Facile P2N2 macrocycle formation promoted by lithium templating. The X-ray crystal structures of syn-Li2(thf)(P2N2) and anti-Li2(thf)2(P2N2)[P2N2= PhP(CH2SiMe2NSiMe2CH2)2PPh]

Abstract
Lithium ions act as templates in the formation of twelve-membered ring macrocycles that contain both amido and phosphine donors.