Use of 73Ge NMR Spectroscopy and X-ray Crystallography for the Study of Electronic Interactions in Substituted Tetrakis (phenyl)-,-(phenoxy)-, and-(thiophenoxy) …

…, MJ Carroll, AS DeToma, AJ Fleisher, CJ Gettel…

Index: Yoder, Claude H.; Agee, Tamara M.; Griffith, Allison K.; Schaeffer Jr., Charles D.; Carroll, Mary J.; Detoma, Alaina S.; Fleisher, Adam J.; Gettel, Cameron J.; Rheingold, Arnold L. Organometallics, 2010 , vol. 29, # 3 p. 582 - 590

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Citation Number: 12

Abstract

NMR chemical shifts of 1H, 13C, and 73Ge are reported for substituted tris-and tetrakis (phenyl) germanes (XC6H4) 3GeY and (XC6H4) 4Ge, tetrakis (phenoxy) germanes (XC6H4O) 4Ge, and thiophenoxygermanes (XC6H4S) 4Ge. The position and width of 73Ge resonances in three of the four ortho-subsituted phenoxy and thiophenoxy derivatives suggest that in these systems there is weak hypercoordination. The inability to observe the ...