Volume 56, Issue 2 2000124
Original Paper

A Simple Synthesis Method for Growing Single Crystals of a Copper Coordination Polymer [Cu(C2O4)(4-aminopyridine)2(H2O)]n, and its Theoretical and Physical Properties Studies

George Mathew

George Mathew

School of Physics, IISER Thiruvananthapuram, Thiruvananthapuram, 695551 India

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Sebastian Francis

Sebastian Francis

School of Chemistry, IISER Thiruvananthapuram, Thiruvananthapuram, 695551 India

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Neeraj Kumar Rajak

Neeraj Kumar Rajak

School of Physics, IISER Thiruvananthapuram, Thiruvananthapuram, 695551 India

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Sarojini Gopinathan Praveen

Sarojini Gopinathan Praveen

School of Physics, IISER Thiruvananthapuram, Thiruvananthapuram, 695551 India

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Chakkalakal Vardunny Tomy

Chakkalakal Vardunny Tomy

Department of Physics, IIT Bombay, Mumbai, 400076 India

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Deepshikha Jaiswal-Nagar

Corresponding Author

Deepshikha Jaiswal-Nagar

School of Physics, IISER Thiruvananthapuram, Thiruvananthapuram, 695551 India

E-mail: deepshikha@iisertvm.ac.in

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First published: 14 January 2021
Citations: 2

Abstract

This work reports on a novel and simple synthetic route for the growth of metal–organic crystal [Cu(C2O4)(4-aminopyridine)2(H2O)]n of large size using the technique of liquid–liquid diffusion or layer diffusion. Single-crystal X-ray diffraction measurements revealed a very good quality of the grown single crystals with a small value 1.101 of goodness-of-fit R. Rietveld refinement done on powder X-ray diffractogram obtained on few single crystals crushed together revealed a very small value of R as 3.45, indicating very good crystal quality in a batch of crystals. Density functional theory with three different basis sets generated the optimized geometry of a monomeric unit as well as its vibrational spectra. Comparison between experimentally obtained bond lengths, bond angles, IR frequencies, etc. suggests (B3LYP/LanL2DZ, B3LYP/6-311++ G(d,p) basis set to describe the properties the best. Magnetic susceptibility measurements confirm the metal–organic crystal [Cu(C2O4)(4-aminopyridine)2(H2O)]n to be a very good representation of a spin 1/2 Heisenberg antiferromagnet.

Conflict of Interest

The authors declare no conflict of interest.

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