Bistability and low energy electron transfer: diimine bridged cobalt semiquinonate-catecholate coordination polymers

Ok Sang Jung; Young A. Lee; C. G. Pierpont

doi:10.1016/0379-6779(94)03145-V

Bistability and low energy electron transfer: diimine bridged cobalt semiquinonate-catecholate coordination polymers

Ok Sang Jung^*
, Young A. Lee
, C. G. Pierpont

^*Corresponding author for this work

Department of Chemistry

Korea Institute of Science and Technology
University of Colorado Boulder

Research output: Contribution to journal › Journal article › peer-review

11 Scopus citations

Abstract

Intramolecular shifts in charge distribution have been investigated for the coordination polymers of [Co^III(N-N) (SQ)(Cat)]_n/[Co^II(N-N)(SQ)₂]_n tautomers (N-N = 4.4′-bipyridine analogs; SQ = 3.6-di-t-butyl- 1.2-semiquinone; Cat = 3,6-di-t-butylcatechol). The polymers remain exclusively in the low-spin Co^III and high-spin Co^II limiting forms, with a series of intermediate species that exhibit Co^III/Co^II equilibria in the solid state. A significant bistability on temperature has been observed by monitoring the changes in magnetism and the intensity of a low energy transition (2500nm = 4000cm^-1) that appears characteristically for the Co^III tautomer.

Original language	English
Pages (from-to)	2019-2020
Number of pages	2
Journal	Synthetic Metals
Volume	71
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)03145-V
State	Published - 1995.04.1

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@article{284249cdba8d478e8eb825a5c8c8f52d,

title = "Bistability and low energy electron transfer: diimine bridged cobalt semiquinonate-catecholate coordination polymers",

abstract = "Intramolecular shifts in charge distribution have been investigated for the coordination polymers of [CoIII(N-N) (SQ)(Cat)]n/[CoII(N-N)(SQ)2]n tautomers (N-N = 4.4′-bipyridine analogs; SQ = 3.6-di-t-butyl- 1.2-semiquinone; Cat = 3,6-di-t-butylcatechol). The polymers remain exclusively in the low-spin CoIII and high-spin CoII limiting forms, with a series of intermediate species that exhibit CoIII/CoII equilibria in the solid state. A significant bistability on temperature has been observed by monitoring the changes in magnetism and the intensity of a low energy transition (2500nm = 4000cm-1) that appears characteristically for the CoIII tautomer.",

author = "Jung, \{Ok Sang\} and Lee, \{Young A.\} and Pierpont, \{C. G.\}",

year = "1995",

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doi = "10.1016/0379-6779(94)03145-V",

language = "English",

volume = "71",

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journal = "Synthetic Metals",

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number = "1-3",

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TY - JOUR

T1 - Bistability and low energy electron transfer

T2 - diimine bridged cobalt semiquinonate-catecholate coordination polymers

AU - Jung, Ok Sang

AU - Lee, Young A.

AU - Pierpont, C. G.

PY - 1995/4/1

Y1 - 1995/4/1

N2 - Intramolecular shifts in charge distribution have been investigated for the coordination polymers of [CoIII(N-N) (SQ)(Cat)]n/[CoII(N-N)(SQ)2]n tautomers (N-N = 4.4′-bipyridine analogs; SQ = 3.6-di-t-butyl- 1.2-semiquinone; Cat = 3,6-di-t-butylcatechol). The polymers remain exclusively in the low-spin CoIII and high-spin CoII limiting forms, with a series of intermediate species that exhibit CoIII/CoII equilibria in the solid state. A significant bistability on temperature has been observed by monitoring the changes in magnetism and the intensity of a low energy transition (2500nm = 4000cm-1) that appears characteristically for the CoIII tautomer.

AB - Intramolecular shifts in charge distribution have been investigated for the coordination polymers of [CoIII(N-N) (SQ)(Cat)]n/[CoII(N-N)(SQ)2]n tautomers (N-N = 4.4′-bipyridine analogs; SQ = 3.6-di-t-butyl- 1.2-semiquinone; Cat = 3,6-di-t-butylcatechol). The polymers remain exclusively in the low-spin CoIII and high-spin CoII limiting forms, with a series of intermediate species that exhibit CoIII/CoII equilibria in the solid state. A significant bistability on temperature has been observed by monitoring the changes in magnetism and the intensity of a low energy transition (2500nm = 4000cm-1) that appears characteristically for the CoIII tautomer.

UR - https://www.scopus.com/pages/publications/0029293351

U2 - 10.1016/0379-6779(94)03145-V

DO - 10.1016/0379-6779(94)03145-V

M3 - Journal article

AN - SCOPUS:0029293351

SN - 0379-6779

VL - 71

SP - 2019

EP - 2020

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Bistability and low energy electron transfer: diimine bridged cobalt semiquinonate-catecholate coordination polymers

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