Observation of Biradical Spin Coupling through Hydrogen Bonds
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Observation of Biradical Spin Coupling through Hydrogen Bonds. / He, Yang; Li, Na; Castelli, Ivano E.; Li, Ruoning; Zhang, Yajie; Zhang, Xue; Li, Chao; Wang, Bingwu; Gao, Song; Peng, Lianmao; Hou, Shimin; Shen, Ziyong; Lu, Jing-Tao; Wu, Kai; Hedegard, Per; Wang, Yongfeng.
In: Physical Review Letters, Vol. 128, No. 23, 236401, 06.06.2022.Research output: Contribution to journal › Letter › Research › peer-review
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TY - JOUR
T1 - Observation of Biradical Spin Coupling through Hydrogen Bonds
AU - He, Yang
AU - Li, Na
AU - Castelli, Ivano E.
AU - Li, Ruoning
AU - Zhang, Yajie
AU - Zhang, Xue
AU - Li, Chao
AU - Wang, Bingwu
AU - Gao, Song
AU - Peng, Lianmao
AU - Hou, Shimin
AU - Shen, Ziyong
AU - Lu, Jing-Tao
AU - Wu, Kai
AU - Hedegard, Per
AU - Wang, Yongfeng
PY - 2022/6/6
Y1 - 2022/6/6
N2 - Investigation of intermolecular electron spin interaction is of fundamental importance in both science and technology. Here, radical pairs of all-trans retinoic acid molecules on Au(111) are created using an ultralow temperature scanning tunneling microscope. Antiferromagnetic coupling between two radicals is identified by magnetic-field-dependent spectroscopy. The measured exchange energies are from 0.1 to 1.0 meV. The biradical spin coupling is mediated through O-H ??? ??? ??? O hydrogen bonds, as elucidated from analysis combining density functional theory calculation and a modern version of valence bond theory.
AB - Investigation of intermolecular electron spin interaction is of fundamental importance in both science and technology. Here, radical pairs of all-trans retinoic acid molecules on Au(111) are created using an ultralow temperature scanning tunneling microscope. Antiferromagnetic coupling between two radicals is identified by magnetic-field-dependent spectroscopy. The measured exchange energies are from 0.1 to 1.0 meV. The biradical spin coupling is mediated through O-H ??? ??? ??? O hydrogen bonds, as elucidated from analysis combining density functional theory calculation and a modern version of valence bond theory.
KW - SINGLE
KW - ATOM
U2 - 10.1103/PhysRevLett.128.236401
DO - 10.1103/PhysRevLett.128.236401
M3 - Letter
C2 - 35749188
VL - 128
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 23
M1 - 236401
ER -
ID: 315462777