“…In addition, metal-phenanthroline complexes and their derivatives have attracted much attention during recent decades because of their peculiar features (Wang et al, 1996;Wall et al, 1999;Naing et al, 1995). A number of Mn (II) complexes have been synthesized and structures determined (Shen & Yuan, 2004;Pan & Xu, 2005;Su et al, 2005;Pan et al, 2006;Shen et al, 2007;Xuan et al, 2007;Zhao et al, 2007). The title complex, (I), was recently obtained from the reaction of manganese nitrate, sodium 2-hydroxybenzoate and dmphen in an ethanol/water mixture, and its crystal structure is reported here.…”