supplementary materials
Hemi(4,4'-bipyridinium) hexafluoridophosphate bis(4-aminobenzoic acid) 4,4'-bipyridine monohydrate
4-Aminobenzoic acid (1 mmol, 0.137 g), 4,4'-bipyridine (1 mmol, 0.156 g)
and sodium hexafluoridophosphate (1 mmol, 0.162 g) were dissolved
in hot water with stirring.
Colorless single crystals were obtained at room temperature by slow
evaporation of the solvent over a period of several days.
The disordered perchlorate ion was refined over two sites, with refined
occupancies of 0.625 (8) and 0.375 (9).
The P···F and F···F distances were
restrained to be 1.48 (1) and 2.10 (3) Å, respectively.
Water H atoms were
located in a difference Fourier map and refined with distance restraints of
O—H = 0.86 Å and H···H = 1.39 Å. The H atom bound to the N5 nitrogen atom
in the cation and the carboxylic H atoms were refined with distance restraints
of N—H = 0.90 Å and O—H = 0.90 Å, respectively. All other H atoms were
placed at calculated positions and treated as riding on the parent atoms, with
C—H = 0.93 Å, N—H = 0.86 Å, and with
Uiso(H) = 1.2Ueq(C, N).
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2 (Bruker, 2004); data reduction: APEX2 (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).
Hemi(4,4'-bipyridinium) hexafluoridophosphate bis(4-aminobenzoic acid)
4,4'-bipyridine monohydrate
top
Crystal data top
| 0.5C10H10N22+·PF6−·C10H8N2·2C7H7NO2·H2O | Z = 2 |
| Mr = 672.54 | F(000) = 694 |
| Triclinic, P1 | Dx = 1.483 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 10.1032 (2) Å | Cell parameters from 2023 reflections |
| b = 10.1142 (2) Å | θ = 2.4–19.5° |
| c = 16.8906 (3) Å | µ = 0.18 mm−1 |
| α = 92.557 (1)° | T = 296 K |
| β = 98.063 (1)° | Block, colourless |
| γ = 117.346 (1)° | 0.18 × 0.15 × 0.14 mm |
| V = 1506.23 (5) Å3 | |
Data collection top
Bruker APEXII area-detector diffractometer | 3129 reflections with I > 2σ(I) |
| Radiation source: fine-focus sealed tube | Rint = 0.057 |
| graphite | θmax = 27.9°, θmin = 2.3° |
| φ and ω scans | h = −13→13 |
| 22618 measured reflections | k = −13→13 |
| 7121 independent reflections | l = −20→22 |
Refinement top
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.066 | H-atom parameters constrained |
| wR(F2) = 0.205 | w = 1/[σ2(Fo2) + (0.0875P)2 + 0.1722P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.02 | (Δ/σ)max = 0.006 |
| 7121 reflections | Δρmax = 0.29 e Å−3 |
| 454 parameters | Δρmin = −0.33 e Å−3 |
| 43 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008) |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.009 (2) |
Crystal data top
| 0.5C10H10N22+·PF6−·C10H8N2·2C7H7NO2·H2O | γ = 117.346 (1)° |
| Mr = 672.54 | V = 1506.23 (5) Å3 |
| Triclinic, P1 | Z = 2 |
| a = 10.1032 (2) Å | Mo Kα radiation |
| b = 10.1142 (2) Å | µ = 0.18 mm−1 |
| c = 16.8906 (3) Å | T = 296 K |
| α = 92.557 (1)° | 0.18 × 0.15 × 0.14 mm |
| β = 98.063 (1)° | |
Data collection top
Bruker APEXII area-detector diffractometer | 3129 reflections with I > 2σ(I) |
| 22618 measured reflections | Rint = 0.057 |
| 7121 independent reflections | θmax = 27.9° |
Refinement top
| R[F2 > 2σ(F2)] = 0.066 | H-atom parameters constrained |
| wR(F2) = 0.205 | Δρmax = 0.29 e Å−3 |
| S = 1.02 | Δρmin = −0.33 e Å−3 |
| 7121 reflections | Absolute structure: ? |
| 454 parameters | Flack parameter: ? |
| 43 restraints | Rogers parameter: ? |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top| | x | y | z | Uiso*/Ueq | Occ. (<1) |
| C1 | 0.4034 (4) | 0.5337 (4) | 0.7188 (2) | 0.0650 (9) | |
| C2 | 0.4778 (4) | 0.5250 (4) | 0.7922 (2) | 0.0656 (9) | |
| H2 | 0.5740 | 0.5331 | 0.7960 | 0.079* | |
| C3 | 0.4122 (4) | 0.5047 (4) | 0.8589 (2) | 0.0602 (9) | |
| H3 | 0.4645 | 0.4991 | 0.9075 | 0.072* | |
| C4 | 0.2682 (3) | 0.4922 (3) | 0.8557 (2) | 0.0523 (8) | |
| C5 | 0.1957 (4) | 0.4726 (3) | 0.9266 (2) | 0.0576 (8) | |
| C6 | 0.1930 (4) | 0.4994 (3) | 0.7822 (2) | 0.0590 (8) | |
| H6 | 0.0961 | 0.4896 | 0.7783 | 0.071* | |
| C7 | 0.2589 (4) | 0.5208 (4) | 0.7152 (2) | 0.0646 (9) | |
| H7 | 0.2068 | 0.5267 | 0.6666 | 0.077* | |
| C8 | 0.8336 (4) | 0.1574 (4) | 0.3481 (2) | 0.0662 (9) | |
| H8 | 0.8482 | 0.2431 | 0.3790 | 0.079* | |
| C9 | 0.9268 (4) | 0.1700 (4) | 0.2940 (2) | 0.0627 (9) | |
| H9 | 1.0027 | 0.2642 | 0.2880 | 0.075* | |
| C10 | 0.9095 (3) | 0.0437 (3) | 0.24786 (18) | 0.0503 (7) | |
| C11 | 1.0119 (4) | 0.0620 (4) | 0.19048 (19) | 0.0555 (8) | |
| C12 | 0.7954 (3) | −0.0956 (4) | 0.25815 (19) | 0.0545 (8) | |
| H12 | 0.7825 | −0.1815 | 0.2283 | 0.065* | |
| C13 | 0.7011 (4) | −0.1079 (4) | 0.31200 (19) | 0.0579 (8) | |
| H13 | 0.6254 | −0.2022 | 0.3180 | 0.070* | |
| C14 | 0.7174 (4) | 0.0183 (4) | 0.35751 (19) | 0.0578 (8) | |
| N3 | 0.1693 (3) | −0.0235 (3) | 1.04268 (16) | 0.0592 (7) | |
| C16 | 0.2657 (5) | 0.1119 (4) | 1.0271 (2) | 0.0754 (11) | |
| H16 | 0.2693 | 0.1953 | 1.0549 | 0.090* | |
| C17 | 0.3601 (4) | 0.1349 (4) | 0.9723 (2) | 0.0682 (10) | |
| H17 | 0.4246 | 0.2321 | 0.9634 | 0.082* | |
| C18 | 0.3597 (3) | 0.0145 (3) | 0.93018 (17) | 0.0464 (7) | |
| C19 | 0.2589 (3) | −0.1253 (4) | 0.9462 (2) | 0.0606 (9) | |
| H19 | 0.2522 | −0.2109 | 0.9192 | 0.073* | |
| C20 | 0.1679 (4) | −0.1388 (4) | 1.0023 (2) | 0.0650 (9) | |
| H20 | 0.1018 | −0.2346 | 1.0122 | 0.078* | |
| C21 | 0.4624 (3) | 0.0328 (3) | 0.87181 (17) | 0.0452 (7) | |
| C22 | 0.5692 (4) | 0.1715 (4) | 0.8566 (2) | 0.0641 (9) | |
| H22 | 0.5793 | 0.2585 | 0.8839 | 0.077* | |
| C23 | 0.6600 (4) | 0.1817 (4) | 0.8017 (2) | 0.0662 (9) | |
| H23 | 0.7302 | 0.2765 | 0.7925 | 0.079* | |
| N4 | 0.6522 (3) | 0.0623 (3) | 0.76098 (15) | 0.0576 (7) | |
| C25 | 0.5513 (5) | −0.0691 (4) | 0.7747 (2) | 0.0791 (11) | |
| H25 | 0.5432 | −0.1540 | 0.7460 | 0.095* | |
| C26 | 0.4564 (4) | −0.0888 (4) | 0.8291 (2) | 0.0734 (11) | |
| H26 | 0.3877 | −0.1852 | 0.8369 | 0.088* | |
| N5 | 0.8058 (3) | 0.0432 (3) | 0.64624 (16) | 0.0600 (7) | |
| H27 | 0.7588 | 0.0538 | 0.6827 | 0.072* | |
| C28 | 0.9248 (4) | 0.1591 (4) | 0.6303 (2) | 0.0761 (11) | |
| H28 | 0.9572 | 0.2528 | 0.6586 | 0.091* | |
| C29 | 1.0029 (4) | 0.1461 (4) | 0.5730 (2) | 0.0719 (10) | |
| H29 | 1.0865 | 0.2306 | 0.5628 | 0.086* | |
| C30 | 0.9587 (3) | 0.0097 (3) | 0.53068 (17) | 0.0481 (7) | |
| C31 | 0.8329 (5) | −0.1090 (4) | 0.5490 (3) | 0.0920 (14) | |
| H31 | 0.7977 | −0.2044 | 0.5220 | 0.110* | |
| C32 | 0.7592 (5) | −0.0883 (5) | 0.6064 (3) | 0.0932 (13) | |
| H32 | 0.6736 | −0.1700 | 0.6172 | 0.112* | |
| F3 | 0.4396 (3) | 0.6418 (3) | 0.46460 (18) | 0.1343 (10) | |
| F6 | 0.0964 (3) | 0.5330 (3) | 0.3961 (2) | 0.1465 (12) | |
| N1 | 0.4710 (4) | 0.5607 (4) | 0.6526 (2) | 0.0960 (11) | |
| H1A | 0.5617 | 0.5727 | 0.6560 | 0.115* | |
| H1B | 0.4230 | 0.5658 | 0.6076 | 0.115* | |
| N2 | 0.6215 (3) | 0.0068 (4) | 0.41031 (18) | 0.0812 (9) | |
| H2A | 0.5499 | −0.0797 | 0.4156 | 0.097* | |
| H2B | 0.6331 | 0.0860 | 0.4380 | 0.097* | |
| O1 | 0.2766 (3) | 0.4659 (3) | 0.99380 (15) | 0.0756 (7) | |
| H1 | 0.2309 | 0.4589 | 1.0312 | 0.113* | |
| O2 | 0.0709 (3) | 0.4645 (3) | 0.92571 (15) | 0.0767 (7) | |
| O3 | 0.9955 (3) | −0.0651 (3) | 0.15538 (15) | 0.0728 (7) | |
| H3A | 1.0465 | −0.0476 | 0.1197 | 0.109* | |
| O4 | 1.1065 (3) | 0.1827 (3) | 0.17604 (15) | 0.0772 (7) | |
| P | 0.26740 (12) | 0.58756 (12) | 0.43141 (7) | 0.0774 (4) | |
| O1W | 0.1528 (2) | 0.4502 (3) | 0.12153 (13) | 0.0703 (7) | |
| H1W | 0.0862 | 0.4708 | 0.1110 | 0.105* | |
| H2W | 0.1255 | 0.3604 | 0.1373 | 0.105* | |
| F1 | 0.2698 (15) | 0.7215 (12) | 0.4737 (9) | 0.129 (5) | 0.375 (11) |
| F2 | 0.2105 (13) | 0.4994 (17) | 0.5008 (6) | 0.125 (5) | 0.375 (11) |
| F4 | 0.2560 (8) | 0.4439 (8) | 0.3880 (8) | 0.090 (4) | 0.375 (11) |
| F5 | 0.3176 (16) | 0.6648 (13) | 0.3621 (5) | 0.139 (5) | 0.375 (11) |
| F1' | 0.3113 (7) | 0.7452 (10) | 0.4047 (10) | 0.192 (6) | 0.625 (11) |
| F4' | 0.2424 (12) | 0.4441 (8) | 0.4616 (10) | 0.222 (6) | 0.625 (11) |
| F5' | 0.2826 (14) | 0.534 (2) | 0.3497 (4) | 0.239 (7) | 0.625 (11) |
| F2' | 0.2667 (13) | 0.6511 (18) | 0.5141 (5) | 0.217 (5) | 0.625 (11) |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| C1 | 0.070 (2) | 0.051 (2) | 0.073 (2) | 0.0229 (18) | 0.030 (2) | 0.0092 (17) |
| C2 | 0.056 (2) | 0.062 (2) | 0.084 (3) | 0.0283 (18) | 0.0231 (19) | 0.0113 (19) |
| C3 | 0.0564 (19) | 0.055 (2) | 0.070 (2) | 0.0254 (16) | 0.0149 (17) | 0.0129 (17) |
| C4 | 0.0520 (18) | 0.0403 (18) | 0.064 (2) | 0.0199 (15) | 0.0164 (16) | 0.0088 (15) |
| C5 | 0.059 (2) | 0.0442 (19) | 0.069 (2) | 0.0215 (16) | 0.0211 (18) | 0.0112 (16) |
| C6 | 0.0518 (18) | 0.051 (2) | 0.070 (2) | 0.0217 (16) | 0.0105 (17) | 0.0028 (17) |
| C7 | 0.068 (2) | 0.057 (2) | 0.067 (2) | 0.0268 (18) | 0.0146 (18) | 0.0086 (17) |
| C8 | 0.071 (2) | 0.056 (2) | 0.072 (2) | 0.0297 (19) | 0.0200 (19) | −0.0035 (18) |
| C9 | 0.062 (2) | 0.049 (2) | 0.072 (2) | 0.0206 (17) | 0.0181 (18) | 0.0064 (17) |
| C10 | 0.0495 (17) | 0.051 (2) | 0.0510 (18) | 0.0224 (15) | 0.0134 (14) | 0.0095 (15) |
| C11 | 0.0519 (18) | 0.061 (2) | 0.055 (2) | 0.0264 (18) | 0.0116 (16) | 0.0127 (17) |
| C12 | 0.0565 (19) | 0.0490 (19) | 0.057 (2) | 0.0225 (16) | 0.0166 (16) | 0.0052 (15) |
| C13 | 0.0565 (19) | 0.049 (2) | 0.061 (2) | 0.0174 (16) | 0.0175 (16) | 0.0089 (16) |
| C14 | 0.0563 (19) | 0.062 (2) | 0.056 (2) | 0.0272 (18) | 0.0155 (16) | 0.0050 (17) |
| N3 | 0.0575 (16) | 0.069 (2) | 0.0549 (17) | 0.0288 (15) | 0.0229 (13) | 0.0115 (15) |
| C16 | 0.099 (3) | 0.066 (3) | 0.080 (3) | 0.045 (2) | 0.045 (2) | 0.014 (2) |
| C17 | 0.085 (3) | 0.048 (2) | 0.080 (2) | 0.0299 (19) | 0.045 (2) | 0.0172 (18) |
| C18 | 0.0454 (16) | 0.0493 (19) | 0.0436 (17) | 0.0213 (15) | 0.0086 (13) | 0.0071 (14) |
| C19 | 0.0590 (19) | 0.046 (2) | 0.070 (2) | 0.0144 (16) | 0.0276 (17) | 0.0035 (16) |
| C20 | 0.056 (2) | 0.061 (2) | 0.068 (2) | 0.0151 (17) | 0.0243 (17) | 0.0088 (18) |
| C21 | 0.0466 (16) | 0.0461 (18) | 0.0424 (17) | 0.0200 (14) | 0.0114 (13) | 0.0086 (13) |
| C22 | 0.072 (2) | 0.047 (2) | 0.068 (2) | 0.0196 (17) | 0.0305 (18) | 0.0026 (16) |
| C23 | 0.067 (2) | 0.053 (2) | 0.068 (2) | 0.0147 (17) | 0.0289 (18) | 0.0063 (18) |
| N4 | 0.0616 (16) | 0.0588 (18) | 0.0543 (17) | 0.0268 (15) | 0.0213 (13) | 0.0086 (14) |
| C25 | 0.105 (3) | 0.052 (2) | 0.089 (3) | 0.034 (2) | 0.053 (2) | 0.008 (2) |
| C26 | 0.089 (3) | 0.042 (2) | 0.088 (3) | 0.0195 (18) | 0.054 (2) | 0.0121 (18) |
| N5 | 0.0648 (18) | 0.070 (2) | 0.0529 (16) | 0.0334 (16) | 0.0259 (14) | 0.0092 (15) |
| C28 | 0.069 (2) | 0.063 (2) | 0.087 (3) | 0.021 (2) | 0.030 (2) | −0.011 (2) |
| C29 | 0.060 (2) | 0.056 (2) | 0.085 (3) | 0.0109 (17) | 0.0320 (19) | −0.0064 (19) |
| C30 | 0.0546 (18) | 0.0451 (18) | 0.0462 (17) | 0.0219 (15) | 0.0172 (14) | 0.0127 (15) |
| C31 | 0.122 (3) | 0.048 (2) | 0.104 (3) | 0.023 (2) | 0.078 (3) | 0.008 (2) |
| C32 | 0.110 (3) | 0.060 (3) | 0.104 (3) | 0.022 (2) | 0.069 (3) | 0.013 (2) |
| F3 | 0.0937 (19) | 0.140 (3) | 0.145 (3) | 0.0434 (17) | −0.0065 (17) | −0.0012 (19) |
| F6 | 0.0795 (18) | 0.118 (2) | 0.226 (4) | 0.0400 (16) | 0.007 (2) | 0.001 (2) |
| N1 | 0.104 (3) | 0.109 (3) | 0.090 (3) | 0.052 (2) | 0.051 (2) | 0.029 (2) |
| N2 | 0.079 (2) | 0.077 (2) | 0.085 (2) | 0.0292 (17) | 0.0385 (18) | −0.0015 (17) |
| O1 | 0.0770 (17) | 0.0873 (18) | 0.0663 (16) | 0.0383 (15) | 0.0222 (13) | 0.0198 (14) |
| O2 | 0.0705 (16) | 0.0926 (19) | 0.0860 (18) | 0.0477 (15) | 0.0338 (14) | 0.0260 (14) |
| O3 | 0.0778 (17) | 0.0681 (17) | 0.0758 (17) | 0.0300 (13) | 0.0393 (13) | 0.0101 (13) |
| O4 | 0.0750 (16) | 0.0637 (17) | 0.0926 (19) | 0.0245 (14) | 0.0391 (14) | 0.0237 (14) |
| P | 0.0796 (7) | 0.0646 (7) | 0.0843 (8) | 0.0286 (6) | 0.0226 (6) | 0.0093 (6) |
| O1W | 0.0699 (15) | 0.0638 (15) | 0.0736 (16) | 0.0265 (12) | 0.0180 (12) | 0.0168 (12) |
| F1 | 0.171 (7) | 0.073 (6) | 0.130 (8) | 0.054 (5) | 0.012 (6) | −0.041 (5) |
| F2 | 0.122 (6) | 0.140 (9) | 0.098 (6) | 0.035 (6) | 0.057 (4) | 0.047 (6) |
| F4 | 0.067 (4) | 0.062 (5) | 0.135 (8) | 0.031 (3) | 0.009 (5) | −0.014 (4) |
| F5 | 0.193 (8) | 0.108 (8) | 0.080 (6) | 0.026 (6) | 0.071 (5) | 0.038 (5) |
| F1' | 0.100 (4) | 0.124 (7) | 0.341 (14) | 0.033 (4) | 0.045 (6) | 0.138 (8) |
| F4' | 0.223 (9) | 0.082 (5) | 0.352 (18) | 0.066 (5) | 0.023 (10) | 0.089 (8) |
| F5' | 0.241 (11) | 0.45 (2) | 0.085 (5) | 0.228 (14) | −0.006 (5) | −0.058 (9) |
| F2' | 0.294 (11) | 0.263 (14) | 0.141 (7) | 0.164 (11) | 0.081 (7) | −0.032 (8) |
Geometric parameters (Å, °) top
| C1—N1 | 1.364 (4) | C19—C20 | 1.380 (4) |
| C1—C2 | 1.387 (5) | C19—H19 | 0.9300 |
| C1—C7 | 1.396 (5) | C20—H20 | 0.9300 |
| C2—C3 | 1.361 (5) | C21—C26 | 1.370 (4) |
| C2—H2 | 0.9300 | C21—C22 | 1.385 (4) |
| C3—C4 | 1.394 (4) | C22—C23 | 1.368 (4) |
| C3—H3 | 0.9300 | C22—H22 | 0.9300 |
| C4—C6 | 1.385 (4) | C23—N4 | 1.327 (4) |
| C4—C5 | 1.465 (4) | C23—H23 | 0.9300 |
| C5—O2 | 1.223 (4) | N4—C25 | 1.306 (4) |
| C5—O1 | 1.325 (4) | C25—C26 | 1.376 (5) |
| C6—C7 | 1.368 (4) | C25—H25 | 0.9300 |
| C6—H6 | 0.9300 | C26—H26 | 0.9300 |
| C7—H7 | 0.9300 | N5—C32 | 1.304 (4) |
| C8—C9 | 1.372 (5) | N5—C28 | 1.310 (4) |
| C8—C14 | 1.392 (5) | N5—H27 | 0.8600 |
| C8—H8 | 0.9300 | C28—C29 | 1.369 (5) |
| C9—C10 | 1.391 (4) | C28—H28 | 0.9300 |
| C9—H9 | 0.9300 | C29—C30 | 1.367 (4) |
| C10—C12 | 1.389 (4) | C29—H29 | 0.9300 |
| C10—C11 | 1.472 (4) | C30—C31 | 1.377 (5) |
| C11—O4 | 1.218 (4) | C30—C30i | 1.477 (6) |
| C11—O3 | 1.318 (4) | C31—C32 | 1.366 (5) |
| C12—C13 | 1.376 (4) | C31—H31 | 0.9300 |
| C12—H12 | 0.9300 | C32—H32 | 0.9300 |
| C13—C14 | 1.390 (4) | F3—P | 1.570 (3) |
| C13—H13 | 0.9300 | F6—P | 1.566 (3) |
| C14—N2 | 1.377 (4) | N1—H1A | 0.8600 |
| N3—C20 | 1.317 (4) | N1—H1B | 0.8600 |
| N3—C16 | 1.331 (4) | N2—H2A | 0.8600 |
| C16—C17 | 1.373 (5) | N2—H2B | 0.8600 |
| C16—H16 | 0.9300 | O1—H1 | 0.8200 |
| C17—C18 | 1.381 (4) | O3—H3A | 0.8200 |
| C17—H17 | 0.9300 | O1W—H1W | 0.7910 |
| C18—C19 | 1.378 (4) | O1W—H2W | 0.8864 |
| C18—C21 | 1.487 (4) | | |
| | | |
| N1—C1—C2 | 121.3 (3) | C19—C18—C21 | 121.5 (3) |
| N1—C1—C7 | 120.6 (4) | C17—C18—C21 | 122.6 (3) |
| C2—C1—C7 | 118.0 (3) | C18—C19—C20 | 120.2 (3) |
| C3—C2—C1 | 121.1 (3) | C18—C19—H19 | 119.9 |
| C3—C2—H2 | 119.5 | C20—C19—H19 | 119.9 |
| C1—C2—H2 | 119.5 | N3—C20—C19 | 123.7 (3) |
| C2—C3—C4 | 121.2 (3) | N3—C20—H20 | 118.1 |
| C2—C3—H3 | 119.4 | C19—C20—H20 | 118.2 |
| C4—C3—H3 | 119.4 | C26—C21—C22 | 115.6 (3) |
| C6—C4—C3 | 117.9 (3) | C26—C21—C18 | 121.4 (3) |
| C6—C4—C5 | 119.7 (3) | C22—C21—C18 | 123.0 (3) |
| C3—C4—C5 | 122.4 (3) | C23—C22—C21 | 120.5 (3) |
| O2—C5—O1 | 121.4 (3) | C23—C22—H22 | 119.7 |
| O2—C5—C4 | 123.7 (3) | C21—C22—H22 | 119.7 |
| O1—C5—C4 | 115.0 (3) | N4—C23—C22 | 122.8 (3) |
| C7—C6—C4 | 121.1 (3) | N4—C23—H23 | 118.6 |
| C7—C6—H6 | 119.5 | C22—C23—H23 | 118.6 |
| C4—C6—H6 | 119.5 | C25—N4—C23 | 117.1 (3) |
| C6—C7—C1 | 120.8 (3) | N4—C25—C26 | 123.6 (3) |
| C6—C7—H7 | 119.6 | N4—C25—H25 | 118.2 |
| C1—C7—H7 | 119.6 | C26—C25—H25 | 118.2 |
| C9—C8—C14 | 120.9 (3) | C21—C26—C25 | 120.4 (3) |
| C9—C8—H8 | 119.5 | C21—C26—H26 | 119.8 |
| C14—C8—H8 | 119.5 | C25—C26—H26 | 119.8 |
| C8—C9—C10 | 120.9 (3) | C32—N5—C28 | 119.5 (3) |
| C8—C9—H9 | 119.5 | C32—N5—H27 | 120.3 |
| C10—C9—H9 | 119.5 | C28—N5—H27 | 120.3 |
| C12—C10—C9 | 118.3 (3) | N5—C28—C29 | 121.8 (3) |
| C12—C10—C11 | 122.5 (3) | N5—C28—H28 | 119.1 |
| C9—C10—C11 | 119.2 (3) | C29—C28—H28 | 119.1 |
| O4—C11—O3 | 121.3 (3) | C30—C29—C28 | 120.5 (3) |
| O4—C11—C10 | 124.2 (3) | C30—C29—H29 | 119.8 |
| O3—C11—C10 | 114.5 (3) | C28—C29—H29 | 119.8 |
| C13—C12—C10 | 120.8 (3) | C29—C30—C31 | 115.9 (3) |
| C13—C12—H12 | 119.6 | C29—C30—C30i | 122.2 (3) |
| C10—C12—H12 | 119.6 | C31—C30—C30i | 121.8 (4) |
| C12—C13—C14 | 121.0 (3) | C32—C31—C30 | 120.7 (4) |
| C12—C13—H13 | 119.5 | C32—C31—H31 | 119.6 |
| C14—C13—H13 | 119.5 | C30—C31—H31 | 119.6 |
| N2—C14—C13 | 121.2 (3) | N5—C32—C31 | 121.6 (4) |
| N2—C14—C8 | 120.7 (3) | N5—C32—H32 | 119.2 |
| C13—C14—C8 | 118.1 (3) | C31—C32—H32 | 119.2 |
| C20—N3—C16 | 116.4 (3) | C1—N1—H1A | 120.0 |
| N3—C16—C17 | 123.5 (3) | C1—N1—H1B | 120.0 |
| N3—C16—H16 | 118.3 | H1A—N1—H1B | 120.0 |
| C17—C16—H16 | 118.3 | C14—N2—H2A | 120.0 |
| C16—C17—C18 | 120.3 (3) | C14—N2—H2B | 120.0 |
| C16—C17—H17 | 119.9 | H2A—N2—H2B | 120.0 |
| C18—C17—H17 | 119.9 | F6—P—F3 | 178.6 (2) |
| C19—C18—C17 | 115.9 (3) | H1W—O1W—H2W | 115.1 |
| Symmetry codes: (i) −x+2, −y, −z+1. |
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| O1W—H2W···O4ii | 0.89 | 1.87 | 2.751 (3) | 169 |
| O1W—H1W···O2iii | 0.79 | 2.01 | 2.799 (3) | 174 |
| O3—H3A···N3iv | 0.82 | 1.87 | 2.686 (3) | 174 |
| O1—H1···O1Wv | 0.82 | 1.80 | 2.617 (3) | 173 |
| N1—H1B···F3 | 0.86 | 2.57 | 3.324 (4) | 147 |
| N5—H27···N4 | 0.86 | 1.84 | 2.700 (4) | 176 |
| Symmetry codes: (ii) x−1, y, z; (iii) −x, −y+1, −z+1; (iv) x+1, y, z−1; (v) x, y, z+1. |
Table 1
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| O1W—H2W···O4i | 0.89 | 1.87 | 2.751 (3) | 169 |
| O1W—H1W···O2ii | 0.79 | 2.01 | 2.799 (3) | 174 |
| O3—H3A···N3iii | 0.82 | 1.87 | 2.686 (3) | 174 |
| O1—H1···O1Wiv | 0.82 | 1.80 | 2.617 (3) | 173 |
| N1—H1B···F3 | 0.86 | 2.57 | 3.324 (4) | 147 |
| N5—H27···N4 | 0.86 | 1.84 | 2.700 (4) | 176 |
| Symmetry codes: (i) x−1, y, z; (ii) −x, −y+1, −z+1; (iii) x+1, y, z−1; (iv) x, y, z+1. |
The authors acknowledge South China Normal University for supporting this work.
Bruker (2004). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
Hu, D. H., Huang, W., Gou, S. H., Fang, J. L. & Fun, H. K. (2003). Polyhedron, 22, 2661–2667.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Yang, G. P., Wang, Z. Y. & Chen, J. T. (2004). J. Mol. Struct. 707, 223–229.
Hydrogen-bonding interactions between ligands are specific and directional. In this context, 4-aminobenzoic acid and 4,4'-bipyridine are excellent candidates for the construction of three-dimensional network motifs, which form regular hydrogen bonds, functioning as both hydrogen-bond donor and acceptor (Hu et al., 2003; Yang et al., 2004). Recently, we obtained the title compound under hydrothermal conditions and report its crystal structure here.
In the title compound (Fig. 1), all bond lengths and angles are unexceptional. The 4,4'-bipyridinium cation, which is located on a center of symmetry, is, on both sides, a hydrogen bond donor to unprotonated molecules of 4,4'-bipyridine. These are, in turn, hydrogen bond acceptors for one of the two independent molecules of 4-aminobenzoic acid. Thus the two 4-aminobenzoic acid molecules, the 4,4'-bipyridine and 4,4'-bipyridinium cation are connected by hydrogen bonding interactions to form a linear centrosymmetric chain. Further each of these chains is connected with each of two other chains by O—H···O hydrogen bonds (Table 1), via the interstitial solvent water molecules and the other independent 4-aminobenzoic acid molecules, forming, in effect, infinite chains with each repeating unit of five molecules offset against the next unit by the width of the connecting (C7NH7O2)2.(H2O)2 unit. π-π stacking interactions (the centroid-centroid distance between neighboring pyridyl rings is 3.643 Å) connect these chains to produce a three-dimensional network motif (Fig. 2).