Transition-metal cyanometallates

The coordination chemistry of transition metal cyanometallates has been of great and long standing concern because of the fundamental issues related to their electronic structure and reactivity It has been... 

Diphenyliodonium salts of transition metal cyanometallates, for example, Ru"(CN)r, Molv(CN)f , Wlv(CN)f, and Fe"(CN) -, exhibit broad absorptions in the visible assigned to outer sphere ion pair charge transfer (1PCT) interactions (107). Irradiation into these IPCT bands leads to efficient long wavelength photolysis of the onium cation coupled with oxidation of the cyanometallate anion. 

The porous character of the cyanometallates structure is linked to the coordination taken up by the metal (M) in the hexacyanometallate anion, M(CN)f, ", that shapes the salt of the cyanomet-allate anion [238], For example, hexacyanometallates can be considered as a three-dimensional framework of a molecular block, the hexacyanometallate anion, [M(CN)6]", through a transition metal cation Tm+, which connects the N ends of the adjacent blocks [239],... 

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