alexa Role of Double Metal Cyanides in Chemical Evolution: In
ISSN: 2332-2519

Journal of Astrobiology & Outreach
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Research Article

Role of Double Metal Cyanides in Chemical Evolution: Interaction of Ribose Nucelotides with Metal Hexacyanocobaltate(III)

Rachana S1, Anand Kumar2, Asif Iqubal Md1 and Kamaluddin1*
1Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee–247667 UttaraKhand, India
2Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, Punjab-144011, India
Corresponding Author : Kamaluddin
Department of Chemistry
Indian Institute of Technology Roorkee
Roorkee–247667 Uttara Khand, India
Tel: +91-1332-285796
E-mail: [email protected]
Received: August 01, 2015 Accepted: August 14, 2015 Published: August 18, 2015
Citation: Rachana S, Anand Kumar, Asif Iqubal Md, Kamaluddin (2015) Role of Double Metal Cyanides in Chemical Evolution: Interaction of Ribose Nucelotides with Metal Hexacyanocobaltate(III). Astrobiol Outreach 3:138. doi:10.4172/2332-2519.1000138
Copyright: © 2015 Rachana S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Based on the hypothesis on the presence of double metal cyanides in the primeval seas and their role as prebiotic catalyst, adsorption of RNA components, 5΄-GMP, 5΄-AMP, 5΄-CMP and 5΄-UMP on metal(II) hexacyanocobaltate(III) (MHCCo; M=Mn, Fe, Ni, Zn) has been investigated. The adsorption data obtained at neutral pH were found to follow Langmuir adsorption in the concentration range 1.0 × 10-4 M to 3.0 × 10-4 M. The value of Langmuir constants, Xm and KL were calculated from the slope and intercept of the respective isotherms. On the basis of infrared (IR) spectral studies of ribonucleotides, MHHCo, and ribonucleotides-MHCCo adducts, we propose that the nitrogen base, carbonyl and phosphate moiety of ribose nucleotides interact with the outer divalent metal ion of the MHCCo. A higher affinity as well as larger amount of adsorption of all the four ribonucleotides was found on the surface of FeHCCo, having a surface area of 238.67 m2/g. Based on our finding, it is proposed that surface area of MHCCos plays an important role in ribonucleotides adsorption by MHCCos. Among nucleotides studied adsorption affinity of 5΄-AMP was found maximum.

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