Research Article

Trissarcosine barium(2 + ) dibromide—a new complex of N-methylglycine

  1. Monika Trzebiatowska-Gusowska1,*,
  2. Anna Ga̧gor2,
  3. Jan Baran2,
  4. Marek Drozd2

Article first published online: 10 OCT 2008

DOI: 10.1002/jrs.2127

Issue

Journal of Raman Spectroscopy

Journal of Raman Spectroscopy

Volume 40, Issue 3, pages 315–322, March 2009

Additional Information

How to Cite

Trzebiatowska-Gusowska, M., Ga̧gor, A., Baran, J. and Drozd, M. (2009), Trissarcosine barium(2 + ) dibromide—a new complex of N-methylglycine. J. Raman Spectrosc., 40: 315–322. doi: 10.1002/jrs.2127

Author Information

  1. 1

    Faculty of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

  2. 2

    W. Trzebiatowski Institute of Low Temperature and Structure Research PAS, P No. 1410, 50-950 Wrocław 2, Poland

*Faculty of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.

Publication History

  1. Issue published online: 6 MAR 2009
  2. Article first published online: 10 OCT 2008
  3. Manuscript Accepted: 27 AUG 2008
  4. Manuscript Received: 9 MAY 2008

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Keywords:

  • sarcosine;
  • TSCC;
  • hydrogen bond;
  • phase transition;
  • vibrational spectroscopy;
  • crystal structure

Abstract

We obtained a new complex containing sarcosine (CH3NH2+CH2COO−) and barium(2 + ) dibromide (TSBB) in 3:1 molar ratio, as well as its deuterated analog. Single-crystal X-ray diffraction measurements show that TSBB crystallizes in the monoclinic system, space group P2(1)/c. The unit cell parameters are as follows: a = 18.345(4) Å, b = 10.668(2) Å, c = 8.9212(18) Å, β = 91.86(3)°, and Z = 4. The structure was determined with final R1 = 0.0396 (for I > 2σI). The crystal possesses a pseudohexagonal symmetry down c axis showing the resemblance to the crystal structure of trissarcosine calcium chloride (TSCC). There are N[BOND]HBr hydrogen bonds (HB) of six types. TSBB crystal undergoes a phase transition at 416 K (heating)–415 K (cooling) of continuous nature. The spectroscopic [Infrared (IR) and Raman] investigation of the crystal was performed at room temperature. The results are discussed with respect to the crystallographic data, as well as the results obtained for TSCC crystal. Copyright © 2008 John Wiley & Sons, Ltd.

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