An Organic–Inorganic Hybrid Semiconducting Quantum Spin Liquid Candidate: (BEDT-TTF)3[Cu2(μ-C2O4)3·CH3CH2OH·1.2H2O]
The organic–inorganic hybrid (BEDT-TTF)3[Cu2(μ-C2O4)3·CH3CH2OH·1.2H2O] (I) was obtained using the electrocrystallization method. It comprises a θ21-phase organic donor layer and a two-dimensional inorganic antiferromagnetic honeycomb lattice. Cu(II) is octahedrally coordinated by three bisbidenetate oxalates, exhibiting Jahn–Teller distortion. CH3CH2OH and H2O molecules are located within the cavities of the honeycomb lattice. The total formal charge of the three donor molecules was assigned to be +2 based on the bond lengths in the TTF core, which corresponded to the Raman spectra. It is a semiconductor with σrt = 0.04 S/cm and Eα = 40 meV. No long-range ordering was observed above 2 K from zero-field cooling/field cooling magnetization, as confirmed by specific heat measurements. The spin frustration with f > 10 from the antiferromagnetic copper-oxalate-framework was observed. It is a candidate quantum spin liquid.
Authors
- Peng Xu (ORCID: https://orcid.org/0000-0001-9502-6382)
- Jiaou Wang (ORCID: https://orcid.org/0000-0002-4686-1821)
- Rongjuan Feng (ORCID: https://orcid.org/0000-0001-5185-4143)
- Zengqiang Gao (ORCID: https://orcid.org/0000-0002-9100-9929)
- Tongling Liang (ORCID: https://orcid.org/0000-0002-0669-9751)
- Qiaolian Li (ORCID: https://orcid.org/0009-0003-4806-4679)
- Fengguang Dong (ORCID: https://orcid.org/0000-0003-3543-2500)
- Guangcai Chang (ORCID: https://orcid.org/0000-0002-9906-0630)
- Young Sun (ORCID: https://orcid.org/0000-0001-8879-3508)
- Xiaofei Luo (ORCID: https://orcid.org/0009-0000-7486-503X)
- Mei Liu (ORCID: https://orcid.org/0000-0002-8266-8455)
- Bin Zhang (ORCID: https://orcid.org/0000-0001-8080-0478)
- Xiaoyu Zhang (ORCID: https://orcid.org/0000-0001-6078-9611)
- Xueying Zhang (ORCID: https://orcid.org/0000-0002-8526-3672)
- Yan Zhang (ORCID: https://orcid.org/0000-0003-0107-1014)
- Dongwei Wang (ORCID: https://orcid.org/0000-0003-4193-7302)
- Deliang Yang
- Yanjun Guo
- Zhijuan Zhao (ORCID: https://orcid.org/0009-0009-2907-2546)
- Baolong Qu
- Fen Liu (ORCID: https://orcid.org/0009-0005-3561-9772)
- Zejun Wang (ORCID: https://orcid.org/0000-0001-7701-998X)
Institutions
- Chinese Academy of Sciences (CN)
- Peking University (CN)
- Beijing National Laboratory for Molecular Sciences (CN)
- Institute of High Energy Physics (CN)
- National Center for Nanoscience and Technology (CN)
- Institute of Chemistry (CN)
- State Key Laboratory of Rare Earth Materials Chemistry and Application
Publication Details
- Journal
- Magnetochemistry
- Published
- 2025-02-12
- DOI
- https://doi.org/10.3390/magnetochemistry11020012
- Citations
- 1
- Primary Topic
- Organic and Molecular Conductors Research
- Type
- article
- Field-Weighted Citation Impact
- 0.43
Funders
- National Natural Science Foundation of China