Poly(germanium thiolate): a new class of organometallic polymers having a germanium-sulfur bond in the main chain
✍ Scribed by Shin-Ichiro Shoda; Satoru Iwata; Hyun Joon Kim; Masafumi Hiraishi; Shiro Kobayashi
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 383 KB
- Volume
- 197
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
A novel germanium‐containing copolymer 3 a having a germanium(IV) unit and a trimethylene sulfide unit alternatingly in the main chain was prepared by the combined use of a germylene, 1,3‐bis(trimethylsilyl)‐1,3‐diaza‐2‐germa(II)‐indan (1 a) and thietane (2). The resulting copolymer has a very high molecular weight (M̄~w~ > 10^6^). The usage of a germylene, bis[bis(trimethylsilyl)aminato]germanium(II) (1 b), as a comonomer also gave an alternating copolymer 3 b with high molecular weight in good yields. On the other hand, the reaction of a germylene, bis(N‐trimethylsilyl‐tert‐butylaminato)germanium(II) (c), with thietane afforded a 1 : 1 adduct 4c having a 1‐thia‐2‐germacyclopentane structure without producing an alternating copolymer.