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Butcher RJ, Brewer G, Zemba M. Crystal structure of anhydrous poly[bis-(μ2-sarcosinato-κ(3) O,N:O')copper(II)]. Acta Crystallogr Sect E Struct Rep Online. 2014;70:207-9doi: 10.1107/S1600536814020418.
Butcher, R. J., Brewer, G., & Zemba, M. (2014). Crystal structure of anhydrous poly[bis-(μ2-sarcosinato-κ(3) O,N:O')copper(II)]. Acta crystallographica. Section E, Structure reports online, 70207-9. https://doi.org/10.1107/S1600536814020418
Butcher, Ray J, et al. "Crystal structure of anhydrous poly[bis-(μ2-sarcosinato-κ(3) O,N:O')copper(II)]." Acta crystallographica. Section E, Structure reports online vol. 70 (2014): 207-9. doi: https://doi.org/10.1107/S1600536814020418
Butcher RJ, Brewer G, Zemba M. Crystal structure of anhydrous poly[bis-(μ2-sarcosinato-κ(3) O,N:O')copper(II)]. Acta Crystallogr Sect E Struct Rep Online. 2014 Sep 17;70:207-9. doi: 10.1107/S1600536814020418. eCollection 2014 Oct 01. PMID: 25484653; PMCID: PMC4257172.
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Acta Crystallogr Sect E Struct Rep Online. 2014 Sep 17;70:207-9. doi: 10.1107/S1600536814020418. eCollection 2014 Oct 01.

Crystal structure of anhydrous poly[bis-(μ2-sarcosinato-κ(3) O,N:O')copper(II)].

Acta crystallographica. Section E, Structure reports online

Ray J Butcher, Greg Brewer, Matthew Zemba

Affiliations

  1. Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA.
  2. Department of Chemistry, The Catholic University of America, 620 Michigan Ave., N.E., Washington, DC 20064, USA.

PMID: 25484653 PMCID: PMC4257172 DOI: 10.1107/S1600536814020418

Abstract

The title compound, [Cu(C3H6NO2)2] n , is a bis-complex of the anion of sarcosine (N-methyl-glycine). The asymmetric unit consists of a copper(II) ion, located on a center of inversion, and one mol-ecule of the uninegative sarcosinate anion. The copper(II) ion exhibits a typical Jahn-Teller distorted [4 + 2] coordination geometry. The four shorter equatorial bonds are to the nitro-gen and carboxyl-ate O atoms of two sarcosinate anions, and the longer axial bonds are to carboxyl-ate O atoms of neighboring complexes. The overall structure is made up from two chains formed by these longer axial Cu-O bonds, one extending parallel to [011] and the other parallel to [0-11]. Each one-dimensional array is connected by the equatorial bridging moieties to the chains on either side, creating an extended two-dimensional framework parallel to (100). There is a single inter-molecular hydrogen-bonding inter-action within the sheets between the amino NH group and an O atom of an adjacent mol-ecule.

Keywords: anhydrous bis­(sarcosinato)copper(II); crystal structure; non-proteinogenic amino acid

References

  1. Inorg Chem. 1996 Aug 14;35(17):5055-5060 - PubMed
  2. Inorg Chem. 1996 Oct 23;35(22):6466-6472 - PubMed
  3. Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22 - PubMed

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