The aluminyl anion K[Al(NON)] {NON = [O(SiMeNDipp)]; Dipp = 2,6-PrCH} engages in oxidative additions with the E-H (E = Si, P, N, or O) bonds of phenylsilane (PhSiH), mesityl phosphane (MesPH; Mes = 2,4,6-MeCH), 2,6-di--propylaniline (DippNH), and 2,6-di--butyl-4-methylphenol (ArOH). The resulting (hydrido)aluminate salts are formed regardless of the E-H bond polarity. All of the products were characterized by nuclear magnetic resonance and infrared spectroscopic techniques and single-crystal X-ray diffraction. This study highlights the versatility of aluminyl anions to activate hydridic, acidic, and (essentially) nonpolar E-H bonds.
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http://dx.doi.org/10.1021/acs.inorgchem.0c03735 | DOI Listing |
Environ Health (Wash)
December 2024
School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China.
To clarify the effect of the fluorine atom and piperazine ring on norfloxacin (NOR), NOR degradation products (NOR-DPs, P1-P8) were generated via UV combined with hydrogen peroxide (UV/HO) technology. NOR degradation did not significantly affect cytotoxicity of NOR against BV2, A549, HepG2, and Vero E6 cells. Compared with that of NOR, mutagenicity and median lethal concentration of P1-P8 in fathead minnow were increased, and bioaccumulation factor and oral median lethal dose of P1-P8 in rats were decreased.
View Article and Find Full Text PDFEnviron Health (Wash)
September 2024
College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Rd., Tianjin 300350, People's Republic of China.
Cadmium-bearing nanoparticles, such as nanoparticulate cadmium selenide (CdSe) and cadmium sulfide (CdS), widely exist in the environment and originate from both natural and anthropogenic sources. Risk assessment of these nanoparticles cannot be accurate without taking into account the properties of the protein corona that is acquired by the nanoparticles upon biouptake. Here, we show that the compositions of the protein corona on CdSe/CdS nanoparticles are regulated collectively by the surface atomic arrangement of the nanoparticles and the abundance and distribution of cysteine moieties of the proteins in contact with the nanoparticles.
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