41. This favorable ?-interaction offsets the steric repulsion between the phenyl and the methyl ester groups. 42. While phenyl chlorosilanes and many others can be used, methylsiloxanes are produced in the greatest quantities. 43. It is often used as a synthetic equivalent for the phenyl " Ph " " synthon. 44. PPEs of up to 6 phenyl rings, both oxy and thio ethers, are commercially available. 45. Align the phenyl plane with the x-axis to get the ( raw ) top view. 46. This position is actually necessary and can only be formed by certain compounds like allyl phenyl ether. 47. Diborinic acids have two RBOH groups linked together by an organic connection such as diphenyl or phenyl . 48. A more centrally located alkyne, which is a less lipophilic connector than phenyl , improves potency. 49. The plane of the phenyl groups are perpendicular to the plane of this Li 2 C 2 ring. 50. Phenyl groups are at the faces of the tetrahedron and bind to three of the nearest Li atoms.
