scholarly journals Synthesis, Crystal Structure, and Physical Properties of the Charge-Transfer Complex Bis[benzo[1,2-c:3,4-c′:5,6-c″]trithiophene]–tetrafluorotetracyanoquinodimethan, (BTT)2(TCNQF4)

1988 ◽  
Vol 61 (7) ◽  
pp. 2303-2308 ◽  
Author(s):  
Tadashi Sugano ◽  
Takashi Hashida ◽  
Akiko Kobayashi ◽  
Hayao Kobayashi ◽  
Minoru Kinoshita
1991 ◽  
Vol 20 (7) ◽  
pp. 1237-1240
Author(s):  
Jiro Toyoda ◽  
Kazuhiro Nakasuji ◽  
Tomoyuki Kotani ◽  
Ichiro Murata ◽  
Atsushi Kawamoto ◽  
...  

2021 ◽  
Author(s):  
Hosea M. Nelson ◽  
Juno C. Siu ◽  
Ambarneil Saha ◽  
Duilio Cascio ◽  
Samantha N. MacMillan ◽  
...  

Author(s):  
Hosea Nelson ◽  
Juno Siu ◽  
Ambarniel Saha ◽  
Duilio Cascio ◽  
Song-Bai Wu ◽  
...  

Recent advances in radical-based catalytic reactions have created an increasing demand for the understanding of their mechanistic underpinnings. Structural elucidation of transient reactive intermediates via diffraction techniques, though rarely possible, is one of the most decisive ways to support such mechanistic hypotheses. Here we present the isolation, structural elucidation, and theoretical analysis of an electrochemically generated and catalytically relevant charge-transfer species formed between the azidyl radical and (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO). The unusual bent N–N–N angle and the pancake bonding between these two fragments highlight the weak bonding interactions present in this complex. This X-ray structure validates computational predictions as well as mechanistic proposals of TEMPO-mediated radical azidation reactions.


2001 ◽  
pp. 1398-1399 ◽  
Author(s):  
Hirofumi Yoshikawa ◽  
Shin-ichi Nishikiori ◽  
Kinga Suwinska ◽  
Roman Luboradzki ◽  
Janusz Lipkowski

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