A Facile Route to Phosphanylborohydrides:Synthesis, Crystal Structure and Spectroscopic Properties of 1,2-Bis(Diphenylphosphinoborane)Ethane — Oak Academic Publishing
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A Facile Route to Phosphanylborohydrides:Synthesis, Crystal Structure and Spectroscopic Properties of 1,2-Bis(Diphenylphosphinoborane)Ethane
A novel and simple synthetic way using NaBH<sub>4</sub> in the mixure of H<sub>2</sub>O-THF was applied to prepare 1,2-bis(diphenylphosphinoborane)ethane, dppe(BH<sub>3</sub>)<sub>2</sub>, in high yield and purity. The phosphanylborohydride compound dppe(BH<sub>3</sub>)<sub>2</sub> was isolated in the form of colorless crystals and characterized by single crystal X-ray diffraction, <sup>1</sup>H, <sup>13</sup>C, <sup>31</sup>P and <sup>11</sup>B NMR spectroscopy. Prismatic colorless crystals of dppe(BH3)2 were obtained in monoclinic crystal system and space group P21 with two asymmetric units in the unit cell. Lattice parameters were: a = 11.657(2), b = 17.237(2), c = 12.764(2) Å, β = 98.735(14)°, 2535.0(7) Å<sup>3</sup>
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