Direct observations of solvated electrons in liquid hydrocarbons

✍ Scribed by J.T. Richards; J.K. Thomas

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 503 KB
• Volume: 10
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(71)80297-x

✦ Synopsis

Using the techniques of pulse radiolysis a short-lived transient absorbing species (Xrnax = 1500 run] has been observed in liquid hydrocarbons at 193%. This absorption has been assigned to a trapped or sofvated electron and a&olute reaction rates have been obtained for reactions of sohated electrons with several soiutcs known to be good efeo tran scavengers. Observetions have also 'been made of the negative ions formed by electron attacfiment LO biphenyl at 193OK and it is concluded that at least two distinct species give rise to the negative ions Of biphenyt At room temperature electron transfer rates have been measured from the biphenyl anion to various acceptors, in particular oxygen. It is concluded that while oxygen reacts with solvated eledtrons in hy&omhons at 193% With a rate constant ke-+02 -= f 5x10" M-r se~-~ , at room temperature where the electrons are not skated the electron pius oxygen reacnon is much slower than the reactions of electrons with biphenyt