|
1
|
Pandey P, Wang X, Gupta H, Smith PW, Lapsheva E, Carroll PJ, Bacon AM, Booth CH, Minasian SG, Autschbach J, Zurek E, Schelter EJ. Realization of Organocerium-Based Fullerene Molecular Materials Showing Mott Insulator-Type Behavior. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17857-17869. [PMID: 38533949 DOI: 10.1021/acsami.3c18766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Electron-rich organocerium complexes (C5Me4H)3Ce and [(C5Me5)2Ce(ortho-oxa)], with redox potentials E1/2 = -0.82 V and E1/2 = -0.86 V versus Fc/Fc+, respectively, were reacted with fullerene (C60) in different stoichiometries to obtain molecular materials. Structurally characterized cocrystals: [(C5Me4H)3Ce]2·C60 (1) and [(C5Me5)2Ce(ortho-oxa)]3·C60 (2) of C60 with cerium-based, molecular rare earth precursors are reported for the first time. The extent of charge transfer in 1 and 2 was evaluated using a series of physical measurements: FT-IR, Raman, solid-state UV-vis-NIR spectroscopy, X-ray absorption near-edge structure (XANES) spectroscopy, and magnetic susceptibility measurements. The physical measurements indicate that 1 and 2 comprise the cerium(III) oxidation state, with formally neutral C60 as a cocrystal in both cases. Pressure-dependent periodic density functional theory calculations were performed to study the electronic structure of 1. Inclusion of a Hubbard-U parameter removes Ce f states from the Fermi level, opens up a band gap, and stabilizes FM/AFM magnetic solutions that are isoenergetic because of the large distances between the Ce(III) cations. The electronic structure of this strongly correlated Mott insulator-type system is reminiscent of the well-studied Ce2O3.
Collapse
Affiliation(s)
- Pragati Pandey
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Xiaoyu Wang
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Himanshu Gupta
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Patrick W Smith
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ekaterina Lapsheva
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J Carroll
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Alexandra M Bacon
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Corwin H Booth
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stefan G Minasian
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Eva Zurek
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Eric J Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
|
2
|
Yao WW, Xu L, Xu XY, Liu JL, Tian ZF, Ren XM. Insight into weakly antiferromagnetic coupling behavior in a non-integer oxidation state bis(2-thioxo-1,3-dithiole-4,5- dithiolate)nickelate molecular semiconductor. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
|
3
|
Yao W, Qian Y, Chen X, Ren X. A
Blockwall‐Type
Layered Bis(dithiolato)nickelate Radical Salt Exhibiting High‐ and
Two‐Dimensional
Antiferromagnetic Coupling Feature. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wan‐Wan Yao
- State Key Laboratory of Materials‐Oriented Chemical Engineering and College of Chemistry & Molecular Engineering Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Yin Qian
- State Key Laboratory of Materials‐Oriented Chemical Engineering and College of Chemistry & Molecular Engineering Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Xuan‐Rong Chen
- School of Chemistry & Environmental Engineering and Instrumental Analysis Center Yancheng Teachers University Yancheng Jiangsu 224007 China
| | - Xiao‐Ming Ren
- State Key Laboratory of Materials‐Oriented Chemical Engineering and College of Chemistry & Molecular Engineering Nanjing Tech University Nanjing Jiangsu 211816 China
| |
Collapse
|
|
4
|
Abstract
This short review article provides the reader with a summary of the history of organic conductors. To retain a neutral and objective point of view regarding the history, background, novelty, and details of each research subject within this field, a thousand references have been cited with full titles and arranged in chronological order. Among the research conducted over ~70 years, topics from the last two decades are discussed in more detail than the rest. Unlike other papers in this issue, this review will help readers to understand the origin of each topic within the field of organic conductors and how they have evolved. Due to the advancements achieved over these 70 years, the field is nearing new horizons. As history is often a reflection of the future, this review is expected to show the future directions of this research field.
Collapse
|