Spectroscopic Characterization of Croconate Bridging Complex: Conversion of Rhodizonate (C6O6 2-) to Croconate Bridging Ligand in a Pyridine Modified Large Macrocyclic Metal Arrangements

Authors

  • Md Mahbubul Alam Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114
  • Ramkrishna Saha Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114
  • Md Rezwan Miah Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114
  • Belal Ahmed Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114
  • Iqbal Ahmed Siddiquey Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114

DOI:

https://doi.org/10.3329/jbas.v40i2.30765

Keywords:

Croconate bridging ligand, Macrocyclic metal arrangements, Rhodizonic acid

Abstract

Rhodizonic acid (H2RHOD) was reacted with Co(PF6)2.6H2O in the presence of pyridine modified large macrocyclic ligand (H2Lopy) and triethylamine in N,N-dimethylformamide under argon atmosphere. Instead of [Co4(RHOD)2(Lopy)](PF6)2 (1), the main product of this reaction was a crystalline compound [Co4(CROC)2(Lopy)](PF6)2, which was isolated in low yield (< 25%). Based on the elemental analysis, ESI-mass spectroscopy, and infrared spectrum, the isolated compound was confirmed to be [Co4(CROC)2(Lopy)](PF6)2 (2), where CROC2- is croconate anion C5O52-.

Journal of Bangladesh Academy of Sciences, Vol. 40, No. 2, 101-108, 2016

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Author Biography

Md Mahbubul Alam, Department of Chemistry, Shahjalal University of Science and Technology, Sylhet-3114



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Published

2016-12-22

How to Cite

Alam, M. M., Saha, R., Miah, M. R., Ahmed, B., & Siddiquey, I. A. (2016). Spectroscopic Characterization of Croconate Bridging Complex: Conversion of Rhodizonate (C6O6 2-) to Croconate Bridging Ligand in a Pyridine Modified Large Macrocyclic Metal Arrangements. Journal of Bangladesh Academy of Sciences, 40(2), 101–108. https://doi.org/10.3329/jbas.v40i2.30765

Issue

Vol. 40 No. 2 (2016)

Section

Articles