Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals

Jia Ye Zhang; Li Jie Su; Qi Jie Guo; Jun Tao

doi:10.1016/j.inoche.2017.05.012

Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals

Jia Ye Zhang
, Li Jie Su
, Qi Jie Guo
, Jun Tao^*

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

A cobalt(II) compound, [Co^II(terpy)₂](TCNQ)₄·3DMF·0.5H₂O (1; terpy = 2,2′;6′,2″-terpyridine, TCNQ = 7,7′,8,8′-tetracyanoquinodimethane), was found to show incomplete spin-crossover properties in the cobalt(II) complex and semiconducting properties in the quasi one-dimensional packed TCNQ[rad]^δ − (0 < δ < 1) radical anions. Single-crystal structures characterized at different temperatures demonstrated non-integer charge distribution among TCNQ radicals. Moreover, electric conductivity measurements revealed that 1 act as semiconductor at 300 K (3.3 × 10^− 4 S cm^− 1). The coexistence of spin crossover and electric conductivity in one system will pave the way to study the interactions of such different properties and for the implementation of multifunctional materials.

Original language	English
Pages (from-to)	39-43
Number of pages	5
Journal	Inorganic Chemistry Communications
Volume	82
DOIs	https://doi.org/10.1016/j.inoche.2017.05.012
Publication status	Published - Aug 2017
Externally published	Yes

Keywords

Semiconductor
Spin-crossover

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10.1016/j.inoche.2017.05.012

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@article{e2dd6b70218242d78b166fe7ffb40939,

title = "Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals",

abstract = "A cobalt(II) compound, [CoII(terpy)2](TCNQ)4·3DMF·0.5H2O (1; terpy = 2,2′;6′,2″-terpyridine, TCNQ = 7,7′,8,8′-tetracyanoquinodimethane), was found to show incomplete spin-crossover properties in the cobalt(II) complex and semiconducting properties in the quasi one-dimensional packed TCNQ[rad]δ − (0 < δ < 1) radical anions. Single-crystal structures characterized at different temperatures demonstrated non-integer charge distribution among TCNQ radicals. Moreover, electric conductivity measurements revealed that 1 act as semiconductor at 300 K (3.3 × 10− 4 S cm− 1). The coexistence of spin crossover and electric conductivity in one system will pave the way to study the interactions of such different properties and for the implementation of multifunctional materials.",

keywords = "Semiconductor, Spin-crossover",

author = "Zhang, \{Jia Ye\} and Su, \{Li Jie\} and Guo, \{Qi Jie\} and Jun Tao",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = aug,

doi = "10.1016/j.inoche.2017.05.012",

language = "English",

volume = "82",

pages = "39--43",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals

AU - Zhang, Jia Ye

AU - Su, Li Jie

AU - Guo, Qi Jie

AU - Tao, Jun

PY - 2017/8

Y1 - 2017/8

N2 - A cobalt(II) compound, [CoII(terpy)2](TCNQ)4·3DMF·0.5H2O (1; terpy = 2,2′;6′,2″-terpyridine, TCNQ = 7,7′,8,8′-tetracyanoquinodimethane), was found to show incomplete spin-crossover properties in the cobalt(II) complex and semiconducting properties in the quasi one-dimensional packed TCNQ[rad]δ − (0 < δ < 1) radical anions. Single-crystal structures characterized at different temperatures demonstrated non-integer charge distribution among TCNQ radicals. Moreover, electric conductivity measurements revealed that 1 act as semiconductor at 300 K (3.3 × 10− 4 S cm− 1). The coexistence of spin crossover and electric conductivity in one system will pave the way to study the interactions of such different properties and for the implementation of multifunctional materials.

AB - A cobalt(II) compound, [CoII(terpy)2](TCNQ)4·3DMF·0.5H2O (1; terpy = 2,2′;6′,2″-terpyridine, TCNQ = 7,7′,8,8′-tetracyanoquinodimethane), was found to show incomplete spin-crossover properties in the cobalt(II) complex and semiconducting properties in the quasi one-dimensional packed TCNQ[rad]δ − (0 < δ < 1) radical anions. Single-crystal structures characterized at different temperatures demonstrated non-integer charge distribution among TCNQ radicals. Moreover, electric conductivity measurements revealed that 1 act as semiconductor at 300 K (3.3 × 10− 4 S cm− 1). The coexistence of spin crossover and electric conductivity in one system will pave the way to study the interactions of such different properties and for the implementation of multifunctional materials.

KW - Semiconductor

KW - Spin-crossover

UR - https://www.scopus.com/pages/publications/85019607957

U2 - 10.1016/j.inoche.2017.05.012

DO - 10.1016/j.inoche.2017.05.012

M3 - Article

AN - SCOPUS:85019607957

SN - 1387-7003

VL - 82

SP - 39

EP - 43

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

ER -

Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals

Abstract

Keywords

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