Spin-transition-like behavior on one side in a nitroxide-copper(II)- nitroxide triad system

Atsushi Okazawa; Takayuki Ishida

doi:10.1021/ic101536q

Spin-transition-like behavior on one side in a nitroxide-copper(II)- nitroxide triad system

Atsushi Okazawa, Takayuki Ishida^*

^*Corresponding author for this work

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

43 Citations (Scopus)

Abstract

The ground spin-state of [Cu(phpyNO)₂(H₂O) ₂](BF₄)₂ was switched between S_total = 1/2 and 3/2 across 175 K. On warming, the space group was changed from P2₁2₁2₁ to C222₁ in a single-crystal-to-single-crystal manner, and the transient structure could be monitored by means of the crystallographic analysis. The copper-radical exchange coupling changed from 2J/k_B = -463(3) to +312(6) K with rather small Cu-O-N-C_2py twisting deformation on one side, while practically no distortion occurred on the other.

Original language	English
Pages (from-to)	10144-10147
Number of pages	4
Journal	Inorganic Chemistry
Volume	49
Issue number	21
DOIs	https://doi.org/10.1021/ic101536q
Publication status	Published - 2010 Nov 1
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic101536q

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title = "Spin-transition-like behavior on one side in a nitroxide-copper(II)- nitroxide triad system",

abstract = "The ground spin-state of [Cu(phpyNO)2(H2O) 2](BF4)2 was switched between Stotal = 1/2 and 3/2 across 175 K. On warming, the space group was changed from P212121 to C2221 in a single-crystal-to-single-crystal manner, and the transient structure could be monitored by means of the crystallographic analysis. The copper-radical exchange coupling changed from 2J/kB = -463(3) to +312(6) K with rather small Cu-O-N-C2py twisting deformation on one side, while practically no distortion occurred on the other.",

author = "Atsushi Okazawa and Takayuki Ishida",

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doi = "10.1021/ic101536q",

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journal = "Inorganic Chemistry",

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AU - Okazawa, Atsushi

AU - Ishida, Takayuki

PY - 2010/11/1

Y1 - 2010/11/1

N2 - The ground spin-state of [Cu(phpyNO)2(H2O) 2](BF4)2 was switched between Stotal = 1/2 and 3/2 across 175 K. On warming, the space group was changed from P212121 to C2221 in a single-crystal-to-single-crystal manner, and the transient structure could be monitored by means of the crystallographic analysis. The copper-radical exchange coupling changed from 2J/kB = -463(3) to +312(6) K with rather small Cu-O-N-C2py twisting deformation on one side, while practically no distortion occurred on the other.

AB - The ground spin-state of [Cu(phpyNO)2(H2O) 2](BF4)2 was switched between Stotal = 1/2 and 3/2 across 175 K. On warming, the space group was changed from P212121 to C2221 in a single-crystal-to-single-crystal manner, and the transient structure could be monitored by means of the crystallographic analysis. The copper-radical exchange coupling changed from 2J/kB = -463(3) to +312(6) K with rather small Cu-O-N-C2py twisting deformation on one side, while practically no distortion occurred on the other.

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JO - Inorganic Chemistry

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ER -

Spin-transition-like behavior on one side in a nitroxide-copper(II)- nitroxide triad system

Abstract

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