Incorporation of N-heterocyclic cations into proteins with a highly directed chemical modification.

N-Heterocyclic cations are incorporated into proteins using 5-(2-bromoethyl)phenanthridinium bromide, which selectively reacts with either cysteine or lysine residues, resulting in ethylphenanthridinium (Phen) or highly stable cyclised dihydro-imidazo-phenanthridinium (DIP) adducts respectively; these modifications have been found to manipulate the observed structure of lysozyme and bovine serum albumin by AFM.

Synthesis and characterisation of a mixed-valence Mn13 complex with S6 symmetry by using 2-phenoxybenzoate.

The synthesis, structure and magnetic properties of [Mn(13)O(8)(OEt)6(O(2)CC(6)H(4)OPh)12] are reported as the first example of a high nuclearity manganese complex with 2-phenoxybenzoate: the complex possesses S6 symmetry and an S = 11/2 ground state.