Inert Carbon Free Radicals. 14. Synthesis, Isolation, and Properties of Two Strongly π-π Interacting Mixed-Valence Compounds: The Perchloro-4,4′-ethynylenebis(triphenylmethyl) Anion Radical Potassium (18-Crown-6) Salt and the Perchloro-α,α,α′,α′-tetraphenyl-p-xylylene Anion Radical Tetrabutylammonium Salt

Chemistry of Materials

Volumn 9, Issue 7, 1997, Pages 1620-1629

  Domingo, V M ^a,d   Castaner J ^a   Riera, J ^a   Brillas, E ^b   Molins, E ^c   Martinez, B ^c   Knight, B ^d  

^a DEPT OF ENVIRONMENTAL CHEMISTRY   (Spain)

^b UNIVERSITY OF BARCELONA   (Spain)

^c UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

^d UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0344986906     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm970016x     Document Type: Article

References (86)

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76. -6.
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83. (52) IR spectral data collection of the Departamento de Materiales Orgánicos Halogenados, C.I.D. (C.S.I.C.), Barcelona, Spain.
84. 13C NMR spectra recorded from room temperature to 60 °C show a dynamic effect in the 134.95, 134.41, 132.48, and 130.51 ppm resonance bands. Taking into account their shift, number, low intensity (due to the chlorine quadrupolar moment, the relaxation mechanism of the carbon atoms attached to chlorine is less effective than in the case of the quaternary carbons attached to carbons), broad width, and temperature dependence, the assignment to aromatic C-Cl can be made.
85. Until completion of the dechlorination process.
86. Unfortunately, no crystals suitable for X-ray studies could be obtained.