Abstract
In this contribution, based-on the structurally confirmed pentacyanometallate (PPh4)2[Fe(CN)5(imidazole)]·(imidazole)·H2O (1) and the manganese compounds [Mn(L)(H2O)2]ClO4 (L = N,N-ethylenebis(3-methoxysalicylideneiminate) or [Mn(MAC)(H2O)Cl]ClO4 (MAC = 2,13-dimethyl-3,6,9,12,18-pentaazabicyclo-[12.3.1]octadeca-1(18),2,12,14,16-pentaene), two new cyanide-bridged bimetallic FeIII-MnIII/II complexes [Mn(L)(H2O)]3[Fe(CN)5(imidazole)](ClO4) (2) and [Mn(MAC)][Fe(CN)5(imidazole)]·CH3OHn (3) were successfully synthesized and characterized by elemental analysis, IR spectroscopy and X-ray structure determination. Single X-ray diffraction analysis reveals the cationic FeMn3 tetranuclear entity for complex 2, which can be further assembled into supramolecular 1D ladder-like double chain by the strong intermolecular hydrogen bond interactions. For complex 3, it can be structurally characterized as neutral one-dimensional linear single infinite chain. The magnetic investigations discover the ferromagnetic coupling between the FeIII-MnIII units in complex 2 and the antiferromagnetic coupling in complex 3 between the FeIII-MnII units through the bridging cyanide group, respectively.
Highlights
IntroductionIn the past several decades, due to their great potential in high-tech fields including quantum compute, information storage, etc., more and more attention have been paid to the research of the molecular-based magnetism.[1,2,3,4,5,6,7,8] As one of the most important building block for the rational construction of molecular magnetic systems, cyanide-bridged magnetic complexes have all along received intense attention since their readily controlled molecular topological structures and theoretically predicted magnetic properties.[9,10,11,12,13] Up to now, a great deal of cyanide-bridged molecular materials structural ranging from 0-dimensional cluster to three-dimensional beautiful networks have been rationally designed and structurally characterized
The magnetic investigations discover the ferromagnetic coupling between the FeIII-MnIII units in complex 2 and the antiferromagnetic coupling in complex 3 between the FeIII-MnII units through the bridging cyanide group, respectively
Among all the polycyanoferrite(III) building blocks, the pentacyanoferrite(III) [Fe(L’)(CN)5]2– ( L’ = monodentate ligand) precursors have been comparatively limited employed in cyanide-bridged molecule magnetism field. 39–43 In this paper, we are focusing on the designed preparation of new cyanide-bridged magnetic complexes with the exploitation of pentacyanideferrite(III) compound [Fe(CN)5(imidazole)]2– as building block and manganese compounds as assemble segments (Scheme 1)
Summary
In the past several decades, due to their great potential in high-tech fields including quantum compute, information storage, etc., more and more attention have been paid to the research of the molecular-based magnetism.[1,2,3,4,5,6,7,8] As one of the most important building block for the rational construction of molecular magnetic systems, cyanide-bridged magnetic complexes have all along received intense attention since their readily controlled molecular topological structures and theoretically predicted magnetic properties.[9,10,11,12,13] Up to now, a great deal of cyanide-bridged molecular materials structural ranging from 0-dimensional cluster to three-dimensional beautiful networks have been rationally designed and structurally characterized. Because the blocking organic ligand(s) in either the cyano precursors or the counterpart assemble segments can contribute obvious steric effect and efficiently lower the dimen-. Sionality of the target product, many low-dimensional [M(L)(CN)x]n–-based complexes have been expectedly obtained.[36,37,38] Among all the polycyanoferrite(III) building blocks, the pentacyanoferrite(III) [Fe(L’)(CN)5]2– ( L’ = monodentate ligand) precursors have been comparatively limited employed in cyanide-bridged molecule magnetism field. 39–43 In this paper, we are focusing on the designed preparation of new cyanide-bridged magnetic complexes with the exploitation of pentacyanideferrite(III) compound [Fe(CN)5(imidazole)]2– as building block and manganese compounds as assemble segments (Scheme 1). The synthesis, structural wcharacterization and magnetic study for the two new obtained MnII/IIIFeIII bimetallic magnetic complexes {[Mn(L) (H2O)]3[Fe(CN)5(imidazole)]}(ClO4) (2) and {[Mn(MAC)][Fe(CN)5(imidazole)] · CH3OH}n (3), as well as the structure of the cyano precursor (PPh4)2[Fe(CN)5(imidazole)] · (imidazole) · H2O(1), will be presented in the current contribution
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
