Synthese und Kristallstruktur des gemischt‐valenten Komplexes [Sn2I3(NPPh3)3] |
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Authors: | Soheila Chitsaz,Bernhard Neumü ller,Kurt Dehnicke |
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Abstract: | Synthesis and Crystal Structure of the Mixed Valent Complex [Sn2I3(NPPh3)3] The mixed valent phosphoraneiminato complex [Sn2I3(NPPh3)3] ( 1 ) was prepared by the reaction of the tin(II) complex [SnI(NPPh3)]2 with sodium in tetrahydrofuran. 1 crystallizes with two formula units of THF to form yellow, moisture sensitive single crystals, which were characterized by a crystal structure determination. 1 · 2 THF: Space group P21/c, Z = 4, lattice dimensions at –80 °C: a = 1964.5(2), b = 1766.0(2), c = 2058.6(2) pm; β = 118.33(1)°, R = 0.052. 1 forms dimeric molecules in which the tin atoms are linked by two nitrogen atoms of two (NPPh3–) groups to form a planar Sn2N2 four‐membered ring. The SnIV atom is additionally coordinated by a terminal iodine atom and by a terminal (NPPh3–) group, whereas the SnII atom is additionally coordinated by two iodine atoms forming a ψ trigonal‐bipyramidal surrounding. |
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Keywords: | Phosphoraneiminato complexes Tin Crystal structure |
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