether and peroxy functionalities has a distorted boat conformation, with a C—O—O—C torsion angle of 42.6 (1)° for the peroxy group. …”
Publicado 2009
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2880“…The title organic molecule is a phenol–imine tautomer, as evidenced by the C—O, C—N and C—C bond lengths. Molecules are linked by intermolecular C—H⋯O hydrogen bonds that generate a C(5) chain. …”
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