Benzonitrile infrared spectrum

Fig. 3.39 Infrared spectrum of benzonitrile recorded as a liquid film.

FIGURE 2.63 The infrared spectrum of benzonitrile (neat liquid, KBr plates). 

Chemical oxidation of B with [NO) [BF4] led, after work-up, to the isolation of a product whose oxidation potential was exactly the same as the one observed for the product obtained after electrolysis of B. This compound was characterised by its infrared spectrum and elemental analysis as the benzonitrile derivative of B. 

FIGURE 6 Infrared spectrum of benzonitrile in a 0.01-mm NaCI cell. 

The radical anion Cw, can also be easily obtained by photoinduced electron transfer from various strong electron donors such as tertiary amines, fer-rocenes, tetrathiafulvalenes, thiophenes, etc. In homogeneous systems back-electron transfer to the reactant pair plays a dominant role resulting in a extremely short lifetime of Qo. In these cases no net formation of Qo is observed. These problems were circumvented by Fukuzumi et al. by using NADH analogues as electron donors [154,155], In these cases selective one-electron reduction of C6o to Qo takes place by the irradiation of C6o with a Xe lamp (X > 540 nm) in a deaerated benzonitrile solution upon the addition of 1-benzyl-1,4-dihydronicoti-namide (BNAH) or the corresponding dimer [(BNA)2] (Scheme 15) [154], The formation of C60 is confirmed by the observation of the absorption band at 1080 nm in the near infrared (NIR) spectrum assigned to the fullerene radical cation. 

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