- Proximate, "Parallel-In-Plane" Preoriented Bis(diazenes) - In-Plane Delocalized Bis(homoconjugated) 4N/5(6)e Anions
-
Synthetic details are presented for a series of more or less rigid, "parallel-in-plane" preoriented bis(diazenes), with N= N/N=N distances (d) of 3.3-2.9 A and interorbital angles (ω) of 142-164° (X-ray crystal structures). DFT calculations (B3LYP/6-31G*) and one-/two-electron reduction experiments with the two least preoriented, most "distant" bis(diazenes) (dN=N/N=N ca, 3.3 A; ω 142-146°) provide more insight into the structural prerequisites for bis(homoconjugative) inplane electron delocalization in 4N/5e radical anions and 4N/6e dianions. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
- Beckmann, Eberhard,Bahr, Nicolaus,Cullmann, Oliver,Yang, Fushun,Kegel, Markus,Voegtle, Markus,Exner, Kai,Keller, Manfred,Knothe, Lothar,Prinzbach, Horst
-
p. 4248 - 4264
(2007/10/03)
-
- Homoconjugation and transannular orbital interactions detected by photoelectron and13C-NMR spectroscopy. Bicyclo[3.3.1]nona-3,7-diene-2,6-dione and bicyclo[3.3.1]nonane-2,6-dione
-
Transannular orbital interactions between two ketone carbonyl groups located at positions 2 and 6 on the bicyclo[3.3.1]nonane carbocyclic framework were detected by 13C-NMR and photoelectron spectroscopy (PES). Thus, an ~4.4-ppm shielding of th
- Doerner, Thomas,Gleiter, Rolf,Robbins, Timothy A.,Chayangkoon, Paochai,Lightner, David A.
-
p. 3235 - 3241
(2007/10/02)
-