A Novel Blue Luminescent Material Na2[Co(C2O4)2(H2O)2]·6H2O

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From the journal:

Dalton Transactions

A novel blue luminescent material Na2[Co(C2O4)2(H2O)2]·6H2O: synthesis, structure, luminescence and magnetic properties†

A. Saritha,a B. Raju,b M. Narsimhulu,a D. Narayana Rao,b P. Raghavaiahc and K. A. Hussain*a Author affiliations

* Corresponding authors

a Department of Physics, Kakatiya University, Warangal 506009, India E-mail: [email protected]

b School of Physics, University of Hyderabad, Hyderabad 500046, India E-mail: [email protected]

c Department of Chemistry, Dr. Harisingh Gour University, Saugor [M.P] 470003, India

Abstract

The synthesis, crystal structure and physical properties of new disodium trans-diaquabis(oxalato)cobaltate(II)hexahydrate {Na2[Co(C2O4)2(H2O)2]·6H2O} crystals have been investigated. Single crystal X-ray analysis reveals that this compound crystallizes in the triclinic system with the space group P. The structure of this complex consists of [Co(C2O4)2(H2O)2]2− anionic units with a slightly distorted octahedral geometry of cobalt surrounded by four oxygen atoms of two oxalate groups. The anionic units are interlinked by two Na+ ions with different octahedral and distorted octahedral environments. The electronic absorption spectra of the compound exhibit bands at 208, 246 and 526 nm in the UV and visible regions. A strong blue luminescence was observed at room temperature when excited at 355 nm. The M(H) curve at 2 K shows a significant nonlinear behaviour with almost zero coercivity which clearly indicates an extremely weak antiferromagnetic/ferromagnetic state of the complex.

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Supplementary files

• Supplementary information PDF (159K)
• Crystal structure data CIF (13K)

Article information

DOI https://doi.org/10.1039/C6DT01185C Article type Paper Submitted 27 Mar 2016 Accepted 10 Apr 2016 First published 12 Apr 2016

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Dalton Trans., 2016,45, 8500-8505 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS

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A novel blue luminescent material Na2[Co(C2O4)2(H2O)2]·6H2O: synthesis, structure, luminescence and magnetic properties

A. Saritha, B. Raju, M. Narsimhulu, D. N. Rao, P. Raghavaiah and K. A. Hussain, Dalton Trans., 2016, 45, 8500 DOI: 10.1039/C6DT01185C

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A. Saritha B. Raju M. Narsimhulu D. Narayana Rao P. Raghavaiah K. A. Hussain

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