%0 Journal Article %T Structural Study, Vibrational, Optical, Thermal Properties and Hirshfeld Surface Analysis of a New Iron (III) Complex: FeCl<sub>4</sub>(C<sub>5</sub>N<sub>2</sub>H<sub>6</sub>)(C<sub>5</sub>N<sub>2</sub>H<sub>5</sub>) %A Amal Arouri %A Rihab Dridi %A Riadh Kefi %A Mohamed Faouzi Zid %J Crystal Structure Theory and Applications %P 14-26 %@ 2169-2505 %D 2021 %I Scientific Research Publishing %R 10.4236/csta.2021.101002 %X The title compound, FeCl4(C5N2H6)(C5N2H5) consists of two [(C5N2H6) (C5N2H5)]+ organic cations and [FeCl4]- anion. The geometry of the iron ion is tetrahedral, formed by four chlorine atoms. The complex was characterized by single crystal X-ray diffraction, Fourier Transform Infrared spectroscopy, thermal analysis and UV-Visible spectroscopy. Hirshfeld surface analysis was also used for understanding the intermolecular interactions in the crystal packing. Single-crystal X-ray diffraction analysis indicates that this complex crystallizes in the monoclinic system, P21/c space group with a = 7.598 (3) &#197;, b = 13.694 (4) &#197;, c = 17.105 (5) &#197;, ¦Â = 97.203 (6)¡ã V = 1765.7 (10) &#197;3 and Z = 4. The [FeCl4]- anion and [(C5N2H6)(C5N2H5)]+ cations are linked through three-dimensional hydrogen-bonding network consisting of N-H...Cl and ¦Ð-¦Ð interactions. Hirshfeld surface analysis and the related 2D fingerprint plots reveal that the complex is dominated by N-H...Cl contacts. %K Complex %K Crystal Structure %K X-Ray Analysis %K Optical Study %K Thermal Analysis %K Hirshfeld Surface %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=107301