A Series of New Organotin−Cyanometalate Compounds Based on Triorganotin, Diorganotin, and Organooxotin Clusters

The reactions of sodium nitroprusside [Na2Fe(CN)5NO·2H2O] with organotin have been studied. Six
new organotin−cyanometalate compounds, [Ph3Sn]2[Fe(CN)5NO] (1), [Bz3Sn]2[Fe(CN)5NO] (BzC6H5CH2−) (2), [Bz2Sn][Fe(CN)5NO] (3), [(Bz3Sn)2CN]2[Fe(CN)5NO] (4), [Bz2SnOSn(MeO)Bz2]2[Fe(CN)5NO]·3CH2Cl2 (5), and [Bz2SnOSn(EtO)Bz2]2[Fe(CN)5NO]·3CH2Cl2 (6), have been isolated in these
reactions and characterized by the X-ray diffraction method. Each of compounds 1, 2, 3, and 4 shows a
2D polymeric structure containing planar four-connected [Fe(CN)5NO]2- anions. Compound 4 is the
first organotin−cyanometalate compound containing a superlong −CN−R3Sn−CN−SnR3−NC− spacer.
Compounds 5 and 6 are the first examples of organotin−cyanometalate compounds of organooxotin
clusters, in which the organooxotin clusters are bridged by cyanometalate anions to generate a novel 1D
polymeric chain structure.