Coordination Behavior of 3-Ethoxycarbonyltetronic Acid towards Cu(II) and Co(II) Metal Ions

<table>X-band spectrum of compound <svg height="10.875" id="M172" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 7.9375 10.875" width="7.9375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.875)">
<g transform="translate(72,-63.3)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝟒</tspan>
</text>
</g>
</g>
</svg>. 
EPR conditions: microwave frequency 9.407 GHz, temperature 4.2 K, mod. 
ampl. 8 Gpp, microwave power 0.6 mW, sweep time 200 seconds, t.c.: 300 milliseconds.  The arrows indicate regions of <i>g</i>
anisotropy.</table>

Bioinorganic Chemistry and Applications

fig2

Figure 2

Figure 2: Coordination Behavior of 3-Ethoxycarbonyltetronic Acid towards Cu(II) and Co(II) Metal Ions 