Synthesis and structure of the amidate-bridged platinumuranium bimetallic complex [Pt{NC(O)CH2CH2}2(PPh3)2]·UO2(NO3)2

The reaction of the β-propiolactam-derived platinum(II) amidate complex [Pt{H2}2(PPh3)2] with uranyl nitrate gives the coordination complex [Pt{H2}2(PPh3)2]·UO2(NO3)2, which was characterised by a single-crystal X-ray diffraction study. The lactam carbonyl groups are coordinated to the linear uranyl group, forming an eight-membered ring, with the uranium also having two bidentate nitrates, completing a hexagonal bipyramidal coordination geometry. The platinum and uranium coordination planes are almost perpendicular, at an angle of 85.4(1)°.