Steric effect on construction of extended architectures of Ni(II) complexes directed by intermolecular C-H···F and C-H···O interactions

H. Kwak; G. H. Eom; S. H. Lee; H. G. Koo; S. P. Jang; J. Lee; W. Shin; M. S. Lah; C. Kim; S. J. Kim; Y. Kim

doi:10.1007/s10947-010-0140-x

Steric effect on construction of extended architectures of Ni(II) complexes directed by intermolecular C-H···F and C-H···O interactions

H. Kwak, G. H. Eom, S. H. Lee, H. G. Koo, S. P. Jang, J. Lee, W. Shin, M. S. Lah, C. Kim, S. J. Kim, Y. Kim

Department of Chemistry & Nanoscience

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

2 Scopus citations

Abstract

Five new Ni(II) complexes with pyridine carboxamide ligands have been synthesized and the crystal structures of three of the complexes were determined. Strong distortion effects of 6-methyl substitution were observed in the complexes with 6-methyl-substituted pyridyl bpb ligands. The C-H···F and C-H···O hydrogen bond interactions build extended architectures in the crystals studied. This result suggests that the steric effect of 6-methyl substitution plays an important role in the distortion of the structure, and the 6-methyl substitution can facilitate hydrogen bond interactions between methyl hydrogen atoms and O(carbonyl) or F atoms. Twelve Ni(II) complexes, including seven complexes reported previously, show reversible redox behavior, implying that the reduced Ni(I) state of each complex is stable in the time scale of CV measurement. The steric effect of R₁ substituent and the electronic effects of X₁ and X₂ groups were found to be the main factors contributing to the shift of the redox potential of the Ni(II) complexes

Original language	English
Pages (from-to)	923-930
Number of pages	8
Journal	Journal of Structural Chemistry
Volume	51
Issue number	5
DOIs	https://doi.org/10.1007/s10947-010-0140-x
State	Published - Oct 2010

Bibliographical note

Funding Information:
Financial support from Korea Ministry Environment “ET-Human resource development Project,” the Korean Science&Engineering Foundation (R01-2008-000-20704-0 and 2009-0074066), the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0082832), and the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (grant R11-2005-008-00000-0) is gratefully acknowledged.

Keywords

Pyridine carboxamide
crystal structure
cyclic voltammetry
electronic effect
hydrogen bond
nickel(II) complex
supramolecular architecture
weak interactions

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10.1007/s10947-010-0140-x

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@article{c3233bfeb78b42dba14fa23703112d4b,

title = "Steric effect on construction of extended architectures of Ni(II) complexes directed by intermolecular C-H···F and C-H···O interactions",

abstract = "Five new Ni(II) complexes with pyridine carboxamide ligands have been synthesized and the crystal structures of three of the complexes were determined. Strong distortion effects of 6-methyl substitution were observed in the complexes with 6-methyl-substituted pyridyl bpb ligands. The C-H···F and C-H···O hydrogen bond interactions build extended architectures in the crystals studied. This result suggests that the steric effect of 6-methyl substitution plays an important role in the distortion of the structure, and the 6-methyl substitution can facilitate hydrogen bond interactions between methyl hydrogen atoms and O(carbonyl) or F atoms. Twelve Ni(II) complexes, including seven complexes reported previously, show reversible redox behavior, implying that the reduced Ni(I) state of each complex is stable in the time scale of CV measurement. The steric effect of R1 substituent and the electronic effects of X1 and X2 groups were found to be the main factors contributing to the shift of the redox potential of the Ni(II) complexes",

keywords = "Pyridine carboxamide, crystal structure, cyclic voltammetry, electronic effect, hydrogen bond, nickel(II) complex, supramolecular architecture, weak interactions",

author = "H. Kwak and Eom, {G. H.} and Lee, {S. H.} and Koo, {H. G.} and Jang, {S. P.} and J. Lee and W. Shin and Lah, {M. S.} and C. Kim and Kim, {S. J.} and Y. Kim",

note = "Funding Information: Financial support from Korea Ministry Environment “ET-Human resource development Project,” the Korean Science&Engineering Foundation (R01-2008-000-20704-0 and 2009-0074066), the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0082832), and the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (grant R11-2005-008-00000-0) is gratefully acknowledged.",

year = "2010",

month = oct,

doi = "10.1007/s10947-010-0140-x",

language = "English",

volume = "51",

pages = "923--930",

journal = "Journal of Structural Chemistry",

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number = "5",

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T1 - Steric effect on construction of extended architectures of Ni(II) complexes directed by intermolecular C-H···F and C-H···O interactions

AU - Kwak, H.

AU - Eom, G. H.

AU - Lee, S. H.

AU - Koo, H. G.

AU - Jang, S. P.

AU - Lee, J.

AU - Shin, W.

AU - Lah, M. S.

AU - Kim, C.

AU - Kim, S. J.

AU - Kim, Y.

N1 - Funding Information: Financial support from Korea Ministry Environment “ET-Human resource development Project,” the Korean Science&Engineering Foundation (R01-2008-000-20704-0 and 2009-0074066), the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0082832), and the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (grant R11-2005-008-00000-0) is gratefully acknowledged.

PY - 2010/10

Y1 - 2010/10

N2 - Five new Ni(II) complexes with pyridine carboxamide ligands have been synthesized and the crystal structures of three of the complexes were determined. Strong distortion effects of 6-methyl substitution were observed in the complexes with 6-methyl-substituted pyridyl bpb ligands. The C-H···F and C-H···O hydrogen bond interactions build extended architectures in the crystals studied. This result suggests that the steric effect of 6-methyl substitution plays an important role in the distortion of the structure, and the 6-methyl substitution can facilitate hydrogen bond interactions between methyl hydrogen atoms and O(carbonyl) or F atoms. Twelve Ni(II) complexes, including seven complexes reported previously, show reversible redox behavior, implying that the reduced Ni(I) state of each complex is stable in the time scale of CV measurement. The steric effect of R1 substituent and the electronic effects of X1 and X2 groups were found to be the main factors contributing to the shift of the redox potential of the Ni(II) complexes

AB - Five new Ni(II) complexes with pyridine carboxamide ligands have been synthesized and the crystal structures of three of the complexes were determined. Strong distortion effects of 6-methyl substitution were observed in the complexes with 6-methyl-substituted pyridyl bpb ligands. The C-H···F and C-H···O hydrogen bond interactions build extended architectures in the crystals studied. This result suggests that the steric effect of 6-methyl substitution plays an important role in the distortion of the structure, and the 6-methyl substitution can facilitate hydrogen bond interactions between methyl hydrogen atoms and O(carbonyl) or F atoms. Twelve Ni(II) complexes, including seven complexes reported previously, show reversible redox behavior, implying that the reduced Ni(I) state of each complex is stable in the time scale of CV measurement. The steric effect of R1 substituent and the electronic effects of X1 and X2 groups were found to be the main factors contributing to the shift of the redox potential of the Ni(II) complexes

KW - Pyridine carboxamide

KW - crystal structure

KW - cyclic voltammetry

KW - electronic effect

KW - hydrogen bond

KW - nickel(II) complex

KW - supramolecular architecture

KW - weak interactions

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U2 - 10.1007/s10947-010-0140-x

DO - 10.1007/s10947-010-0140-x

M3 - Article

AN - SCOPUS:78649505516

SN - 0022-4766

VL - 51

SP - 923

EP - 930

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

IS - 5

ER -

Steric effect on construction of extended architectures of Ni(II) complexes directed by intermolecular C-H···F and C-H···O interactions

Abstract

Bibliographical note

Keywords

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