organic compounds
3,3′-Diphenyl-1,1′-[2,2′-oxybis(2,1-phenylene)]diurea N,N-dimethylformamide disolvate
aCostas Charalambides & Sons Ltd, Tseriou Avenue 177, Strovolos 2045, Nicosia, Cyprus, and bDepartment of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand
*Correspondence e-mail: jsimpson@alkali.otago.ac.nz
In the structure of the title compound, C26H22N4O3·2C3H7NO, one of the DMF solvent molecules is disordered over two sets of positions in a 0.5:0.5 ratio. In the 1,1′-[2,2′-oxybis(2,1-phenylene)]bis(3-phenylurea) molecule, the two diphenylurea segments are linked via an ether O atom and are inclined at an angle of 53.80 (4)° to one another. In the classical N—H⋯O hydrogen bonds link each molecule to two DMF solvent molecules and these aggregates form columns down a through C—H⋯π interactions. Additional C—H⋯O interactions link the main molecule and the solvent molecules, forming columns of independent zigzag chains along b.
Related literature
For information on anion binding agents, see: Gunnlaugsson et al. (2004); Kim & Kim (2005). To our knowledge, no structures of oxybis(phenylene)phenylurea derivatives have been reported previously. However, for structures of N,N′-diphenylthiourea, see: Dannecker et al. (1979); Galkin et al. (2006). For structures of oxybis(aminobenzene) derivatives, see: Bensemann et al. (2003); Ashton et al. (1996).
Experimental
Crystal data
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Refinement
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Data collection: COLLECT (Nonius, 1998); cell SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997) and SCALEPACK; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97, enCIFer (Allen et al., 2004) and PLATON (Spek, 2003).
Supporting information
https://doi.org/10.1107/S1600536807066548/hb2678sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807066548/hb2678Isup2.hkl
To a solution of bis(2-aminophenyl)ether (1.00 g, 5.00 mmol) in dry distilled CH2Cl2 (30 ml) was added phenyl isocyanate (1.20 g, 10.00 mmol) and the reaction stirred under nitrogen at room temperature for 24 h. Following evaporation of the solvent a beige crystalline solid was obtained. Recrystallization from dimethylformamide layered with hexane afforded (I) (1.92 g, 88%) as colourless blocks: mp 388–390 K; νmax(MeCN) 258 nm; Found: C, 70.61%; H, 5.08%; N, 12.60%; M+ 438.16958 (EI). C26H22N4O3 requires C, 71.22%; H, 5.06%; N, 12.75; M+ 438.16919]; νmax/cm-1 3337 (NH), 1656 (NHCONH), 1599 (aromatic); δH (400 MHz, DMSO-d6) 9.26 (2H, s, (NH)2), 8.60 (2H, s, (NH)2) 8.30 (2H, d, J 8.1, ArH), 7.42 (4H, d, J 8.4, ArH), 7.25 (4H, t, J 7.9, ArH), 7.10 (2H, t, J 7.5, ArH), 6.94 (4H, t, J 7.4, ArH), 6.76 (2H, d, J 8.1, ArH); δC (125 MHz, CDCl3) 154.6, 147.7, 138.1, 129.0, 128.9, 125.1, 124.3, 124.1, 123.7, 120.7, 117.9.
In the absence of significant
effects, 2780 Friedel pairs were averaged for the One of the DMF solvate molecules is disordered over two sites and, in the final cycles, the occupancy factors of the two disorder components were each fixed at 0.5. Common, isotropic temperature factors were applied to the non-H atoms of these components. In the final difference map, two peaks > 0.7 e Å-3 in the vicinity of the O5 and O5' atoms of the two components of the disordered dimethylformamide solvate were apparent.All the H atoms were positioned geometrically (C—H = 0.95–0.98 Å, N—H = 0.88 Å) and refined as riding model with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C, N).
While a large amount of work has been done on organic-metal cation complexes, there is much less known about analogous organic-anion complexes. We are interested in looking at diureas as potential anion binding agents. Ureas and thioureas have previously shown some promise in this area, and bind to anions such as fluoride and chloride through the hydrogen atoms attached to the urea N atoms (Gunnlaugsson et al., 2004; Kim & Kim, 2005).
The title diurea compound, (I), was synthesized by the reaction of phenyl isocyanate and an aromatic diamine. The
shows that the bis-2,2-oxyphenyl motif used here may not be optimal for anion binding, as the urea units are splayed away from each other, though some of this may be due to binding to the solvent in the solid state. Initial NMR studies showed some affinity for both fluoride and chloride anions in chloroform.The
of (I) comprises a 1,1'-(2,2'-oxybis(2,1-phenylene))bis(3-phenylurea) molecule and two molecules of dimethylformamide solvate, one of which is disordered equally over two positions (Fig. 1). The two diphenylurea segments of the molecule are linked via the ether O2 atom to form a V-shaped molecule with the arms inclined at an angle of 53.80 (4)° to one another. One 1,3-diphenylurea segment of the molecule, incorporating atoms C1···O2, is reasonably planar with an r.m.s. deviation from the plane through all 17 atoms of 0.029 Å. Also, the C1···C6 ring makes a dihedral angle of only 2.8 (2)° with the C8···C13 ring plane. In contrast, the correponding deviation from the plane through the 17 atoms that make up the second O2···C26 diphenylurea unit is 0.241Å with the C41···C19 and C21···C26 rings inclined at 24.08 (18)°. This variation is undoubtedly due to crystal packing effects.In the crystal, classical N—H···O hydrogen bonds link each molecule to two DMF solvates (Table 1) and these aggregates form columns down a through an additional C31—H31A···Cg1 interaction, where Cg1 is the centroid of the C1···C6 ring. Then, C—H···O interactions further link the molecule and solvates into zigzag chains along b. The combination of these interactions stacks the chains into independent but interleaving columns, down a, as shown in Fig. 2.
For information on anion binding agents, see: Gunnlaugsson et al. (2004); Kim & Kim (2005). To our knowledge, no structures of oxybis(phenylene)phenylurea derivatives have been reported previously. However, for structures of N,N'-diphenylthiourea, see: Dannecker et al. (1979); Galkin et al. (2006). For structures of oxybis(aminobenzene) derivatives, see: Bensemann et al. (2003); Ashton et al. (1996). Cg1 is the centroid of the C1–C6 ring.
Data collection: COLLECT (Nonius, 1998); cell
SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997) and SCALEPACK; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997), enCIFer (Allen et al., 2004) and PLATON (Spek, 2003).Fig. 1. The structure of (I) showing displacement ellipsoids drawn at the 50% probability level. For clarity, only one of the disorder components of the N6 dimethylformamide solvate molecule is shown. | |
Fig. 2. Crystal packing for (I) with hydrogen bonds drawn as dashed lines and the second disorder component of the N6 dimethylformamide solvate molecule omitted. |
C26H22N4O3·2(C3H7NO) | F(000) = 620 |
Mr = 584.67 | Dx = 1.305 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2yb | Cell parameters from 11759 reflections |
a = 11.1035 (2) Å | θ = 1.0–27.5° |
b = 8.1564 (2) Å | µ = 0.09 mm−1 |
c = 16.8881 (3) Å | T = 180 K |
β = 103.429 (1)° | Block, colourless |
V = 1487.65 (5) Å3 | 0.46 × 0.35 × 0.23 mm |
Z = 2 |
Nonius KappaCCD diffractometer | 3337 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.032 |
Thin–slice ω and φ scans | θmax = 27.5°, θmin = 3.5° |
Absorption correction: multi-scan (SORTAV; Blessing, 1995) | h = −14→14 |
Tmin = 0.905, Tmax = 0.979 | k = −9→10 |
16291 measured reflections | l = −21→21 |
3643 independent reflections |
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)] = 0.051 | H-atom parameters constrained |
wR(F2) = 0.140 | w = 1/[σ2(Fo2) + (0.0791P)2 + 0.5832P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
3643 reflections | Δρmax = 0.79 e Å−3 |
385 parameters | Δρmin = −0.36 e Å−3 |
25 restraints | Extinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.036 (6) |
C26H22N4O3·2(C3H7NO) | V = 1487.65 (5) Å3 |
Mr = 584.67 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 11.1035 (2) Å | µ = 0.09 mm−1 |
b = 8.1564 (2) Å | T = 180 K |
c = 16.8881 (3) Å | 0.46 × 0.35 × 0.23 mm |
β = 103.429 (1)° |
Nonius KappaCCD diffractometer | 3643 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995) | 3337 reflections with I > 2σ(I) |
Tmin = 0.905, Tmax = 0.979 | Rint = 0.032 |
16291 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 25 restraints |
wR(F2) = 0.140 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.79 e Å−3 |
3643 reflections | Δρmin = −0.36 e Å−3 |
385 parameters |
Experimental. One of the DMF solvate molecules is disordered over two sites: common, isotropic temperature factors were applied to the non-H atoms of this moiety. |
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 | Occ. (<1) | |
N1 | 0.0475 (2) | 0.8656 (4) | 0.19863 (16) | 0.0384 (6) | |
H1N | 0.1190 | 0.8925 | 0.1882 | 0.046* | |
O1 | −0.0703 (2) | 0.9052 (4) | 0.29150 (15) | 0.0546 (7) | |
C1 | −0.1737 (3) | 0.5733 (5) | 0.0162 (2) | 0.0487 (8) | |
H1 | −0.2225 | 0.5077 | −0.0257 | 0.058* | |
N2 | 0.1272 (2) | 1.0072 (3) | 0.31451 (15) | 0.0343 (6) | |
H2N | 0.1937 | 1.0089 | 0.2946 | 0.041* | |
O2 | 0.33284 (17) | 1.1674 (3) | 0.37323 (11) | 0.0365 (5) | |
C2 | −0.2174 (3) | 0.6157 (4) | 0.0830 (2) | 0.0436 (8) | |
H2 | −0.2966 | 0.5780 | 0.0872 | 0.052* | |
O3 | 0.56816 (19) | 1.4761 (4) | 0.21808 (13) | 0.0506 (7) | |
N3 | 0.4261 (2) | 1.3857 (4) | 0.28714 (16) | 0.0381 (6) | |
H3N | 0.3461 | 1.3781 | 0.2841 | 0.046* | |
C3 | −0.1478 (3) | 0.7131 (4) | 0.14500 (19) | 0.0385 (7) | |
H3 | −0.1798 | 0.7421 | 0.1906 | 0.046* | |
N4 | 0.3619 (2) | 1.4974 (4) | 0.16115 (17) | 0.0446 (7) | |
H4N | 0.2880 | 1.4767 | 0.1694 | 0.054* | |
C4 | −0.0314 (3) | 0.7675 (4) | 0.13956 (17) | 0.0327 (6) | |
C5 | 0.0135 (3) | 0.7227 (4) | 0.07149 (19) | 0.0409 (7) | |
H5 | 0.0933 | 0.7583 | 0.0674 | 0.049* | |
C6 | −0.0570 (3) | 0.6275 (5) | 0.0104 (2) | 0.0491 (8) | |
H6 | −0.0260 | 0.5988 | −0.0356 | 0.059* | |
C7 | 0.0261 (3) | 0.9232 (4) | 0.26955 (18) | 0.0348 (6) | |
C8 | 0.1356 (2) | 1.0902 (4) | 0.38836 (16) | 0.0305 (6) | |
C9 | 0.0432 (3) | 1.0957 (4) | 0.43132 (18) | 0.0367 (6) | |
H9 | −0.0329 | 1.0401 | 0.4108 | 0.044* | |
C10 | 0.0610 (3) | 1.1817 (5) | 0.50385 (19) | 0.0435 (8) | |
H10 | −0.0032 | 1.1842 | 0.5325 | 0.052* | |
C11 | 0.1701 (3) | 1.2635 (5) | 0.53523 (18) | 0.0418 (7) | |
H11 | 0.1814 | 1.3211 | 0.5853 | 0.050* | |
C12 | 0.2634 (3) | 1.2609 (4) | 0.49290 (18) | 0.0359 (6) | |
H12 | 0.3386 | 1.3183 | 0.5134 | 0.043* | |
C13 | 0.2462 (2) | 1.1743 (4) | 0.42062 (16) | 0.0297 (5) | |
C14 | 0.4548 (2) | 1.2147 (4) | 0.40545 (17) | 0.0312 (6) | |
C15 | 0.5259 (3) | 1.1477 (4) | 0.47623 (18) | 0.0375 (6) | |
H15 | 0.4908 | 1.0705 | 0.5065 | 0.045* | |
C16 | 0.6488 (3) | 1.1939 (5) | 0.50276 (19) | 0.0417 (7) | |
H16 | 0.6979 | 1.1500 | 0.5518 | 0.050* | |
C17 | 0.6997 (3) | 1.3043 (5) | 0.45735 (19) | 0.0407 (7) | |
H17 | 0.7840 | 1.3358 | 0.4757 | 0.049* | |
C18 | 0.6295 (3) | 1.3696 (4) | 0.38541 (18) | 0.0374 (6) | |
H18 | 0.6658 | 1.4443 | 0.3546 | 0.045* | |
C19 | 0.5055 (3) | 1.3254 (4) | 0.35856 (17) | 0.0319 (6) | |
C20 | 0.4606 (3) | 1.4552 (4) | 0.22158 (18) | 0.0345 (6) | |
C21 | 0.3665 (3) | 1.5712 (4) | 0.08639 (19) | 0.0346 (6) | |
C22 | 0.4558 (3) | 1.6869 (4) | 0.08045 (19) | 0.0391 (7) | |
H22 | 0.5172 | 1.7173 | 0.1273 | 0.047* | |
C23 | 0.4548 (3) | 1.7576 (5) | 0.0059 (2) | 0.0449 (7) | |
H23 | 0.5162 | 1.8364 | 0.0021 | 0.054* | |
C24 | 0.3659 (3) | 1.7156 (5) | −0.0634 (2) | 0.0448 (8) | |
H24 | 0.3658 | 1.7652 | −0.1143 | 0.054* | |
C25 | 0.2777 (3) | 1.6003 (5) | −0.0568 (2) | 0.0468 (8) | |
H25 | 0.2164 | 1.5703 | −0.1038 | 0.056* | |
C26 | 0.2771 (3) | 1.5281 (4) | 0.0171 (2) | 0.0417 (7) | |
H26 | 0.2157 | 1.4491 | 0.0207 | 0.050* | |
O4 | 0.2870 (2) | 0.9862 (5) | 0.19570 (14) | 0.0576 (8) | |
N5 | 0.4865 (2) | 0.9358 (4) | 0.25860 (15) | 0.0422 (6) | |
C27 | 0.3979 (3) | 1.0063 (5) | 0.20292 (18) | 0.0436 (8) | |
H27 | 0.4227 | 1.0786 | 0.1655 | 0.065* | |
C28 | 0.4566 (4) | 0.8214 (5) | 0.3171 (2) | 0.0520 (9) | |
H28A | 0.3726 | 0.7790 | 0.2963 | 0.078* | |
H28B | 0.4613 | 0.8778 | 0.3689 | 0.078* | |
H28C | 0.5157 | 0.7303 | 0.3253 | 0.078* | |
C29 | 0.6164 (3) | 0.9735 (7) | 0.2665 (3) | 0.0654 (12) | |
H29A | 0.6244 | 1.0593 | 0.2274 | 0.098* | |
H29B | 0.6601 | 0.8747 | 0.2556 | 0.098* | |
H29C | 0.6524 | 1.0121 | 0.3219 | 0.098* | |
O5 | 0.1857 (6) | 0.5004 (9) | 0.2790 (4) | 0.0671 (11)* | 0.50 |
N6 | −0.0062 (7) | 0.3841 (11) | 0.2555 (5) | 0.0401 (9)* | 0.50 |
C30 | 0.0876 (6) | 0.4795 (10) | 0.3014 (4) | 0.0455 (11)* | 0.50 |
H30 | 0.0770 | 0.5292 | 0.3502 | 0.055* | 0.50 |
C31 | 0.0181 (8) | 0.3207 (12) | 0.1803 (5) | 0.0566 (10)* | 0.50 |
H31A | −0.0117 | 0.3992 | 0.1362 | 0.085* | 0.50 |
H31B | −0.0251 | 0.2159 | 0.1668 | 0.085* | 0.50 |
H31C | 0.1073 | 0.3041 | 0.1871 | 0.085* | 0.50 |
C32 | −0.1324 (8) | 0.3298 (12) | 0.2555 (5) | 0.0566 (10)* | 0.50 |
H32A | −0.1576 | 0.2436 | 0.2146 | 0.085* | 0.50 |
H32B | −0.1894 | 0.4229 | 0.2424 | 0.085* | 0.50 |
H32C | −0.1343 | 0.2869 | 0.3094 | 0.085* | 0.50 |
O5' | 0.1596 (5) | 0.3843 (9) | 0.2144 (4) | 0.0671 (11)* | 0.50 |
N6' | −0.0096 (7) | 0.4027 (12) | 0.2653 (5) | 0.0401 (9)* | 0.50 |
C30' | 0.0532 (7) | 0.3524 (10) | 0.2138 (5) | 0.0455 (11)* | 0.50 |
H30' | 0.0108 | 0.2831 | 0.1712 | 0.055* | 0.50 |
C31' | 0.0366 (7) | 0.5061 (11) | 0.3332 (5) | 0.0566 (10)* | 0.50 |
H31D | 0.1145 | 0.5561 | 0.3278 | 0.085* | 0.50 |
H31E | 0.0511 | 0.4412 | 0.3834 | 0.085* | 0.50 |
H31F | −0.0240 | 0.5924 | 0.3353 | 0.085* | 0.50 |
C32' | −0.1265 (8) | 0.3719 (13) | 0.2756 (5) | 0.0566 (10)* | 0.50 |
H32D | −0.1433 | 0.2540 | 0.2702 | 0.085* | 0.50 |
H32E | −0.1872 | 0.4313 | 0.2342 | 0.085* | 0.50 |
H32F | −0.1323 | 0.4086 | 0.3299 | 0.085* | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0290 (11) | 0.0458 (15) | 0.0429 (13) | −0.0094 (11) | 0.0133 (10) | −0.0104 (12) |
O1 | 0.0420 (12) | 0.0728 (19) | 0.0552 (13) | −0.0216 (13) | 0.0239 (11) | −0.0253 (13) |
C1 | 0.0487 (18) | 0.0443 (19) | 0.0481 (18) | −0.0029 (16) | 0.0009 (15) | −0.0107 (16) |
N2 | 0.0282 (11) | 0.0417 (14) | 0.0357 (12) | −0.0061 (11) | 0.0129 (9) | −0.0054 (11) |
O2 | 0.0290 (9) | 0.0486 (13) | 0.0329 (9) | −0.0108 (10) | 0.0093 (7) | −0.0012 (10) |
C2 | 0.0309 (14) | 0.0406 (18) | 0.0566 (19) | −0.0002 (13) | 0.0050 (13) | −0.0065 (15) |
O3 | 0.0309 (10) | 0.080 (2) | 0.0430 (11) | −0.0025 (12) | 0.0138 (9) | 0.0070 (13) |
N3 | 0.0253 (11) | 0.0438 (15) | 0.0477 (14) | 0.0001 (11) | 0.0136 (10) | 0.0085 (13) |
C3 | 0.0318 (13) | 0.0387 (17) | 0.0445 (15) | 0.0010 (12) | 0.0082 (12) | −0.0058 (13) |
N4 | 0.0274 (11) | 0.0579 (19) | 0.0509 (15) | −0.0042 (13) | 0.0138 (10) | 0.0129 (14) |
C4 | 0.0293 (13) | 0.0287 (14) | 0.0388 (14) | 0.0008 (11) | 0.0056 (11) | −0.0028 (12) |
C5 | 0.0438 (16) | 0.0362 (17) | 0.0448 (16) | −0.0041 (14) | 0.0149 (13) | −0.0051 (13) |
C6 | 0.059 (2) | 0.048 (2) | 0.0433 (17) | −0.0045 (17) | 0.0180 (15) | −0.0097 (15) |
C7 | 0.0295 (13) | 0.0336 (15) | 0.0424 (15) | −0.0048 (12) | 0.0104 (11) | −0.0027 (12) |
C8 | 0.0305 (13) | 0.0286 (13) | 0.0329 (13) | 0.0006 (11) | 0.0081 (10) | 0.0029 (11) |
C9 | 0.0294 (13) | 0.0417 (16) | 0.0404 (15) | −0.0019 (13) | 0.0111 (11) | 0.0019 (13) |
C10 | 0.0358 (14) | 0.056 (2) | 0.0409 (15) | 0.0076 (15) | 0.0140 (12) | −0.0029 (16) |
C11 | 0.0383 (15) | 0.0491 (19) | 0.0377 (14) | 0.0090 (14) | 0.0084 (12) | −0.0040 (14) |
C12 | 0.0320 (14) | 0.0356 (15) | 0.0384 (14) | 0.0013 (13) | 0.0046 (11) | −0.0037 (13) |
C13 | 0.0285 (12) | 0.0290 (13) | 0.0322 (12) | 0.0021 (11) | 0.0085 (10) | 0.0041 (11) |
C14 | 0.0255 (12) | 0.0305 (14) | 0.0383 (13) | −0.0043 (10) | 0.0088 (10) | −0.0060 (11) |
C15 | 0.0385 (14) | 0.0375 (16) | 0.0372 (14) | −0.0016 (13) | 0.0098 (11) | −0.0032 (13) |
C16 | 0.0361 (15) | 0.0473 (19) | 0.0386 (14) | 0.0044 (14) | 0.0025 (12) | −0.0050 (14) |
C17 | 0.0265 (13) | 0.0485 (19) | 0.0465 (16) | −0.0034 (13) | 0.0069 (11) | −0.0128 (15) |
C18 | 0.0318 (14) | 0.0386 (16) | 0.0443 (15) | −0.0065 (13) | 0.0139 (12) | −0.0073 (14) |
C19 | 0.0302 (13) | 0.0308 (14) | 0.0369 (13) | 0.0012 (11) | 0.0120 (11) | −0.0042 (12) |
C20 | 0.0311 (13) | 0.0339 (15) | 0.0419 (15) | −0.0003 (12) | 0.0153 (11) | −0.0039 (13) |
C21 | 0.0298 (13) | 0.0320 (15) | 0.0445 (15) | 0.0031 (11) | 0.0137 (11) | 0.0029 (13) |
C22 | 0.0374 (14) | 0.0390 (17) | 0.0427 (15) | −0.0049 (13) | 0.0130 (12) | −0.0020 (14) |
C23 | 0.0437 (17) | 0.0413 (18) | 0.0542 (18) | −0.0043 (15) | 0.0204 (14) | 0.0034 (16) |
C24 | 0.0440 (16) | 0.0453 (19) | 0.0475 (17) | 0.0057 (14) | 0.0155 (14) | 0.0110 (15) |
C25 | 0.0440 (17) | 0.0413 (18) | 0.0506 (18) | 0.0042 (15) | 0.0015 (14) | 0.0056 (15) |
C26 | 0.0308 (14) | 0.0353 (16) | 0.0566 (18) | −0.0011 (13) | 0.0057 (13) | 0.0050 (14) |
O4 | 0.0337 (11) | 0.097 (2) | 0.0431 (12) | −0.0073 (14) | 0.0105 (9) | −0.0005 (15) |
N5 | 0.0361 (13) | 0.0534 (18) | 0.0373 (12) | 0.0007 (13) | 0.0085 (10) | −0.0056 (13) |
C27 | 0.0353 (15) | 0.065 (2) | 0.0325 (14) | −0.0025 (15) | 0.0118 (12) | 0.0009 (15) |
C28 | 0.071 (2) | 0.0381 (18) | 0.0484 (18) | 0.0005 (17) | 0.0160 (17) | −0.0008 (16) |
C29 | 0.0347 (16) | 0.098 (4) | 0.061 (2) | 0.007 (2) | 0.0054 (15) | −0.007 (3) |
N1—C7 | 1.358 (4) | C18—H18 | 0.9500 |
N1—C4 | 1.413 (4) | C21—C22 | 1.389 (4) |
N1—H1N | 0.8800 | C21—C26 | 1.393 (5) |
O1—C7 | 1.220 (4) | C22—C23 | 1.382 (5) |
C1—C2 | 1.372 (5) | C22—H22 | 0.9500 |
C1—C6 | 1.393 (5) | C23—C24 | 1.387 (5) |
C1—H1 | 0.9500 | C23—H23 | 0.9500 |
N2—C7 | 1.383 (4) | C24—C25 | 1.381 (5) |
N2—C8 | 1.403 (4) | C24—H24 | 0.9500 |
N2—H2N | 0.8800 | C25—C26 | 1.382 (5) |
O2—C13 | 1.388 (3) | C25—H25 | 0.9500 |
O2—C14 | 1.392 (3) | C26—H26 | 0.9500 |
C2—C3 | 1.396 (4) | O4—C27 | 1.220 (4) |
C2—H2 | 0.9500 | N5—C27 | 1.324 (4) |
O3—C20 | 1.221 (3) | N5—C29 | 1.450 (4) |
N3—C20 | 1.375 (4) | N5—C28 | 1.452 (5) |
N3—C19 | 1.407 (4) | C27—H27 | 0.9500 |
N3—H3N | 0.8800 | C28—H28A | 0.9800 |
C3—C4 | 1.390 (4) | C28—H28B | 0.9800 |
C3—H3 | 0.9500 | C28—H28C | 0.9800 |
N4—C20 | 1.357 (4) | C29—H29A | 0.9800 |
N4—C21 | 1.410 (4) | C29—H29B | 0.9800 |
N4—H4N | 0.8800 | C29—H29C | 0.9800 |
C4—C5 | 1.403 (4) | O5—C30 | 1.245 (8) |
C5—C6 | 1.380 (5) | N6—C30 | 1.383 (10) |
C5—H5 | 0.9500 | N6—C31 | 1.454 (11) |
C6—H6 | 0.9500 | N6—C32 | 1.469 (9) |
C8—C9 | 1.389 (4) | C30—H30 | 0.9500 |
C8—C13 | 1.402 (4) | C31—H31A | 0.9800 |
C9—C10 | 1.385 (5) | C31—H31B | 0.9800 |
C9—H9 | 0.9500 | C31—H31C | 0.9800 |
C10—C11 | 1.376 (5) | C32—H32A | 0.9800 |
C10—H10 | 0.9500 | C32—H32B | 0.9800 |
C11—C12 | 1.389 (4) | C32—H32C | 0.9800 |
C11—H11 | 0.9500 | O5'—C30' | 1.208 (8) |
C12—C13 | 1.385 (4) | N6'—C30' | 1.301 (10) |
C12—H12 | 0.9500 | N6'—C32' | 1.372 (9) |
C14—C15 | 1.383 (4) | N6'—C31' | 1.420 (10) |
C14—C19 | 1.402 (4) | C30'—H30' | 0.9500 |
C15—C16 | 1.385 (4) | C31'—H31D | 0.9800 |
C15—H15 | 0.9500 | C31'—H31E | 0.9800 |
C16—C17 | 1.386 (5) | C31'—H31F | 0.9800 |
C16—H16 | 0.9500 | C32'—H32D | 0.9800 |
C17—C18 | 1.389 (5) | C32'—H32E | 0.9800 |
C17—H17 | 0.9500 | C32'—H32F | 0.9800 |
C18—C19 | 1.393 (4) | ||
C7—N1—C4 | 127.7 (2) | C18—C19—C14 | 118.6 (3) |
C7—N1—H1N | 116.1 | C18—C19—N3 | 124.3 (3) |
C4—N1—H1N | 116.1 | C14—C19—N3 | 117.1 (2) |
C2—C1—C6 | 119.3 (3) | O3—C20—N4 | 123.8 (3) |
C2—C1—H1 | 120.3 | O3—C20—N3 | 123.7 (3) |
C6—C1—H1 | 120.3 | N4—C20—N3 | 112.5 (2) |
C7—N2—C8 | 127.3 (2) | C22—C21—C26 | 119.5 (3) |
C7—N2—H2N | 116.4 | C22—C21—N4 | 122.0 (3) |
C8—N2—H2N | 116.4 | C26—C21—N4 | 118.5 (3) |
C13—O2—C14 | 120.3 (2) | C23—C22—C21 | 119.6 (3) |
C1—C2—C3 | 121.3 (3) | C23—C22—H22 | 120.2 |
C1—C2—H2 | 119.3 | C21—C22—H22 | 120.2 |
C3—C2—H2 | 119.3 | C22—C23—C24 | 121.3 (3) |
C20—N3—C19 | 126.7 (2) | C22—C23—H23 | 119.3 |
C20—N3—H3N | 116.6 | C24—C23—H23 | 119.3 |
C19—N3—H3N | 116.6 | C25—C24—C23 | 118.6 (3) |
C4—C3—C2 | 119.6 (3) | C25—C24—H24 | 120.7 |
C4—C3—H3 | 120.2 | C23—C24—H24 | 120.7 |
C2—C3—H3 | 120.2 | C24—C25—C26 | 121.1 (3) |
C20—N4—C21 | 126.2 (2) | C24—C25—H25 | 119.5 |
C20—N4—H4N | 116.9 | C26—C25—H25 | 119.5 |
C21—N4—H4N | 116.9 | C25—C26—C21 | 119.9 (3) |
C3—C4—C5 | 118.9 (3) | C25—C26—H26 | 120.0 |
C3—C4—N1 | 124.6 (3) | C21—C26—H26 | 120.0 |
C5—C4—N1 | 116.5 (3) | C27—N5—C29 | 122.2 (3) |
C6—C5—C4 | 120.7 (3) | C27—N5—C28 | 120.8 (3) |
C6—C5—H5 | 119.6 | C29—N5—C28 | 116.9 (3) |
C4—C5—H5 | 119.6 | O4—C27—N5 | 125.4 (3) |
C5—C6—C1 | 120.1 (3) | O4—C27—H27 | 117.3 |
C5—C6—H6 | 120.0 | N5—C27—H27 | 117.3 |
C1—C6—H6 | 120.0 | N5—C28—H28A | 109.5 |
O1—C7—N1 | 124.9 (3) | N5—C28—H28B | 109.5 |
O1—C7—N2 | 123.4 (3) | H28A—C28—H28B | 109.5 |
N1—C7—N2 | 111.7 (2) | N5—C28—H28C | 109.5 |
C9—C8—C13 | 117.9 (3) | H28A—C28—H28C | 109.5 |
C9—C8—N2 | 125.1 (3) | H28B—C28—H28C | 109.5 |
C13—C8—N2 | 117.0 (2) | N5—C29—H29A | 109.5 |
C10—C9—C8 | 120.4 (3) | N5—C29—H29B | 109.5 |
C10—C9—H9 | 119.8 | H29A—C29—H29B | 109.5 |
C8—C9—H9 | 119.8 | N5—C29—H29C | 109.5 |
C11—C10—C9 | 121.2 (3) | H29A—C29—H29C | 109.5 |
C11—C10—H10 | 119.4 | H29B—C29—H29C | 109.5 |
C9—C10—H10 | 119.4 | C30—N6—C31 | 114.9 (7) |
C10—C11—C12 | 119.3 (3) | C30—N6—C32 | 139.8 (8) |
C10—C11—H11 | 120.4 | C31—N6—C32 | 105.2 (7) |
C12—C11—H11 | 120.4 | O5—C30—N6 | 120.3 (7) |
C13—C12—C11 | 119.7 (3) | O5—C30—H30 | 119.8 |
C13—C12—H12 | 120.2 | N6—C30—H30 | 119.8 |
C11—C12—H12 | 120.2 | C30'—N6'—C32' | 134.2 (8) |
C12—C13—O2 | 123.9 (2) | C30'—N6'—C31' | 125.3 (7) |
C12—C13—C8 | 121.4 (3) | C32'—N6'—C31' | 100.4 (7) |
O2—C13—C8 | 114.7 (2) | O5'—C30'—N6' | 127.0 (8) |
C15—C14—O2 | 122.5 (3) | O5'—C30'—H30' | 116.5 |
C15—C14—C19 | 121.3 (3) | N6'—C30'—H30' | 116.5 |
O2—C14—C19 | 116.1 (2) | N6'—C31'—H31D | 109.5 |
C14—C15—C16 | 119.6 (3) | N6'—C31'—H31E | 109.5 |
C14—C15—H15 | 120.2 | H31D—C31'—H31E | 109.5 |
C16—C15—H15 | 120.2 | N6'—C31'—H31F | 109.5 |
C15—C16—C17 | 119.7 (3) | H31D—C31'—H31F | 109.5 |
C15—C16—H16 | 120.1 | H31E—C31'—H31F | 109.5 |
C17—C16—H16 | 120.1 | N6'—C32'—H32D | 109.5 |
C16—C17—C18 | 121.0 (3) | N6'—C32'—H32E | 109.5 |
C16—C17—H17 | 119.5 | H32D—C32'—H32E | 109.5 |
C18—C17—H17 | 119.5 | N6'—C32'—H32F | 109.5 |
C17—C18—C19 | 119.8 (3) | H32D—C32'—H32F | 109.5 |
C17—C18—H18 | 120.1 | H32E—C32'—H32F | 109.5 |
C19—C18—H18 | 120.1 | ||
C6—C1—C2—C3 | 0.5 (6) | C19—C14—C15—C16 | 1.8 (5) |
C1—C2—C3—C4 | −0.5 (5) | C14—C15—C16—C17 | −1.2 (5) |
C2—C3—C4—C5 | 0.0 (5) | C15—C16—C17—C18 | −0.1 (5) |
C2—C3—C4—N1 | −179.6 (3) | C16—C17—C18—C19 | 0.7 (5) |
C7—N1—C4—C3 | 0.2 (5) | C17—C18—C19—C14 | −0.1 (4) |
C7—N1—C4—C5 | −179.4 (3) | C17—C18—C19—N3 | 179.3 (3) |
C3—C4—C5—C6 | 0.6 (5) | C15—C14—C19—C18 | −1.1 (4) |
N1—C4—C5—C6 | −179.8 (3) | O2—C14—C19—C18 | −176.3 (3) |
C4—C5—C6—C1 | −0.6 (6) | C15—C14—C19—N3 | 179.4 (3) |
C2—C1—C6—C5 | 0.0 (6) | O2—C14—C19—N3 | 4.3 (4) |
C4—N1—C7—O1 | −4.1 (6) | C20—N3—C19—C18 | 20.4 (5) |
C4—N1—C7—N2 | 176.4 (3) | C20—N3—C19—C14 | −160.2 (3) |
C8—N2—C7—O1 | −3.1 (5) | C21—N4—C20—O3 | −0.4 (6) |
C8—N2—C7—N1 | 176.4 (3) | C21—N4—C20—N3 | 179.9 (3) |
C7—N2—C8—C9 | 3.0 (5) | C19—N3—C20—O3 | −1.3 (5) |
C7—N2—C8—C13 | −176.7 (3) | C19—N3—C20—N4 | 178.4 (3) |
C13—C8—C9—C10 | −0.2 (5) | C20—N4—C21—C22 | −36.4 (5) |
N2—C8—C9—C10 | −179.9 (3) | C20—N4—C21—C26 | 144.9 (3) |
C8—C9—C10—C11 | 0.0 (5) | C26—C21—C22—C23 | −0.1 (5) |
C9—C10—C11—C12 | 0.6 (5) | N4—C21—C22—C23 | −178.8 (3) |
C10—C11—C12—C13 | −1.0 (5) | C21—C22—C23—C24 | 0.2 (5) |
C11—C12—C13—O2 | 178.6 (3) | C22—C23—C24—C25 | −0.2 (5) |
C11—C12—C13—C8 | 0.8 (5) | C23—C24—C25—C26 | 0.2 (5) |
C14—O2—C13—C12 | 15.8 (4) | C24—C25—C26—C21 | −0.1 (5) |
C14—O2—C13—C8 | −166.3 (3) | C22—C21—C26—C25 | 0.0 (5) |
C9—C8—C13—C12 | −0.2 (4) | N4—C21—C26—C25 | 178.8 (3) |
N2—C8—C13—C12 | 179.5 (3) | C29—N5—C27—O4 | −176.1 (4) |
C9—C8—C13—O2 | −178.2 (3) | C28—N5—C27—O4 | 1.2 (6) |
N2—C8—C13—O2 | 1.6 (4) | C31—N6—C30—O5 | −2.7 (13) |
C13—O2—C14—C15 | 54.7 (4) | C32—N6—C30—O5 | −178.0 (11) |
C13—O2—C14—C19 | −130.2 (3) | C32'—N6'—C30'—O5' | −176.1 (11) |
O2—C14—C15—C16 | 176.6 (3) | C31'—N6'—C30'—O5' | −0.2 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O4 | 0.88 | 1.99 | 2.847 (4) | 163 |
N2—H2N···O4 | 0.88 | 2.17 | 2.977 (4) | 153 |
N3—H3N···O5i | 0.88 | 2.03 | 2.809 (8) | 147 |
N3—H3N···O5′i | 0.88 | 2.14 | 2.935 (7) | 150 |
N4—H4N···O5′i | 0.88 | 1.92 | 2.765 (8) | 161 |
N4—H4N···O5i | 0.88 | 2.40 | 3.101 (8) | 137 |
C24—H24···O3ii | 0.95 | 2.68 | 3.573 (5) | 157 |
C32—H32B···O3iii | 0.98 | 2.67 | 3.455 (11) | 138 |
C31—H31A···Cg1 | 0.98 | 2.53 | 3.440 (4) | 154 |
Symmetry codes: (i) x, y+1, z; (ii) −x+1, y+1/2, −z; (iii) x−1, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C26H22N4O3·2(C3H7NO) |
Mr | 584.67 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 180 |
a, b, c (Å) | 11.1035 (2), 8.1564 (2), 16.8881 (3) |
β (°) | 103.429 (1) |
V (Å3) | 1487.65 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.46 × 0.35 × 0.23 |
Data collection | |
Diffractometer | Nonius KappaCCD |
Absorption correction | Multi-scan (SORTAV; Blessing, 1995) |
Tmin, Tmax | 0.905, 0.979 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16291, 3643, 3337 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.140, 1.04 |
No. of reflections | 3643 |
No. of parameters | 385 |
No. of restraints | 25 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.79, −0.36 |
Computer programs: COLLECT (Nonius, 1998), SCALEPACK (Otwinowski & Minor, 1997), DENZO (Otwinowski & Minor, 1997) and SCALEPACK, SHELXS97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 1997), enCIFer (Allen et al., 2004) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O4 | 0.88 | 1.99 | 2.847 (4) | 163 |
N2—H2N···O4 | 0.88 | 2.17 | 2.977 (4) | 153 |
N3—H3N···O5i | 0.88 | 2.03 | 2.809 (8) | 147 |
N3—H3N···O5'i | 0.88 | 2.14 | 2.935 (7) | 150 |
N4—H4N···O5'i | 0.88 | 1.92 | 2.765 (8) | 161 |
N4—H4N···O5i | 0.88 | 2.40 | 3.101 (8) | 137 |
C24—H24···O3ii | 0.95 | 2.68 | 3.573 (5) | 157 |
C32—H32B···O3iii | 0.98 | 2.67 | 3.455 (11) | 138 |
C31—H31A···Cg1 | 0.98 | 2.53 | 3.440 (4) | 154 |
Symmetry codes: (i) x, y+1, z; (ii) −x+1, y+1/2, −z; (iii) x−1, y−1, z. |
Acknowledgements
The authors thank Dr John Davies, University of Cambridge, for the X-ray data collection.
References
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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.
While a large amount of work has been done on organic-metal cation complexes, there is much less known about analogous organic-anion complexes. We are interested in looking at diureas as potential anion binding agents. Ureas and thioureas have previously shown some promise in this area, and bind to anions such as fluoride and chloride through the hydrogen atoms attached to the urea N atoms (Gunnlaugsson et al., 2004; Kim & Kim, 2005).
The title diurea compound, (I), was synthesized by the reaction of phenyl isocyanate and an aromatic diamine. The crystal structure shows that the bis-2,2-oxyphenyl motif used here may not be optimal for anion binding, as the urea units are splayed away from each other, though some of this may be due to binding to the solvent in the solid state. Initial NMR studies showed some affinity for both fluoride and chloride anions in chloroform.
The asymmetric unit of (I) comprises a 1,1'-(2,2'-oxybis(2,1-phenylene))bis(3-phenylurea) molecule and two molecules of dimethylformamide solvate, one of which is disordered equally over two positions (Fig. 1). The two diphenylurea segments of the molecule are linked via the ether O2 atom to form a V-shaped molecule with the arms inclined at an angle of 53.80 (4)° to one another. One 1,3-diphenylurea segment of the molecule, incorporating atoms C1···O2, is reasonably planar with an r.m.s. deviation from the plane through all 17 atoms of 0.029 Å. Also, the C1···C6 ring makes a dihedral angle of only 2.8 (2)° with the C8···C13 ring plane. In contrast, the correponding deviation from the plane through the 17 atoms that make up the second O2···C26 diphenylurea unit is 0.241Å with the C41···C19 and C21···C26 rings inclined at 24.08 (18)°. This variation is undoubtedly due to crystal packing effects.
In the crystal, classical N—H···O hydrogen bonds link each molecule to two DMF solvates (Table 1) and these aggregates form columns down a through an additional C31—H31A···Cg1 interaction, where Cg1 is the centroid of the C1···C6 ring. Then, C—H···O interactions further link the molecule and solvates into zigzag chains along b. The combination of these interactions stacks the chains into independent but interleaving columns, down a, as shown in Fig. 2.