Isomorphic metal malonates with N-aminoguanidine: MCo2O4 (M = Ni & Zn) nanoparticle synthesis via a (AmgH)2[M1/3Co2/3(mal)2(H2O)2] precursor solid solution

Rajendran Selvakumar; Steven J. Geib; Thathan Premkumar; Sundararajan Vairam; Subbiah Govindarajan

doi:10.1039/c5nj01134e

Isomorphic metal malonates with N-aminoguanidine: MCo₂O₄ (M = Ni & Zn) nanoparticle synthesis via a (AmgH)₂[M_1/3Co_2/3(mal)₂(H₂O)₂] precursor solid solution

Rajendran Selvakumar
, Steven J. Geib
, Thathan Premkumar
, Sundararajan Vairam
, Subbiah Govindarajan

University College

Bharathiar University
University of Pittsburgh
Anna University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Divalent metal complexes of malonate with aminoguanidine possessing (AmgH)₂[M(mal)₂(H₂O)₂] [M = Co (1), Ni (2) or Zn (3); mal = malonate anion and AmgH = aminoguanidinium cation] stoichiometry and their solid solutions, (AmgH)₂[Ni_0.5Co_0.5(mal)₂(H₂O)₂] (4) and (AmgH)₂[M_1/3Co_2/3(mal)₂(H₂O)₂] [where M = Ni (5) or Zn(6)], were prepared and characterized by analytical, thermal and powder X-ray diffraction studies. The crystal and molecular structures of both cobalt and nickel compounds were isomorphic, crystallizing in the triclinic space group P1. The complexes exhibit similar modes of endo-followed by exothermic decomposition to produce respective metal oxides below 550 °C. Metal cobaltites, MCo₂O₄ where M = Ni and Zn, were obtained from the above solid solutions as decomposition residues by heating at 600, 700 and 800 °C in a silica crucible for 3 h. Spinel oxides nanoparticles were characterized by infrared spectra, powder X-ray diffraction patterns, scanning electron microscope coupled with energy dispersive X-ray analysis and transmission electron microscope studies.

Original language	English
Pages (from-to)	257-264
Number of pages	8
Journal	New Journal of Chemistry
Volume	40
Issue number	1
DOIs	https://doi.org/10.1039/c5nj01134e
State	Published - 2016

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title = "Isomorphic metal malonates with N-aminoguanidine: MCo2O4 (M = Ni \& Zn) nanoparticle synthesis via a (AmgH)2[M1/3Co2/3(mal)2(H2O)2] precursor solid solution",

abstract = "Divalent metal complexes of malonate with aminoguanidine possessing (AmgH)2[M(mal)2(H2O)2] [M = Co (1), Ni (2) or Zn (3); mal = malonate anion and AmgH = aminoguanidinium cation] stoichiometry and their solid solutions, (AmgH)2[Ni0.5Co0.5(mal)2(H2O)2] (4) and (AmgH)2[M1/3Co2/3(mal)2(H2O)2] [where M = Ni (5) or Zn(6)], were prepared and characterized by analytical, thermal and powder X-ray diffraction studies. The crystal and molecular structures of both cobalt and nickel compounds were isomorphic, crystallizing in the triclinic space group P1. The complexes exhibit similar modes of endo-followed by exothermic decomposition to produce respective metal oxides below 550 °C. Metal cobaltites, MCo2O4 where M = Ni and Zn, were obtained from the above solid solutions as decomposition residues by heating at 600, 700 and 800 °C in a silica crucible for 3 h. Spinel oxides nanoparticles were characterized by infrared spectra, powder X-ray diffraction patterns, scanning electron microscope coupled with energy dispersive X-ray analysis and transmission electron microscope studies.",

author = "Rajendran Selvakumar and Geib, \{Steven J.\} and Thathan Premkumar and Sundararajan Vairam and Subbiah Govindarajan",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2016.",

year = "2016",

doi = "10.1039/c5nj01134e",

language = "English",

volume = "40",

pages = "257--264",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Isomorphic metal malonates with N-aminoguanidine

T2 - MCo2O4 (M = Ni & Zn) nanoparticle synthesis via a (AmgH)2[M1/3Co2/3(mal)2(H2O)2] precursor solid solution

AU - Selvakumar, Rajendran

AU - Geib, Steven J.

AU - Premkumar, Thathan

AU - Vairam, Sundararajan

AU - Govindarajan, Subbiah

PY - 2016

Y1 - 2016

N2 - Divalent metal complexes of malonate with aminoguanidine possessing (AmgH)2[M(mal)2(H2O)2] [M = Co (1), Ni (2) or Zn (3); mal = malonate anion and AmgH = aminoguanidinium cation] stoichiometry and their solid solutions, (AmgH)2[Ni0.5Co0.5(mal)2(H2O)2] (4) and (AmgH)2[M1/3Co2/3(mal)2(H2O)2] [where M = Ni (5) or Zn(6)], were prepared and characterized by analytical, thermal and powder X-ray diffraction studies. The crystal and molecular structures of both cobalt and nickel compounds were isomorphic, crystallizing in the triclinic space group P1. The complexes exhibit similar modes of endo-followed by exothermic decomposition to produce respective metal oxides below 550 °C. Metal cobaltites, MCo2O4 where M = Ni and Zn, were obtained from the above solid solutions as decomposition residues by heating at 600, 700 and 800 °C in a silica crucible for 3 h. Spinel oxides nanoparticles were characterized by infrared spectra, powder X-ray diffraction patterns, scanning electron microscope coupled with energy dispersive X-ray analysis and transmission electron microscope studies.

AB - Divalent metal complexes of malonate with aminoguanidine possessing (AmgH)2[M(mal)2(H2O)2] [M = Co (1), Ni (2) or Zn (3); mal = malonate anion and AmgH = aminoguanidinium cation] stoichiometry and their solid solutions, (AmgH)2[Ni0.5Co0.5(mal)2(H2O)2] (4) and (AmgH)2[M1/3Co2/3(mal)2(H2O)2] [where M = Ni (5) or Zn(6)], were prepared and characterized by analytical, thermal and powder X-ray diffraction studies. The crystal and molecular structures of both cobalt and nickel compounds were isomorphic, crystallizing in the triclinic space group P1. The complexes exhibit similar modes of endo-followed by exothermic decomposition to produce respective metal oxides below 550 °C. Metal cobaltites, MCo2O4 where M = Ni and Zn, were obtained from the above solid solutions as decomposition residues by heating at 600, 700 and 800 °C in a silica crucible for 3 h. Spinel oxides nanoparticles were characterized by infrared spectra, powder X-ray diffraction patterns, scanning electron microscope coupled with energy dispersive X-ray analysis and transmission electron microscope studies.

UR - https://www.scopus.com/pages/publications/84953330754

U2 - 10.1039/c5nj01134e

DO - 10.1039/c5nj01134e

M3 - Article

AN - SCOPUS:84953330754

SN - 1144-0546

VL - 40

SP - 257

EP - 264

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 1

ER -

Isomorphic metal malonates with N-aminoguanidine: MCo₂O₄ (M = Ni & Zn) nanoparticle synthesis via a (AmgH)₂[M_1/3Co_2/3(mal)₂(H₂O)₂] precursor solid solution

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