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Radiative transition probabilities for 3p63d2 and 3p53d3 transitions in W54+ W54+中3p63d2和3p53d3跃迁的辐射跃迁概率
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2018-12-15 DOI: 10.33435/TCANDTC.391349
G. Konan, L. Özdemir
We have reported the electric dipole (E1), magnetic dipole (M1) and electric quadrupole (E2) transition probabilities for some levels of 3p 6 3d 2 and 3p 5 3d 3  in Ca-like tungsten ion (W 54+ ) using the AUTOSTRUCTURE code, which uses non-relativistic or kappa-averaged relativistic wave functions and the full Breit interaction in the Pauli approximation.  In calculations, quantum electrodynamical (QED) contributions and correlation effects have been also taken into account. The results obtained have been compared with the available experimental and theoretical results.
我们用AUTOSTRUCTURE程序报道了类ca钨离子(w54 +)中某些能级3p 6 3d 2和3p 5 3d 3的电偶极子(E1)、磁偶极子(M1)和电四极子(E2)跃迁概率,该程序使用非相对论性或kappa平均相对论性波函数和泡利近似中的完全Breit相互作用。在计算中,还考虑了量子电动力学(QED)的贡献和相关效应。所得结果与已有的实验和理论结果进行了比较。
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引用次数: 0
Detemination of The Best Method (HF, MP2 and B3LYP) in Calculation of Chemical Hardness 测定化学硬度的最佳方法(HF、MP2和B3LYP)的确定
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2018-12-15 DOI: 10.33435/TCANDTC.379540
Zinet Zaim, T. Sayin, K. Sayın, Duran Karakaş
Chemical hardness of 62 molecules are calculated at different 18  levels. No imaginary frequency is observed in optimization results for each level. Correlation between experimental and calculated hardness values are investigated. To analyze this investigation, correlation coefficient and scale factor are calculated for each level. As a result, HF method is better in the calculation of chemical hardness and molecular orbital energy than B3LYP and MP2 methods.
计算了62种分子在18个不同等级上的化学硬度。在每个级别的优化结果中没有观察到虚频率。研究了硬度实验值与硬度计算值的相关性。为了对调查结果进行分析,计算了各层次的相关系数和尺度因子。结果表明,HF方法在计算化学硬度和分子轨道能方面优于B3LYP和MP2方法。
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引用次数: 3
Formation of 3-buten-1-ol over metal encapsulated ZSM-5 from formaldehyde and propene: A Density Functional Theory study 金属包封ZSM-5由甲醛和丙烯形成3-丁烯-1-醇的密度泛函理论研究
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2018-12-15 DOI: 10.33435/TCANDTC.429557
T. Selvaraj, R. Rajalingam, V. Balasubramanian
Carbonyl-ene reaction, which involves C-C bond formation, is an essential organic reaction. Here, we explained the possibility of the C-C bond formation between HCHO and propene catalyzed with Ni 2+ , Pd 2+ , and Pt 2+ exchanged on ZSM-5 zeolite (metal-ZSM-5) by density functional theory. Pt-ZSM-5 exhibits a better activity than other metal-ZSM-5 reported in present work due to high charge transfer among the platinum and formaldehyde.
羰基-烯反应是一种重要的有机反应,它涉及C-C键的形成。本文用密度泛函理论解释了在ZSM-5分子筛(金属-ZSM-5)上交换Ni 2+、Pd 2+和Pt 2+催化HCHO与丙烯形成C-C键的可能性。Pt-ZSM-5表现出比目前报道的其他金属- zsm -5更好的活性,这是由于铂和甲醛之间的高电荷转移。
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引用次数: 0
期刊
Turkish Computational and Theoretical Chemistry
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