02060nas a2200265   4500008004100000022001400041245010900055210006900164260000900233300001400242490000700256520119300263653001701456653001601473653001801489653002501507653001501532100001801547700002301565700001701588700001501605700002001620700002201640856013201662       2021                        eng d  a1861-472800aIntramolecularly double-donor-stabilized stannylene and its coordination towards Ag(I) and Au(I) centers0 aIntramolecularly doubledonorstabilized stannylene and its coordi  cAUG   a2118-21250 v163 aThe intramolecularly double-donor-stabilized stannylene 1 has been synthesized from the salt-metathesis reaction between two equivalents of lithium pyridine ene-amide L1 and SnCl2. Compound 1 exhibits dipolar behavior when reacted with B(C6F5)(3) leading to the zwitterionic compound 2. The reaction of 1 with one equivalent and 0.5 equivalent of AgOTf (OTf=trifluoromethane sulfonate) result in the formation of a stannylene-AgOTf complex 3 and a homoleptic distannylene-silver ionic complex 4, respectively. Analogous to complex 4, the gold(I) complex 5 has been synthesized from the reaction between two equivalents of 1 and 0.5 equivalent of AuCl.SMe2/Me3SiOTf. Complex 5 is the first example of homoleptic stannylene-Au(I) ionic complex among the very scarce reports on stannylene-gold(I) coordination complexes. All compounds have been structurally characterized using single crystal X-ray crystallography. Solution-state characterization have been performed using multinuclear NMR techniques. Detailed DFT calculations on the optimized geometries 1 o, 3 o-5 o reveal the change in sp- hybridization on the pyramidal Sn(II) center upon metal coordination and their bonding overlaps.10acoordination10agold cation10ahybridization10aintramolecular donor10astannylene1 aChibde, Purva1 aRaut, Ravindra, K.1 aKumar, Vikas1 aDeb, Rahul1 aGonnade, Rajesh1 aMajumdar, Moumita  uhttps://library.ncl.res.in/content/intramolecularly-double-donor-stabilized-stannylene-and-its-coordination-towards-agi-and-aui