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Ekanayaka T, Jiang T, Delahaye E, Perez O, Sutter JP, Le D, N'Diaye AT, Streubel R, Rahman TS, Dowben PA. Evidence of symmetry breaking in a Gd 2 di-nuclear molecular polymer. Phys Chem Chem Phys 2023; 25:6416-6423. [PMID: 36779815 DOI: 10.1039/d2cp03050k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A chiral 3D coordination compound, [Gd2(L)2(ox)2(H2O)2], arranged around a dinuclear Gd unit has been characterized by X-ray photoemission and X-ray absorption measurements in the context of density functional theory studies. Core level photoemission of the Gd 5p multiplet splittings indicates that spin orbit coupling dominates over j-J coupling evident in the 5p core level spectra of Gd metal. Indications of spin-orbit coupling are consistent with the absence of inversion symmetry due to the ligand field. Density functional theory predicts antiferromagnet alignment of the Gd2 dimers and a band gap of the compound consistent with optical absorption.
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Affiliation(s)
- Thilini Ekanayaka
- Department of Physics and Astronomy, Theodore Jorgensen Hall, 855 North 16th Street, University of Nebraska-Lincoln, Lincoln, NE, 68588-0299, USA.
| | - Tao Jiang
- Department of Physics, University of Central Florida, 4000 Central Florida Blvd, Building 121 PS 430, Orlando, FL, 32816, USA.
| | - Emilie Delahaye
- Laboratoire de Chimie de Coordination du CNRS (LCC), Université de Toulouse, CNRS, Toulouse, France.
| | - Olivier Perez
- Normandie Univ, ENSICAEN, Unicaen, CNRS, CRISMAT, 14000, Caen, France
| | - Jean-Pascal Sutter
- Laboratoire de Chimie de Coordination du CNRS (LCC), Université de Toulouse, CNRS, Toulouse, France.
| | - Duy Le
- Department of Physics, University of Central Florida, 4000 Central Florida Blvd, Building 121 PS 430, Orlando, FL, 32816, USA.
| | - Alpha T N'Diaye
- Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, CA, 94720, USA
| | - Robert Streubel
- Department of Physics and Astronomy, Theodore Jorgensen Hall, 855 North 16th Street, University of Nebraska-Lincoln, Lincoln, NE, 68588-0299, USA.
| | - Talat S Rahman
- Department of Physics, University of Central Florida, 4000 Central Florida Blvd, Building 121 PS 430, Orlando, FL, 32816, USA.
| | - Peter A Dowben
- Department of Physics and Astronomy, Theodore Jorgensen Hall, 855 North 16th Street, University of Nebraska-Lincoln, Lincoln, NE, 68588-0299, USA.
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