Characterization of the chloranilate(•3-) π radical as a strong spin-coupling bridging ligand

Sik Min Kil; Arnold L. Rheingold; Antonio DiPasquale; Joel S. Miller

doi:10.1021/ic061076k

Characterization of the chloranilate(•3-) π radical as a strong spin-coupling bridging ligand

Sik Min Kil, Arnold L. Rheingold, Antonio DiPasquale, Joel S. Miller

Department of Chemical Science Education

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

Dinuclear [(TPA)Co^II(CA^2-)Co^II(TPA)] (BF₄)₂·2MeOH (1) [TPA = tris-(2-pyridylmethyl) amine] and [(TPA)Co^II(CA^•3-)Co^II(TPA)] (BF₄)·2Et₂O (2) with a bridging chloranilate radical ligand formed by reduction of 1 are crystallographically and magnetically characterized. 1 has shown a weak antiferromagnetic coupling within the Co^II dimer [J/k_B = -0.65 K (-0.45 cm^-1)], while 2 has a 2 orders of magnitude stronger antiferromagnetic interaction between the Co^II ion and a radical [J/k_B = -75 K (52 cm^-1)].

Original language	English
Pages (from-to)	6135-6137
Number of pages	3
Journal	Inorganic Chemistry
Volume	45
Issue number	16
DOIs	https://doi.org/10.1021/ic061076k
State	Published - 7 Aug 2006

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title = "Characterization of the chloranilate(•3-) π radical as a strong spin-coupling bridging ligand",

abstract = "Dinuclear [(TPA)CoII(CA2-)CoII(TPA)] (BF4)2·2MeOH (1) [TPA = tris-(2-pyridylmethyl) amine] and [(TPA)CoII(CA•3-)CoII(TPA)] (BF4)·2Et2O (2) with a bridging chloranilate radical ligand formed by reduction of 1 are crystallographically and magnetically characterized. 1 has shown a weak antiferromagnetic coupling within the CoII dimer [J/kB = -0.65 K (-0.45 cm-1)], while 2 has a 2 orders of magnitude stronger antiferromagnetic interaction between the CoII ion and a radical [J/kB = -75 K (52 cm-1)].",

author = "Kil, {Sik Min} and Rheingold, {Arnold L.} and Antonio DiPasquale and Miller, {Joel S.}",

year = "2006",

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doi = "10.1021/ic061076k",

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pages = "6135--6137",

journal = "Inorganic Chemistry",

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T1 - Characterization of the chloranilate(•3-) π radical as a strong spin-coupling bridging ligand

AU - Kil, Sik Min

AU - Rheingold, Arnold L.

AU - DiPasquale, Antonio

AU - Miller, Joel S.

PY - 2006/8/7

Y1 - 2006/8/7

N2 - Dinuclear [(TPA)CoII(CA2-)CoII(TPA)] (BF4)2·2MeOH (1) [TPA = tris-(2-pyridylmethyl) amine] and [(TPA)CoII(CA•3-)CoII(TPA)] (BF4)·2Et2O (2) with a bridging chloranilate radical ligand formed by reduction of 1 are crystallographically and magnetically characterized. 1 has shown a weak antiferromagnetic coupling within the CoII dimer [J/kB = -0.65 K (-0.45 cm-1)], while 2 has a 2 orders of magnitude stronger antiferromagnetic interaction between the CoII ion and a radical [J/kB = -75 K (52 cm-1)].

AB - Dinuclear [(TPA)CoII(CA2-)CoII(TPA)] (BF4)2·2MeOH (1) [TPA = tris-(2-pyridylmethyl) amine] and [(TPA)CoII(CA•3-)CoII(TPA)] (BF4)·2Et2O (2) with a bridging chloranilate radical ligand formed by reduction of 1 are crystallographically and magnetically characterized. 1 has shown a weak antiferromagnetic coupling within the CoII dimer [J/kB = -0.65 K (-0.45 cm-1)], while 2 has a 2 orders of magnitude stronger antiferromagnetic interaction between the CoII ion and a radical [J/kB = -75 K (52 cm-1)].

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U2 - 10.1021/ic061076k

DO - 10.1021/ic061076k

M3 - Article

AN - SCOPUS:33748259641

SN - 0020-1669

VL - 45

SP - 6135

EP - 6137

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 16

ER -

Characterization of the chloranilate(•3-) π radical as a strong spin-coupling bridging ligand

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