Hydrothermal synthesis and crystal structure of a layered vanadium oxide with an interlayer metal co-ordination complex: Cd[C3N2H11]2[V8O20]

Abstract
The compound Cd[C3N2H11]2[V8O20] was synthesized from the hydrothermal reactions of V2O5, CdSO4, 1,2-diaminopropane (enMe) and water in the molar ratio 1∶1∶2.2∶223. Its structure has been determined by single-crystal X-ray diffraction. This compound has an open three-dimensional framework structure consisting of [V8O20]4− layers, composed of equal numbers of VO4 tetrahedra and VO5 pyramids connected by both corner and edge sharing. The Cd[enMeH]2 4+ complex occupies the interlayer space and connects with the vanadium oxide layers through four Cd–O bonds. This arrangement gives one-dimensional channels with 10-membered rings along the c axis.

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