Synthetic Access to a Hydrocarbon-Soluble Trifluorinated Ge(II) Compound and its Sn(II) Congener. - Samuel, Prinson P.; Yan Li; Roesky, Herbert W.; Chevelkov, Veniamin; Lange, Adam; Burkhardt, Anja; Dittrich, Birger (Journal of the American Chemical Society, 2014)