Setifi Fatima, Setifi Zouaoui, Reuter Hans, Al-Douh Mohammad Hadi, Addala Abderezak
Laboratoire de Chimie Ingénierie Moléculaire et Nanostructures (LCIMN) Université Ferhat Abbas Sétif 1 Sétif 19000 Algeria.
Départment de Technologie Faculté de Technologie Université 20 Août 1955-Skikda BP 26 Route d'El-Hadaiek Skikda 21000 Algeria.
IUCrdata. 2024 Nov 22;9(Pt 11):x241116. doi: 10.1107/S2414314624011167. eCollection 2024 Nov.
In the hydrated title complex, [Fe(dpa)(N)]·HO (dpa is 2,2'-di-pyridyl-amine, CHN), the Fe ion is coordinated in a distorted octa-hedral manner by two neutral, chelating dpa ligands and two anionic, monodentate azide (N ) ions in a -configuration. Distortion results from different Fe-N bond lengths [2.1397 (13)-2.2254 (12) Å] and (N-Fe-N) [80.12 (4)-96.72 (5)°] and (N-Fe-N) [166.73 (4)-176.62 (5)°] bond angles. Hydrogen bonds exist between two symmetry-related water mol-ecules as hydrogen donors to the γ-N atoms of azido ligands of two adjacent iron complexes and as acceptors from the amide group of the dpa ligands of two additional iron complexes. The hydrogen-bonding pattern results in eight-membered ⋯H-O-H⋯N⋯ rings and a band-like arrangement of the mol-ecules involved. Additional, weaker hydrogen bonds between the α-N atom of the second azido ligand as acceptors and the amide groups of the second dpa ligands as donors cross-link neighboring bands to layers extending parallel to (001).
在水合标题配合物[Fe(dpa)(N₃)]·H₂O（dpa为2,2'-联吡啶胺，C₁₀H₈N₂）中，Fe离子以扭曲的八面体方式配位，由两个中性螯合的dpa配体和两个阴离子单齿叠氮化物（N₃⁻）离子呈反式构型。畸变源于不同的Fe-N键长[2.1397 (13) - 2.2254 (12) Å]以及（N-Fe-N）[80.12 (4) - 96.72 (5)°]和（N-Fe-N）[166.73 (4) - 176.62 (5)°]键角。两个对称相关的水分子之间存在氢键，它们作为氢供体与两个相邻铁配合物的叠氮配体的γ-N原子相连，并作为氢受体与另外两个铁配合物的dpa配体的酰胺基团相连。氢键模式形成了八元⋯H-O-H⋯N⋯环以及相关分子的带状排列。第二个叠氮配体的α-N原子作为氢受体与第二个dpa配体的酰胺基团作为氢供体之间还存在较弱的氢键，这些氢键将相邻的带交联成平行于(001)延伸的层。
