In there compounds, the cyclopentadiene ring has only four hydrogens.在这些化合物里, 环戊二烯环只有4个氢.Those that are aligned perpendicular to the plane are called axial hydrogens.与平面垂直定向的氢叫做直立氢.A methane molecule is composed of one c...
A methane molecule is composed of one carbon atom attached to four hydrogens.甲烷分子由1个碳原子与4个氢原子构成。Those that are aligned in the place are called equatorial hydrogens.那些在平面上定向的氢叫做平伏氢.Those that are aligned perpendicular to ...