Modulation of the metal recognition properties of a new type of azaferrocenophane-based chemosensors: co-ordination chemistry towards Mg2+, Ca2+, Zn2+and Ni2+
Modulation of the metal recognition properties of a new type of azaferrocenophane-based chemosensors: co-ordination chemistry towards Mg2+, Ca2+, Zn2+and Ni2+