Seven-Membered Cyclic Dialkylstannylene and -Plumbylene Compounds Stabilized by Agostic-type B−H···E Interactions [E = Sn, Pb]

Seven-Membered Cyclic Dialkylstannylene and -Plumbylene Compounds Stabilized by Agostic-type B−H···E Interactions [E = Sn, Pb]