3d image of biphenylene skeletal formula

biphenylene polycyclic aromatic hydrocarbon diphenylene yellowish antiaromaticity aromaticity x-ray diffraction electron delocalization nmr magnetic susceptibility diamagnetic exaltation anisotropy substance matter material compound component agent stuff reagent functional group precursor synthesis reaction production building block molecule molecular formula skeletal structural structure geometry ball stick atom chemistry chemical science scientific research organic isolated white background model 3d