organic compounds
4,4′-Bis(acetylamino)-1,1′-ethylenedipyridinium bis(tetrafluoridoborate)
aSchool of Chemical and Environmental Engineering, Changsha University of Science and Technology, Changsha 410076, People's Republic of China, and bHunan Research Institute of Chemical Industry, Changsha 410007, People's Republic of China
*Correspondence e-mail: jansenlee1103@yahoo.com.cn
In the organic cation of the title compound, C16H20N4O22+·2BF4−, the pyridinium rings are nearly parallel, with a dihedral angle of 12.54 (12)°. The crystal packing is stabilized by N—H⋯F, C—H⋯F and C—H⋯O hydrogen bonds.
Related literature
For the 1,2-bis(aminopyridinium)ethane dication, see: Xu et al. (2007); Fan et al. (2007).
For related literature, see: Allen et al. (1987); Li (2007); Loeb & Wisner (1998).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku/MSC, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: CrystalStructure (Rigaku/MSC, 2005).
Supporting information
https://doi.org/10.1107/S1600536807062617/bt2653sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807062617/bt2653Isup2.hkl
The title compound was prepared using the method of Li (2007). Colourless single crystals were grown by vapor diffusion of (iPr)2O into its acetonitrile solution.
The N-bound H atoms were refined freely while the other H atoms were positioned geometrically (C—H = 0.95, 0.98 and 0.99 Å) and refined as riding with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C).
As part of our continuous studies of derivatives of 1,2-bis(pyridinium)ethane dications (Xu et al., 2007; Fan et al., 2007), which can thread through the 24-membered crown ether (Loeb & Wisner, 1998), we herein report the
of the title compound (Fig. 1).The organic dication has two pyridinium rings with a dihedral angle of 12.54 (12) Å. The C3—N2 and C12—N4 bond lengths of 1.382 (3) and 1.379 (3) Å, respectively, are between typical C=N (1.34–1.38 Å) and C—N bond lengths (1.47–1.50 Å; Allen et al., 1987), suggesting significant double-bond character. The N1+···N3+ distance is 3.765 (3) Å, similar to those reported for the related analogues (Xu et al., 2007; Fan et al., 2007; Loeb & Wisner, 1998).
The
is stabilized by a series of inter-molecular N—H···F, C—H···F and C—H···O hydrogen bonds (Table 1).For the 1,2-bis(aminopyridinium)ethane dications, see: Xu et al. (2007); Fan et al. (2007).
For related literature, see: Allen et al. (1987); Li (2007); Loeb & Wisner (1998).
Data collection: CrystalClear (Rigaku/MSC, 2005); cell
CrystalClear (Rigaku/MSC, 2005); data reduction: CrystalClear (Rigaku/MSC, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: CrystalStructure (Rigaku/MSC, 2005).Fig. 1. The molecular structure of (I) with the atom-numbering scheme and 50% probability displacement ellipsoids. |
C16H20N4O22+·2BF4− | F(000) = 968 |
Mr = 473.98 | Dx = 1.598 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4669 reflections |
a = 11.368 (2) Å | θ = 2.5–25.0° |
b = 19.422 (4) Å | µ = 0.16 mm−1 |
c = 9.0959 (18) Å | T = 113 K |
β = 101.12 (3)° | Prism, colorless |
V = 1970.6 (7) Å3 | 0.32 × 0.20 × 0.18 mm |
Z = 4 |
Rigaku Saturn diffractometer | 3846 independent reflections |
Radiation source: Rotating anode | 3138 reflections with I > 2σ(I) |
Confocal monochromator | Rint = 0.054 |
Detector resolution: 7.31 pixels mm-1 | θmax = 26.0°, θmin = 1.8° |
ω scans | h = −14→13 |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | k = −23→23 |
Tmin = 0.952, Tmax = 0.973 | l = −11→11 |
21399 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.144 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.15 | w = 1/[σ2(Fo2) + (0.0635P)2 + 1.1885P] where P = (Fo2 + 2Fc2)/3 |
3846 reflections | (Δ/σ)max < 0.001 |
299 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.30 e Å−3 |
C16H20N4O22+·2BF4− | V = 1970.6 (7) Å3 |
Mr = 473.98 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.368 (2) Å | µ = 0.16 mm−1 |
b = 19.422 (4) Å | T = 113 K |
c = 9.0959 (18) Å | 0.32 × 0.20 × 0.18 mm |
β = 101.12 (3)° |
Rigaku Saturn diffractometer | 3846 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | 3138 reflections with I > 2σ(I) |
Tmin = 0.952, Tmax = 0.973 | Rint = 0.054 |
21399 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.144 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.15 | Δρmax = 0.33 e Å−3 |
3846 reflections | Δρmin = −0.30 e Å−3 |
299 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
N1 | 0.32100 (17) | 0.51691 (10) | 0.6784 (2) | 0.0170 (4) | |
N2 | 0.56501 (18) | 0.63875 (11) | 0.9608 (2) | 0.0198 (5) | |
N3 | 0.15074 (17) | 0.44990 (10) | 0.3099 (2) | 0.0185 (4) | |
N4 | −0.11675 (18) | 0.34400 (11) | 0.0245 (2) | 0.0193 (5) | |
O1 | 0.72991 (16) | 0.57022 (9) | 1.0292 (2) | 0.0329 (5) | |
O2 | −0.23344 (15) | 0.42922 (9) | −0.09946 (19) | 0.0256 (4) | |
C1 | 0.2934 (2) | 0.58226 (12) | 0.7114 (3) | 0.0189 (5) | |
H1 | 0.2172 | 0.6007 | 0.6685 | 0.023* | |
C2 | 0.3735 (2) | 0.62158 (12) | 0.8049 (3) | 0.0191 (5) | |
H2 | 0.3525 | 0.6672 | 0.8275 | 0.023* | |
C3 | 0.4868 (2) | 0.59555 (12) | 0.8686 (2) | 0.0165 (5) | |
C4 | 0.5144 (2) | 0.52784 (12) | 0.8323 (2) | 0.0182 (5) | |
H4 | 0.5902 | 0.5082 | 0.8728 | 0.022* | |
C5 | 0.4291 (2) | 0.49065 (12) | 0.7369 (2) | 0.0176 (5) | |
H5 | 0.4473 | 0.4449 | 0.7117 | 0.021* | |
C6 | 0.6832 (2) | 0.62699 (13) | 1.0264 (3) | 0.0214 (5) | |
C7 | 0.7466 (2) | 0.69017 (13) | 1.0942 (3) | 0.0261 (6) | |
H7A | 0.8307 | 0.6791 | 1.1350 | 0.039* | |
H7B | 0.7082 | 0.7070 | 1.1749 | 0.039* | |
H7C | 0.7426 | 0.7259 | 1.0172 | 0.039* | |
C8 | 0.2312 (2) | 0.47529 (12) | 0.5753 (2) | 0.0181 (5) | |
H8A | 0.1493 | 0.4893 | 0.5848 | 0.022* | |
H8B | 0.2415 | 0.4259 | 0.6019 | 0.022* | |
C9 | 0.2478 (2) | 0.48615 (13) | 0.4140 (3) | 0.0215 (5) | |
H9A | 0.2453 | 0.5360 | 0.3904 | 0.026* | |
H9B | 0.3267 | 0.4680 | 0.4020 | 0.026* | |
C10 | 0.0551 (2) | 0.48478 (13) | 0.2363 (3) | 0.0192 (5) | |
H10 | 0.0509 | 0.5331 | 0.2512 | 0.023* | |
C11 | −0.0370 (2) | 0.45266 (12) | 0.1399 (3) | 0.0182 (5) | |
H11 | −0.1039 | 0.4783 | 0.0893 | 0.022* | |
C12 | −0.0302 (2) | 0.38156 (12) | 0.1180 (2) | 0.0179 (5) | |
C13 | 0.0700 (2) | 0.34627 (13) | 0.1969 (3) | 0.0206 (5) | |
H13 | 0.0767 | 0.2980 | 0.1843 | 0.025* | |
C14 | 0.1577 (2) | 0.38076 (13) | 0.2913 (3) | 0.0217 (5) | |
H14 | 0.2247 | 0.3562 | 0.3449 | 0.026* | |
C15 | −0.2133 (2) | 0.36836 (13) | −0.0805 (3) | 0.0203 (5) | |
C16 | −0.2881 (2) | 0.31331 (14) | −0.1681 (3) | 0.0276 (6) | |
H16A | −0.3716 | 0.3287 | −0.1938 | 0.041* | |
H16B | −0.2834 | 0.2713 | −0.1077 | 0.041* | |
H16C | −0.2581 | 0.3039 | −0.2602 | 0.041* | |
B1 | 0.0229 (2) | 0.65645 (12) | 0.4308 (3) | 0.0138 (5) | |
B2 | 0.5204 (3) | 0.83160 (14) | 0.9965 (3) | 0.0203 (6) | |
F1 | 0.02861 (13) | 0.59066 (7) | 0.49479 (16) | 0.0253 (4) | |
F2 | −0.09234 (14) | 0.68388 (8) | 0.43197 (18) | 0.0347 (4) | |
F3 | 0.03702 (16) | 0.65177 (9) | 0.28453 (19) | 0.0407 (5) | |
F4 | 0.10691 (17) | 0.69772 (9) | 0.5142 (2) | 0.0533 (6) | |
F5 | 0.44339 (13) | 0.88840 (7) | 0.97263 (16) | 0.0284 (4) | |
F6 | 0.60218 (15) | 0.83575 (8) | 0.90042 (18) | 0.0344 (4) | |
F7 | 0.45540 (13) | 0.77098 (7) | 0.96911 (17) | 0.0289 (4) | |
F8 | 0.58269 (13) | 0.83141 (8) | 1.14353 (17) | 0.0337 (4) | |
H4A | −0.110 (2) | 0.3030 (16) | 0.024 (3) | 0.025 (8)* | |
H2A | 0.541 (2) | 0.6827 (15) | 0.963 (3) | 0.026 (7)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0198 (10) | 0.0167 (10) | 0.0145 (9) | −0.0025 (8) | 0.0037 (8) | 0.0001 (8) |
N2 | 0.0203 (11) | 0.0165 (11) | 0.0206 (10) | −0.0009 (9) | −0.0008 (8) | −0.0030 (8) |
N3 | 0.0212 (10) | 0.0190 (10) | 0.0152 (9) | −0.0043 (9) | 0.0031 (8) | −0.0012 (8) |
N4 | 0.0209 (11) | 0.0158 (11) | 0.0191 (10) | −0.0011 (9) | −0.0017 (8) | −0.0017 (8) |
O1 | 0.0231 (10) | 0.0234 (10) | 0.0467 (12) | 0.0029 (8) | −0.0072 (9) | −0.0055 (9) |
O2 | 0.0256 (10) | 0.0233 (10) | 0.0242 (9) | 0.0037 (8) | −0.0043 (7) | 0.0023 (7) |
C1 | 0.0191 (12) | 0.0186 (12) | 0.0191 (11) | 0.0012 (10) | 0.0041 (9) | 0.0013 (9) |
C2 | 0.0226 (13) | 0.0157 (12) | 0.0192 (12) | 0.0017 (10) | 0.0050 (10) | −0.0010 (9) |
C3 | 0.0164 (12) | 0.0194 (12) | 0.0135 (11) | −0.0040 (10) | 0.0020 (9) | −0.0001 (9) |
C4 | 0.0188 (12) | 0.0192 (12) | 0.0160 (11) | 0.0006 (10) | 0.0017 (9) | 0.0019 (9) |
C5 | 0.0199 (12) | 0.0159 (11) | 0.0173 (11) | 0.0013 (10) | 0.0043 (9) | 0.0009 (9) |
C6 | 0.0217 (13) | 0.0215 (13) | 0.0194 (12) | −0.0034 (11) | 0.0000 (10) | 0.0002 (10) |
C7 | 0.0209 (13) | 0.0249 (14) | 0.0287 (14) | −0.0047 (11) | −0.0047 (11) | −0.0040 (11) |
C8 | 0.0162 (12) | 0.0192 (12) | 0.0168 (11) | −0.0049 (10) | −0.0015 (9) | −0.0003 (9) |
C9 | 0.0226 (13) | 0.0237 (13) | 0.0171 (12) | −0.0070 (10) | 0.0010 (10) | −0.0028 (10) |
C10 | 0.0231 (13) | 0.0192 (12) | 0.0159 (11) | 0.0005 (10) | 0.0051 (10) | 0.0012 (9) |
C11 | 0.0193 (12) | 0.0187 (12) | 0.0166 (11) | −0.0007 (10) | 0.0033 (9) | 0.0005 (9) |
C12 | 0.0181 (12) | 0.0209 (12) | 0.0152 (11) | −0.0029 (10) | 0.0043 (9) | −0.0006 (9) |
C13 | 0.0202 (13) | 0.0193 (12) | 0.0212 (12) | 0.0020 (10) | 0.0014 (10) | −0.0024 (9) |
C14 | 0.0209 (13) | 0.0225 (13) | 0.0206 (12) | 0.0030 (10) | 0.0014 (10) | −0.0006 (10) |
C15 | 0.0189 (12) | 0.0254 (14) | 0.0166 (11) | −0.0012 (10) | 0.0033 (10) | 0.0008 (10) |
C16 | 0.0266 (14) | 0.0269 (14) | 0.0249 (13) | −0.0052 (11) | −0.0062 (11) | 0.0008 (11) |
B1 | 0.0190 (13) | 0.0070 (12) | 0.0138 (12) | 0.0019 (10) | −0.0013 (10) | 0.0015 (9) |
B2 | 0.0228 (14) | 0.0180 (14) | 0.0208 (13) | −0.0001 (11) | 0.0058 (11) | 0.0009 (11) |
F1 | 0.0282 (8) | 0.0186 (7) | 0.0283 (8) | 0.0002 (6) | 0.0031 (6) | 0.0028 (6) |
F2 | 0.0340 (9) | 0.0373 (9) | 0.0337 (9) | 0.0130 (7) | 0.0087 (7) | 0.0055 (7) |
F3 | 0.0468 (10) | 0.0440 (10) | 0.0365 (9) | 0.0125 (8) | 0.0209 (8) | 0.0144 (8) |
F4 | 0.0494 (11) | 0.0233 (9) | 0.0726 (14) | −0.0099 (8) | −0.0250 (10) | 0.0009 (8) |
F5 | 0.0339 (9) | 0.0204 (8) | 0.0316 (8) | 0.0070 (6) | 0.0081 (7) | −0.0004 (6) |
F6 | 0.0409 (10) | 0.0280 (9) | 0.0403 (9) | 0.0029 (7) | 0.0231 (8) | 0.0036 (7) |
F7 | 0.0277 (8) | 0.0187 (8) | 0.0374 (9) | −0.0036 (6) | −0.0004 (7) | 0.0015 (6) |
F8 | 0.0268 (8) | 0.0462 (10) | 0.0257 (8) | 0.0029 (7) | −0.0010 (6) | −0.0096 (7) |
N1—C5 | 1.342 (3) | C8—C9 | 1.529 (3) |
N1—C1 | 1.355 (3) | C8—H8A | 0.9900 |
N1—C8 | 1.485 (3) | C8—H8B | 0.9900 |
N2—C6 | 1.380 (3) | C9—H9A | 0.9900 |
N2—C3 | 1.382 (3) | C9—H9B | 0.9900 |
N2—H2A | 0.90 (3) | C10—C11 | 1.378 (3) |
N3—C10 | 1.345 (3) | C10—H10 | 0.9500 |
N3—C14 | 1.358 (3) | C11—C12 | 1.400 (3) |
N3—C9 | 1.485 (3) | C11—H11 | 0.9500 |
N4—C12 | 1.379 (3) | C12—C13 | 1.403 (3) |
N4—C15 | 1.391 (3) | C13—C14 | 1.360 (3) |
N4—H4A | 0.80 (3) | C13—H13 | 0.9500 |
O1—C6 | 1.222 (3) | C14—H14 | 0.9500 |
O2—C15 | 1.210 (3) | C15—C16 | 1.496 (3) |
C1—C2 | 1.355 (3) | C16—H16A | 0.9800 |
C1—H1 | 0.9500 | C16—H16B | 0.9800 |
C2—C3 | 1.401 (3) | C16—H16C | 0.9800 |
C2—H2 | 0.9500 | B1—F4 | 1.361 (3) |
C3—C4 | 1.406 (3) | B1—F3 | 1.373 (3) |
C4—C5 | 1.375 (3) | B1—F1 | 1.401 (3) |
C4—H4 | 0.9500 | B1—F2 | 1.416 (3) |
C5—H5 | 0.9500 | B2—F7 | 1.387 (3) |
C6—C7 | 1.495 (3) | B2—F8 | 1.387 (3) |
C7—H7A | 0.9800 | B2—F6 | 1.396 (3) |
C7—H7B | 0.9800 | B2—F5 | 1.399 (3) |
C7—H7C | 0.9800 | ||
C5—N1—C1 | 120.1 (2) | N3—C9—C8 | 109.43 (19) |
C5—N1—C8 | 120.6 (2) | N3—C9—H9A | 109.8 |
C1—N1—C8 | 119.3 (2) | C8—C9—H9A | 109.8 |
C6—N2—C3 | 128.4 (2) | N3—C9—H9B | 109.8 |
C6—N2—H2A | 114.9 (18) | C8—C9—H9B | 109.8 |
C3—N2—H2A | 115.4 (18) | H9A—C9—H9B | 108.2 |
C10—N3—C14 | 119.8 (2) | N3—C10—C11 | 122.1 (2) |
C10—N3—C9 | 120.6 (2) | N3—C10—H10 | 119.0 |
C14—N3—C9 | 119.6 (2) | C11—C10—H10 | 119.0 |
C12—N4—C15 | 128.2 (2) | C10—C11—C12 | 118.7 (2) |
C12—N4—H4A | 118 (2) | C10—C11—H11 | 120.6 |
C15—N4—H4A | 114 (2) | C12—C11—H11 | 120.6 |
N1—C1—C2 | 120.7 (2) | N4—C12—C11 | 123.9 (2) |
N1—C1—H1 | 119.6 | N4—C12—C13 | 118.0 (2) |
C2—C1—H1 | 119.6 | C11—C12—C13 | 118.1 (2) |
C1—C2—C3 | 120.6 (2) | C14—C13—C12 | 120.4 (2) |
C1—C2—H2 | 119.7 | C14—C13—H13 | 119.8 |
C3—C2—H2 | 119.7 | C12—C13—H13 | 119.8 |
N2—C3—C2 | 117.7 (2) | N3—C14—C13 | 120.8 (2) |
N2—C3—C4 | 124.3 (2) | N3—C14—H14 | 119.6 |
C2—C3—C4 | 118.0 (2) | C13—C14—H14 | 119.6 |
C5—C4—C3 | 118.5 (2) | O2—C15—N4 | 122.2 (2) |
C5—C4—H4 | 120.7 | O2—C15—C16 | 123.3 (2) |
C3—C4—H4 | 120.7 | N4—C15—C16 | 114.5 (2) |
N1—C5—C4 | 122.1 (2) | C15—C16—H16A | 109.5 |
N1—C5—H5 | 119.0 | C15—C16—H16B | 109.5 |
C4—C5—H5 | 119.0 | H16A—C16—H16B | 109.5 |
O1—C6—N2 | 122.8 (2) | C15—C16—H16C | 109.5 |
O1—C6—C7 | 124.0 (2) | H16A—C16—H16C | 109.5 |
N2—C6—C7 | 113.2 (2) | H16B—C16—H16C | 109.5 |
C6—C7—H7A | 109.5 | F4—B1—F3 | 112.2 (2) |
C6—C7—H7B | 109.5 | F4—B1—F1 | 109.50 (19) |
H7A—C7—H7B | 109.5 | F3—B1—F1 | 109.73 (19) |
C6—C7—H7C | 109.5 | F4—B1—F2 | 109.0 (2) |
H7A—C7—H7C | 109.5 | F3—B1—F2 | 108.29 (19) |
H7B—C7—H7C | 109.5 | F1—B1—F2 | 108.0 (2) |
N1—C8—C9 | 109.54 (19) | F7—B2—F8 | 109.0 (2) |
N1—C8—H8A | 109.8 | F7—B2—F6 | 109.4 (2) |
C9—C8—H8A | 109.8 | F8—B2—F6 | 109.0 (2) |
N1—C8—H8B | 109.8 | F7—B2—F5 | 110.2 (2) |
C9—C8—H8B | 109.8 | F8—B2—F5 | 109.9 (2) |
H8A—C8—H8B | 108.2 | F6—B2—F5 | 109.2 (2) |
C5—N1—C1—C2 | −0.9 (3) | C14—N3—C9—C8 | −78.7 (3) |
C8—N1—C1—C2 | −179.9 (2) | N1—C8—C9—N3 | −174.58 (18) |
N1—C1—C2—C3 | 0.5 (4) | C14—N3—C10—C11 | −0.7 (3) |
C6—N2—C3—C2 | −174.5 (2) | C9—N3—C10—C11 | −179.4 (2) |
C6—N2—C3—C4 | 4.2 (4) | N3—C10—C11—C12 | −0.2 (3) |
C1—C2—C3—N2 | 178.8 (2) | C15—N4—C12—C11 | 11.1 (4) |
C1—C2—C3—C4 | 0.0 (3) | C15—N4—C12—C13 | −169.5 (2) |
N2—C3—C4—C5 | −178.8 (2) | C10—C11—C12—N4 | −179.9 (2) |
C2—C3—C4—C5 | −0.1 (3) | C10—C11—C12—C13 | 0.6 (3) |
C1—N1—C5—C4 | 0.7 (3) | N4—C12—C13—C14 | −179.6 (2) |
C8—N1—C5—C4 | 179.8 (2) | C11—C12—C13—C14 | −0.2 (4) |
C3—C4—C5—N1 | −0.2 (3) | C10—N3—C14—C13 | 1.2 (3) |
C3—N2—C6—O1 | −11.9 (4) | C9—N3—C14—C13 | 179.9 (2) |
C3—N2—C6—C7 | 168.7 (2) | C12—C13—C14—N3 | −0.7 (4) |
C5—N1—C8—C9 | −89.3 (3) | C12—N4—C15—O2 | −1.4 (4) |
C1—N1—C8—C9 | 89.7 (3) | C12—N4—C15—C16 | 177.8 (2) |
C10—N3—C9—C8 | 100.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···F7 | 0.90 (3) | 1.98 (3) | 2.862 (3) | 168 (3) |
N4—H4A···F4i | 0.80 (3) | 2.08 (3) | 2.868 (3) | 170 (3) |
C1—H1···F1 | 0.95 | 2.41 | 3.269 (3) | 150 |
C1—H1···F4 | 0.95 | 2.53 | 3.358 (3) | 145 |
C4—H4···O2ii | 0.95 | 2.50 | 3.404 (3) | 159 |
C5—H5···F6iii | 0.95 | 2.37 | 3.251 (3) | 153 |
C10—H10···F3 | 0.95 | 2.33 | 3.285 (3) | 179 |
C11—H11···O1iv | 0.95 | 2.58 | 3.496 (3) | 162 |
C13—H13···F2i | 0.95 | 2.48 | 3.391 (3) | 162 |
C14—H14···F8iii | 0.95 | 2.22 | 3.050 (3) | 145 |
Symmetry codes: (i) −x, y−1/2, −z+1/2; (ii) x+1, y, z+1; (iii) −x+1, y−1/2, −z+3/2; (iv) x−1, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | C16H20N4O22+·2BF4− |
Mr | 473.98 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 113 |
a, b, c (Å) | 11.368 (2), 19.422 (4), 9.0959 (18) |
β (°) | 101.12 (3) |
V (Å3) | 1970.6 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.16 |
Crystal size (mm) | 0.32 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Rigaku Saturn |
Absorption correction | Multi-scan (CrystalClear; Rigaku/MSC, 2005) |
Tmin, Tmax | 0.952, 0.973 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21399, 3846, 3138 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.144, 1.15 |
No. of reflections | 3846 |
No. of parameters | 299 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.30 |
Computer programs: CrystalClear (Rigaku/MSC, 2005), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 1997), CrystalStructure (Rigaku/MSC, 2005).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···F7 | 0.90 (3) | 1.98 (3) | 2.862 (3) | 168 (3) |
N4—H4A···F4i | 0.80 (3) | 2.08 (3) | 2.868 (3) | 170 (3) |
C1—H1···F1 | 0.95 | 2.41 | 3.269 (3) | 150 |
C1—H1···F4 | 0.95 | 2.53 | 3.358 (3) | 145 |
C4—H4···O2ii | 0.95 | 2.50 | 3.404 (3) | 159 |
C5—H5···F6iii | 0.95 | 2.37 | 3.251 (3) | 153 |
C10—H10···F3 | 0.95 | 2.33 | 3.285 (3) | 179 |
C11—H11···O1iv | 0.95 | 2.58 | 3.496 (3) | 162 |
C13—H13···F2i | 0.95 | 2.48 | 3.391 (3) | 162 |
C14—H14···F8iii | 0.95 | 2.22 | 3.050 (3) | 145 |
Symmetry codes: (i) −x, y−1/2, −z+1/2; (ii) x+1, y, z+1; (iii) −x+1, y−1/2, −z+3/2; (iv) x−1, y, z−1. |
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Bruker (1997). SHELXTL. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Fan, X.-P., Li, J.-S., Zhang, Y.-Y. & Zhou, X.-L. (2007). Acta Cryst. E63, o1717–o1718. Web of Science CSD CrossRef IUCr Journals Google Scholar
Li, J. S. (2007). PhD dissertation. Tianjin University, People's Republic of China. Google Scholar
Loeb, S. J. & Wisner, J. A. (1998). Angew. Chem. Int. Ed. 37, 2838–2840. CrossRef CAS Google Scholar
Rigaku/MSC (2005). CrystalClear and CrystalStructure. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Xu, Y.-J., Li, J.-S., Qin, L. & Wang, W. (2007). Acta Cryst. E63, o1825–o1826. Web of Science CSD CrossRef IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
As part of our continuous studies of derivatives of 1,2-bis(pyridinium)ethane dications (Xu et al., 2007; Fan et al., 2007), which can thread through the 24-membered crown ether (Loeb & Wisner, 1998), we herein report the crystal structure of the title compound (Fig. 1).
The organic dication has two pyridinium rings with a dihedral angle of 12.54 (12) Å. The C3—N2 and C12—N4 bond lengths of 1.382 (3) and 1.379 (3) Å, respectively, are between typical C=N (1.34–1.38 Å) and C—N bond lengths (1.47–1.50 Å; Allen et al., 1987), suggesting significant double-bond character. The N1+···N3+ distance is 3.765 (3) Å, similar to those reported for the related analogues (Xu et al., 2007; Fan et al., 2007; Loeb & Wisner, 1998).
The crystal structure is stabilized by a series of inter-molecular N—H···F, C—H···F and C—H···O hydrogen bonds (Table 1).