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Role of Noncovalent Interactions in Vanadium Tellurite Chain Connectivities

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journal contribution
posted on 20.01.2015, 00:00 by Anahita Nourmahnad, Matthew D. Smith, Matthias Zeller, Gregory M. Ferrence, Joshua Schrier, Alexander J. Norquist
Structural differences in [V2Te2O10]n2n chain metrics are directly ascribed to variations in noncovalent interactions in a series of organically templated vanadium tellurites, including [C6H17N3]­[V2Te2O10]·H2O, [C5H16N2]­[V2Te2O10], and [C4H14N2]­[V2Te2O10]. The noncovalent interaction (NCI) method was used to locate, quantify, and visualize intermolecular interactions in [C4H14N2]­[V2Te2O10] and [C5H16N2]­[V2Te2O10]. Variations in the van der Waals attractions between [1,4-diaminobutaneH2]2+ and [1,5-diaminopentaneH2]2+ result in divergent packing motifs for these cations, which causes a reorganization of N–H···O hydrogen bonding and variances in the [V2Te2O10]n2n chain metrics. The application of the NCI method to this type of solid-state structure provides a direct method to elucidate the structural effects of weak noncovalent interactions.