A Theoretical Comparison on Vertical Excited States of Free-Base Porphin
Ren Yan-Liang;Wan Jian;Liu Jun-Jun;Wan Hong-Wen
Acta Phys. -Chim. Sin. . 2004, (09): 1089 -1092 .  DOI: 10.3866/PKU.WHXB20040906