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Table 4 The calculated and experimental geometric parameters of the studied compound using DFT B3LYP/6-311G (d, p)

From: Novel enaminone derived from thieno [2,3-b] thiene: Synthesis, x-ray crystal structure, HOMO, LUMO, NBO analyses and biological activity

Parameter a

Calc.

Exp

Parameter

Calc.

Exp

Parameter

Calc.

Exp

R (1–7)

1.769

1.750

A (3-35-36)

122.9

124.1

A (14-16-17)

119.7

119.8

R (1–12)

1.721

1.707

A (4-48-11)

117.1

116.3

A (14-16-18)

120.1

120.3

R (2–11)

1.769

1.749

A (4-48-49)

122.9

124.2

A (17-16-18)

120.1

119.9

R (2–12)

1.721

1.714

A (38-5-40)

120.5

121.9

A (16-18-19)

120.2

119.9

R (3–35)

1.235

1.245

A (38-5-44)

120.7

121.0

A (16-18-20)

119.6

120.2

R (4–48)

1.235

1.241

A (5-38-36)

127.8

126.7

A (19-18-20)

120.2

119.9

R (5–38)

1.352

1.333

A (5-38-39)

115.2

116.6

A (18-20-21)

120.1

119.9

R (5–40)

1.455

1.450

A (40-5-44)

117.2

117.0

A (18-20-22)

120.2

120.3

R (5–44)

1.454

1.454

A (5-40-41)

109.5

109.5

A (21-20-22)

119.7

119.9

R (6–51)

1.352

1.323

A (5-40-42)

111.8

109.4

A (20-22-23)

120.0

119.9

R (6–53)

1.455

1.449

A (5-40-43)

110.3

109.4

A (25-24-33)

118.8

118.4

R (6–57)

1.454

1.454

A (5-44-45)

110.2

109.5

A (24-25-26)

119.4

119.7

R (7–8)

1.381

1.378

A (5-44-46)

109.2

109.5

A (24-25-27)

120.6

120.6

R (7–35)

1.491

1.485

A (5-44-47)

111.9

109.4

A (24-33-31)

120.7

120.6

R (8–9)

1.445

1.437

A (51-6-53)

120.5

121.7

A (24-33-34)

119.2

119.7

R (8–13)

1.489

1.482

A (51-6-57)

120.7

120.8

A (26-25-27)

120.0

119.7

R (9–10)

1.445

1.440

A (6-51-49)

127.8

126.4

A (25-27-28)

119.7

119.8

R (9–12)

1.395

1.380

A (6-51-52)

115.2

116.7

A (25-27-29)

120.2

120.3

R (10–11)

1.381

1.380

A (53-6-57)

117.2

117.5

A (28-27-29)

120.1

119.9

R (10–24)

1.489

1.485

A (6-53-54)

109.5

109.5

A (27-29-30)

120.2

120.0

R (11–48)

1.491

1.494

A (6-53-55)

111.8

109.5

A (27-29-31)

119.6

120.0

R (13–14)

1.400

1.382

A (6-53-56)

110.3

109.5

A (30-29-31)

120.2

120.0

R (13–22)

1.400

1.384

A (6-57-58)

111.9

109.5

A (29-31-32)

120.1

120.0

R (14–16)

1.393

1.382

A (6-57-59)

110.2

109.4

A (29-31-33)

120.1

120.2

R (16–18)

1.394

1.365

A (6-57-60)

109.2

109.5

A (32-31-33)

119.7

119.9

R (18–20)

1.394

1.367

A (8-7-35)

134.9

133.0

A (31-33-34)

120.2

119.7

R (20–22)

1.392

1.379

A (7-8-9)

111.7

111.1

A (35-36-37)

119.7

119.1

R (24–25)

1.400

1.376

A (7-8-13)

124.1

125.8

A (35-36-38)

118.2

121.8

R (24–33)

1.400

1.390

A (7-35-36)

120.0

119.5

A (37-36-38)

122.1

119.1

R (25–27)

1.392

1.381

A (9-8-13)

124.1

123.1

A (36-38-39)

117.0

116.7

R (27–29)

1.394

1.370

A (8-9-10)

137.0

135.1

A (41-40-42)

108.3

109.6

R (29–31)

1.394

1.360

A (8-9-12)

111.5

112.3

A (41-40-43)

108.5

109.5

R (31–33)

1.393

1.380

A (8-13-14)

120.2

119.8

A (42-40-43)

108.3

109.4

R (35–36)

1.456

1.424

A (8-13-22)

121.0

121.0

A (45-44-46)

108.5

109.5

R (36–38)

1.362

1.354

A (10-9-12)

111.5

112.6

A (45-44-47)

108.4

109.5

R (48–49)

1.456

1.412

A (9-10-11)

111.7

110.8

A (46-44-47)

108.7

109.5

R (49–51)

1.362

1.363

A (9-10-24)

124.1

122.5

A (48-49-50)

119.7

118.8

A (7-1-12)

90.0

90.6

A (11-10-24)

124.1

126.7

A (48-49-51)

118.2

122.4

A (1-7-8)

112.8

112.7

A (10-11-48)

134.9

133.2

A (50-49-51)

122.1

118.8

A (1-7-35)

112.3

114.2

A (10-24-25)

121.0

121.1

A (49-51-52)

117.0

116.8

A (1-12-2)

132.1

133.6

A (10-24-33)

120.2

120.5

A (54-53-55)

108.3

109.4

A (1-12-9)

113.9

113.3

A (14-13-22)

118.8

119.1

A (54-53-56)

108.5

109.4

A (11-2-12)

90.0

90.5

A (13-14-15)

119.2

120.0

A (55-53-56)

108.3

109.4

A (2-11-10)

112.8

113.0

A (13-14-16)

120.7

120.0

A (58-57-59)

108.4

109.5

A (2-11-48)

112.3

113.8

A (13-22-20)

120.6

120.1

A (58-57-60)

108.7

109.5

A (2-12-9)

113.9

113.1

A (13-22-23)

119.4

120.0

A (59-57-60)

108.5

109.5

A (3-35-7)

117.1

116.4

A (15-14-16)

120.2

120.0

   
  1. aThe calculated dihedral angles given in Additional file 1: Table S1.