<b>With</b>&nbsp; copper;&nbsp;biphenyl&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />&nbsp;mixt. of Fe complex, Cu powder and biphenyl heated at 180&deg;C for 18 h; filtered hot into n-hexane; filtered; ppt. purified by sublimation (240&deg;C, 0.07 mbar); elem. anal.;&nbsp;<br /> &nbsp;