<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0121-1935</journal-id>
<journal-title><![CDATA[Revista de Ciencias]]></journal-title>
<abbrev-journal-title><![CDATA[rev. cienc.]]></abbrev-journal-title>
<issn>0121-1935</issn>
<publisher>
<publisher-name><![CDATA[Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-19352017000100113</article-id>
<article-id pub-id-type="doi">10.25100/rc.v21i1.6347</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Electrochemical studies of grid and linear type M2+ (M=Zn, Cd and Pb) complexes of a bis-(hydrazone) bearing two symmetric carboxylic groups]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giraldo]]></surname>
<given-names><![CDATA[Wilson L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[Elkin L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chaur]]></surname>
<given-names><![CDATA[Manuel N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Valle Departamento de Química ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>21</volume>
<numero>1</numero>
<fpage>113</fpage>
<lpage>129</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-19352017000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-19352017000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-19352017000100113&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Herein we present the preparation of a bis-(hydrazone) containing a pyridine-pyrimidine- pyridine framework. This compound can be visualized as a double arm system able of coordinating two metal ions in a terpyridine-like manner. By NMR (1D and 2D) it was determined a transoid conformation and an E configuration around the two imine double bonds. Complexation with M2+ (M = Zn, Cd, and Pb) ions resulted in grid and linear type structures which were studied by cyclic and squared wave voltammetry at different temperatures. No linear correlations of the redox potentials as a function of temperature were observed. The latter is likely due to rearrangements in the structure or to spin crossover events. The present results deserve further studies on the electronic properties of these types of compounds for the development of smart materials.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[hydrazones]]></kwd>
<kwd lng="en"><![CDATA[metallogrids]]></kwd>
<kwd lng="en"><![CDATA[electrochemistry]]></kwd>
<kwd lng="en"><![CDATA[spin crossover]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tatum]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Su]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Aprahamian]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simple hydrazone building blocks for complicated functional materials]]></article-title>
<source><![CDATA[Acc Chem Res]]></source>
<year>2014</year>
<volume>47</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>2141-9</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Su]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Aprahamian]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrazone-based switches, metallo-assemblies and sensors]]></article-title>
<source><![CDATA[Chem Soc Rev]]></source>
<year>2014</year>
<volume>43</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1963-81</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[EL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Multiple dynamics of hydrazone based compounds]]></article-title>
<collab>D'Vries RF.Zuluaga F.Chaur MN</collab>
<source><![CDATA[J Braz Chem Soc]]></source>
<year>2015</year>
<volume>26</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1265-73</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gordillo]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Soto-Monsalve]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Theoretical and experimental comparative study of a derivative from 2-pyridinecarboxaldehyde which exhibits configurational dynamics]]></article-title>
<collab>D´Vries RF.Chaur MN</collab>
<source><![CDATA[J Mol Struct]]></source>
<year>2016</year>
<volume>1119</volume>
<page-range>286-95</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chaur]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
<name>
<surname><![CDATA[Collado]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Configurational and constitutional information storage multiple dynamics in systems based on pyridyl and acyl hydrazones]]></article-title>
<source><![CDATA[Chem A Eur J]]></source>
<year>2011</year>
<volume>17</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>248-58</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carmona-Vargas]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Váquiro]]></surname>
<given-names><![CDATA[IY]]></given-names>
</name>
<name>
<surname><![CDATA[Jaramillo-Gómez]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[J-M]]></given-names>
</name>
<name>
<surname><![CDATA[Chaur]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Grid-type complexes of M2+ (M= Co, Ni, and Zn) with highly soluble bis (hydrazone) thiopyrimidine-based ligands: Spectroscopy and electrochemical properties]]></article-title>
<source><![CDATA[Inorganica Chimica Acta]]></source>
<year>2017</year>
<volume>468</volume>
<page-range>131-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gordillo]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Soto-Monsalve]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Carmona-Vargas]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[D'vries]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[J-M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Photochemical and Electrochemical Triggered Bis(hydrazone) Switch]]></article-title>
<source><![CDATA[Chem Eur J]]></source>
<year>2017</year>
<volume>23</volume>
<page-range>14872-82</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Barona]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Polo]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Chaur]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Photochemical and electrochemical studies on lanthanide complexes of 6-(hydroxymethyl) pyridine-2-carboxaldehyde [2-methyl-pyrimidine-4, 6-diyl] bis-hydrazone]]></article-title>
<source><![CDATA[Rev Colomb Quim]]></source>
<year>2014</year>
<volume>43</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-11</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uppadine]]></surname>
<given-names><![CDATA[LH]]></given-names>
</name>
<name>
<surname><![CDATA[Gisselbrecht]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Protonic modulation of redox properties in ionisable [2 x 2] grid-like metalloarrays]]></article-title>
<source><![CDATA[Chem Commun]]></source>
<year>2004</year>
<volume>21</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>718-9</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutchinson]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hanton]]></surname>
<given-names><![CDATA[LR]]></given-names>
</name>
<name>
<surname><![CDATA[Moratti]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The one pot synthesis of heterobimetallic complexes from a homoditopic pyrimidine - hydrazone ligand]]></article-title>
<source><![CDATA[RSC Adv]]></source>
<year>2014</year>
<volume>4</volume>
<page-range>14550-6</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruben]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[J-M]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Addressing metal centres in supramolecular assemblies]]></article-title>
<source><![CDATA[Chem Soc Rev]]></source>
<year>2006</year>
<volume>35</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1056-67</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruben]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rojo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Romero-Salguero]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Uppadine]]></surname>
<given-names><![CDATA[LH]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Grid-type metal ion architectures functional metallosupramolecular arrays]]></article-title>
<source><![CDATA[Angew Chem Int Ed Engl]]></source>
<year>2004</year>
<volume>43</volume>
<numero>28</numero>
<issue>28</issue>
<page-range>3644-62</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uppadine]]></surname>
<given-names><![CDATA[LH]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Three-level synthetic strategy towards mixed-valence and heterometallic [2 x 2] gridlike arrays]]></article-title>
<source><![CDATA[Angew Chem Int Ed Engl]]></source>
<year>2004</year>
<volume>43</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>240-3</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutchinson]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hanton]]></surname>
<given-names><![CDATA[LR]]></given-names>
</name>
<name>
<surname><![CDATA[Moratti]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Control of self-assembly through the influence of terminal hydroxymethyl groups on the metal coordination of pyrimidine-hydrazone Cu(II) complexes]]></article-title>
<source><![CDATA[Inorg Chem]]></source>
<year>2010</year>
<volume>49</volume>
<numero>13</numero>
<issue>13</issue>
<page-range>5923-34</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutchinson]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hanton]]></surname>
<given-names><![CDATA[LR]]></given-names>
</name>
<name>
<surname><![CDATA[Moratti]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metal ion-controlled self-assembly using pyrimidine hydrazone molecular strands with terminal hydroxymethyl groups a comparison of Pb(II) and Zn(II) complexes]]></article-title>
<source><![CDATA[Inorg Chem]]></source>
<year>2011</year>
<volume>50</volume>
<numero>16</numero>
<issue>16</issue>
<page-range>7637-49</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutchinson]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Hanton]]></surname>
<given-names><![CDATA[LR]]></given-names>
</name>
<name>
<surname><![CDATA[Moratti]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of Terminal Acryloyl Arms on the Coordination Chemistry of a Ditopic Pyrimidine-Hydrazone Ligand Comparison of Pb(II), Zn(II), Cu(II), and Ag(I) Complexes]]></article-title>
<source><![CDATA[Inorg Chem]]></source>
<year>2013</year>
<volume>52</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>2716-28</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nakamoto]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<source><![CDATA[Infrared and Raman Spectra of Inorganic and Coordination Compound]]></source>
<year>1986</year>
<edition>4</edition>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaye]]></surname>
<given-names><![CDATA[GWC]]></given-names>
</name>
<name>
<surname><![CDATA[Laby]]></surname>
<given-names><![CDATA[TH]]></given-names>
</name>
</person-group>
<source><![CDATA[Tables of Physical and Chemical Constants]]></source>
<year>1995</year>
<edition>16</edition>
<publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Longman]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruben]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Lehn]]></surname>
<given-names><![CDATA[J-M]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Addressing metal centres in supramolecular assemblies]]></article-title>
<source><![CDATA[Chem Soc Rev]]></source>
<year>2006</year>
<volume>35</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1056-67</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
