Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Preparation and crystal structure of azido bridged one-dimensional polymeric cadmium(II) complex, [Cd(N3)2(2-ethylimidazole)2]

  • Suh, Seung Wook (Department of Chemistry, Konyang University) ;
  • Kim, Inn Hoe (Department of Chemistry, Konyang University) ;
  • Kim, Chong-Hyeak (Chemical Analysis Laboratory, Korea Research Institute of Chemical Technology)
  • Received : 2005.08.11
  • Accepted : 2005.09.22
  • Published : 2005.10.25
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Abstract

The title complex, $[Cd(N_3)_2(2-ethylimidazole)_2]$, I, has been prepared and characterized by X-ray single crystallography. The complex I crystallizes in the monoclinic system, Cc space group with a = 16.200(3), b = 12.926(3), $c=7.007(1){\AA}$, ${\beta}=102.29(3)^{\circ}$, $V=1433.7(5){\AA}^3$, Z = 4, $R_1=0.0239$ and ${\omega}R_2=0.0604$ for 1874 independent reflections. Cd(II) atom has a slightly distorted octahedral coordination geometry, with four end-on (${\mu}-1$,1) bridging azido ligands and two 2-ethylimidazole ligands bonding through nitrogen atom. The central cadmium(II) atoms are run in parallel to the c-axis and are doubly bridged with neighboring cadmium(II) atoms by the end-on (${\mu}-1$,1) bridging azido ligands. Thus, this complex has a one-dimensional zigzag chain structure in which the 2-ethylimidazole is in the cis conformation.

$[Cd(N_3)_2(2-ethylimidazole)_2]$ 착물을 합성하고 단결정 X-선 회절법으로 구조를 규명하였다. 이 착물은 단사정계, 공간군 Cc, a=16.200(3), b=12.926(3), $c=7.007(1){\AA}$, ${\beta}=102.29(3)^{\circ}$, $V=1433.7(5){\AA}^3$, Z=4로 결정화되었으며, 1874 개의 독립적인 회절반점에 대한 최종 신뢰도 인자 $R_1$ 및 ${\omega}R_2$ 값은 각각 0.0239 및 0.0604 이었다. Cd(II) 금속 원자는 4개의 azido 리간드와 2개의 2-ethylimidazole 리간드의 질소 원자가 배위되어 약간 찌그러진 팔면체 구조를 나타낸다. c 축 방향으로 배열되어 있는 Cd(II) 금속 원자 사이를 azido 리간드가 end-on (${\mu}-1$,1) 형태로 bridge 하고 2-ethylimidazole 리간드가 시스 형태로 결합하여 이 착물은 1차원의 zigzag 사슬 구조를 형성한다.

Keywords

References

  1. M. Fujita, 'Comprehensive Supramolecular Chemistry', Vol. 9, p. 253, J. P. Sauvage and M. W. Hosseini, Eds., Pergamon Press, Oxford, U.K. (1996)
  2. T. Iwamoto, 'Comprehensive Supramolecular Chemistry', Vol. 6, p. 643, D. D. MacNicol, F. Toda and R. Bishop, Eds., Pergamon Press, Oxford, U.K. (1996)
  3. S. R. Batten and R. Robson, Angew. Chem. Int. Ed., 37, 1460 (1998) https://doi.org/10.1002/(SICI)1521-3773(19980619)37:11<1460::AID-ANIE1460>3.0.CO;2-Z
  4. C. H. Kim, Ph.D. Thesis, The University of Tokyo, Japan (1996)
  5. R. Cortes, M. K. Urtiaga, L. Lezama, J. L. Pizarro, M. I. Arriortua and T. Rojo, Inorg. Chem., 36, 5016 (1997) https://doi.org/10.1021/ic960969h
  6. G. Demunno, G. Viau, M. Julve, F. Lloret and J. Faus, Inorg. Chim. Acta, 257, 121 (1997) https://doi.org/10.1016/S0020-1693(96)05467-9
  7. K. Vrieze and G. V. Koten, 'Comprehensive Coordination Chemistry', Vol. 2, p. 225, S. G. Wilkinson, R. D. Gillard and J. A. McCleverty, Eds., Pergamon Press, Oxford, U.K. (1987)
  8. B. W. Brown and E. C. Lingafelter, Acta Cryst., 16, 753 (1963) https://doi.org/10.1107/S0365110X63002590
  9. M. Cannas, G. Carta, A. Cristini and G. Marongiu, J. Chem. Soc., Dalton Trans. 300 (1976) https://doi.org/10.1039/dt9760000300
  10. M. Taniguchi and A. Ouchi, Bull. Chem. Soc. Jpn., 60, 1192 (1987) https://doi.org/10.1246/bcsj.60.1192
  11. P. J. Squattrito, T. Toschitake and S. I. Nishikiori, Chem. Commun., 2665 (1996) https://doi.org/10.1039/cc9960002665
  12. I. H. Kim, S. W. Suh, C. H. Kim, J. Y. Kim and I. H. Suh, Korean J. Cryst., 12, 207 (2001)
  13. I. H. Kim, J. Y. Cho, C. H. Kim, J. S. Kim and I. H. Suh, Korean J. Cryst., 12, 222 (2001)
  14. P. Chaudhuri, T. Weyhermuller, E. Bill and K. Wieghardt, Inorg. Chim. Acta, 252, 195 (1996) https://doi.org/10.1016/S0020-1693(96)05314-5
  15. K. Nakamoto, 'Infrared and Raman Spectra of Inorganic and Coordination Compounds', part B, John Wiley and Sons Inc. New York, 1997
  16. Enraf-Nonius, Structure Determination Package, Enraf- Nonius, Delft, Netherlands, 1985
  17. Siemens, SHELXTL Structure Analysis Package, Siemens, Karlsruhe, Germany, 1998
  18. G. M. Sheldrick, Acta Cryst., A46, 467 (1990) https://doi.org/10.1107/S0108767390000277