Synthesis, Characterization and Crystal Structures of 2,2’-Bipyride Complexes of Chromium(III)

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Published: Mar 30, 2018
Keywords:
chromium, 2,2’-bipyridine

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Yuppharat Phinkaew
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand.
Saowanit Saithong
Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkla, Thailand.
Chaveng Pakawatchai
Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkla, Thailand.
Choosak Poonsawat
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand.
Somying Leelasubcharoen*
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand.

Abstract

Reaction of CrCl3 · 6 H2O with 2,2’ bipyridine (bipy) in ethanol in the mole ratio of 1:1 and 1:2 at ambient temperature and pressure results in the formation of the cationic complexes [Cr(bipy)(H2O)2Cl2]Cl · H2O (1 · H2O) and [Cr(bipy)2Cl2]Cl · 2 H2O (2 · 2 H2O), respectively. The crystal structures were determined by X-ray diffraction. 1 crystallized in the orthorhombic space group Pccn with a = 6.8781 (6) Å, b = 11.9147 (11) Å, c = 20.2969 (18) Å, and α = β = γ = 90° with Z = 4. 2 crystallized in the triclinic space group P-1with a = 7.0360 (5) Å, b = 12.3914 (10) Å, c = 13.0311 (10) Å, and α = 90.70000 (10)°, β = 93.5140 (10)°, γ = 100.0230 (10)° with Z = 2. The complexes are six-coordinated and have normal planarity. Both complexes were characterized by spectrophotometry and the chromium center appears as an oxidation state of +3 approved by effective magnetic moment.


Keywords: chromium, 2,2’-bipyridine


Corresponding author: E-mail: somying@kku.ac.th

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How to Cite
Phinkaew, Y., Saithong, S., Pakawatchai, C., Poonsawat, C., & Leelasubcharoen*, S. (2018). Synthesis, Characterization and Crystal Structures of 2,2’-Bipyride Complexes of Chromium(III). CURRENT APPLIED SCIENCE AND TECHNOLOGY, 6(2b), 607–611. retrieved from https://li01.tci-thaijo.org/index.php/cast/article/view/150019
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Vol. 6 No. 2b (2006)
Section
Original Research Articles

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