Exploring the Promotion of Synthons of Choice: Halogen Bonding in Molecular Lanthanide Complexes Characterized via X-ray Diffraction, Luminescence Spectroscopy, and Magnetic Measurements
- George Washington Univ., Washington, DC (United States). Dept. of Chemistry
- Cardiff Univ., Wales (United Kingdom). School of Chemistry
- Univ. of Ottawa, Ottawa, ON (Canada). Dept. of Chemistry and Biomolecular Sciences
Promotion of a synthon of choice for the non‐covalent assembly of lanthanide tectons represents both a noteworthy challenge and opportunity within Ln III hybrid materials. We have developed a system, wherein some control can be exercised over supramolecular assembly and, as part of continued efforts to improve this process we have generated a family of ten new lanthanide ( Ln = Sm 3+ – Lu 3+ ) 2,4,6‐trichlorobenzoic acid‐1,10‐phenanthroline molecular complexes. Delineation of criteria for promoting assembly via halogen based interactions was introduced previously and is refined herein based on the characterization of complexes 1 – 10 via single‐crystal X‐ray diffraction. Direct comparison of means of supramolecular assembly for 1 – 10 with isostructural Ln ‐ p ‐chlorobenzoic acid‐1,10‐phenanthroline analogues verifies that increasing the number of halogen atoms at the periphery of a tecton is one route that increases the frequency of halogen bonding interactions. Additionally, solid‐state visible and near‐IR photoluminescence and luminescent lifetime data were collected for complexes 1 (Sm 3+ ), 2 (Eu 3+ ), 4 (Tb 3+ ), 5 (Dy 3+ ), 6 (Ho 3+ ), 7 (Er 3+ ), and 9 (Yb 3+ ) and characteristic emission was observed for all complexes except 6 . Further, direct current magnetic susceptibility measurements were carried out for complexes 5 (Dy 3+ ) and 7 (Er 3+ ), and two slow magnetic relaxation processes were characterized using alternating current magnetic susceptibility measurements for 5 .
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Materials Science of Actinides (MSA)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001089
- OSTI ID:
- 1470041
- Alternate ID(s):
- OSTI ID: 1399274
- Journal Information:
- Zeitschrift fuer Anorganische und Allgemeine Chemie, Vol. 643, Issue 23; Related Information: MSA partners with University of Notre Dame (lead); University of California, Davis; Florida State University; George Washington University; University of Michigan; University of Minnesota; Oak Ridge National Laboratory; Oregon state University; Rensselaer Polytechnic Institute; Savannah River National Laboratory; ISSN 0044-2313
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Metal–Ligand Ratio Controlled Assembly Of Two Heterometallic CuEr Cluster Complexes: Syntheses, Structures and Magnetism
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journal | December 2019 |
Syntheses, Structures, Photoluminescence, and Magnetism of a Series of Discrete Lanthanide Complexes based on 2,5-Dichlorobenzoate and 1,10-Phenanthroline: Syntheses, Structures, Photoluminescence, and Magnetism of a Series of Discrete Lanthanide Complexes based on 2,5-Dichlorobenzoate and 1,10-Phenanthro
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journal | March 2019 |
A Thorium Metal‐Organic Framework with Outstanding Thermal and Chemical Stability
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journal | April 2019 |
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