PDB Chemical Component FR4

The following tables include covalent bond distance, bond angle and torsion angle values for the experimental model and ideal geometries stored in the definition for this chemical component.

Bond Distances for FR4

Atom I Atom J Distance (Experimental Model) Distance (Ideal Model)
C1 N2 1.438 1.354
C1 C5 1.350 1.364
C1 H1 1.103 1.080
N2 C3 1.330 1.358
N2 C13 1.470 1.464
C3 N4 1.317 1.302
C3 H3 1.103 1.080
N4 C5 1.397 1.358
C5 C8 1.481 1.473
C8 O9 1.197 1.216
C8 N10 1.318 1.348
N10 H101 1.020 0.970
N10 H102 1.020 0.970
C13 C14 1.615 1.530
C13 C18 1.512 1.530
C13 H13 1.115 1.090
C14 O15 1.499 1.429
C14 H141 1.115 1.090
C14 H142 1.115 1.090
O15 H15 0.950 0.967
C18 C19 1.518 1.529
C18 H181 1.115 1.089
C18 H182 1.115 1.089
C19 N22 1.466 1.466
C19 H191 1.116 1.090
C19 H192 1.115 1.090
N22 C27 1.355 1.370
N22 C30 1.350 1.376
C27 C28 1.408 1.341
C27 H27 1.104 1.080
C28 C29 1.434 1.465
C28 H28 1.103 1.080
C29 C30 1.443 1.407
C29 C31 1.357 1.396
C30 C34 1.369 1.390
C31 C32 1.394 1.366
C31 H31 1.103 1.080
C32 C33 1.418 1.393
C32 H32 1.103 1.080
C33 C34 1.375 1.384
C33 N1 1.331 1.400
C34 H34 1.103 1.080
N1 C2 1.362 1.348
N1 HN1 1.020 0.969
C2 O1 1.219 1.213
C2 C4 1.491 1.506
C4 C6 1.499 1.531
C4 H41 1.115 1.090
C4 H42 1.115 1.089
C6 C11 1.531 1.507
C6 H61 1.115 1.089
C6 H62 1.115 1.089
C7 C11 1.437 1.382
C7 C15 1.392 1.383
C7 H7 1.103 1.079
C11 C9 1.391 1.381
C9 C12 1.402 1.382
C9 H9 1.103 1.081
C12 C10 1.430 1.382
C12 H12 1.103 1.080
C10 C15 1.373 1.381
C10 H10 1.103 1.080
C15 H2 1.103 1.081

Bond Angles for FR4

Atom I Atom J Atom K Angle (Experimental Model) Angle (Ideal Model)
N2 C1 C5 106.9 106.9
N2 C1 H1 129.0 126.6
C1 N2 C3 104.2 107.7
C1 N2 C13 129.8 126.1
C5 C1 H1 124.1 126.5
C1 C5 N4 108.8 107.5
C1 C5 C8 131.3 126.3
C3 N2 C13 125.8 126.1
N2 C3 N4 114.3 109.0
N2 C3 H3 123.3 125.5
N2 C13 C14 114.4 109.5
N2 C13 C18 110.7 109.4
N2 C13 H13 105.7 109.5
N4 C3 H3 122.4 125.5
C3 N4 C5 105.3 108.9
N4 C5 C8 119.8 126.2
C5 C8 O9 119.8 120.0
C5 C8 N10 121.1 120.0
O9 C8 N10 119.1 120.0
C8 N10 H101 121.1 120.0
C8 N10 H102 119.1 120.0
H101 N10 H102 119.8 120.0
C14 C13 C18 111.3 109.5
C14 C13 H13 105.1 109.5
C13 C14 O15 115.6 109.5
C13 C14 H141 110.0 109.5
C13 C14 H142 110.0 109.5
C18 C13 H13 109.2 109.5
C13 C18 C19 110.9 109.4
C13 C18 H181 111.7 109.4
C13 C18 H182 111.7 109.4
O15 C14 H141 110.0 109.5
O15 C14 H142 110.0 109.5
C14 O15 H15 115.7 106.8
H141 C14 H142 100.2 109.5
C19 C18 H181 111.7 109.5
C19 C18 H182 111.7 109.5
C18 C19 N22 107.6 109.4
C18 C19 H191 112.9 109.5
C18 C19 H192 112.9 109.5
H181 C18 H182 98.7 109.6
N22 C19 H191 112.9 109.4
N22 C19 H192 112.9 109.4
C19 N22 C27 125.2 125.0
C19 N22 C30 125.0 125.1
H191 C19 H192 97.5 109.5
C27 N22 C30 109.3 109.9
N22 C27 C28 112.1 109.9
N22 C27 H27 122.3 125.0
N22 C30 C29 107.0 107.1
N22 C30 C34 131.4 133.4
C28 C27 H27 125.6 125.0
C27 C28 C29 102.9 107.0
C27 C28 H28 127.9 126.5
C29 C28 H28 129.2 126.5
C28 C29 C30 108.4 106.0
C28 C29 C31 130.2 133.9
C30 C29 C31 121.1 120.0
C29 C30 C34 121.5 119.4
C29 C31 C32 116.9 119.8
C29 C31 H31 120.3 120.1
C30 C34 C33 117.3 119.7
C30 C34 H34 121.1 120.1
C32 C31 H31 122.8 120.1
C31 C32 C33 121.8 120.5
C31 C32 H32 118.2 119.8
C33 C32 H32 120.0 119.7
C32 C33 C34 120.8 120.5
C32 C33 N1 123.6 119.8
C34 C33 N1 115.5 119.7
C33 C34 H34 121.5 120.1
C33 N1 C2 128.7 120.0
C33 N1 HN1 114.3 120.0
C2 N1 HN1 117.0 120.0
N1 C2 O1 125.2 120.0
N1 C2 C4 111.7 120.0
O1 C2 C4 123.1 120.0
C2 C4 C6 113.1 109.5
C2 C4 H41 110.9 109.5
C2 C4 H42 110.9 109.5
C6 C4 H41 110.9 109.4
C6 C4 H42 110.8 109.5
C4 C6 C11 109.7 109.4
C4 C6 H61 112.1 109.4
C4 C6 H62 112.1 109.5
H41 C4 H42 99.4 109.5
C11 C6 H61 112.1 109.5
C11 C6 H62 112.1 109.5
C6 C11 C7 121.6 120.0
C6 C11 C9 119.8 120.0
H61 C6 H62 98.3 109.5
C11 C7 C15 122.4 120.0
C11 C7 H7 120.4 120.0
C7 C11 C9 118.6 120.0
C15 C7 H7 117.2 120.0
C7 C15 C10 118.8 120.0
C7 C15 H2 121.3 120.0
C11 C9 C12 118.7 120.1
C11 C9 H9 120.2 120.0
C12 C9 H9 121.0 120.0
C9 C12 C10 121.7 120.0
C9 C12 H12 118.1 120.1
C10 C12 H12 120.2 120.0
C12 C10 C15 119.7 120.0
C12 C10 H10 122.2 120.0
C15 C10 H10 118.1 120.0
C10 C15 H2 119.9 120.0

Torsion Angles for FR4

Atom I Atom J Atom K Atom L Angle (Experimental Model) Angle (Ideal Model)
C5 C1 N2 H1 180.0 180.1
N2 C1 C5 N4 353.9 0.2
N2 C1 C5 C8 176.5 180.0
C3 N2 C1 C13 184.9 180.0
C1 N2 C3 N4 1.3 359.8
C1 N2 C3 H3 181.2 180.0
C1 N2 C13 C14 279.6 120.0
C1 N2 C13 C18 46.4 240.0
C1 N2 C13 H13 164.5 360.0
N2 C1 C5 H1 180.0 179.9
C5 C1 N2 C3 3.1 0.0
C5 C1 N2 C13 178.2 180.1
C3 N4 C5 C1 6.8 359.6
N4 C5 C1 C8 177.4 180.3
C1 C5 C8 O9 350.2 360.0
C1 C5 C8 N10 171.0 180.0
N2 C1 H1 C5 180.0 180.1
H1 C1 N2 C3 183.1 179.9
H1 C1 N2 C13 358.2 360.0
H1 C1 C5 N4 173.9 180.3
H1 C1 C5 C8 356.5 0.0
C3 N2 C1 C5 3.1 0.0
C3 N2 C1 H1 183.1 179.9
C1 N2 C3 C13 175.3 180.0
C3 N2 C13 C14 93.7 300.0
C3 N2 C13 C18 220.5 60.0
C3 N2 C13 H13 338.6 180.1
N4 C3 N2 H3 180.0 179.8
N2 C3 N4 C5 355.1 0.4
C13 N2 C1 C5 178.2 180.1
C13 N2 C1 H1 358.2 360.0
C1 N2 C13 C3 185.9 179.9
C13 N2 C3 N4 185.9 179.7
C13 N2 C3 H3 5.9 359.9
C14 C13 N2 C18 233.2 240.0
C14 C13 N2 H13 115.1 120.0
N2 C13 C14 O15 303.9 60.0
N2 C13 C14 H141 178.6 180.0
N2 C13 C14 H142 69.1 300.0
C18 C13 N2 H13 241.9 240.0
N2 C13 C18 C19 59.4 180.0
N2 C13 C18 H181 294.2 60.0
N2 C13 C18 H182 184.7 300.0
C1 C5 N4 C3 6.8 359.6
N4 C3 N2 C13 185.9 179.7
N2 C3 N4 H3 180.0 180.2
C3 N4 C5 C8 184.6 179.9
H3 C3 N2 C13 5.9 359.9
N2 C3 H3 N4 180.0 179.7
H3 C3 N4 C5 175.1 180.2
N4 C5 C1 H1 173.9 180.3
C1 C5 N4 C8 182.2 179.7
C5 N4 C3 H3 175.1 180.2
N4 C5 C8 O9 173.0 179.7
N4 C5 C8 N10 353.9 359.7
C8 C5 C1 H1 356.5 0.0
C1 C5 C8 N4 177.2 180.3
O9 C8 C5 N10 179.2 180.0
C5 C8 N10 H101 180.0 180.0
C5 C8 N10 H102 359.2 359.7
C5 C8 O9 N10 180.8 180.0
O9 C8 N10 H101 0.8 360.0
O9 C8 N10 H102 180.0 179.7
C5 C8 N10 O9 179.2 180.0
H101 N10 C8 H102 180.8 180.3
C8 N10 H101 H102 179.2 179.7
C8 N10 H102 H101 180.8 180.3
N2 C13 C14 C18 126.5 120.0
N2 C13 C14 H13 244.5 240.0
C18 C13 C14 H13 118.1 120.0
C14 C13 C18 C19 187.9 300.0
C14 C13 C18 H181 62.6 180.0
C14 C13 C18 H182 313.2 60.0
O15 C14 C13 H141 125.3 240.0
O15 C14 C13 H142 234.7 120.0
C13 C14 O15 H15 180.0 180.0
H141 C14 C13 H142 109.5 240.0
N2 C13 C18 C14 231.5 240.0
N2 C13 C18 H13 116.0 120.0
C14 C13 C18 H13 244.5 240.0
C18 C13 C14 O15 177.4 300.0
C18 C13 C14 H141 52.1 60.0
C18 C13 C14 H142 302.6 180.0
C19 C18 C13 H181 125.2 120.0
C19 C18 C13 H182 234.7 240.0
C13 C18 C19 N22 199.7 180.0
C13 C18 C19 H191 74.4 60.0
C13 C18 C19 H192 325.0 300.0
H181 C18 C13 H182 109.5 120.0
N2 C13 H13 C14 121.4 120.0
N2 C13 H13 C18 240.8 240.0
C14 C13 H13 C18 119.5 120.0
H13 C13 C14 O15 59.3 180.0
H13 C13 C14 H141 294.0 300.0
H13 C13 C14 H142 184.6 60.0
H13 C13 C18 C19 303.4 60.0
H13 C13 C18 H181 178.2 300.0
H13 C13 C18 H182 68.7 180.0
O15 C14 C13 C18 177.4 300.0
O15 C14 C13 H13 59.3 180.0
C13 C14 O15 H141 234.7 120.0
C13 C14 O15 H142 125.3 240.0
H141 C14 O15 H142 250.5 120.0
H141 C14 C13 C18 52.1 60.0
H141 C14 C13 H13 294.0 300.0
C13 C14 H141 O15 128.5 240.0
C13 C14 H141 H142 244.2 120.0
O15 C14 H141 H142 115.8 240.0
H141 C14 O15 H15 305.3 60.0
H142 C14 C13 C18 302.6 180.0
H142 C14 C13 H13 184.6 60.0
C13 C14 H142 O15 231.5 120.0
C13 C14 H142 H141 115.8 240.0
O15 C14 H142 H141 244.2 120.0
H142 C14 O15 H15 54.7 300.0
H15 O15 C14 H141 305.3 60.0
H15 O15 C14 H142 54.7 300.0
C19 C18 C13 H13 303.4 60.0
C13 C18 C19 H181 234.7 240.1
C13 C18 C19 H182 125.2 119.9
H181 C18 C19 H182 250.5 239.9
N22 C19 C18 H191 125.3 120.0
N22 C19 C18 H192 234.7 240.0
C18 C19 N22 C27 273.6 90.0
C18 C19 N22 C30 85.5 269.7
H191 C19 C18 H192 109.5 120.1
H181 C18 C13 H13 178.2 300.0
C13 C18 H181 C19 124.8 119.9
C13 C18 H181 H182 242.4 240.0
C19 C18 H181 H182 117.6 120.1
H181 C18 C19 N22 324.9 299.9
H181 C18 C19 H191 199.7 180.0
H181 C18 C19 H192 90.2 59.9
H182 C18 C13 H13 68.7 180.0
C13 C18 H182 C19 235.2 240.1
C13 C18 H182 H181 117.6 120.0
C19 C18 H182 H181 242.4 239.9
H182 C18 C19 N22 74.4 60.1
H182 C18 C19 H191 309.2 300.1
H182 C18 C19 H192 199.7 180.0
N22 C19 C18 H181 324.9 299.9
N22 C19 C18 H182 74.4 60.1
C18 C19 N22 H191 234.7 240.0
C18 C19 N22 H192 125.3 120.0
H191 C19 N22 H192 250.5 240.1
C27 N22 C19 C30 188.1 180.3
C19 N22 C27 C28 172.8 179.9
C19 N22 C27 H27 352.8 359.9
C19 N22 C30 C29 184.8 179.9
C19 N22 C30 C34 8.3 0.7
H191 C19 C18 H181 199.7 180.0
H191 C19 C18 H182 309.2 300.1
C18 C19 H191 N22 122.3 120.0
C18 C19 H191 H192 241.1 239.9
N22 C19 H191 H192 118.8 119.9
H191 C19 N22 C27 38.8 210.1
H191 C19 N22 C30 210.7 29.7
H192 C19 C18 H181 90.2 59.9
H192 C19 C18 H182 199.7 180.0
C18 C19 H192 N22 237.7 240.0
C18 C19 H192 H191 118.8 120.1
N22 C19 H192 H191 241.2 240.1
H192 C19 N22 C27 148.3 330.0
H192 C19 N22 C30 320.2 149.7
C27 N22 C19 H191 38.8 210.1
C27 N22 C19 H192 148.3 330.0
C19 N22 C27 C30 173.0 179.7
C27 N22 C30 C29 357.8 359.6
C27 N22 C30 C34 181.3 180.4
C28 C27 N22 H27 180.0 180.0
N22 C27 C28 C29 2.4 0.0
N22 C27 C28 H28 182.4 179.9
C30 N22 C19 H191 210.7 29.7
C30 N22 C19 H192 320.2 149.7
C19 N22 C30 C27 187.0 180.3
C30 N22 C27 C28 359.8 0.2
C30 N22 C27 H27 179.8 180.2
C28 C29 C30 N22 3.7 0.4
N22 C30 C29 C31 178.4 180.2
C29 C30 N22 C34 176.5 179.2
N22 C30 C34 C33 181.7 179.6
N22 C30 C34 H34 1.7 359.3
C28 C27 N22 C30 359.8 0.2
N22 C27 C28 H27 180.0 180.0
C29 C28 C27 H28 180.0 180.2
C27 C28 C29 C30 356.4 359.7
C27 C28 C29 C31 182.3 180.0
H27 C27 N22 C30 179.8 180.2
N22 C27 H27 C28 180.0 180.0
H27 C27 C28 C29 182.4 180.0
H27 C27 C28 H28 2.4 359.9
N22 C30 C29 C28 3.7 0.4
C29 C28 C27 H27 182.4 180.0
C27 C28 C29 H28 180.0 179.8
C30 C29 C28 C31 174.1 179.8
C28 C29 C30 C34 180.6 179.7
C28 C29 C31 C32 177.7 180.0
C28 C29 C31 H31 357.7 359.9
H28 C28 C27 H27 2.4 359.9
C27 C28 H28 C29 180.0 180.2
H28 C28 C29 C30 176.4 179.9
H28 C28 C29 C31 2.3 0.1
N22 C30 C29 C34 183.1 180.7
C30 C29 C28 H28 176.4 179.9
C28 C29 C30 C31 185.3 180.2
C30 C29 C31 C32 4.2 0.3
C30 C29 C31 H31 184.2 180.1
C29 C30 C34 C33 5.6 0.5
C29 C30 C34 H34 185.6 180.2
C31 C29 C28 H28 2.3 0.1
C28 C29 C31 C30 173.4 179.7
C31 C29 C30 C34 355.3 359.5
C32 C31 C29 H31 180.0 180.1
C29 C31 C32 C33 354.7 359.9
C29 C31 C32 H32 174.7 180.0
N22 C30 C34 C29 176.0 179.1
C34 C30 C29 C31 355.3 359.5
C32 C33 C34 C30 353.4 359.7
C30 C34 C33 N1 176.7 179.7
C33 C34 C30 H34 180.0 180.3
C29 C31 C32 H31 180.0 179.9
C33 C32 C31 H32 180.0 180.0
C31 C32 C33 C34 6.7 0.1
C31 C32 C33 N1 183.1 180.0
C29 C31 H31 C32 180.0 180.1
H31 C31 C32 C33 174.7 180.1
H31 C31 C32 H32 354.7 0.1
C30 C34 C33 C32 353.4 359.7
C33 C32 C31 H31 174.7 180.1
C31 C32 C33 H32 180.0 180.0
C34 C33 C32 N1 183.6 180.0
C32 C33 C34 H34 173.4 180.0
C32 C33 N1 C2 345.2 33.6
C32 C33 N1 HN1 165.1 213.6
H32 C32 C31 H31 354.7 0.1
C31 C32 H32 C33 180.0 180.0
H32 C32 C33 C34 186.6 180.0
H32 C32 C33 N1 3.1 0.0
C30 C34 C33 H34 180.0 179.7
C34 C33 C32 H32 186.6 180.0
C32 C33 C34 N1 176.7 180.0
C34 C33 N1 C2 161.8 213.6
C34 C33 N1 HN1 341.8 33.6
N1 C33 C32 H32 3.1 0.0
C32 C33 N1 C34 183.4 180.0
N1 C33 C34 H34 356.7 360.0
C2 N1 C33 HN1 180.0 180.0
C33 N1 C2 O1 9.3 5.5
C33 N1 C2 C4 186.6 185.5
C30 C34 H34 C33 180.0 180.3
H34 C34 C33 N1 356.7 360.0
C33 N1 C2 HN1 180.0 180.0
O1 C2 N1 C4 182.7 180.0
N1 C2 C4 C6 174.6 180.0
N1 C2 C4 H41 49.3 60.0
N1 C2 C4 H42 299.8 300.0
C33 N1 HN1 C2 180.0 180.0
HN1 N1 C2 O1 189.3 185.5
HN1 N1 C2 C4 6.6 5.5
O1 C2 N1 HN1 189.3 185.5
N1 C2 O1 C4 177.0 180.0
O1 C2 C4 C6 352.0 360.0
O1 C2 C4 H41 226.7 240.0
O1 C2 C4 H42 117.2 120.0
C4 C2 N1 HN1 6.6 5.5
N1 C2 C4 O1 182.6 180.0
C6 C4 C2 H41 125.3 119.9
C6 C4 C2 H42 234.7 239.9
C2 C4 C6 C11 273.9 180.0
C2 C4 C6 H61 148.6 60.0
C2 C4 C6 H62 39.1 300.0
H41 C4 C2 H42 109.5 120.0
C2 C4 C6 H41 234.7 240.0
C2 C4 C6 H42 125.3 120.0
H41 C4 C6 H42 250.5 240.0
C11 C6 C4 H61 125.3 120.0
C11 C6 C4 H62 234.8 240.0
C4 C6 C11 C7 323.5 90.0
C4 C6 C11 C9 146.0 269.7
H61 C6 C4 H62 109.5 120.0
C2 C4 H41 C6 126.5 120.0
C2 C4 H41 H42 243.2 240.0
C6 C4 H41 H42 116.7 120.0
H41 C4 C6 C11 39.2 300.0
H41 C4 C6 H61 273.9 180.0
H41 C4 C6 H62 164.4 59.9
C2 C4 H42 C6 233.5 239.9
C2 C4 H42 H41 116.7 120.0
C6 C4 H42 H41 243.3 240.0
H42 C4 C6 C11 148.6 60.0
H42 C4 C6 H61 23.4 300.0
H42 C4 C6 H62 273.9 179.9
C11 C6 C4 H41 39.2 300.0
C11 C6 C4 H42 148.6 60.0
C4 C6 C11 H61 234.7 240.0
C4 C6 C11 H62 125.2 120.0
H61 C6 C11 H62 250.5 239.9
C6 C11 C7 C15 182.8 180.0
C6 C11 C7 H7 2.8 359.9
C7 C11 C6 C9 177.5 180.3
C6 C11 C9 C12 175.6 179.9
C6 C11 C9 H9 355.5 0.2
H61 C6 C4 H41 273.9 180.0
H61 C6 C4 H42 23.4 300.0
C4 C6 H61 C11 123.9 120.0
C4 C6 H61 H62 242.0 240.0
C11 C6 H61 H62 118.0 120.0
H61 C6 C11 C7 88.8 210.0
H61 C6 C11 C9 271.3 29.7
H62 C6 C4 H41 164.4 59.9
H62 C6 C4 H42 273.9 179.9
C4 C6 H62 C11 236.1 240.0
C4 C6 H62 H61 118.0 120.0
C11 C6 H62 H61 242.0 239.9
H62 C6 C11 C7 198.3 330.1
H62 C6 C11 C9 20.8 149.8
C7 C11 C6 H61 88.8 210.0
C7 C11 C6 H62 198.3 330.1
C6 C11 C7 C9 182.5 179.7
C15 C7 C11 H7 180.0 180.0
C11 C7 C15 C10 1.8 360.0
C11 C7 C15 H2 181.8 179.9
C7 C11 C9 C12 358.0 359.6
C7 C11 C9 H9 178.0 179.9
C11 C7 C15 H7 180.0 180.0
C15 C7 C11 C9 0.4 0.3
C12 C10 C15 C7 357.8 360.0
C7 C15 C10 H10 177.8 179.9
C10 C15 C7 H2 180.0 180.1
C11 C7 H7 C15 180.0 180.0
H7 C7 C11 C9 180.4 180.3
H7 C7 C15 C10 181.8 180.0
H7 C7 C15 H2 1.8 359.9
C9 C11 C6 H61 271.3 29.7
C9 C11 C6 H62 20.8 149.8
C6 C11 C9 C7 177.6 180.3
C9 C11 C7 C15 0.4 0.3
C9 C11 C7 H7 180.4 180.3
C12 C9 C11 H9 180.0 179.6
C11 C9 C12 C10 1.6 0.4
C11 C9 C12 H12 181.6 180.3
C11 C9 C12 H9 180.0 180.4
C10 C12 C9 H12 180.0 180.1
C9 C12 C10 C15 0.6 359.9
C9 C12 C10 H10 180.6 179.9
C11 C9 H9 C12 180.0 179.6
H9 C9 C12 C10 181.6 180.0
H9 C9 C12 H12 1.6 359.9
C7 C15 C10 C12 357.8 360.0
C10 C12 C9 H9 181.6 180.0
C9 C12 C10 H12 180.0 179.9
C15 C10 C12 H10 180.0 180.0
C12 C10 C15 H2 177.8 180.0
H12 C12 C9 H9 1.6 359.9
C9 C12 H12 C10 180.0 180.1
H12 C12 C10 C15 180.6 179.9
H12 C12 C10 H10 0.6 360.0
C10 C15 C7 H7 181.8 180.0
C7 C15 C10 H2 180.0 179.9
C15 C10 C12 H12 180.6 179.9
C12 C10 C15 H10 180.0 180.0
H10 C10 C12 H12 0.6 360.0
C12 C10 H10 C15 180.0 180.0
H10 C10 C15 H2 357.8 360.0
H2 C15 C7 H7 1.8 359.9
C7 C15 H2 C10 180.0 180.1
H2 C15 C10 H10 357.8 360.0