Synthesis,Structures, and Properties of Branched Oligogermanes |
| |
| Authors: | Christian R Samanamu Monika L Amadoruge Charles S Weinert James A Golen Arnold L Rheingold |
| |
| Institution: | 1. Department of Chemistry , Oklahoma State University , Stillwater , Oklahoma , USA;2. Department of Chemistry and Biochemistry , University of Massachusetts–Dartmouth, North Dartmouth , Massachusetts , USA;3. Department of Chemistry and Biochemistry , University of California–San Diego , La Jolla , California , USA |
| |
| Abstract: | Abstract We have employed the hydrogermolysis reaction for the preparation of rare branched oligogermanes, and have obtained for the first time the X-ray crystal structures of several branched tetragermanes, including (Ph3Ge)3GePh, (Ph3Ge)3GeH, and (Ph3Ge)3GeX (X = Cl or Br). We also have at our disposal branched tetragermanes having the formula (EtOCH2CH2Bu n 2Ge)3GePh, where the ethoxyethyl substituent serves as a protecting group for a germanium–hydride active site. These reagents have been employed for the stepwise synthesis of higher branched systems having up to 13 bonded germanium atoms in the oligomer backbone. The synthesis, structures, and physical characteristics of these systems are described. GRAPHICAL ABSTRACT |
| |
| Keywords: | Germanium NMR spectroscopy oligogermanes X-ray crystallography |
|
|
