Journal article

A new coordination polymer constructed from Pb(NO3)(2) and a benzylideneisonicotinohydrazide derivative: Coordination-induced generation of a pi-hole towards a tetrel-bonding stabilized structure

Ghodrat Mahmoudi, Ardavan Masoudiasl, Farhad Akbari Afkhami, Jonathan M White, Ennio Zangrando, Atash V Gurbanov, Antonio Frontera, Damir A Safin



We report on a new Pb(II) coordination polymer [Pb(HL)(NO3)2]n (1), obtained from a direct reaction of Pb(NO3)2 with N'-4-(dimethylamino)benzylideneisonicotinohydrazide (HL). The coordination sphere around the Pb(II) cation is built by the 1,4-N,O-chelating neutral HL, by six oxygen atoms from three chelating nitrate anions, and by the pyridyl nitrogen donor from a symmetry related molecule. The ligand HL and one of the nitrate anions, acting as bridging species, yield two 1D zig-zag polymeric chains along the crystallographic axes b and c, respectively. As a result, the overall structural architecture of 1 is a 2D layer, which is reinforced by the N–H···O hydrogen bonds and by π···π interac..

View full abstract

University of Melbourne Researchers


Awarded by Fundacao para a Ciencia e a Tecnologia (FCT)

Awarded by Instituto Superior Tecnico

Awarded by MICIU/AEI, FEDER funds

Funding Acknowledgements

This work has been partially supported by the Fundacao para a Ciencia e a Tecnologia (FCT) 2020-2023 multiannual funding to Centro de Quimica Estrutural (project UIDB/00100/2020). A.V. Gurbanov acknowledges the FCT and Instituto Superior Tecnico (DL 57/2016 andL 57/2017 Program, Contractno: IST-ID/110/2018). We acknowledge Australian Synchrotron for beamtime via the Collaborative Access Program (proposal 13618b). This research was funded in part by MICIU/AEI, grant number CTQ2017-85821-R, FEDER funds.