摘要:
A series of adducts SB9H11.L (L = Py, 4-Pic, 4,4'-Dipy, SB9H11.4,4'-Dipy) were synthesized and studied by IR, B-11 NMR, and x-ray photoelectron spectroscopy. Substitution of the HB.L fragment by a sulfur atom in the B10H12.L2 adducts leads to a decrease in the electron density at the boron atoms on account of its attraction to the sulfur atom. According to the XPS data, the charge state of the sulfur in the investigated SB9H11.L compounds is similar to the state in dialkyl sulfides.