%0 Journal Article
%A Izzet, G.
%A Ishow, E.
%A Delaire, J.
%A Afonso, C.
%A Tabet, J.-C.
%A Proust, A.
%D 2009
%T Photochemical Activation of an Azido Manganese-Monosubstituted Keggin Polyoxometalate: On the Road to a Mn(V)−Nitrido Derivative
%U https://acs.figshare.com/articles/journal_contribution/Photochemical_Activation_of_an_Azido_Manganese_Monosubstituted_Keggin_Polyoxometalate_On_the_Road_to_a_Mn_V_Nitrido_Derivative/2805190
%R 10.1021/ic902046t.s001
%2 https://ndownloader.figshare.com/files/4499695
%K photolysi
%K manganese
%K 31 P NMR
%K PW 11O
%K IR
%K Mn
%K 2O
%K UV
%X The manganese(V)−nitrido polyoxometalate derivative [PW11O39{MnVN}]5− has been synthesized by photochemical activation of the parent manganese(III)−azido derivative [PW11O39MnIIIN3]5−. It was characterized by mass spectrometry, 31P NMR, UV−vis, and IR spectroscopies. An electrochemistry study indicated that only the Mn(V) state was stable. The photoactivation of the manganese(III)−azido derivative proceeds through two competitive routes, yielding to the targeted product of photooxidation {MnVN} or the undesirable product of photoreduction {MnIIL} (L = H2O, N3), depending on the photolysis conditions. A simplified photolysis mechanism involving two different excited states was proposed to account for the temperature and wavelength dependence.
%I ACS Publications