Low-Lying Triplet States of Diphosphene and Diphosphinylidene Lu, Tongxiang ; Hao, Qiang ; Simmonett, Andrew C. ; Evangelista, Francesco A. ; Yamaguchi, Yukio ; Fang, De-Cai ; Schaefer, Henry F., III Abstract Publication: Journal of Physical Chemistry A Pub Date: October 2010 DOI: 10.1021/jp105281w Bibcode: 2010JPCA..11410850L