Field-Induced Single Molecular Magnetism and Photoluminescence in Rare Cocrystals of Isomorphic Lanthanide(III) Coordination Compounds with Fully Substituted Pyridine-4-carboxamide Ligand
- 15 June 2020
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 59 (13), 9227-9238
- https://doi.org/10.1021/acs.inorgchem.0c01134
Abstract
A series of four isomorphous, 1:2 (complex/L) rare cocrystals of coordination compounds of Ln(III) ions as [Ln(L)(NO3)3(H2O)]2[L]2 (Ln(III) = Gd (1), Tb (2), Dy (3), and Ho (4)), were synthesized with N,N-diisobutylisonicotinamide (L) using a metal-to-ligand ratio of 1:1. All compounds are dimeric in nature with two cocrystallized L molecules centro-symmetrically interspersed between two dimeric units with H-bonded bridges between them to form interesting, self-assembled H-bonded tapes along the c-axis. Detailed Shape analysis and Hirshfeld analysis are done to demonstrate geometry around the metal centers and various noncovalent interactions present in the systems, respectively. Magnetic studies show that compound 3 is a field-induced single-molecule magnet (SMM) for which the magnetization relaxes through a combination of Orbach (Δ = 51 K and τ0 = 3.1 × 10–7 s) and Raman mechanisms. Solid-state luminescence studies reveal that compounds 1, 2, and 3 are photoluminescent in the visible range, while 4 exhibits luminescence in the NIR region. Compound 3 shows cold white-light emission with Commission Internationale de l’Eclairage (CIE) coordinates (0.31, 0.30) and correlated color temperature (CCT) value of 6942 K.Funding Information
- Council??of??Scientific and Industrial Research, India (01(2971)/19/EMR-II)
- Indo-French Centre for the Promotion of Advanced Research (RCF-IN-0027)
- Centre National de la Recherche Scientifique
- Universit?? de Rennes 1
- European Commission (725184)
This publication has 66 references indexed in Scilit:
- Slow magnetization dynamics in a series of two-coordinate iron(ii) complexesChemical Science, 2012
- High Power Explosive with Good Sensitivity: A 2:1 Cocrystal of CL-20:HMXCrystal Growth & Design, 2012
- Polymorphs, Salts, and Cocrystals: What’s in a Name?Crystal Growth & Design, 2012
- Magnetic Anisotropy in a Dysprosium/DOTA Single‐Molecule Magnet: Beyond Simple Magneto‐Structural CorrelationsAngewandte Chemie, 2012
- Magneto-structural studies of two new cobalt(ii)-N,N-diisobutylisonicotinamide compounds: [CoLCl2]n and [Co(L)2(H2O)4][CoLBr3]2·2H2ODalton Transactions, 2011
- (Ni2), (Ni3), and (Ni2 + Ni3): A Unique Example of Isolated and Cocrystallized Ni2 and Ni3 ComplexesInorganic Chemistry, 2009
- Helical Tubuland Diols: A Synthetic and Crystal Engineering QuestAccounts of Chemical Research, 2008
- Fluorinated Diphenylpolyenes: Crystal Structures and Emission PropertiesThe Journal of Physical Chemistry A, 2007
- Crystal Engineering: A Holistic ViewAngewandte Chemie, 2007
- 847. Infrared spectra of some nitrato-co-ordination complexesJournal of the Chemical Society, 1957