Irradiation of nitrosyl bromide BrNO (4) with light of the wavelength lambda = 248 nm and nitrosyl chloride CINO (6) with lambda = 193 nm in an argon matrix at 10 K leads to the corresponding isomers isonitrosyl bromide BrON (5) and isonitrosyl chloride CION (7). Both new compounds 5 and 7 have been identified by comparison of the experimental and calculated (BLYP/6-311 + G*) IR spectra. Nitrosyl fluoride FNO (8) could not be transferred into isonitrosyl fluoride FON (9). The back reactions 5-->4 and 7-->6 can be initiated by UV (lambda > 310 nm), visible or IR light. The retransformation also occurs spontaneously in the matrix at 10 K under exclusion of any UV/Vis or IR radiation. Surprisingly, the reaction rates of these spontaneous back reactions are temperature independent between 8.5 and 25 K. The mechanism of these processes is discussed.
Such a simple compound, and yet only now has HON (2) been prepared for the first time in a matrix at 10 K in a manner analogous to that applied many years ago for HNO (1), which is important for combustion processes, atmospheric chemistry, astrophysics, and particularly theoretical chemistry. A photoequilibrium exists in the matrix between 2 and 1.
COMMUNICATIONS dried in vacuo with toluene twice to remove any remaining solvent and water. The dried resin was weighed and used in the screening procedure. The resin-supported ligand (0.02 mmol) was placed in a dried test tube with a rubber septum under an argon atmosphere. Ti(OiPr), (0.1 M in toluene, 200 pL, 0.02 mmol) was added and allowed to stand for 1 h. Subsequently, cyclohexene oxide ( 1 . 0~ in toluene, 200 pL, 0.2 mmol) and TMSCN ( 1 . 0~ In toluene 200 pL, 0.2 mmol) were added, and the reaction was gently agitated for 20 h (4 "C). The reaction was quenched by addition of Et,O ( I .O mL), and the solution forced through a silica gel plug with additional Et,O (1.0 mL). Reaction selectivity was determined by GLC analysis (BE-TADEX 120 chiral column).
Nickel ferrites have been produced by the rf plasma deposition technique for the first time. This technique has promise for large scale fine particle production of ferrites. Powder x-ray diffraction linewidth measurements show an average particle size of about 55 nm. Mossbauer measurements show the presence of both the nickel ferrite and the nickel zinc ferrite with Fe3O4 created in each ferrite production process as an impurity. Magnetization and Mössbauer measurements show evidence that the aerosol prepared samples have small particle characteristics as compared to solid state reacted bulk materials.
Background: The World Anti-Doping Agency (WADA) specifies substances that competitive sportspersons are not allowed to take. Some of these substances are contained in common medicines used in everyday medical practice and could be used by athletes by accident. Objectives: This study aimed to explore pharmacists’ knowledge and confidence in guiding athletes about the use of medicines in professional sport. Methods: Registered pharmacists in Australia were invited to participate in an online survey. The survey had five domains and aimed to identify pharmacists’ demographic information, interest in sport, familiarity with WADA guidelines, knowledge on prohibited drug classes, and their opinion about the role of pharmacists in educating athletes on medication use. Descriptive statistics were provided and where appropriate, Chi-square, Mann–Whitney and independent t-test were used to identify potential associations and difference between means. Results: One hundred and thirty-five pharmacists (response rate of 10.6%) completed the survey, with the majority indicating that they were not confident in advising athletes on medication use. Although most respondents believed that pharmacists have a role in the education of athletes to help avoid unintentional doping, only about a quarter indicated that they had sufficient knowledge to advise athletes. About one-half of the respondents could provide fully correct answers when asked to identify the WADA status of some commonly used drugs. Conclusions: The results of the survey indicate that upskilling is required to enable pharmacists in Australia to provide accurate medication advice to professional athletes.
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