Andrei Sanov, Andrew Dixon and Tian Xue, University of Arizona (image) University of Arizona Share Print E-Mail Caption Andrei Sanov, a professor in the UA Department of Chemistry and Biochemistry, and students Andrew Dixon (in red), a doctoral student, and Tian Xue, an undergraduate majoring in chemistry, have captured proof of a long sought-after four-atom compound that has eluded researchers for the last century. Credit John de Dios/UANews Usage Restrictions Image use only in conjunction with reporting or reposting of this news release. Please indicate image credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.