Molecular, supramolecular structures combined with hirshfeld and dft studies of centrosymmetric m(Ii)-azido {m=ni(ii), fe(ii) or zn(ii)} complexes of 4-benzoylpyridine
Artikel i vetenskaplig tidskrift, 2021

The supramolecular structures of the three metal (II) azido complexes [Fe(4bzpy)4 (N3 )2 ]; 1, [Ni(4bzpy)4 (N3 )2 ]; 2 and [Zn(4bzpy)2 (N3 )2 ]n; 3 with 4-benzoylpyridine (4bzpy) were presented. All complexes contain hexa-coordinated divalent metal ions with a slightly distorted octahedral MN6 coordination sphere. Complexes 1 and 2 are monomeric with terminal azido groups while 3 is one-dimensional coordination polymer containing azido groups with µ(1,1) and µ(1,3) bridging modes of bonding. Hirshfeld analysis was used to quantitatively determine the different contacts affecting the molecular packing in the studied complexes. The most common interactions are the polar O … H and N … H interactions and the hydrophobic C … H contacts. The charges at the M(II) sites are calculated to be 1.004, 0.847, and 1.147 e for complexes 1–3, respectively. The degree of asymmetry is the highest in the case of the terminal azide in complexes 1 and 2 while was found the lowest in the µ(1,1) and µ(1,3) azide bonding modes in the Zn(II) complex 3. These facts were further explained in terms of atoms in molecules (AIM) topological parameters.

Azido

Centrosymmetry

4-benoylpyridine

AIM

Supramolecular structures

Self-assembly

Författare

Morsy A. M. Abu-Youssef

Alexandria University

Vratislav Langer

Chalmers, Kemi och kemiteknik, Energi och material

Assem Barakat

King Saud University College of Science

Matti Haukka

Jyväskylän Yliopisto

S.M. Soliman

Alexandria University

Symmetry

2073-8994 (ISSN)

Vol. 13 11 2026

Ämneskategorier

Oorganisk kemi

Strukturbiologi

Teoretisk kemi

DOI

10.3390/sym13112026

Mer information

Senast uppdaterat

2021-11-11