Probing Donor–Acceptor Interactions in peri-Substituted Diphenylphosphinoacenaphthyl–Element Dichlorides of Group 13 and 15 Elements

Transmetalation reactions of ArLi with ECl3 (E = Al, P, In, Bi) and ArSnBu3 with ECl3 (E = B, Ga, Tl, As, Sb) gave rise to the formation of peri-substituted diphenylphosphinoacenaphthyl–element dichlorides ArECl2 (Ar = 6-Ph2P-Ace-5-), which were characterized by multinuclear NMR spectroscopy and X-ray crystallography. DFT calculations were performed on the compounds at relaxed gas-phase molecular geometries. For the series ArECl2 containing...