Synthesis, crystal structures, spectroscopy and magnetic properties of two cobalt molecules constructed from histidine

Yu Xie, Hao Han Wu, Guo Ping Yong, Zhi Yong Wang, Rong Fan, Rui Peng Li, Guo Qiang Pan, Yang Chao Tian, Liu Si Sheng, Long Pan, Jing Li

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A complex with a new [CoIII(d-His)(l-His)] · ClO4 (1) configuration was synthesized and characterized. Compound 1 crystallizes in the monoclinic space group Cc, with a = 13.102(5) Å, b = 15.495(5) Å, c = 10.237(4) Å, β = 127.856(4) ° and Z = 4. It was obtained via in situ oxidation. The histidinato-cobalt complexes with a cis-imidazole, cis-amine and cis-carboxylate configuration form a 3D supramolecular architecture of 1 via hydrogen bonding. Upon the addition of isonicotinic acid under similar reaction conditions, a new polymer [Co2II(d-His)(l-His)(INT)] · H2O · ClO4 (2) was obtained. Compound 2 crystallizes in the monoclinic space group P21/n, with a = 9.848(2) Å, b = 11.844(2) Å, c = 21.444(4) Å, β = 92.09(3) ° and Z = 4. In polymer 2, a novel kind of 16 nucleus cyclohexane-like chair conformation grid is formed. Each grid consists of four tetranucleus cluster units and four isonicotinate spacers. The novel tetranucleus clusters which are made up of four adjacent O-Co-N octahedra can be seen as the secondary building units (SBUs) for 2. Finally the grids form the coupling strands of opposite helixes via a connection of SBUs and assemble to the zigzag layers which organize into an embedding 3D supramolecular structure through hydrogen bonding. The spectroscopy and magnetic properties of two compounds were also measured. The FT-IR spectra provide an additional evidence for coordination environments for two compounds. The XPS result can provide assistant evidence for the conclusion that the valence of Co ions in 1 is III, as it is tested mainly in single X-ray diffraction and magnetic measurement. The diamagnetic-like phenomenon is shown for 1 and the paramagnetic-like phenomenon is displayed for 2.

Original languageEnglish
Pages (from-to)88-97
Number of pages10
JournalJournal of Molecular Structure
Volume833
Issue number1-3
DOIs
Publication statusPublished - May 15 2007

Fingerprint

histidine
Hydrogen Bonding
Cobalt
Histidine
Spectrum Analysis
Magnetic properties
Hydrogen bonds
Polymers
Isonicotinic Acids
cobalt
Crystal structure
grids
Spectroscopy
magnetic properties
crystal structure
Molecules
Magnetic variables measurement
synthesis
Cyclohexane
X-Ray Diffraction

Keywords

  • Coordination architectures
  • Histidinato
  • IR spectra
  • Magnetic properties
  • Novel cyclohexane-like chair conformation 16 cobalt nucleus grid
  • XPS

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Materials Science (miscellaneous)

Cite this

Synthesis, crystal structures, spectroscopy and magnetic properties of two cobalt molecules constructed from histidine. / Xie, Yu; Wu, Hao Han; Yong, Guo Ping; Wang, Zhi Yong; Fan, Rong; Li, Rui Peng; Pan, Guo Qiang; Tian, Yang Chao; Sheng, Liu Si; Pan, Long; Li, Jing.

In: Journal of Molecular Structure, Vol. 833, No. 1-3, 15.05.2007, p. 88-97.

Research output: Contribution to journalArticle

Xie, Yu ; Wu, Hao Han ; Yong, Guo Ping ; Wang, Zhi Yong ; Fan, Rong ; Li, Rui Peng ; Pan, Guo Qiang ; Tian, Yang Chao ; Sheng, Liu Si ; Pan, Long ; Li, Jing. / Synthesis, crystal structures, spectroscopy and magnetic properties of two cobalt molecules constructed from histidine. In: Journal of Molecular Structure. 2007 ; Vol. 833, No. 1-3. pp. 88-97.
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abstract = "A complex with a new [CoIII(d-His)(l-His)] · ClO4 (1) configuration was synthesized and characterized. Compound 1 crystallizes in the monoclinic space group Cc, with a = 13.102(5) {\AA}, b = 15.495(5) {\AA}, c = 10.237(4) {\AA}, β = 127.856(4) ° and Z = 4. It was obtained via in situ oxidation. The histidinato-cobalt complexes with a cis-imidazole, cis-amine and cis-carboxylate configuration form a 3D supramolecular architecture of 1 via hydrogen bonding. Upon the addition of isonicotinic acid under similar reaction conditions, a new polymer [Co2II(d-His)(l-His)(INT)] · H2O · ClO4 (2) was obtained. Compound 2 crystallizes in the monoclinic space group P21/n, with a = 9.848(2) {\AA}, b = 11.844(2) {\AA}, c = 21.444(4) {\AA}, β = 92.09(3) ° and Z = 4. In polymer 2, a novel kind of 16 nucleus cyclohexane-like chair conformation grid is formed. Each grid consists of four tetranucleus cluster units and four isonicotinate spacers. The novel tetranucleus clusters which are made up of four adjacent O-Co-N octahedra can be seen as the secondary building units (SBUs) for 2. Finally the grids form the coupling strands of opposite helixes via a connection of SBUs and assemble to the zigzag layers which organize into an embedding 3D supramolecular structure through hydrogen bonding. The spectroscopy and magnetic properties of two compounds were also measured. The FT-IR spectra provide an additional evidence for coordination environments for two compounds. The XPS result can provide assistant evidence for the conclusion that the valence of Co ions in 1 is III, as it is tested mainly in single X-ray diffraction and magnetic measurement. The diamagnetic-like phenomenon is shown for 1 and the paramagnetic-like phenomenon is displayed for 2.",
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AU - Fan, Rong

AU - Li, Rui Peng

AU - Pan, Guo Qiang

AU - Tian, Yang Chao

AU - Sheng, Liu Si

AU - Pan, Long

AU - Li, Jing

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N2 - A complex with a new [CoIII(d-His)(l-His)] · ClO4 (1) configuration was synthesized and characterized. Compound 1 crystallizes in the monoclinic space group Cc, with a = 13.102(5) Å, b = 15.495(5) Å, c = 10.237(4) Å, β = 127.856(4) ° and Z = 4. It was obtained via in situ oxidation. The histidinato-cobalt complexes with a cis-imidazole, cis-amine and cis-carboxylate configuration form a 3D supramolecular architecture of 1 via hydrogen bonding. Upon the addition of isonicotinic acid under similar reaction conditions, a new polymer [Co2II(d-His)(l-His)(INT)] · H2O · ClO4 (2) was obtained. Compound 2 crystallizes in the monoclinic space group P21/n, with a = 9.848(2) Å, b = 11.844(2) Å, c = 21.444(4) Å, β = 92.09(3) ° and Z = 4. In polymer 2, a novel kind of 16 nucleus cyclohexane-like chair conformation grid is formed. Each grid consists of four tetranucleus cluster units and four isonicotinate spacers. The novel tetranucleus clusters which are made up of four adjacent O-Co-N octahedra can be seen as the secondary building units (SBUs) for 2. Finally the grids form the coupling strands of opposite helixes via a connection of SBUs and assemble to the zigzag layers which organize into an embedding 3D supramolecular structure through hydrogen bonding. The spectroscopy and magnetic properties of two compounds were also measured. The FT-IR spectra provide an additional evidence for coordination environments for two compounds. The XPS result can provide assistant evidence for the conclusion that the valence of Co ions in 1 is III, as it is tested mainly in single X-ray diffraction and magnetic measurement. The diamagnetic-like phenomenon is shown for 1 and the paramagnetic-like phenomenon is displayed for 2.

AB - A complex with a new [CoIII(d-His)(l-His)] · ClO4 (1) configuration was synthesized and characterized. Compound 1 crystallizes in the monoclinic space group Cc, with a = 13.102(5) Å, b = 15.495(5) Å, c = 10.237(4) Å, β = 127.856(4) ° and Z = 4. It was obtained via in situ oxidation. The histidinato-cobalt complexes with a cis-imidazole, cis-amine and cis-carboxylate configuration form a 3D supramolecular architecture of 1 via hydrogen bonding. Upon the addition of isonicotinic acid under similar reaction conditions, a new polymer [Co2II(d-His)(l-His)(INT)] · H2O · ClO4 (2) was obtained. Compound 2 crystallizes in the monoclinic space group P21/n, with a = 9.848(2) Å, b = 11.844(2) Å, c = 21.444(4) Å, β = 92.09(3) ° and Z = 4. In polymer 2, a novel kind of 16 nucleus cyclohexane-like chair conformation grid is formed. Each grid consists of four tetranucleus cluster units and four isonicotinate spacers. The novel tetranucleus clusters which are made up of four adjacent O-Co-N octahedra can be seen as the secondary building units (SBUs) for 2. Finally the grids form the coupling strands of opposite helixes via a connection of SBUs and assemble to the zigzag layers which organize into an embedding 3D supramolecular structure through hydrogen bonding. The spectroscopy and magnetic properties of two compounds were also measured. The FT-IR spectra provide an additional evidence for coordination environments for two compounds. The XPS result can provide assistant evidence for the conclusion that the valence of Co ions in 1 is III, as it is tested mainly in single X-ray diffraction and magnetic measurement. The diamagnetic-like phenomenon is shown for 1 and the paramagnetic-like phenomenon is displayed for 2.

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