Transformation of nortricyclane type cage compounds P4S3, P4Se3 and As4S3 by [Cp′′2Zr(CO)2]

Abstract

The complex [Cp"Zr-2(CO)(2)] (Cp" = C(5)H(3)tBu(2)) was used to transform the nortricyclane type cage compounds E(4)Q(3) (E = P, Q = S, Se; E = As, Q = S) resulting in unprecedented complexes [(Cp"Zr-2)(2)(mu,eta(1:1:1:1)-E(2)Q(4))] possessing bridging ligands that represent the anions of the so far unknown tetrachalcogenohypodiphosphorous acid (HQ)(2)PP(QH)(2) and tetrathiohypodiarsenous acid (HS)(2)AsAs(SH)(2), respectively.