TY - JOUR
T1 - Strong magnetic exchange coupling in a radical-bridged trinuclear nickel complex
AU - Yang, Luming
AU - Oppenheim, Julius J.
AU - Dincă, Mircea
N1 - Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/5/18
Y1 - 2022/5/18
N2 - Reaction of 2,3,6,7,10,11-hexaaminotriphenylene hexahydrochloride (HATP·6HCl) and (TpPhNi)Cl (TpPh = tris(3,5-diphenyl-1-pyrazolyl)borate) produces the radical-bridged trinickel complex [(TpPhNi)3(HITP)] (HITP3−˙ = 2,3,6,7,10,11-hexaiminotriphenylene). Magnetic measurements and broken-symmetry density functional theory calculations reveal strong exchange coupling persisting at room temperature between HITP3−˙ and two of the three Ni2+ centers, a rare example of strong radical-mediated magnetic coupling in multimetallic complexes. These results demonstrate the potential of radical-bearing tritopic HITP ligands as building blocks for extended molecule-based magnetic materials.
AB - Reaction of 2,3,6,7,10,11-hexaaminotriphenylene hexahydrochloride (HATP·6HCl) and (TpPhNi)Cl (TpPh = tris(3,5-diphenyl-1-pyrazolyl)borate) produces the radical-bridged trinickel complex [(TpPhNi)3(HITP)] (HITP3−˙ = 2,3,6,7,10,11-hexaiminotriphenylene). Magnetic measurements and broken-symmetry density functional theory calculations reveal strong exchange coupling persisting at room temperature between HITP3−˙ and two of the three Ni2+ centers, a rare example of strong radical-mediated magnetic coupling in multimetallic complexes. These results demonstrate the potential of radical-bearing tritopic HITP ligands as building blocks for extended molecule-based magnetic materials.
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U2 - 10.1039/d2dt01337a
DO - 10.1039/d2dt01337a
M3 - Article
C2 - 35612004
AN - SCOPUS:85131300390
SN - 1477-9226
VL - 51
SP - 8583
EP - 8587
JO - Dalton Transactions
JF - Dalton Transactions
IS - 22
ER -