01771nas a2200265 4500008004100000022001400041245007500055210006900130260000900199300001400208490000700222520099600229653000801225653001601233653001401249653002001263653000901283100001901292700001701311700001501328700002001343700001701363700001901380856010601399 2020 eng d a1861-472800aAmidinato germylene-zinc complexes: synthesis, bonding, and reactivity0 aAmidinato germylenezinc complexes synthesis bonding and reactivi cOCT a3116-31210 v153 a
Despite the explosive growth of germylene compounds as ligands in transition metal complexes, there is a modicum of precedence for the germylene zinc complexes. In this work, the synthesis and characterization of new germylene zinc complexes [PhC(NtBu)(2)Ge{N(SiMe3)(2)}-> ZnX2](2)(X= Br (2) and I (3)) supported by (benz)-amidinato germylene ligands are reported. The solid-state structures of2and3have been validated by single-crystal X-ray diffraction studies, which revealed the dimeric nature of the complexes, with distorted tetrahedral geometries around the Ge and Zn center. DFT calculations reveal that the Ge-Zn bonds in2and3are dative in nature. The reaction of2with elemental sulfur resulted in the first structurally characterized germathione stabilized ZnBr(2)complexes PhC(NtBu)(2)Ge(=S){N(SiMe3)(2)}-> ZnBr2(5). Therefore, the Ge=S in5is in-between Ge-S single and Ge=S double bond length, owing to the coordination of a sulfur lone pair of electrons to ZnBr2.
10aDFT10aGermathione10aGermylene10aX-ray Structure10azinc1 aYadav, Sandeep1 aKumar, Rohit1 aRaj, Vipin1 aYadav, Prashant1 aVanka, Kumar1 aSen, Sakya, S. uhttp://library.ncl.res.in/content/amidinato-germylene-zinc-complexes-synthesis-bonding-and-reactivity