Behavior of alkyl radical pairs in urea channels

Photolysis of single crystals of urea/diacyl peroxide complexes at 10 K gave pairs of alkyl radicals that were separated by two molecules of carbon dioxide. At elevated temperatures the spectra became well-resolved as rotation of the radical centers became fast on the EPR time scale. The maximum resolution of the EPR hyperfine couplings was achieved when the separation between the radicals was greatest. The temperature for the onset of rapid rotation was markedly dependent on the length of the diacyl peroxide. Two radical rearrangements in the urea channels were studied: the cyclopropylmethyl ring opening and the 5-hexenyl radical cyclization. The former was virtually unaffected by the presence of the urea host while the cyclization of the 5-hexenyl radical showed a marked matrix effect.Peer reviewed: YesNRC publication: Ye

Radical pairs in urea channels

Peer reviewed: YesNRC publication: Ye

Power, pregnancy and prison:the impact of a researcher's pregnancy on qualitative interviews with women prisoners

This chapter explores how a researcher’s pregnancy impacted on a series of qualitative semi-structured interviews with women prisoners. I will argue that the utilising of a more general feminist approach which is sympa- thetic to the needs of women and which has the notion of reflexivity and a commitment to less exploitative research at its centre was in the case of this research preferable to adopting a full feminist standpoint. Feminist standpoint theory reflects the view that ‘women (or feminists) occupy a social location that affords them/us a privileged access to social phenom- ena’ (Longino 1993, 201). In Money, Sex and Power (1983), Nancy Hartstock claimed that it was women’s unique standpoint within the social world that provided the justification for feminists’ claims at truth. In the research on which this chapter is based, commonality was certainly found between myself and the women prisoners in terms of both our gender and our experi- ences surrounding children, pregnancy and motherhood and this enhanced the research process. There were, however, other differences that our shared gender could not overcome, for example, in terms of class, power and sta- tus that meant our experiences of the social world were poles apart. I could not therefore claim to have epistemological privilege as other inequalities between us had to be considered and the approach used here therefore, while feminist in nature, stops short of a full feminist standpoint