Complexes of Halogen-Donors

MAg4ls (M = Rb, K) compounds are iodide-based solid electrolytes with high conductivities the stmctures are based on packing of I , the ion Ag  

Trigonal coordination is also found in M(dibenzo-18-crown-6)AgX3 (M = K, Rb X = Cl, Br) with Ag-X bond lengths of 2.447 A (X = Cl) and 2.550 A (X = Br) in the rubidium salts. With the larger K(crypt-2,2,2) counter-ion, it is possible to isolate individual ions as AgClJ. In 

though Au(S52CNBu2)jAgBr2 does have digonally coordinated silver (Ag-Br 2.45 A). 

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X-ray Structures and Electronic Spectra of the Jt-Halogen Complexes between Halogen Donors and Acceptors with jr-Receptors... 

Roewer G, Herzog U, Trommer K, Muller E, Friihauf S (2002) Silicon Carbide - A Survey of Synthetic Approaches, Properties and Applications 101 59-136 Rosa A, Ricciardi G, Gritsenko O, Baerends EJ (2004) Excitation Energies of Metal Complexes with Time-dependent Density Functional Theory 112 49-116 Rosokha SV, Kochi JK (2007) X-ray Structures and Electronic Spectra of the n-Halogen Complexes between Halogen Donors and Acceptors with jc-Receptors. 126 137-160 Rudolf P, see Golden MS (2004) 109 201-229... 

Alternatively, as in Scheme B, BrCN forms only an outer sphere complex, with Fe(HjO) assuming the role of an acid catalyst. In both schemes the essential feature is a polarization of the YH-BrCN system in which YH acts as a donor and BrCN as an acceptor, not unlike the situation in molecular complexes of halogens with [Pg.384]

This again demonstrates an enhanced intersystem crossing from singlet to triplet levels in donor-acceptor complexes of halogenated materials due to spin-orbit coupling. 

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