Bond length Value(Å) Angle Value(/°) Dihedral angles Value(/°)
C1-C2 1.407 C1-C2-C3 117.0 C1-C2-C3-C4 1.37
C2-C3 1.387 C2-C3-C4 123.2 C2-C3-C4-C5 -0.42
C3-C4 1.407 C3-C4-C5 119.1 C3-C4-C5-C6 -1.14
C4-C5 1.409 C4-C5-C6 118.1 C6-C1-C2-C7 179.33
C5-C6 1.399 C1-C2-C7 120.6 C3-C2-C7-H8 -0.66
C2-C7 1.506 C2-C7-H8 110.6 C3-C2-C7-H9 120.02
C7-H8 1.091 C2-C7-H9 111.2 C3-C2-C7-H10 -121.56
C7-H9 1.094 C2-C7H10 111.3 C1-C2-C3-H11 179.73
C7-H10 1.094 C2-C3-H11 118.0 C2-C3-C4-C12 175.6
C3-H11 1.084 C3-C4-C12 119.5 C3-C4-C12-O13 -142.36
C4-C12 1.494 C4-C12-O13 121.2 C3-C4-C5-C14 179.41
C12-O13 1.223 C4-C5-C14 123.4 C4-C5-C14-H15 42.79
C5-C14 1.511 C5-C14-H15 112.1 C2-C5-C14-H16 -75.76
C14-H15 1.091 C5-C14-H16 110.9 C4- C5-C14-H17 163.87
C14-H16 1.092 C5-C14-H17 110.3 C4-C5-C6-H18 -178.64
C14-H17 1.092 C5-C6-H18 118.1 C3-C4-C12-C19 37.37
C6-H18 1.082 C4-C12-C19 119.6 C4-C12-C19-C20 32.08
C12-C19 1.505 C12-C19-C20 122.6 C12-C19-C20-C21 176.14
C19-C20 1.401 C19-C20-C21 120.4 C19-C20-C21-C22 0.9
C20-C21 1.394 C20-C21-C22 120.1 C20-C21-C22-C23 -0.89
C21-C22 1.394 C21-C22-C23 119.9 C4-C12-C19-C24 -151.92
C22-C23 1.396 C12-C19-C24 118.2 C12-C19-C20-H25 -2.63
C19-C24 1.402 C19-C20-H25 119.9 C19-C20-C21-H26 -179.03
C20-H25 1.083 C20-C21-H26 119.8 C20- C21-C22-H27 179.4
C21-H26 1.084 C21-C22-H27 120.0 C21-C22-C23-H28 -179.81
C22-H27 1.084 C22-C23-H28 120.0 C22-C23-C24-H29 -178.49
C23-H28 1.084 C23-C24-H29 120.9 C3-C2-C1-O30 179.15
C24-H29 1.083 C2-C1-O30 115.1 C2-C1-C30-C31 179.02
C1-O30 1.366 C1-C30-C31 119.1 C1-C30-C31-H32 60.08
C30-C31 1.408 C30-C31-H32 111.7 C1-C30-C31-H33 -60.77
C31-H32 1.097 C30-C31-H33 111.7 C1-C30-C31-C34 179.4
C31-H33 1.096 C30-C31-C34 108.7 C30-C31-C34-O35 -3.75
C31-C34 1.522 C31-C34-O35 126.4 C30-C31-C34-O36 176.59
C34-O35 1.2 C31-C34-O36 108.6 C31-C34-C36-C37 179.3
C34-O36 1.347 C34-C36-C37 116.6 C34-C36-C37-H38 -60.27
C36-C37 1.453 C36-C37-H38 108.4 C34-C36-C37-H39 56.65
C37-H38 1.092 C36-C37-H39 108.4 C34-C36-C37-C40 178.22
C37-H39 1.092 C36-C37-C40 107.6 C36-C37-C40-H41 179.88
C37-C40 1.514 C37-C40-H41 109.5 C36-C37-C40-H42 -60.6
C40-H41 1.093 C37-C40-H42 111.1 C36-C37-C40-H43 60.32
C40-H42 1.092 C37-C40-H43 111.1    
C40-H43 1.092        
Table 1: Optimized parameters of EBDA on B3LYP/6-31++G(d,p) level.