Crystal structure and spectroscopic properties of trans-dichlorobis(1,3- propanediamine) chromium(III) perchlorate

J. H. Choi, A. Takayama, T. Suzuki

Research output: Contribution to journalArticle

Abstract

The crystal structure of trans-[Cr(tn) 2Cl 2]ClO 4 (tn = 1,3-propanediamine) is determined by a single-crystal X-ray diffraction study at 185 K. The Cr atom is in a slightly distorted octahedral environment coordinated by four nitrogen atoms of two tn ligands and two chlorine atoms in trans position. The orientations of two six-membered rings in the complex cation are in an anti chair-chair conformation with respect to each other. The mean Cr-N(tn) and Cr-Cl bond lengths are 2.0862(2) Å and 2.3112(6) Å respectively. The ClO 4 - anions have a slightly distorted tetrahedral geometry with Cl-O lengths and O-Cl-O angles influenced by the hydrogen bonding. The crystal packing is stabilized by several hydrogen bonds. The infrared and electronic absorption spectral properties are also described along with the results of X-ray crystallography.

Original languageEnglish
Pages (from-to)397-402
Number of pages6
JournalJournal of Structural Chemistry
Volume53
Issue number2
DOIs
Publication statusPublished - Mar 1 2012

Keywords

  • 1,3-propanediamine
  • Chromium(III) complex
  • Crystal structure
  • Spectral properties
  • Trans-isomer

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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