title: Selective insertion of oxygen and selenium into an electron-precise paramagnetic selenium-manganese carbonyl cluster [Se(6)Mn(6)(CO)(18)](4-).
abstract: The facile synthesis of a novel electron-precise paramagnetic hexamanganese carbonyl selenide cluster [Se(6)Mn(6)(CO)(18)](4-) (1) was discovered, which demonstrates contrasting reactivity toward O(2) and Se(8) under markedly mild conditions to afford the O- and Se-inserted clusters [Se(6)Mn(6)(CO)(18)(O)](4-) (2) and [Se(10)Mn(6)(CO)(18)](4-) (3), respectively. Clusters 1-3 represent the first examples of electron-precise paramagnetic main-group transition metal carbonyl clusters, and their formation and bonding properties are further elucidated by theoretical calculations.
authors.affiliation: Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan, Republic of China. mshieh@ntnu.edu.tw
authors.forename: Minghuey
authors.initials: M
authors.lastname: Shieh
authors.forename: Chia-Hua
authors.initials: CH
authors.lastname: Ho
authors.forename: Wen-Shyan
authors.initials: WS
authors.lastname: Sheu
authors.forename: Horng-Wen
authors.initials: HW
authors.lastname: Chen
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D004583:Electrons; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D010100:Oxygen / Q000737:chemistry*; D012643:Selenium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D008345:Manganese; D012643:Selenium; D010100:Oxygen