Journal article
Exploring the Promotion of Synthons of Choice: Halogen Bonding in Molecular Lanthanide Complexes Characterized via X‐ray Diffraction, Luminescence Spectroscopy, and Magnetic Measurements
Zeitschrift für anorganische und allgemeine Chemie (1950), Vol.643(23), pp.1948-1955
12/13/2017
DOI: 10.1002/zaac.201700341
Abstract
Promotion of a synthon of choice for the non‐covalent assembly of lanthanide tectons represents both a noteworthy challenge and opportunity within LnIII 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 = Sm3+ – Lu3+) 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 (Sm3+), 2 (Eu3+), 4 (Tb3+), 5 (Dy3+), 6 (Ho3+), 7 (Er3+), and 9 (Yb3+) and characteristic emission was observed for all complexes except 6. Further, direct current magnetic susceptibility measurements were carried out for complexes 5 (Dy3+) and 7 (Er3+), and two slow magnetic relaxation processes were characterized using alternating current magnetic susceptibility measurements for 5.
Details
- Title: Subtitle
- Exploring the Promotion of Synthons of Choice: Halogen Bonding in Molecular Lanthanide Complexes Characterized via X‐ray Diffraction, Luminescence Spectroscopy, and Magnetic Measurements
- Creators
- Korey P Carter - The George Washington UniversitySimon J. A Pope - Cardiff UniversityMark Kalaj - The George Washington UniversityRebecca J Holmberg - University of OttawaMuralee Murugesu - University of OttawaChristopher L Cahill - The George Washington University
- Resource Type
- Journal article
- Publication Details
- Zeitschrift für anorganische und allgemeine Chemie (1950), Vol.643(23), pp.1948-1955
- DOI
- 10.1002/zaac.201700341
- ISSN
- 0044-2313
- eISSN
- 1521-3749
- Number of pages
- 8
- Grant note
- Basic Energy Sciences (DE‐SC0001089)
- Language
- English
- Date published
- 12/13/2017
- Academic Unit
- Chemistry
- Record Identifier
- 9984216592602771
Metrics
13 Record Views