- The dianion of tetraphenylgermole is aromatic
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Not one, but two structurally distinct forms are obtained depending upon the crystallization temperature when Li2(Ph(C]4Ge) crystallizes from dioxane. In one form (left) the two lithium ions are located on opposite sides of the germole rings each η5 coordinated to all of the ring of atoms. In the other form (right), one lithium ion is η5 coordinated to the ring atoms and the other is η5 coordinated to the germanium center. The C C distances within the ring of the germole dianion are nearly equal, indicating that the binding is highly delocalized.
- West,Sohn,Powell,Muller,Apeloig
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p. 1002 - 1004
(2008/10/09)
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- Electronic absorption spectra of diorganogermylenes in matrices: Formation of diorganogermylene complexes with heteroatom-containing substrates
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Diorganogermylenes were generated in hydrocarbon matrices at 77 K by the photolysis of 7-germanorbornadienes 1a-e or bis(trimethylsilyl)germanes 2a-g. The germylenes show electronic absorption bands at 420-558 nm. The germylenes react with heteroatom-containing substrates (R2O, R2S, R3P, R3N, RCl, and ROH) to form adducts, which show characteristic absorption bands at shorter wavelengths than those of germylenes.
- Ando, Wataru,Itoh, Hiroyuki,Tsumuraya, Takeshi
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p. 2759 - 2766
(2008/10/08)
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