[Co5(3-OH)2(btec)2(bpp)] n: A three-dimensional homometallic molecular metamagnet built from the mixed hydroxide/carboxylate-bridged ferrimagnetic-like chains

Hong Peng Jia; Wei Li; Zhan Feng Ju; Jie Zhang

doi:10.1039/b700041c

[Co₅(₃-OH)₂(btec)₂(bpp)] _n: A three-dimensional homometallic molecular metamagnet built from the mixed hydroxide/carboxylate-bridged ferrimagnetic-like chains

Hong Peng Jia, Wei Li, Zhan Feng Ju, Jie Zhang^*

^*Corresponding author for this work

CAS - Fujian Institute of Research on the Structure of Matter

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

49 Citations (Scopus)

Abstract

A three-dimensional homometallic complex [Co₅( ₃-OH)₂(btec)₂(bpp)]_n is built from the mixed hydroxide/carboxylate bridged cobalt(ii) chains linked by the 1,2,4,5-benzenetetracarboxylate (btec^4-) anion and 1,3-bis(4-pyridyl)-propane molecule (bpp). Within each chain, two ₃-OH-bridged metal triangles connect to each other by sharing a common vertex to give rise to a bow-tie type Co₅(₃-OH) ₂ subunit, which is joined to adjacent subunits by four _1,1-carboxylate bridges to form a step-like metal-oxygen backbone. The magnetic studies revealed that the coexistence of ferromagnetic and antiferrimagnetic interactions resulted in a ferrimagnetic-like behavior of the homometallic chains. Below a critical temperature (T_N = 12.5 K), bulk antiferromagnetic ordering was observed at low field due to the weak interchain antiferromagnetic interactions. A metamagnetic transition occurred at a magnetic field of ca. 5 kOe at 2 K.

Original language	English
Pages (from-to)	3699-3704
Number of pages	6
Journal	Dalton Transactions
Issue number	33
DOIs	https://doi.org/10.1039/b700041c
Publication status	Published - 2007
Externally published	Yes

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title = "[Co5(3-OH)2(btec)2(bpp)] n: A three-dimensional homometallic molecular metamagnet built from the mixed hydroxide/carboxylate-bridged ferrimagnetic-like chains",

abstract = "A three-dimensional homometallic complex [Co5( 3-OH)2(btec)2(bpp)]n is built from the mixed hydroxide/carboxylate bridged cobalt(ii) chains linked by the 1,2,4,5-benzenetetracarboxylate (btec4-) anion and 1,3-bis(4-pyridyl)-propane molecule (bpp). Within each chain, two 3-OH-bridged metal triangles connect to each other by sharing a common vertex to give rise to a bow-tie type Co5(3-OH) 2 subunit, which is joined to adjacent subunits by four 1,1-carboxylate bridges to form a step-like metal-oxygen backbone. The magnetic studies revealed that the coexistence of ferromagnetic and antiferrimagnetic interactions resulted in a ferrimagnetic-like behavior of the homometallic chains. Below a critical temperature (TN = 12.5 K), bulk antiferromagnetic ordering was observed at low field due to the weak interchain antiferromagnetic interactions. A metamagnetic transition occurred at a magnetic field of ca. 5 kOe at 2 K.",

author = "Jia, {Hong Peng} and Wei Li and Ju, {Zhan Feng} and Jie Zhang",

year = "2007",

doi = "10.1039/b700041c",

language = "English",

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journal = "Dalton Transactions",

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publisher = "Royal Society of Chemistry",

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T1 - [Co5(3-OH)2(btec)2(bpp)] n

T2 - A three-dimensional homometallic molecular metamagnet built from the mixed hydroxide/carboxylate-bridged ferrimagnetic-like chains

AU - Jia, Hong Peng

AU - Li, Wei

AU - Ju, Zhan Feng

AU - Zhang, Jie

PY - 2007

Y1 - 2007

N2 - A three-dimensional homometallic complex [Co5( 3-OH)2(btec)2(bpp)]n is built from the mixed hydroxide/carboxylate bridged cobalt(ii) chains linked by the 1,2,4,5-benzenetetracarboxylate (btec4-) anion and 1,3-bis(4-pyridyl)-propane molecule (bpp). Within each chain, two 3-OH-bridged metal triangles connect to each other by sharing a common vertex to give rise to a bow-tie type Co5(3-OH) 2 subunit, which is joined to adjacent subunits by four 1,1-carboxylate bridges to form a step-like metal-oxygen backbone. The magnetic studies revealed that the coexistence of ferromagnetic and antiferrimagnetic interactions resulted in a ferrimagnetic-like behavior of the homometallic chains. Below a critical temperature (TN = 12.5 K), bulk antiferromagnetic ordering was observed at low field due to the weak interchain antiferromagnetic interactions. A metamagnetic transition occurred at a magnetic field of ca. 5 kOe at 2 K.

AB - A three-dimensional homometallic complex [Co5( 3-OH)2(btec)2(bpp)]n is built from the mixed hydroxide/carboxylate bridged cobalt(ii) chains linked by the 1,2,4,5-benzenetetracarboxylate (btec4-) anion and 1,3-bis(4-pyridyl)-propane molecule (bpp). Within each chain, two 3-OH-bridged metal triangles connect to each other by sharing a common vertex to give rise to a bow-tie type Co5(3-OH) 2 subunit, which is joined to adjacent subunits by four 1,1-carboxylate bridges to form a step-like metal-oxygen backbone. The magnetic studies revealed that the coexistence of ferromagnetic and antiferrimagnetic interactions resulted in a ferrimagnetic-like behavior of the homometallic chains. Below a critical temperature (TN = 12.5 K), bulk antiferromagnetic ordering was observed at low field due to the weak interchain antiferromagnetic interactions. A metamagnetic transition occurred at a magnetic field of ca. 5 kOe at 2 K.

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DO - 10.1039/b700041c

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SN - 1477-9226

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JO - Dalton Transactions

JF - Dalton Transactions

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ER -

[Co₅(₃-OH)₂(btec)₂(bpp)] _n: A three-dimensional homometallic molecular metamagnet built from the mixed hydroxide/carboxylate-bridged ferrimagnetic-like chains

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