scholarly journals Iron-Catalyzed Cross Coupling of Aryl Chlorides with Alkyl Grignard Reagents: Synthetic Scope and FeII/FeIV Mechanism Supported by X-ray Absorption Spectroscopy and Density Functional Theory Calculations

2019 ◽  
Vol 92 (2) ◽  
pp. 381-390 ◽  
Author(s):  
Ryosuke Agata ◽  
Hikaru Takaya ◽  
Hiroshi Matsuda ◽  
Naoki Nakatani ◽  
Katsuhiko Takeuchi ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Absorption Spectroscopy ◽  
Density Functional ◽  
Cross Coupling ◽  
Density Functional Theory Calculations ◽  
Grignard Reagents ◽  
Functional Theory ◽  
X Ray ◽  
Aryl Chlorides ◽  
X Ray Absorption

Electronic, magnetic, vibrational, and X-ray spectroscopy of inverse full-Heusler Fe2IrSi alloy

2021 ◽  
Author(s):  
Lalrinkima ◽  
C. E. Ekuma ◽  
T. C. Chibueze ◽  
L. A. Fomin ◽  
I. V. Malikov ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Absorption Spectroscopy ◽  
Density Functional ◽  
Functional Theory ◽  
X Ray ◽  
X Ray Absorption ◽  
Full Heusler

The electronic, magnetic, structural, vibrational, and X-ray absorption spectroscopy of inverse full-Heusler Fe2IrSi alloy has been studied from density functional theory (DFT). The XA-phase with FM-configuration is the most stable one, structurally and thermodynamically.

scholarly journals Copper-catalyzed aerobic oxidative coupling: From ketone and diamine to pyrazine

2015 ◽  
Vol 1 (9) ◽  
pp. e1500656 ◽  
Author(s):  
Kun Wu ◽  
Zhiliang Huang ◽  
Xiaotian Qi ◽  
Yingzi Li ◽  
Guanghui Zhang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Oxidative Coupling ◽  
Density Functional ◽  
Coupling Reaction ◽  
Density Functional Theory Calculations ◽  
Radical Species ◽  
Functional Theory ◽  
X Ray ◽  
Oxidative Coupling Reaction ◽  
X Ray Absorption

Copper-catalyzed aerobic oxidative C–H/N–H coupling between simple ketones and diamines was developed toward the synthesis of a variety of pyrazines. Various substituted ketones were compatible for this transformation. Preliminary mechanistic investigations indicated that radical species were involved. X-ray absorption fine structure experiments elucidated that the Cu(II) species 5 coordinated by two N atoms at a distance of 2.04 Å and two O atoms at a shorter distance of 1.98 Å was a reactive one for this aerobic oxidative coupling reaction. Density functional theory calculations suggested that the intramolecular coupling of cationic radicals was favorable in this transformation.

High-resolution molybdenum K-edge X-ray absorption spectroscopy analyzed with time-dependent density functional theory

2013 ◽  
Vol 15 (48) ◽  
pp. 20911 ◽  
Author(s):  
Frederico A. Lima ◽  
Ragnar Bjornsson ◽  
Thomas Weyhermüller ◽  
Perumalreddy Chandrasekaran ◽  
Pieter Glatzel ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
High Resolution ◽  
Absorption Spectroscopy ◽  
Density Functional ◽  
Time Dependent ◽  
Functional Theory ◽  
X Ray ◽  
X Ray Absorption ◽  
Dependent Density

Covalency Trends in Group IV Metallocene Dichlorides. Chlorine K-Edge X-Ray Absorption Spectroscopy and Time Dependent-Density Functional Theory

2008 ◽  
Vol 47 (12) ◽  
pp. 5365-5371 ◽  
Author(s):  
Stosh A. Kozimor ◽  
Ping Yang ◽  
Enrique R. Batista ◽  
Kevin S. Boland ◽  
Carol J. Burns ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Absorption Spectroscopy ◽  
Density Functional ◽  
Group Iv ◽  
Time Dependent ◽  
Functional Theory ◽  
X Ray ◽  
X Ray Absorption ◽  
Dependent Density
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